-/****************************************************************************
-* SPLAT: An RF Signal Propagation Loss and Terrain Analysis Tool *
-* Last update: 31-Mar-2006 *
-*****************************************************************************
-* Project started in 1997 by John A. Magliacane, KD2BD *
-*****************************************************************************
-* *
-* Extensively modified by J. D. McDonald in Jan. 2004 to include *
-* the Longley-Rice propagation model using C++ code from NTIA/ITS. *
-* *
-* See: http://flattop.its.bldrdoc.gov/itm.html *
-* *
-*****************************************************************************
-* *
-* This program is free software; you can redistribute it and/or modify it *
-* under the terms of the GNU General Public License as published by the *
-* Free Software Foundation; either version 2 of the License or any later *
-* version. *
-* *
-* This program is distributed in the hope that it will useful, but WITHOUT *
-* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
-* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
-* for more details. *
-* *
-*****************************************************************************
- g++ -Wall -O3 -s -lm -lbz2 -fomit-frame-pointer itm.cpp splat.cpp -o splat
-*****************************************************************************/
+/****************************************************************************\
+* SPLAT!: An RF Signal Path Loss And Terrain Analysis Tool *
+******************************************************************************
+* Project started in 1997 by John A. Magliacane, KD2BD *
+* Last update: 10-Apr-2009 *
+******************************************************************************
+* Please consult the documentation for a complete list of *
+* individuals who have contributed to this project. *
+******************************************************************************
+* *
+* This program is free software; you can redistribute it and/or modify it *
+* under the terms of the GNU General Public License as published by the *
+* Free Software Foundation; either version 2 of the License or any later *
+* version. *
+* *
+* This program is distributed in the hope that it will useful, but WITHOUT *
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
+* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
+* for more details. *
+* *
+******************************************************************************
+* g++ -Wall -O3 -s -lm -lbz2 -fomit-frame-pointer itm.cpp splat.cpp -o splat *
+\****************************************************************************/
#include <stdio.h>
#include <math.h>
#include <bzlib.h>
#include <unistd.h>
#include "fontdata.h"
-#include "smallfont.h"
+#include "splat.h"
#define GAMMA 2.5
-#define MAXSLOTS 9
#define BZBUFFER 65536
-#if MAXSLOTS==4
-#define ARRAYSIZE 4950
+#if HD_MODE==0
+ #if MAXPAGES==4
+ #define ARRAYSIZE 4950
+ #endif
+
+ #if MAXPAGES==9
+ #define ARRAYSIZE 10870
+ #endif
+
+ #if MAXPAGES==16
+ #define ARRAYSIZE 19240
+ #endif
+
+ #if MAXPAGES==25
+ #define ARRAYSIZE 30025
+ #endif
+
+ #if MAXPAGES==36
+ #define ARRAYSIZE 43217
+ #endif
+
+ #if MAXPAGES==49
+ #define ARRAYSIZE 58813
+ #endif
+
+ #if MAXPAGES==64
+ #define ARRAYSIZE 76810
+ #endif
+
+ #define IPPD 1200
+#endif
+
+#if HD_MODE==1
+ #if MAXPAGES==1
+ #define ARRAYSIZE 5092
+ #endif
+
+ #if MAXPAGES==4
+ #define ARRAYSIZE 14844
+ #endif
+
+ #if MAXPAGES==9
+ #define ARRAYSIZE 32600
+ #endif
+
+ #if MAXPAGES==16
+ #define ARRAYSIZE 57713
+ #endif
+
+ #if MAXPAGES==25
+ #define ARRAYSIZE 90072
+ #endif
+
+ #if MAXPAGES==36
+ #define ARRAYSIZE 129650
+ #endif
+
+ #if MAXPAGES==49
+ #define ARRAYSIZE 176437
+ #endif
+
+ #if MAXPAGES==64
+ #define ARRAYSIZE 230430
+ #endif
+
+ #define IPPD 3600
#endif
-#if MAXSLOTS==9
-#define ARRAYSIZE 10870
+#ifndef PI
+#define PI 3.141592653589793
#endif
-#if MAXSLOTS==16
-#define ARRAYSIZE 19240
+#ifndef TWOPI
+#define TWOPI 6.283185307179586
#endif
-#if MAXSLOTS==25
-#define ARRAYSIZE 30025
+#ifndef HALFPI
+#define HALFPI 1.570796326794896
#endif
-char string[255], sdf_path[255], opened=0, *splat_version={"1.1.1"};
-
-double TWOPI=6.283185307179586, HALFPI=1.570796326794896,
- PI=3.141592653589793, deg2rad=1.74532925199e-02,
- EARTHRADIUS=20902230.97, METERS_PER_MILE=1609.344,
- METERS_PER_FOOT=0.3048, earthradius, max_range=0.0;
-
-int min_north=90, max_north=-90, min_west=360, max_west=-1,
- max_elevation=-32768, min_elevation=32768, bzerror, maxdB=230;
-
-struct site { double lat;
- double lon;
- double alt;
- char name[50];
- } site;
-
-struct path { float lat[ARRAYSIZE];
- float lon[ARRAYSIZE];
- float elevation[ARRAYSIZE];
- float distance[ARRAYSIZE];
- int length;
- } path;
-
-struct dem { int min_north;
- int max_north;
- int min_west;
- int max_west;
- int max_el;
- int min_el;
- short data[1200][1200];
- unsigned char mask[1200][1200];
- } dem[MAXSLOTS];
-
-struct LR { double eps_dielect;
- double sgm_conductivity;
- double eno_ns_surfref;
- double frq_mhz;
- double conf;
- double rel;
- int radio_climate;
- int pol;
- } LR;
-
-double elev_l[ARRAYSIZE+10];
+#define DEG2RAD 1.74532925199e-02
+#define EARTHRADIUS 20902230.97
+#define METERS_PER_MILE 1609.344
+#define METERS_PER_FOOT 0.3048
+#define KM_PER_MILE 1.609344
+#define FOUR_THIRDS 1.3333333333333
+
+char string[255], sdf_path[255], opened=0, gpsav=0, splat_name[10],
+ splat_version[6], dashes[80];
+
+double earthradius, max_range=0.0, forced_erp=-1.0, dpp, ppd,
+ fzone_clearance=0.6, forced_freq, clutter;
+
+int min_north=90, max_north=-90, min_west=360, max_west=-1, ippd, mpi,
+ max_elevation=-32768, min_elevation=32768, bzerror, contour_threshold;
+
+unsigned char got_elevation_pattern, got_azimuth_pattern, metric=0, dbm=0;
+
+struct site { double lat;
+ double lon;
+ float alt;
+ char name[50];
+ char filename[255];
+ } site;
+
+struct path { double lat[ARRAYSIZE];
+ double lon[ARRAYSIZE];
+ double elevation[ARRAYSIZE];
+ double distance[ARRAYSIZE];
+ int length;
+ } path;
+
+struct dem { int min_north;
+ int max_north;
+ int min_west;
+ int max_west;
+ int max_el;
+ int min_el;
+ short data[IPPD][IPPD];
+ unsigned char mask[IPPD][IPPD];
+ unsigned char signal[IPPD][IPPD];
+ } dem[MAXPAGES];
+
+struct LR { double eps_dielect;
+ double sgm_conductivity;
+ double eno_ns_surfref;
+ double frq_mhz;
+ double conf;
+ double rel;
+ double erp;
+ int radio_climate;
+ int pol;
+ float antenna_pattern[361][1001];
+ } LR;
+
+struct region { unsigned char color[32][3];
+ int level[32];
+ int levels;
+ } region;
+
+double elev[ARRAYSIZE+10];
void point_to_point(double elev[], double tht_m, double rht_m,
double eps_dielect, double sgm_conductivity, double eno_ns_surfref,
double temp;
- temp=acos(cos(angle*deg2rad));
+ temp=acos(cos(angle*DEG2RAD));
+
+ return (int)rint(temp/DEG2RAD);
+}
+
+double LonDiff(double lon1, double lon2)
+{
+ /* This function returns the short path longitudinal
+ difference between longitude1 and longitude2
+ as an angle between -180.0 and +180.0 degrees.
+ If lon1 is west of lon2, the result is positive.
+ If lon1 is east of lon2, the result is negative. */
+
+ double diff;
+
+ diff=lon1-lon2;
+
+ if (diff<=-180.0)
+ diff+=360.0;
+
+ if (diff>=180.0)
+ diff-=360.0;
- return (int)rint(temp/deg2rad);
+ return diff;
}
char *dec2dms(double decimal)
{
/* Converts decimal degrees to degrees, minutes, seconds,
(DMS) and returns the result as a character string. */
-
- int degrees, minutes, seconds;
- double a, b, c, d;
+
+ char sign;
+ int degrees, minutes, seconds;
+ double a, b, c, d;
if (decimal<0.0)
+ {
decimal=-decimal;
+ sign=-1;
+ }
+
+ else
+ sign=1;
a=floor(decimal);
b=60.0*(decimal-a);
seconds=59;
string[0]=0;
- sprintf(string,"%d%c %d\' %d\"", degrees, 176, minutes, seconds);
+ snprintf(string,250,"%d%c %d\' %d\"", degrees*sign, 176, minutes, seconds);
return (string);
}
+int PutMask(double lat, double lon, int value)
+{
+ /* Lines, text, markings, and coverage areas are stored in a
+ mask that is combined with topology data when topographic
+ maps are generated by SPLAT!. This function sets and resets
+ bits in the mask based on the latitude and longitude of the
+ area pointed to. */
+
+ int x, y, indx;
+ char found;
+
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x=(int)rint(ppd*(lat-dem[indx].min_north));
+ y=mpi-(int)rint(ppd*(LonDiff(dem[indx].max_west,lon)));
+
+ if (x>=0 && x<=mpi && y>=0 && y<=mpi)
+ found=1;
+ else
+ indx++;
+ }
+
+ if (found)
+ {
+ dem[indx].mask[x][y]=value;
+ return ((int)dem[indx].mask[x][y]);
+ }
+
+ else
+ return -1;
+}
+
int OrMask(double lat, double lon, int value)
{
/* Lines, text, markings, and coverage areas are stored in a
the mask based on the latitude and longitude of the area
pointed to. */
- int x, y, indx, minlat, minlon;
- char found;
+ int x, y, indx;
+ char found;
- minlat=(int)floor(lat);
- minlon=(int)floor(lon);
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x=(int)rint(ppd*(lat-dem[indx].min_north));
+ y=mpi-(int)rint(ppd*(LonDiff(dem[indx].max_west,lon)));
- for (indx=0, found=0; indx<MAXSLOTS && found==0;)
- if (minlat==dem[indx].min_north && minlon==dem[indx].min_west)
+ if (x>=0 && x<=mpi && y>=0 && y<=mpi)
found=1;
else
indx++;
+ }
if (found)
{
- x=(int)(1199.0*(lat-floor(lat)));
- y=(int)(1199.0*(lon-floor(lon)));
-
dem[indx].mask[x][y]|=value;
-
- return (dem[indx].mask[x][y]);
+ return ((int)dem[indx].mask[x][y]);
}
else
return (OrMask(lat,lon,0));
}
+int PutSignal(double lat, double lon, unsigned char signal)
+{
+ /* This function writes a signal level (0-255)
+ at the specified location for later recall. */
+
+ int x, y, indx;
+ char found;
+
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x=(int)rint(ppd*(lat-dem[indx].min_north));
+ y=mpi-(int)rint(ppd*(LonDiff(dem[indx].max_west,lon)));
+
+ if (x>=0 && x<=mpi && y>=0 && y<=mpi)
+ found=1;
+ else
+ indx++;
+ }
+
+ if (found)
+ {
+ dem[indx].signal[x][y]=signal;
+ return (dem[indx].signal[x][y]);
+ }
+
+ else
+ return 0;
+}
+
+unsigned char GetSignal(double lat, double lon)
+{
+ /* This function reads the signal level (0-255) at the
+ specified location that was previously written by the
+ complimentary PutSignal() function. */
+
+ int x, y, indx;
+ char found;
+
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x=(int)rint(ppd*(lat-dem[indx].min_north));
+ y=mpi-(int)rint(ppd*(LonDiff(dem[indx].max_west,lon)));
+
+ if (x>=0 && x<=mpi && y>=0 && y<=mpi)
+ found=1;
+ else
+ indx++;
+ }
+
+ if (found)
+ return (dem[indx].signal[x][y]);
+ else
+ return 0;
+}
+
double GetElevation(struct site location)
{
/* This function returns the elevation (in feet) of any location
represented by the digital elevation model data in memory.
Function returns -5000.0 for locations not found in memory. */
- char found;
- int x, y, indx, minlat, minlon;
- double elevation;
+ char found;
+ int x, y, indx;
+ double elevation;
+
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x=(int)rint(ppd*(location.lat-dem[indx].min_north));
+ y=mpi-(int)rint(ppd*(LonDiff(dem[indx].max_west,location.lon)));
+
+ if (x>=0 && x<=mpi && y>=0 && y<=mpi)
+ found=1;
+ else
+ indx++;
+ }
- elevation=-5000.0;
+ if (found)
+ elevation=3.28084*dem[indx].data[x][y];
+ else
+ elevation=-5000.0;
+
+ return elevation;
+}
- minlat=(int)floor(location.lat);
- minlon=(int)floor(location.lon);
+int AddElevation(double lat, double lon, double height)
+{
+ /* This function adds a user-defined terrain feature
+ (in meters AGL) to the digital elevation model data
+ in memory. Does nothing and returns 0 for locations
+ not found in memory. */
- x=(int)(1199.0*(location.lat-floor(location.lat)));
- y=(int)(1199.0*(location.lon-floor(location.lon)));
+ char found;
+ int x, y, indx;
- for (indx=0, found=0; indx<MAXSLOTS && found==0; indx++)
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
{
- if (minlat==dem[indx].min_north && minlon==dem[indx].min_west)
- {
+ x=(int)rint(ppd*(lat-dem[indx].min_north));
+ y=mpi-(int)rint(ppd*(LonDiff(dem[indx].max_west,lon)));
- elevation=3.28084*dem[indx].data[x][y];
+ if (x>=0 && x<=mpi && y>=0 && y<=mpi)
found=1;
- }
+ else
+ indx++;
}
-
- return elevation;
+
+ if (found)
+ dem[indx].data[x][y]+=(short)rint(height);
+
+ return found;
}
double Distance(struct site site1, struct site site2)
/* This function returns the great circle distance
in miles between any two site locations. */
- double lat1, lon1, lat2, lon2, distance;
+ double lat1, lon1, lat2, lon2, distance;
- lat1=site1.lat*deg2rad;
- lon1=site1.lon*deg2rad;
- lat2=site2.lat*deg2rad;
- lon2=site2.lon*deg2rad;
+ lat1=site1.lat*DEG2RAD;
+ lon1=site1.lon*DEG2RAD;
+ lat2=site2.lat*DEG2RAD;
+ lon2=site2.lon*DEG2RAD;
distance=3959.0*acos(sin(lat1)*sin(lat2)+cos(lat1)*cos(lat2)*cos((lon1)-(lon2)));
/* This function returns the azimuth (in degrees) to the
destination as seen from the location of the source. */
- double dest_lat, dest_lon, src_lat, src_lon,
- beta, azimuth, diff, num, den, fraction;
+ double dest_lat, dest_lon, src_lat, src_lon,
+ beta, azimuth, diff, num, den, fraction;
- dest_lat=destination.lat*deg2rad;
- dest_lon=destination.lon*deg2rad;
+ dest_lat=destination.lat*DEG2RAD;
+ dest_lon=destination.lon*DEG2RAD;
- src_lat=source.lat*deg2rad;
- src_lon=source.lon*deg2rad;
+ src_lat=source.lat*DEG2RAD;
+ src_lon=source.lon*DEG2RAD;
/* Calculate Surface Distance */
if (diff>0.0)
azimuth=TWOPI-azimuth;
- return (azimuth/deg2rad);
+ return (azimuth/DEG2RAD);
}
-double ElevationAngle(struct site local, struct site remote)
+double ElevationAngle(struct site source, struct site destination)
{
/* This function returns the angle of elevation (in degrees)
- of the remote location as seen from the local site.
+ of the destination as seen from the source location.
A positive result represents an angle of elevation (uptilt),
while a negative result represents an angle of depression
(downtilt), as referenced to a normal to the center of
register double a, b, dx;
- a=GetElevation(remote)+remote.alt+earthradius;
- b=GetElevation(local)+local.alt+earthradius;
+ a=GetElevation(destination)+destination.alt+earthradius;
+ b=GetElevation(source)+source.alt+earthradius;
- dx=5280.0*Distance(local,remote);
+ dx=5280.0*Distance(source,destination);
/* Apply the Law of Cosines */
void ReadPath(struct site source, struct site destination)
{
/* This function generates a sequence of latitude and
- longitude positions between a source location and
- a destination along a great circle path, and stores
- elevation and distance information for points along
- that path in the "path" structure for later use. */
-
- int c;
- double azimuth, distance, lat1, lon1, beta,
- den, num, lat2, lon2, total_distance;
- struct site tempsite;
-
- lat1=source.lat*deg2rad;
- lon1=source.lon*deg2rad;
- azimuth=Azimuth(source,destination)*deg2rad;
+ longitude positions between source and destination
+ locations along a great circle path, and stores
+ elevation and distance information for points
+ along that path in the "path" structure. */
+
+ int c;
+ double azimuth, distance, lat1, lon1, beta, den, num,
+ lat2, lon2, total_distance, dx, dy, path_length,
+ miles_per_sample, samples_per_radian=68755.0;
+ struct site tempsite;
+
+ lat1=source.lat*DEG2RAD;
+ lon1=source.lon*DEG2RAD;
+
+ lat2=destination.lat*DEG2RAD;
+ lon2=destination.lon*DEG2RAD;
+
+ if (ppd==1200.0)
+ samples_per_radian=68755.0;
+
+ if (ppd==3600.0)
+ samples_per_radian=206265.0;
+
+ azimuth=Azimuth(source,destination)*DEG2RAD;
+
total_distance=Distance(source,destination);
- for (distance=0, c=0; distance<=total_distance; distance+=0.04)
+ if (total_distance>(30.0/ppd)) /* > 0.5 pixel distance */
+ {
+ dx=samples_per_radian*acos(cos(lon1-lon2));
+ dy=samples_per_radian*acos(cos(lat1-lat2));
+
+ path_length=sqrt((dx*dx)+(dy*dy)); /* Total number of samples */
+
+ miles_per_sample=total_distance/path_length; /* Miles per sample */
+ }
+
+ else
+ {
+ c=0;
+ dx=0.0;
+ dy=0.0;
+ path_length=0.0;
+ miles_per_sample=0.0;
+ total_distance=0.0;
+
+ lat1=lat1/DEG2RAD;
+ lon1=lon1/DEG2RAD;
+
+ path.lat[c]=lat1;
+ path.lon[c]=lon1;
+ path.elevation[c]=GetElevation(source);
+ path.distance[c]=0.0;
+ }
+
+ for (distance=0.0, c=0; (total_distance!=0.0 && distance<=total_distance && c<ARRAYSIZE); c++, distance=miles_per_sample*(double)c)
{
beta=distance/3959.0;
lat2=asin(sin(lat1)*cos(beta)+cos(azimuth)*sin(beta)*cos(lat1));
lon2=lon1+PI;
else if (azimuth==HALFPI && (beta>HALFPI+lat1))
- lon2=lon1+PI;
+ lon2=lon1+PI;
else if (fabs(num/den)>1.0)
- lon2=lon1;
+ lon2=lon1;
else
{
while (lon2>TWOPI)
lon2-=TWOPI;
- lat2=lat2/deg2rad;
- lon2=lon2/deg2rad;
-
- if (c<ARRAYSIZE)
- {
- path.lat[c]=lat2;
- path.lon[c]=lon2;
- tempsite.lat=lat2;
- tempsite.lon=lon2;
- path.elevation[c]=GetElevation(tempsite);
- path.distance[c]=distance;
- c++;
- }
+ lat2=lat2/DEG2RAD;
+ lon2=lon2/DEG2RAD;
+
+ path.lat[c]=lat2;
+ path.lon[c]=lon2;
+ tempsite.lat=lat2;
+ tempsite.lon=lon2;
+ path.elevation[c]=GetElevation(tempsite);
+ path.distance[c]=distance;
}
/* Make sure exact destination point is recorded at path.length-1 */
path.length=ARRAYSIZE-1;
}
+double ElevationAngle2(struct site source, struct site destination, double er)
+{
+ /* This function returns the angle of elevation (in degrees)
+ of the destination as seen from the source location, UNLESS
+ the path between the sites is obstructed, in which case, the
+ elevation angle to the first obstruction is returned instead.
+ "er" represents the earth radius. */
+
+ int x;
+ char block=0;
+ double source_alt, destination_alt, cos_xmtr_angle,
+ cos_test_angle, test_alt, elevation, distance,
+ source_alt2, first_obstruction_angle=0.0;
+ struct path temp;
+
+ temp=path;
+
+ ReadPath(source,destination);
+
+ distance=5280.0*Distance(source,destination);
+ source_alt=er+source.alt+GetElevation(source);
+ destination_alt=er+destination.alt+GetElevation(destination);
+ source_alt2=source_alt*source_alt;
+
+ /* Calculate the cosine of the elevation angle of the
+ destination (receiver) as seen by the source (transmitter). */
+
+ cos_xmtr_angle=((source_alt2)+(distance*distance)-(destination_alt*destination_alt))/(2.0*source_alt*distance);
+
+ /* Test all points in between source and destination locations to
+ see if the angle to a topographic feature generates a higher
+ elevation angle than that produced by the destination. Begin
+ at the source since we're interested in identifying the FIRST
+ obstruction along the path between source and destination. */
+
+ for (x=2, block=0; x<path.length && block==0; x++)
+ {
+ distance=5280.0*path.distance[x];
+
+ test_alt=earthradius+(path.elevation[x]==0.0?path.elevation[x]:path.elevation[x]+clutter);
+
+ cos_test_angle=((source_alt2)+(distance*distance)-(test_alt*test_alt))/(2.0*source_alt*distance);
+
+ /* Compare these two angles to determine if
+ an obstruction exists. Since we're comparing
+ the cosines of these angles rather than
+ the angles themselves, the sense of the
+ following "if" statement is reversed from
+ what it would be if the angles themselves
+ were compared. */
+
+ if (cos_xmtr_angle>=cos_test_angle)
+ {
+ block=1;
+ first_obstruction_angle=((acos(cos_test_angle))/DEG2RAD)-90.0;
+ }
+ }
+
+ if (block)
+ elevation=first_obstruction_angle;
+
+ else
+ elevation=((acos(cos_xmtr_angle))/DEG2RAD)-90.0;
+
+ path=temp;
+
+ return elevation;
+}
+
double AverageTerrain(struct site source, double azimuthx, double start_distance, double end_distance)
{
/* This function returns the average terrain calculated in
memory to complete the survey (critical error), then
-9999.0 is returned. */
- int c, samples, endpoint;
- double beta, lat1, lon1, lat2, lon2, num, den, azimuth, terrain=0.0;
- struct site destination;
+ int c, samples, endpoint;
+ double beta, lat1, lon1, lat2, lon2, num, den, azimuth, terrain=0.0;
+ struct site destination;
- lat1=source.lat*deg2rad;
- lon1=source.lon*deg2rad;
+ lat1=source.lat*DEG2RAD;
+ lon1=source.lon*DEG2RAD;
/* Generate a path of elevations between the source
location and the remote location provided. */
beta=end_distance/3959.0;
- azimuth=deg2rad*azimuthx;
+ azimuth=DEG2RAD*azimuthx;
lat2=asin(sin(lat1)*cos(beta)+cos(azimuth)*sin(beta)*cos(lat1));
num=cos(beta)-(sin(lat1)*sin(lat2));
lon2=lon1+PI;
else if (azimuth==HALFPI && (beta>HALFPI+lat1))
- lon2=lon1+PI;
+ lon2=lon1+PI;
else if (fabs(num/den)>1.0)
- lon2=lon1;
+ lon2=lon1;
else
{
while (lon2>TWOPI)
lon2-=TWOPI;
- lat2=lat2/deg2rad;
- lon2=lon2/deg2rad;
+ lat2=lat2/DEG2RAD;
+ lon2=lon2/DEG2RAD;
destination.lat=lat2;
destination.lon=lon2;
{
if (path.distance[c]>=start_distance)
{
- terrain+=path.elevation[c];
+ terrain+=(path.elevation[c]==0.0?path.elevation[c]:path.elevation[c]+clutter);
samples++;
}
}
error occurs, such as a lack of SDF data to complete the
survey, -5000.0 is returned. */
- int azi, c;
- char error=0;
- double terrain, avg_terrain, haat, sum=0.0;
+ int azi, c;
+ char error=0;
+ double terrain, avg_terrain, haat, sum=0.0;
/* Calculate the average terrain between 2 and 10 miles
from the antenna site at azimuths of 0, 45, 90, 135,
}
}
-float LonDiff(float lon1, float lon2)
-{
- /* This function returns the short path longitudinal
- difference between longitude1 and longitude2
- as an angle between -180.0 and +180.0 degrees.
- If lon1 is west of lon2, the result is positive.
- If lon1 is east of lon2, the result is negative. */
-
- float diff;
-
- diff=lon1-lon2;
-
- if (diff<=-180.0)
- diff+=360.0;
-
- if (diff>=180.0)
- diff-=360.0;
-
- return diff;
-}
-
void PlaceMarker(struct site location)
{
/* This function places text and marker data in the mask array
double x, y, lat, lon, textx=0.0, texty=0.0, xmin, xmax,
ymin, ymax, p1, p3, p6, p8, p12, p16, p24, label_length;
- xmin=min_north;
- xmax=max_north;
- ymin=min_west;
- ymax=max_west;
+ xmin=(double)min_north;
+ xmax=(double)max_north;
+ ymin=(double)min_west;
+ ymax=(double)max_west;
lat=location.lat;
lon=location.lon;
-
- if (lat<xmax && lat>xmin && (LonDiff(lon,ymax)<0.0) && (LonDiff(lon,ymin)>0.0))
+ if (lat<xmax && lat>=xmin && (LonDiff(lon,ymax)<=0.0) && (LonDiff(lon,ymin)>=dpp))
{
- p1=1.0/1200.0;
- p3=3.0/1200.0;
- p6=6.0/1200.0;
- p8=8.0/1200.0;
- p12=12.0/1200.0;
- p16=16.0/1200.0;
- p24=24.0/1200.0;
+ p1=1.0/ppd;
+ p3=3.0/ppd;
+ p6=6.0/ppd;
+ p8=8.0/ppd;
+ p12=12.0/ppd;
+ p16=16.0/ppd;
+ p24=24.0/ppd;
+
ok2print=0;
occupied=0;
/* Is Marker Position Clear Of Text Or Other Markers? */
- for (x=lat-p3; (x<=xmax && x>=xmin && x<=lat+p3); x+=p1)
- for (y=lon-p3; (LonDiff(y,ymax)<=0.0) && (LonDiff(y,ymin)>=0.0) && (LonDiff(y,lon+p3)<=0.0); y+=p1)
+ for (a=0, x=lat-p3; (x<=xmax && x>=xmin && a<7); x+=p1, a++)
+ for (b=0, y=lon-p3; (LonDiff(y,ymax)<=0.0) && (LonDiff(y,ymin)>=dpp) && b<7; y+=p1, b++)
occupied|=(GetMask(x,y)&2);
if (occupied==0)
label_length=p1*(double)(strlen(location.name)<<3);
- if ((LonDiff(lon+label_length,ymax)<=0.0) && (LonDiff(lon-label_length,ymin)>=0.0))
+ if ((LonDiff(lon+label_length,ymax)<=0.0) && (LonDiff(lon-label_length,ymin)>=dpp))
{
/* Default: Centered Text */
if (ok2print==0)
{
- if (LonDiff(lon-label_length,ymin)>=0.0)
+ if (LonDiff(lon-label_length,ymin)>=dpp)
{
/* Position Text To The
Right Of The Marker */
x=textx;
y=texty;
-
- for (a=0; a<16 && ok2print; a++)
+
+ for (a=0; a<16; a++)
{
for (b=0; b<(int)strlen(location.name); b++)
{
/* Draw Square Marker Centered
On Location Specified */
-
- for (x=lat-p3; (x<=xmax && x>=xmin && x<=lat+p3); x+=p1)
- for (y=lon-p3; (LonDiff(y,ymax)<=0.0) && (LonDiff(y,ymin)>=0.0) && (LonDiff(y,lon+p3)<=0.0); y+=p1)
+
+ for (a=0, x=lat-p3; (x<=xmax && x>=xmin && a<7); x+=p1, a++)
+ for (b=0, y=lon-p3; (LonDiff(y,ymax)<=0.0) && (LonDiff(y,ymin)>=dpp) && b<7; y+=p1, b++)
OrMask(x,y,2);
}
}
embedded within the numbers expressed in the
input string. Decimal seconds are permitted. */
- double seconds, bearing=0.0;
- char string[20];
- int a, b, length, degrees, minutes;
+ double seconds, bearing=0.0;
+ char string[20];
+ int a, b, length, degrees, minutes;
/* Copy "input" to "string", and ignore any extra
spaces that might be present in the process. */
for (a=0, b=0; a<length && a<18; a++)
{
- if ((input[a]!=32 && input[a]!='\n') || (input[a]==32 && input[a+1]!=32 && b!=0))
+ if ((input[a]!=32 && input[a]!='\n') || (input[a]==32 && input[a+1]!=32 && input[a+1]!='\n' && b!=0))
{
string[b]=input[a];
b++;
if (b==0) /* Decimal Format (40.139722) */
sscanf(string,"%lf",&bearing);
- if (b==2) /* Degree, Minute, Second Format (40 08 23) */
+ if (b==2) /* Degree, Minute, Second Format (40 08 23.xx) */
{
sscanf(string,"%d %d %lf",°rees, &minutes, &seconds);
- bearing=(double)degrees+((double)minutes/60)+(seconds/3600);
+
+ bearing=fabs((double)degrees);
+ bearing+=fabs(((double)minutes)/60.0);
+ bearing+=fabs(seconds/3600.0);
+
+ if ((degrees<0) || (minutes<0) || (seconds<0.0))
+ bearing=-bearing;
}
/* Anything else returns a 0.0 */
- if (bearing>360.0 || bearing<-90.0)
+ if (bearing>360.0 || bearing<-360.0)
bearing=0.0;
return bearing;
or 'm', or by the word "meters" or "Meters", in which
case meters is assumed, and is handled accordingly. */
- int x;
- char string[50], qthfile[255];
- struct site tempsite;
- FILE *fd=NULL;
+ int x;
+ char string[50], qthfile[255], *s=NULL;
+ struct site tempsite;
+ FILE *fd=NULL;
- for (x=0; filename[x]!='.' && filename[x]!=0 && x<250; x++)
- qthfile[x]=filename[x];
+ x=strlen(filename);
+ strncpy(qthfile, filename, 254);
+
+ if (qthfile[x-3]!='q' || qthfile[x-2]!='t' || qthfile[x-1]!='h')
+ {
+ if (x>249)
+ qthfile[249]=0;
- qthfile[x]='.';
- qthfile[x+1]='q';
- qthfile[x+2]='t';
- qthfile[x+3]='h';
- qthfile[x+4]=0;
+ strncat(qthfile,".qth\0",5);
+ }
tempsite.lat=91.0;
tempsite.lon=361.0;
tempsite.alt=0.0;
tempsite.name[0]=0;
+ tempsite.filename[0]=0;
fd=fopen(qthfile,"r");
if (fd!=NULL)
{
/* Site Name */
- fgets(string,49,fd);
+ s=fgets(string,49,fd);
/* Strip <CR> and/or <LF> from end of site name */
tempsite.name[x]=0;
/* Site Latitude */
- fgets(string,49,fd);
+ s=fgets(string,49,fd);
tempsite.lat=ReadBearing(string);
/* Site Longitude */
- fgets(string,49,fd);
+ s=fgets(string,49,fd);
tempsite.lon=ReadBearing(string);
+ if (tempsite.lon<0.0)
+ tempsite.lon+=360.0;
+
/* Antenna Height */
- fgets(string,49,fd);
+ s=fgets(string,49,fd);
fclose(fd);
/* Remove <CR> and/or <LF> from antenna height string */
must be converted to feet before exiting. */
for (x=0; string[x]!='M' && string[x]!='m' && string[x]!=0 && x<48; x++);
+
if (string[x]=='M' || string[x]=='m')
{
string[x]=0;
- sscanf(string,"%lf",&tempsite.alt);
+ sscanf(string,"%f",&tempsite.alt);
tempsite.alt*=3.28084;
}
else
{
string[x]=0;
- sscanf(string,"%lf",&tempsite.alt);
+ sscanf(string,"%f",&tempsite.alt);
}
+
+ for (x=0; x<254 && qthfile[x]!=0; x++)
+ tempsite.filename[x]=qthfile[x];
+
+ tempsite.filename[x]=0;
}
return tempsite;
}
-int LoadSDF_SDF(char *name)
+void LoadPAT(char *filename)
{
- /* This function reads uncompressed SPLAT Data Files (.sdf)
- containing digital elevation model data into memory.
- Elevation data, maximum and minimum elevations, and
- quadrangle limits are stored in the first available
- dem[] structure. */
+ /* This function reads and processes antenna pattern (.az
+ and .el) files that correspond in name to previously
+ loaded SPLAT! .lrp files. */
+
+ int a, b, w, x, y, z, last_index, next_index, span;
+ char string[255], azfile[255], elfile[255], *pointer=NULL, *s=NULL;
+ float az, xx, elevation, amplitude, rotation, valid1, valid2,
+ delta, azimuth[361], azimuth_pattern[361], el_pattern[10001],
+ elevation_pattern[361][1001], slant_angle[361], tilt,
+ mechanical_tilt=0.0, tilt_azimuth, tilt_increment, sum;
+ FILE *fd=NULL;
+ unsigned char read_count[10001];
- int x, y, data, indx, minlat, minlon, maxlat, maxlon;
- char found, free_slot=0, line[20], sdf_file[255], path_plus_name[255];
- FILE *fd;
+ for (x=0; filename[x]!='.' && filename[x]!=0 && x<250; x++)
+ {
+ azfile[x]=filename[x];
+ elfile[x]=filename[x];
+ }
- for (x=0; name[x]!='.' && name[x]!=0 && x<250; x++)
- sdf_file[x]=name[x];
+ azfile[x]='.';
+ azfile[x+1]='a';
+ azfile[x+2]='z';
+ azfile[x+3]=0;
- sdf_file[x]=0;
+ elfile[x]='.';
+ elfile[x+1]='e';
+ elfile[x+2]='l';
+ elfile[x+3]=0;
- /* Parse filename for minimum latitude and longitude values */
+ rotation=0.0;
- sscanf(sdf_file,"%d:%d:%d:%d",&minlat,&maxlat,&minlon,&maxlon);
+ got_azimuth_pattern=0;
+ got_elevation_pattern=0;
- sdf_file[x]='.';
- sdf_file[x+1]='s';
- sdf_file[x+2]='d';
- sdf_file[x+3]='f';
- sdf_file[x+4]=0;
+ /* Load .az antenna pattern file */
- /* Is it already in memory? */
+ fd=fopen(azfile,"r");
- for (indx=0, found=0; indx<MAXSLOTS && found==0; indx++)
+ if (fd!=NULL)
{
- if (minlat==dem[indx].min_north && minlon==dem[indx].min_west && maxlat==dem[indx].max_north && maxlon==dem[indx].max_west)
- found=1;
- }
+ /* Clear azimuth pattern array */
- /* Is room available to load it? */
+ for (x=0; x<=360; x++)
+ {
+ azimuth[x]=0.0;
+ read_count[x]=0;
+ }
- if (found==0)
- {
- for (indx=0, free_slot=0; indx<MAXSLOTS && free_slot==0; indx++)
- if (dem[indx].max_north==-90)
- free_slot=1;
- }
- indx--;
+ /* Read azimuth pattern rotation
+ in degrees measured clockwise
+ from true North. */
- if (free_slot && found==0 && indx>=0 && indx<MAXSLOTS)
- {
- /* Search for SDF file in current working directory first */
+ s=fgets(string,254,fd);
+ pointer=strchr(string,';');
- strncpy(path_plus_name,sdf_file,255);
+ if (pointer!=NULL)
+ *pointer=0;
- fd=fopen(path_plus_name,"rb");
+ sscanf(string,"%f",&rotation);
- if (fd==NULL)
- {
- /* Next, try loading SDF file from path specified
- in $HOME/.splat_path file or by -d argument */
- strncpy(path_plus_name,sdf_path,255);
- strncat(path_plus_name,sdf_file,255);
+ /* Read azimuth (degrees) and corresponding
+ normalized field radiation pattern amplitude
+ (0.0 to 1.0) until EOF is reached. */
- fd=fopen(path_plus_name,"rb");
+ s=fgets(string,254,fd);
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ sscanf(string,"%f %f",&az, &litude);
+
+ do
+ {
+ x=(int)rintf(az);
+
+ if (x>=0 && x<=360 && fd!=NULL)
+ {
+ azimuth[x]+=amplitude;
+ read_count[x]++;
+ }
+
+ s=fgets(string,254,fd);
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ sscanf(string,"%f %f",&az, &litude);
+
+ } while (feof(fd)==0);
+
+ fclose(fd);
+
+
+ /* Handle 0=360 degree ambiguity */
+
+ if ((read_count[0]==0) && (read_count[360]!=0))
+ {
+ read_count[0]=read_count[360];
+ azimuth[0]=azimuth[360];
+ }
+
+ if ((read_count[0]!=0) && (read_count[360]==0))
+ {
+ read_count[360]=read_count[0];
+ azimuth[360]=azimuth[0];
+ }
+
+ /* Average pattern values in case more than
+ one was read for each degree of azimuth. */
+
+ for (x=0; x<=360; x++)
+ {
+ if (read_count[x]>1)
+ azimuth[x]/=(float)read_count[x];
+ }
+
+ /* Interpolate missing azimuths
+ to completely fill the array */
+
+ last_index=-1;
+ next_index=-1;
+
+ for (x=0; x<=360; x++)
+ {
+ if (read_count[x]!=0)
+ {
+ if (last_index==-1)
+ last_index=x;
+ else
+ next_index=x;
+ }
+
+ if (last_index!=-1 && next_index!=-1)
+ {
+ valid1=azimuth[last_index];
+ valid2=azimuth[next_index];
+
+ span=next_index-last_index;
+ delta=(valid2-valid1)/(float)span;
+
+ for (y=last_index+1; y<next_index; y++)
+ azimuth[y]=azimuth[y-1]+delta;
+
+ last_index=y;
+ next_index=-1;
+ }
+ }
+
+ /* Perform azimuth pattern rotation
+ and load azimuth_pattern[361] with
+ azimuth pattern data in its final form. */
+
+ for (x=0; x<360; x++)
+ {
+ y=x+(int)rintf(rotation);
+
+ if (y>=360)
+ y-=360;
+
+ azimuth_pattern[y]=azimuth[x];
+ }
+
+ azimuth_pattern[360]=azimuth_pattern[0];
+
+ got_azimuth_pattern=255;
+ }
+
+ /* Read and process .el file */
+
+ fd=fopen(elfile,"r");
+
+ if (fd!=NULL)
+ {
+ for (x=0; x<=10000; x++)
+ {
+ el_pattern[x]=0.0;
+ read_count[x]=0;
+ }
+
+ /* Read mechanical tilt (degrees) and
+ tilt azimuth in degrees measured
+ clockwise from true North. */
+
+ s=fgets(string,254,fd);
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ sscanf(string,"%f %f",&mechanical_tilt, &tilt_azimuth);
+
+ /* Read elevation (degrees) and corresponding
+ normalized field radiation pattern amplitude
+ (0.0 to 1.0) until EOF is reached. */
+
+ s=fgets(string,254,fd);
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ sscanf(string,"%f %f", &elevation, &litude);
+
+ while (feof(fd)==0)
+ {
+ /* Read in normalized radiated field values
+ for every 0.01 degrees of elevation between
+ -10.0 and +90.0 degrees */
+
+ x=(int)rintf(100.0*(elevation+10.0));
+
+ if (x>=0 && x<=10000)
+ {
+ el_pattern[x]+=amplitude;
+ read_count[x]++;
+ }
+
+ s=fgets(string,254,fd);
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ sscanf(string,"%f %f", &elevation, &litude);
+ }
+
+ fclose(fd);
+
+ /* Average the field values in case more than
+ one was read for each 0.01 degrees of elevation. */
+
+ for (x=0; x<=10000; x++)
+ {
+ if (read_count[x]>1)
+ el_pattern[x]/=(float)read_count[x];
+ }
+
+ /* Interpolate between missing elevations (if
+ any) to completely fill the array and provide
+ radiated field values for every 0.01 degrees of
+ elevation. */
+
+ last_index=-1;
+ next_index=-1;
+
+ for (x=0; x<=10000; x++)
+ {
+ if (read_count[x]!=0)
+ {
+ if (last_index==-1)
+ last_index=x;
+ else
+ next_index=x;
+ }
+
+ if (last_index!=-1 && next_index!=-1)
+ {
+ valid1=el_pattern[last_index];
+ valid2=el_pattern[next_index];
+
+ span=next_index-last_index;
+ delta=(valid2-valid1)/(float)span;
+
+ for (y=last_index+1; y<next_index; y++)
+ el_pattern[y]=el_pattern[y-1]+delta;
+
+ last_index=y;
+ next_index=-1;
+ }
+ }
+
+ /* Fill slant_angle[] array with offset angles based
+ on the antenna's mechanical beam tilt (if any)
+ and tilt direction (azimuth). */
+
+ if (mechanical_tilt==0.0)
+ {
+ for (x=0; x<=360; x++)
+ slant_angle[x]=0.0;
+ }
+
+ else
+ {
+ tilt_increment=mechanical_tilt/90.0;
+
+ for (x=0; x<=360; x++)
+ {
+ xx=(float)x;
+ y=(int)rintf(tilt_azimuth+xx);
+
+ while (y>=360)
+ y-=360;
+
+ while (y<0)
+ y+=360;
+
+ if (x<=180)
+ slant_angle[y]=-(tilt_increment*(90.0-xx));
+
+ if (x>180)
+ slant_angle[y]=-(tilt_increment*(xx-270.0));
+ }
+ }
+
+ slant_angle[360]=slant_angle[0]; /* 360 degree wrap-around */
+
+ for (w=0; w<=360; w++)
+ {
+ tilt=slant_angle[w];
+
+ /** Convert tilt angle to
+ an array index offset **/
+
+ y=(int)rintf(100.0*tilt);
+
+ /* Copy shifted el_pattern[10001] field
+ values into elevation_pattern[361][1001]
+ at the corresponding azimuth, downsampling
+ (averaging) along the way in chunks of 10. */
+
+ for (x=y, z=0; z<=1000; x+=10, z++)
+ {
+ for (sum=0.0, a=0; a<10; a++)
+ {
+ b=a+x;
+
+ if (b>=0 && b<=10000)
+ sum+=el_pattern[b];
+ if (b<0)
+ sum+=el_pattern[0];
+ if (b>10000)
+ sum+=el_pattern[10000];
+ }
+
+ elevation_pattern[w][z]=sum/10.0;
+ }
+ }
+
+ got_elevation_pattern=255;
+ }
+
+ for (x=0; x<=360; x++)
+ {
+ for (y=0; y<=1000; y++)
+ {
+ if (got_elevation_pattern)
+ elevation=elevation_pattern[x][y];
+ else
+ elevation=1.0;
+
+ if (got_azimuth_pattern)
+ az=azimuth_pattern[x];
+ else
+ az=1.0;
+
+ LR.antenna_pattern[x][y]=az*elevation;
+ }
+ }
+}
+
+int LoadSDF_SDF(char *name)
+{
+ /* This function reads uncompressed SPLAT Data Files (.sdf)
+ containing digital elevation model data into memory.
+ Elevation data, maximum and minimum elevations, and
+ quadrangle limits are stored in the first available
+ dem[] structure. */
+
+ int x, y, data, indx, minlat, minlon, maxlat, maxlon;
+ char found, free_page=0, line[20], sdf_file[255],
+ path_plus_name[255], *s=NULL;
+ FILE *fd;
+
+ for (x=0; name[x]!='.' && name[x]!=0 && x<250; x++)
+ sdf_file[x]=name[x];
+
+ sdf_file[x]=0;
+
+ /* Parse filename for minimum latitude and longitude values */
+
+ sscanf(sdf_file,"%d:%d:%d:%d",&minlat,&maxlat,&minlon,&maxlon);
+
+ sdf_file[x]='.';
+ sdf_file[x+1]='s';
+ sdf_file[x+2]='d';
+ sdf_file[x+3]='f';
+ sdf_file[x+4]=0;
+
+ /* Is it already in memory? */
+
+ for (indx=0, found=0; indx<MAXPAGES && found==0; indx++)
+ {
+ if (minlat==dem[indx].min_north && minlon==dem[indx].min_west && maxlat==dem[indx].max_north && maxlon==dem[indx].max_west)
+ found=1;
+ }
+
+ /* Is room available to load it? */
+
+ if (found==0)
+ {
+ for (indx=0, free_page=0; indx<MAXPAGES && free_page==0; indx++)
+ if (dem[indx].max_north==-90)
+ free_page=1;
+ }
+
+ indx--;
+
+ if (free_page && found==0 && indx>=0 && indx<MAXPAGES)
+ {
+ /* Search for SDF file in current working directory first */
+
+ strncpy(path_plus_name,sdf_file,255);
+
+ fd=fopen(path_plus_name,"rb");
+
+ if (fd==NULL)
+ {
+ /* Next, try loading SDF file from path specified
+ in $HOME/.splat_path file or by -d argument */
+
+ strncpy(path_plus_name,sdf_path,255);
+ strncat(path_plus_name,sdf_file,255);
+
+ fd=fopen(path_plus_name,"rb");
}
if (fd!=NULL)
{
- fprintf(stdout,"Loading \"%s\" into slot %d...",path_plus_name,indx+1);
+ fprintf(stdout,"Loading \"%s\" into page %d...",path_plus_name,indx+1);
fflush(stdout);
- fgets(line,19,fd);
+ s=fgets(line,19,fd);
sscanf(line,"%d",&dem[indx].max_west);
- fgets(line,19,fd);
+ s=fgets(line,19,fd);
sscanf(line,"%d",&dem[indx].min_north);
- fgets(line,19,fd);
+ s=fgets(line,19,fd);
sscanf(line,"%d",&dem[indx].min_west);
- fgets(line,19,fd);
+ s=fgets(line,19,fd);
sscanf(line,"%d",&dem[indx].max_north);
- for (x=0; x<1200; x++)
- for (y=0; y<1200; y++)
+ for (x=0; x<ippd; x++)
+ for (y=0; y<ippd; y++)
{
- fgets(line,19,fd);
- sscanf(line,"%d",&data);
+ s=fgets(line,19,fd);
+ data=atoi(line);
dem[indx].data[x][y]=data;
+ dem[indx].signal[x][y]=0;
+ dem[indx].mask[x][y]=0;
if (data>dem[indx].max_el)
dem[indx].max_el=data;
max_north=dem[indx].max_north;
else if (dem[indx].max_north>max_north)
- max_north=dem[indx].max_north;
+ max_north=dem[indx].max_north;
if (min_north==90)
min_north=dem[indx].min_north;
else if (dem[indx].min_north<min_north)
- min_north=dem[indx].min_north;
+ min_north=dem[indx].min_north;
if (max_west==-1)
max_west=dem[indx].max_west;
else
{
- if (abs(dem[indx].min_west-min_west)<180)
+ if (fabs(dem[indx].min_west-min_west)<180.0)
{
if (dem[indx].min_west<min_west)
min_west=dem[indx].min_west;
fprintf(stdout," Done!\n");
fflush(stdout);
+
return 1;
}
maximum and minimum elevations, and quadrangle limits are
stored in the first available dem[] structure. */
- int x, y, data, indx, minlat, minlon, maxlat, maxlon;
- char found, free_slot=0, sdf_file[255], path_plus_name[255];
- FILE *fd;
- BZFILE *bzfd;
+ int x, y, data, indx, minlat, minlon, maxlat, maxlon;
+ char found, free_page=0, sdf_file[255], path_plus_name[255], *string;
+ FILE *fd;
+ BZFILE *bzfd;
for (x=0; name[x]!='.' && name[x]!=0 && x<247; x++)
sdf_file[x]=name[x];
/* Is it already in memory? */
- for (indx=0, found=0; indx<MAXSLOTS && found==0; indx++)
+ for (indx=0, found=0; indx<MAXPAGES && found==0; indx++)
{
if (minlat==dem[indx].min_north && minlon==dem[indx].min_west && maxlat==dem[indx].max_north && maxlon==dem[indx].max_west)
found=1;
if (found==0)
{
- for (indx=0, free_slot=0; indx<MAXSLOTS && free_slot==0; indx++)
+ for (indx=0, free_page=0; indx<MAXPAGES && free_page==0; indx++)
if (dem[indx].max_north==-90)
- free_slot=1;
+ free_page=1;
}
indx--;
- if (free_slot && found==0 && indx>=0 && indx<MAXSLOTS)
+ if (free_page && found==0 && indx>=0 && indx<MAXPAGES)
{
/* Search for SDF file in current working directory first */
if (fd!=NULL && bzerror==BZ_OK)
{
- fprintf(stdout,"Loading \"%s\" into slot %d...",path_plus_name,indx+1);
+ fprintf(stdout,"Loading \"%s\" into page %d...",path_plus_name,indx+1);
fflush(stdout);
sscanf(BZfgets(bzfd,255),"%d",&dem[indx].max_west);
sscanf(BZfgets(bzfd,255),"%d",&dem[indx].min_west);
sscanf(BZfgets(bzfd,255),"%d",&dem[indx].max_north);
- for (x=0; x<1200; x++)
- for (y=0; y<1200; y++)
+ for (x=0; x<ippd; x++)
+ for (y=0; y<ippd; y++)
{
- sscanf(BZfgets(bzfd,20),"%d",&data);
+ string=BZfgets(bzfd,20);
+ data=atoi(string);
dem[indx].data[x][y]=data;
+ dem[indx].signal[x][y]=0;
+ dem[indx].mask[x][y]=0;
if (data>dem[indx].max_el)
dem[indx].max_el=data;
max_north=dem[indx].max_north;
else if (dem[indx].max_north>max_north)
- max_north=dem[indx].max_north;
+ max_north=dem[indx].max_north;
if (min_north==90)
min_north=dem[indx].min_north;
else if (dem[indx].min_north<min_north)
- min_north=dem[indx].min_north;
+ min_north=dem[indx].min_north;
if (max_west==-1)
max_west=dem[indx].max_west;
fprintf(stdout," Done!\n");
fflush(stdout);
+
return 1;
}
+
else
return -1;
}
+
else
return 0;
}
exists for the region requested, and that the region
requested must be entirely over water. */
- int x, y, indx, minlat, minlon, maxlat, maxlon;
- char found, free_slot=0;
- int return_value=-1;
+ int x, y, indx, minlat, minlon, maxlat, maxlon;
+ char found, free_page=0;
+ int return_value=-1;
/* Try to load an uncompressed SDF first. */
/* Is it already in memory? */
- for (indx=0, found=0; indx<MAXSLOTS && found==0; indx++)
+ for (indx=0, found=0; indx<MAXPAGES && found==0; indx++)
{
if (minlat==dem[indx].min_north && minlon==dem[indx].min_west && maxlat==dem[indx].max_north && maxlon==dem[indx].max_west)
found=1;
if (found==0)
{
- for (indx=0, free_slot=0; indx<MAXSLOTS && free_slot==0; indx++)
+ for (indx=0, free_page=0; indx<MAXPAGES && free_page==0; indx++)
if (dem[indx].max_north==-90)
- free_slot=1;
+ free_page=1;
}
indx--;
- if (free_slot && found==0 && indx>=0 && indx<MAXSLOTS)
+ if (free_page && found==0 && indx>=0 && indx<MAXPAGES)
{
- fprintf(stdout,"Region \"%s\" assumed as sea-level into slot %d...",name,indx+1);
+ fprintf(stdout,"Region \"%s\" assumed as sea-level into page %d...",name,indx+1);
fflush(stdout);
dem[indx].max_west=maxlon;
/* Fill DEM with sea-level topography */
- for (x=0; x<1200; x++)
- for (y=0; y<1200; y++)
+ for (x=0; x<ippd; x++)
+ for (y=0; y<ippd; y++)
{
dem[indx].data[x][y]=0;
+ dem[indx].signal[x][y]=0;
+ dem[indx].mask[x][y]=0;
if (dem[indx].min_el>0)
dem[indx].min_el=0;
max_north=dem[indx].max_north;
else if (dem[indx].max_north>max_north)
- max_north=dem[indx].max_north;
+ max_north=dem[indx].max_north;
if (min_north==90)
min_north=dem[indx].min_north;
else if (dem[indx].min_north<min_north)
- min_north=dem[indx].min_north;
+ min_north=dem[indx].min_north;
if (max_west==-1)
max_west=dem[indx].max_west;
the locations and names of the cities and site locations
read on topographic maps generated by SPLAT! */
- int x, y, z;
- char input[80], str[3][80];
- struct site city_site;
- FILE *fd=NULL;
+ int x, y, z;
+ char input[80], str[3][80], *s=NULL;
+ struct site city_site;
+ FILE *fd=NULL;
fd=fopen(filename,"r");
if (fd!=NULL)
{
- fgets(input,78,fd);
+ s=fgets(input,78,fd);
- fprintf(stdout,"Reading \"%s\"... ",filename);
+ fprintf(stdout,"\nReading \"%s\"... ",filename);
fflush(stdout);
while (fd!=NULL && feof(fd)==0)
city_site.lon=ReadBearing(str[2]);
city_site.alt=0.0;
+ if (city_site.lon<0.0)
+ city_site.lon+=360.0;
+
PlaceMarker(city_site);
- fgets(input,78,fd);
+ s=fgets(input,78,fd);
}
fclose(fd);
- fprintf(stdout,"Done!\n");
+ fprintf(stdout,"Done!");
fflush(stdout);
}
+
else
- fprintf(stderr,"*** ERROR: \"%s\": not found!\n",filename);
+ fprintf(stderr,"\n*** ERROR: \"%s\": not found!",filename);
}
-void LoadBoundaries(char *filename)
+void LoadUDT(char *filename)
{
- /* This function reads Cartographic Boundary Files available from
- the U.S. Census Bureau, and plots the data contained in those
- files on the PPM Map generated by SPLAT!. Such files contain
- the coordinates that describe the boundaries of cities,
- counties, and states. */
+ /* This function reads a file containing User-Defined Terrain
+ features for their addition to the digital elevation model
+ data used by SPLAT!. Elevations in the UDT file are evaluated
+ and then copied into a temporary file under /tmp. Then the
+ contents of the temp file are scanned, and if found to be unique,
+ are added to the ground elevations described by the digital
+ elevation data already loaded into memory. */
- int x;
- double lat0, lon0, lat1, lon1;
- char string[80];
- struct site source, destination;
- FILE *fd=NULL;
+ int i, x, y, z, ypix, xpix, tempxpix, tempypix, fd=0, n=0;
+ char input[80], str[3][80], tempname[15], *pointer=NULL, *s=NULL;
+ double latitude, longitude, height, tempheight;
+ FILE *fd1=NULL, *fd2=NULL;
- fd=fopen(filename,"r");
+ strcpy(tempname,"/tmp/XXXXXX\0");
- if (fd!=NULL)
+ fd1=fopen(filename,"r");
+
+ if (fd1!=NULL)
{
- fgets(string,78,fd);
+ fd=mkstemp(tempname);
+ fd2=fopen(tempname,"w");
- fprintf(stdout,"Reading \"%s\"... ",filename);
+ s=fgets(input,78,fd1);
+
+ pointer=strchr(input,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ fprintf(stdout,"\nReading \"%s\"... ",filename);
fflush(stdout);
- do
+ while (feof(fd1)==0)
{
- fgets(string,78,fd);
- sscanf(string,"%lf %lf", &lon0, &lat0);
- fgets(string,78,fd);
+ /* Parse line for latitude, longitude, height */
- do
+ for (x=0, y=0, z=0; x<78 && input[x]!=0 && z<3; x++)
{
- sscanf(string,"%lf %lf", &lon1, &lat1);
+ if (input[x]!=',' && y<78)
+ {
+ str[z][y]=input[x];
+ y++;
+ }
- lon0=fabs(lon0);
- lon1=fabs(lon1);
+ else
+ {
+ str[z][y]=0;
+ z++;
+ y=0;
+ }
+ }
- source.lat=lat0;
- source.lon=lon0;
- destination.lat=lat1;
- destination.lon=lon1;
+ latitude=ReadBearing(str[0]);
+ longitude=ReadBearing(str[1]);
- ReadPath(source,destination);
+ if (longitude<0.0)
+ longitude+=360.0;
- for (x=0; x<path.length; x++)
- OrMask(path.lat[x],path.lon[x],4);
+ /* Remove <CR> and/or <LF> from antenna height string */
- lat0=lat1;
- lon0=lon1;
+ for (i=0; str[2][i]!=13 && str[2][i]!=10 && str[2][i]!=0; i++);
- fgets(string,78,fd);
+ str[2][i]=0;
- } while (strncmp(string,"END",3)!=0 && feof(fd)==0);
+ /* The terrain feature may be expressed in either
+ feet or meters. If the letter 'M' or 'm' is
+ discovered in the string, then this is an
+ indication that the value given is expressed
+ in meters. Otherwise the height is interpreted
+ as being expressed in feet. */
- fgets(string,78,fd);
+ for (i=0; str[2][i]!='M' && str[2][i]!='m' && str[2][i]!=0 && i<48; i++);
- } while (strncmp(string,"END",3)!=0 && feof(fd)==0);
+ if (str[2][i]=='M' || str[2][i]=='m')
+ {
+ str[2][i]=0;
+ height=rint(atof(str[2]));
+ }
- fclose(fd);
+ else
+ {
+ str[2][i]=0;
+ height=rint(METERS_PER_FOOT*atof(str[2]));
+ }
- fprintf(stdout,"Done!\n");
- fflush(stdout);
- }
+ if (height>0.0)
+ fprintf(fd2,"%d, %d, %f\n",(int)rint(latitude/dpp), (int)rint(longitude/dpp), height);
- else
- fprintf(stderr,"*** ERROR: \"%s\": not found!\n",filename);
-}
+ s=fgets(input,78,fd1);
-void ReadLRParm(char *txsite_filename)
-{
+ pointer=strchr(input,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+ }
+
+ fclose(fd1);
+ fclose(fd2);
+ close(fd);
+
+ fprintf(stdout,"Done!");
+ fflush(stdout);
+
+ fd1=fopen(tempname,"r");
+ fd2=fopen(tempname,"r");
+
+ y=0;
+
+ n=fscanf(fd1,"%d, %d, %lf", &xpix, &ypix, &height);
+
+ do
+ {
+ x=0;
+ z=0;
+
+ n=fscanf(fd2,"%d, %d, %lf", &tempxpix, &tempypix, &tempheight);
+
+ do
+ {
+ if (x>y && xpix==tempxpix && ypix==tempypix)
+ {
+ z=1; /* Dupe! */
+
+ if (tempheight>height)
+ height=tempheight;
+ }
+
+ else
+ {
+ n=fscanf(fd2,"%d, %d, %lf", &tempxpix, &tempypix, &tempheight);
+ x++;
+ }
+
+ } while (feof(fd2)==0 && z==0);
+
+ if (z==0) /* No duplicate found */
+ AddElevation(xpix*dpp, ypix*dpp, height);
+
+ n=fscanf(fd1,"%d, %d, %lf", &xpix, &ypix, &height);
+ y++;
+
+ rewind(fd2);
+
+ } while (feof(fd1)==0);
+
+ fclose(fd1);
+ fclose(fd2);
+ unlink(tempname);
+ }
+
+ else
+ fprintf(stderr,"\n*** ERROR: \"%s\": not found!",filename);
+
+ fprintf(stdout,"\n");
+}
+
+void LoadBoundaries(char *filename)
+{
+ /* This function reads Cartographic Boundary Files available from
+ the U.S. Census Bureau, and plots the data contained in those
+ files on the PPM Map generated by SPLAT!. Such files contain
+ the coordinates that describe the boundaries of cities,
+ counties, and states. */
+
+ int x;
+ double lat0, lon0, lat1, lon1;
+ char string[80], *s=NULL;
+ struct site source, destination;
+ FILE *fd=NULL;
+
+ fd=fopen(filename,"r");
+
+ if (fd!=NULL)
+ {
+ s=fgets(string,78,fd);
+
+ fprintf(stdout,"\nReading \"%s\"... ",filename);
+ fflush(stdout);
+
+ do
+ {
+ s=fgets(string,78,fd);
+ sscanf(string,"%lf %lf", &lon0, &lat0);
+ s=fgets(string,78,fd);
+
+ do
+ {
+ sscanf(string,"%lf %lf", &lon1, &lat1);
+
+ source.lat=lat0;
+ source.lon=(lon0>0.0 ? 360.0-lon0 : -lon0);
+ destination.lat=lat1;
+ destination.lon=(lon1>0.0 ? 360.0-lon1 : -lon1);
+
+ ReadPath(source,destination);
+
+ for (x=0; x<path.length; x++)
+ OrMask(path.lat[x],path.lon[x],4);
+
+ lat0=lat1;
+ lon0=lon1;
+
+ s=fgets(string,78,fd);
+
+ } while (strncmp(string,"END",3)!=0 && feof(fd)==0);
+
+ s=fgets(string,78,fd);
+
+ } while (strncmp(string,"END",3)!=0 && feof(fd)==0);
+
+ fclose(fd);
+
+ fprintf(stdout,"Done!");
+ fflush(stdout);
+ }
+
+ else
+ fprintf(stderr,"\n*** ERROR: \"%s\": not found!",filename);
+}
+
+char ReadLRParm(struct site txsite, char forced_read)
+{
/* This function reads Longley-Rice parameter data for the
transmitter site. The file name is the same as the txsite,
except the filename extension is .lrp. If the needed file
is not found, then the file "splat.lrp" is read from the
- current working directory. Failure to load this file will
- result in the default parameters hard coded into this
- being used and written to "splat.lrp". */
-
- double din;
- char filename[255], lookup[256], string[80];
- int iin, ok=0, x;
- FILE *fd=NULL, *outfile=NULL;
-
- /* Default parameters in case things go bad */
-
- LR.eps_dielect=15.0;
- LR.sgm_conductivity=0.005;
- LR.eno_ns_surfref=301.0;
- LR.frq_mhz=300.0;
- LR.radio_climate=5;
+ current working directory. Failure to load this file under
+ a forced_read condition will result in the default parameters
+ hard coded into this function to be used and written to
+ "splat.lrp". */
+
+ double din;
+ char filename[255], string[80], *pointer=NULL, *s=NULL, return_value=0;
+ int iin, ok=0, x;
+ FILE *fd=NULL, *outfile=NULL;
+
+ /* Default parameters */
+
+ LR.eps_dielect=0.0;
+ LR.sgm_conductivity=0.0;
+ LR.eno_ns_surfref=0.0;
+ LR.frq_mhz=0.0;
+ LR.radio_climate=0;
LR.pol=0;
- LR.conf=0.50;
- LR.rel=0.50;
-
- /* Modify txsite filename to one with a .lrp extension. */
+ LR.conf=0.0;
+ LR.rel=0.0;
+ LR.erp=0.0;
- strncpy(filename,txsite_filename,255);
+ /* Generate .lrp filename from txsite filename. */
- for (x=0; filename[x]!='.' && filename[x]!=0 && filename[x]!='\n' && x<249; x++);
+ for (x=0; txsite.filename[x]!='.' && txsite.filename[x]!=0 && x<250; x++)
+ filename[x]=txsite.filename[x];
filename[x]='.';
filename[x+1]='l';
filename[x+3]='p';
filename[x+4]=0;
- /* Small lookup table to parse file, pass
- numeric data, and ignore comments. */
-
- for (x=0; x<=255; x++)
- lookup[x]=0;
-
- /* Valid characters */
-
- for (x=48; x<=57; x++)
- lookup[x]=x;
-
- lookup[32]=32;
- lookup[46]='.';
-
fd=fopen(filename,"r");
if (fd==NULL)
if (fd!=NULL)
{
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%lf", &din);
{
LR.eps_dielect=din;
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%lf", &din);
}
{
LR.sgm_conductivity=din;
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%lf", &din);
}
{
LR.eno_ns_surfref=din;
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%lf", &din);
}
{
LR.frq_mhz=din;
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%d", &iin);
}
{
LR.radio_climate=iin;
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%d", &iin);
}
{
LR.pol=iin;
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%lf", &din);
}
{
LR.conf=din;
- fgets(string,80,fd);
+ s=fgets(string,80,fd);
- for (x=0; lookup[(int)string[x]] && x<20; x++)
- string[x]=lookup[(int)string[x]];
+ pointer=strchr(string,';');
- string[x]=0;
+ if (pointer!=NULL)
+ *pointer=0;
ok=sscanf(string,"%lf", &din);
}
if (ok)
+ {
LR.rel=din;
+ din=0.0;
+ return_value=1;
+
+ if (fgets(string,80,fd)!=NULL)
+ {
+ pointer=strchr(string,':');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ if (sscanf(string,"%lf", &din))
+ LR.erp=din;
+
+ /* ERP in SPLAT! is referenced to 1 Watt
+ into a dipole (0 dBd). If ERP is
+ expressed in dBm (referenced to a
+ 0 dBi radiator), convert dBm in EIRP
+ to ERP. */
+
+ if ((strstr(string, "dBm")!=NULL) || (strstr(string,"dbm")!=NULL))
+ LR.erp=(pow(10.0,(LR.erp-32.14)/10.0));
+ }
+ }
fclose(fd);
+
+ if (forced_erp!=-1.0)
+ LR.erp=forced_erp;
+
+ if (forced_freq>=20.0 && forced_freq<=20000.0)
+ LR.frq_mhz=forced_freq;
+
+ if (ok)
+ LoadPAT(filename);
}
- if (fd==NULL)
+ if (fd==NULL && forced_read)
{
- /* Create a "splat.lrp" file since one
- could not be successfully loaded. */
+ /* Assign some default parameters
+ for use in this run. */
+
+ LR.eps_dielect=15.0;
+ LR.sgm_conductivity=0.005;
+ LR.eno_ns_surfref=301.0;
+ LR.frq_mhz=300.0;
+ LR.radio_climate=5;
+ LR.pol=0;
+ LR.conf=0.50;
+ LR.rel=0.50;
+ LR.erp=0.0;
+
+ /* Write them to a "splat.lrp" file. */
outfile=fopen("splat.lrp","w");
fprintf(outfile,"%.3f\t; Earth Dielectric Constant (Relative permittivity)\n",LR.eps_dielect);
-
fprintf(outfile,"%.3f\t; Earth Conductivity (Siemens per meter)\n", LR.sgm_conductivity);
-
fprintf(outfile,"%.3f\t; Atmospheric Bending Constant (N-Units)\n",LR.eno_ns_surfref);
-
fprintf(outfile,"%.3f\t; Frequency in MHz (20 MHz to 20 GHz)\n", LR.frq_mhz);
-
fprintf(outfile,"%d\t; Radio Climate\n",LR.radio_climate);
-
fprintf(outfile,"%d\t; Polarization (0 = Horizontal, 1 = Vertical)\n", LR.pol);
-
fprintf(outfile,"%.2f\t; Fraction of situations\n",LR.conf);
-
- fprintf(outfile, "%.2f\t; Fraction of time\n",LR.rel);
-
+ fprintf(outfile,"%.2f\t; Fraction of time\n",LR.rel);
+ fprintf(outfile,"%.2f\t; Transmitter Effective Radiated Power in Watts or dBm (optional)\n",LR.erp);
fprintf(outfile,"\nPlease consult SPLAT! documentation for the meaning and use of this data.\n");
fclose(outfile);
- fprintf(stderr,"\n%c*** There were problems reading your \"%s\" file! ***\nA \"splat.lrp\" file was written to your directory with default data.\n",7,filename);
- }
-
- if (fd==NULL || ok==0)
- fprintf(stderr,"Longley-Rice default parameters have been assumed for this analysis.\n");
-}
-
-struct site los(struct site source, struct site destination)
-{
- /* This function determines whether a line-of-sight path
- unobstructed by terrain exists between source (transmitter)
- and destination (receiver) based on the geographical
- locations of the two sites, their respective antenna
- heights above ground, and the terrain between them.
- A site structure is returned upon completion. If the
- first character of site.name is ' ', then a clear path
- exists between source and destination. If the first
- character is '*', then an obstruction exists, and the
- site.lat and site.lon elements of the structure provide
- the geographical location of the obstruction. */
-
- int x;
- char block;
- struct site test, blockage;
- register double distance, tx_alt, rx_alt,
- cos_xmtr_angle, cos_test_angle, test_alt;
-
- ReadPath(source,destination);
+ return_value=1;
- distance=5280.0*Distance(source,destination);
- tx_alt=earthradius+source.alt+GetElevation(source);
- rx_alt=earthradius+destination.alt+GetElevation(destination);
-
- /* Elevation angle of the xmtr (source) as seen by the rcvr */
-
- cos_xmtr_angle=((rx_alt*rx_alt)+(distance*distance)-(tx_alt*tx_alt))/(2.0*rx_alt*distance);
-
- /* Determine the elevation angle of each discrete location
- along the path between the receiver and transmitter.
+ fprintf(stderr,"\n\n%c*** There were problems reading your \"%s\" file! ***\nA \"splat.lrp\" file was written to your directory with default data.\n",7,filename);
+ }
- Since obstructions are more likely due to terrain effects
- closest to the receiver rather than farther away, we start
- looking for potential obstructions from the receiver's
- location, and work our way towards the transmitter.
- This loop is broken when the first obstruction is
- detected. If we can travel all the way to the transmitter
- without detecting an obstruction, then we have a clear
- unobstructed path between transmitter and receiver. */
+ else if (forced_read==0)
+ return_value=0;
- for (x=path.length-1, block=0; x>0 && block==0; x--)
+ if (forced_read && (fd==NULL || ok==0))
{
- /* Build a structure for each test
- point along the path to be surveyed. */
-
- test.lat=path.lat[x];
- test.lon=path.lon[x];
-
- /* Measure the distance between the
- test point and the receiver locations */
-
- distance=5280.0*Distance(test,destination);
- test_alt=earthradius+path.elevation[x];
+ LR.eps_dielect=15.0;
+ LR.sgm_conductivity=0.005;
+ LR.eno_ns_surfref=301.0;
+ LR.frq_mhz=300.0;
+ LR.radio_climate=5;
+ LR.pol=0;
+ LR.conf=0.50;
+ LR.rel=0.50;
+ LR.erp=0.0;
- /* Determine the cosine of the elevation of the test
- point as seen from the location of the receiver */
-
- cos_test_angle=((rx_alt*rx_alt)+(distance*distance)-(test_alt*test_alt))/(2.0*rx_alt*distance);
-
- /* If the elevation angle to the test point (as seen from
- the receiver) is greater than the elevation angle to the
- transmitter (as seen by the receiver), then we have a
- path obstructed by terrain. Note: Since we're comparing
- the cosines of these angles rather than the angles
- themselves (eliminating the call to acos() saves
- considerable time), the following "if" statement is
- reversed from what it would normally be if the angles
- were compared. */
-
- if (cos_xmtr_angle>cos_test_angle)
- {
- block=1;
- blockage.lat=path.lat[x];
- blockage.lon=path.lon[x];
- blockage.alt=path.elevation[x];
- blockage.name[0]='*';
- }
- }
+ fprintf(stderr,"Longley-Rice default parameters have been assumed for this analysis.\n");
- if (block==0)
- {
- blockage.lat=0.0;
- blockage.lon=0.0;
- blockage.alt=0.0;
- blockage.name[0]=' ';
+ return_value=1;
}
- return blockage;
+ return (return_value);
}
void PlotPath(struct site source, struct site destination, char mask_value)
for (x=y, block=0; x>=0 && block==0; x--)
{
distance=5280.0*(path.distance[y]-path.distance[x]);
- test_alt=earthradius+path.elevation[x];
+ test_alt=earthradius+(path.elevation[x]==0.0?path.elevation[x]:path.elevation[x]+clutter);
cos_test_angle=((rx_alt*rx_alt)+(distance*distance)-(test_alt*test_alt))/(2.0*rx_alt*distance);
statement is reversed from what it would
be if the actual angles were compared. */
- if (cos_xmtr_angle>cos_test_angle)
+ if (cos_xmtr_angle>=cos_test_angle)
block=1;
}
}
}
-void PlotLRPath(struct site source, struct site destination)
+void PlotLRPath(struct site source, struct site destination, unsigned char mask_value, FILE *fd)
{
- /* This function plots the RF signal path loss
- between source and destination points based
- on the Longley-Rice propagation model. */
-
- char strmode[100];
- int x, y, errnum;
- double loss;
+ /* This function plots the RF path loss between source and
+ destination points based on the Longley-Rice propagation
+ model, taking into account antenna pattern data, if available. */
+
+ int x, y, ifs, ofs, errnum;
+ char block=0, strmode[100];
+ double loss, azimuth, pattern=0.0,
+ xmtr_alt, dest_alt, xmtr_alt2, dest_alt2,
+ cos_rcvr_angle, cos_test_angle=0.0, test_alt,
+ elevation=0.0, distance=0.0, four_thirds_earth,
+ field_strength=0.0, rxp, dBm;
+ struct site temp;
ReadPath(source,destination);
- elev_l[1]=0.04*METERS_PER_MILE;
- for (x=0; x<path.length; x++)
- elev_l[x+2]=path.elevation[x]*METERS_PER_FOOT;
-
- for (y=0; y<path.length; y++)
+ four_thirds_earth=FOUR_THIRDS*EARTHRADIUS;
+
+ /* Copy elevations plus clutter along path into the elev[] array. */
+
+ for (x=1; x<path.length-1; x++)
+ elev[x+2]=(path.elevation[x]==0.0?path.elevation[x]*METERS_PER_FOOT:(clutter+path.elevation[x])*METERS_PER_FOOT);
+
+ /* Copy ending points without clutter */
+
+ elev[2]=path.elevation[0]*METERS_PER_FOOT;
+ elev[path.length+1]=path.elevation[path.length-1]*METERS_PER_FOOT;
+
+ /* Since the only energy the Longley-Rice model considers
+ reaching the destination is based on what is scattered
+ or deflected from the first obstruction along the path,
+ we first need to find the location and elevation angle
+ of that first obstruction (if it exists). This is done
+ using a 4/3rds Earth radius to match the model used by
+ Longley-Rice. This information is required for properly
+ integrating the antenna's elevation pattern into the
+ calculation for overall path loss. */
+
+ for (y=2; (y<(path.length-1) && path.distance[y]<=max_range); y++)
{
- /* Test this point only if it has not already been tested. */
+ /* Process this point only if it
+ has not already been processed. */
- if (GetMask(path.lat[y],path.lon[y])==0 && 0.04*y<=max_range)
+ if ((GetMask(path.lat[y],path.lon[y])&248)!=(mask_value<<3))
{
- elev_l[0]=y+1;
+ distance=5280.0*path.distance[y];
+ xmtr_alt=four_thirds_earth+source.alt+path.elevation[0];
+ dest_alt=four_thirds_earth+destination.alt+path.elevation[y];
+ dest_alt2=dest_alt*dest_alt;
+ xmtr_alt2=xmtr_alt*xmtr_alt;
- point_to_point(elev_l,source.alt*METERS_PER_FOOT,
- destination.alt*METERS_PER_FOOT,
- LR.eps_dielect, LR.sgm_conductivity, LR.eno_ns_surfref,
- LR.frq_mhz, LR.radio_climate, LR.pol, LR.conf, LR.rel,
- loss, strmode, errnum);
+ /* Calculate the cosine of the elevation of
+ the receiver as seen by the transmitter. */
- /* Note: PASS BY REFERENCE ... loss and errnum are
- passed by reference, and are only used in this
- file by this function */
+ cos_rcvr_angle=((xmtr_alt2)+(distance*distance)-(dest_alt2))/(2.0*xmtr_alt*distance);
- if (loss>225.0)
- loss=225.0;
+ if (cos_rcvr_angle>1.0)
+ cos_rcvr_angle=1.0;
- if (loss<75.0)
- loss=75.0;
+ if (cos_rcvr_angle<-1.0)
+ cos_rcvr_angle=-1.0;
- loss-=75.0;
- loss/=10.0;
- loss+=1.0;
-
- OrMask(path.lat[y],path.lon[y],((unsigned char)(loss))<<3);
- }
+ if (got_elevation_pattern || fd!=NULL)
+ {
+ /* Determine the elevation angle to the first obstruction
+ along the path IF elevation pattern data is available
+ or an output (.ano) file has been designated. */
+
+ for (x=2, block=0; (x<y && block==0); x++)
+ {
+ distance=5280.0*path.distance[x];
+
+ test_alt=four_thirds_earth+(path.elevation[x]==0.0?path.elevation[x]:path.elevation[x]+clutter);
+
+ /* Calculate the cosine of the elevation
+ angle of the terrain (test point)
+ as seen by the transmitter. */
+
+ cos_test_angle=((xmtr_alt2)+(distance*distance)-(test_alt*test_alt))/(2.0*xmtr_alt*distance);
+
+ if (cos_test_angle>1.0)
+ cos_test_angle=1.0;
+
+ if (cos_test_angle<-1.0)
+ cos_test_angle=-1.0;
+
+ /* Compare these two angles to determine if
+ an obstruction exists. Since we're comparing
+ the cosines of these angles rather than
+ the angles themselves, the sense of the
+ following "if" statement is reversed from
+ what it would be if the angles themselves
+ were compared. */
+
+ if (cos_rcvr_angle>=cos_test_angle)
+ block=1;
+ }
+
+ if (block)
+ elevation=((acos(cos_test_angle))/DEG2RAD)-90.0;
+ else
+ elevation=((acos(cos_rcvr_angle))/DEG2RAD)-90.0;
+ }
+
+ /* Determine attenuation for each point along the
+ path using Longley-Rice's point_to_point mode
+ starting at y=2 (number_of_points = 1), the
+ shortest distance terrain can play a role in
+ path loss. */
+
+ elev[0]=y-1; /* (number of points - 1) */
+
+ /* Distance between elevation samples */
+
+ elev[1]=METERS_PER_MILE*(path.distance[y]-path.distance[y-1]);
+
+ point_to_point(elev,source.alt*METERS_PER_FOOT,
+ destination.alt*METERS_PER_FOOT, LR.eps_dielect,
+ LR.sgm_conductivity, LR.eno_ns_surfref, LR.frq_mhz,
+ LR.radio_climate, LR.pol, LR.conf, LR.rel, loss,
+ strmode, errnum);
+
+ temp.lat=path.lat[y];
+ temp.lon=path.lon[y];
+
+ azimuth=(Azimuth(source,temp));
+
+ if (fd!=NULL)
+ fprintf(fd,"%.7f, %.7f, %.3f, %.3f, ",path.lat[y], path.lon[y], azimuth, elevation);
+
+ /* If ERP==0, write path loss to alphanumeric
+ output file. Otherwise, write field strength
+ or received power level (below), as appropriate. */
+
+ if (fd!=NULL && LR.erp==0.0)
+ fprintf(fd,"%.2f",loss);
+
+ /* Integrate the antenna's radiation
+ pattern into the overall path loss. */
- else if (GetMask(path.lat[y],path.lon[y])==0 && 0.04*y>max_range)
- OrMask(path.lat[y],path.lon[y],1);
+ x=(int)rint(10.0*(10.0-elevation));
+
+ if (x>=0 && x<=1000)
+ {
+ azimuth=rint(azimuth);
+
+ pattern=(double)LR.antenna_pattern[(int)azimuth][x];
+
+ if (pattern!=0.0)
+ {
+ pattern=20.0*log10(pattern);
+ loss-=pattern;
+ }
+ }
+
+ if (LR.erp!=0.0)
+ {
+ if (dbm)
+ {
+ /* dBm is based on EIRP (ERP + 2.14) */
+
+ rxp=LR.erp/(pow(10.0,(loss-2.14)/10.0));
+
+ dBm=10.0*(log10(rxp*1000.0));
+
+ if (fd!=NULL)
+ fprintf(fd,"%.3f",dBm);
+
+ /* Scale roughly between 0 and 255 */
+
+ ifs=200+(int)rint(dBm);
+
+ if (ifs<0)
+ ifs=0;
+
+ if (ifs>255)
+ ifs=255;
+
+ ofs=GetSignal(path.lat[y],path.lon[y]);
+
+ if (ofs>ifs)
+ ifs=ofs;
+
+ PutSignal(path.lat[y],path.lon[y],(unsigned char)ifs);
+ }
+
+ else
+ {
+ field_strength=(139.4+(20.0*log10(LR.frq_mhz))-loss)+(10.0*log10(LR.erp/1000.0));
+
+ ifs=100+(int)rint(field_strength);
+
+ if (ifs<0)
+ ifs=0;
+
+ if (ifs>255)
+ ifs=255;
+
+ ofs=GetSignal(path.lat[y],path.lon[y]);
+
+ if (ofs>ifs)
+ ifs=ofs;
+
+ PutSignal(path.lat[y],path.lon[y],(unsigned char)ifs);
+
+ if (fd!=NULL)
+ fprintf(fd,"%.3f",field_strength);
+ }
+ }
+
+ else
+ {
+ if (loss>255)
+ ifs=255;
+ else
+ ifs=(int)rint(loss);
+
+ ofs=GetSignal(path.lat[y],path.lon[y]);
+
+ if (ofs<ifs && ofs!=0)
+ ifs=ofs;
+
+ PutSignal(path.lat[y],path.lon[y],(unsigned char)ifs);
+ }
+
+ if (fd!=NULL)
+ {
+ if (block)
+ fprintf(fd," *");
+
+ fprintf(fd,"\n");
+ }
+
+ /* Mark this point as having been analyzed */
+
+ PutMask(path.lat[y],path.lon[y],(GetMask(path.lat[y],path.lon[y])&7)+(mask_value<<3));
+ }
}
}
-void PlotCoverage(struct site source, double altitude)
+void PlotLOSMap(struct site source, double altitude)
{
/* This function performs a 360 degree sweep around the
transmitter site (source location), and plots the
of a topographic map when the WritePPM() function
is later invoked. */
- float lat, lon, one_pixel;
- static unsigned char mask_value;
- int z, count;
+ int y, z, count;
struct site edge;
unsigned char symbol[4], x;
-
- /* Initialize mask_value */
-
- if (mask_value!=8 && mask_value!=16 && mask_value!=32)
- mask_value=1;
-
- one_pixel=1.0/1200.0;
+ double lat, lon, minwest, maxnorth, th;
+ static unsigned char mask_value=1;
symbol[0]='.';
symbol[1]='o';
count=0;
- fprintf(stdout,"\nComputing line-of-sight coverage of %s with an RX antenna\nat %.2f feet AGL:\n\n 0%c to 25%c ",source.name,altitude,37,37);
+ fprintf(stdout,"\nComputing line-of-sight coverage of \"%s\" with an RX antenna\nat %.2f %s AGL",source.name,metric?altitude*METERS_PER_FOOT:altitude,metric?"meters":"feet");
+
+ if (clutter>0.0)
+ fprintf(stdout," and %.2f %s of ground clutter",metric?clutter*METERS_PER_FOOT:clutter,metric?"meters":"feet");
+
+ fprintf(stdout,"...\n\n 0%c to 25%c ",37,37);
fflush(stdout);
- /* 18.75=1200 pixels/degree divided by 64 loops
- per progress indicator symbol (.oOo) printed. */
+ /* th=pixels/degree divided by 64 loops per
+ progress indicator symbol (.oOo) printed. */
+
+ th=ppd/64.0;
+
+ z=(int)(th*ReduceAngle(max_west-min_west));
- z=(int)(18.75*ReduceAngle(max_west-min_west));
+ minwest=dpp+(double)min_west;
+ maxnorth=(double)max_north-dpp;
- for (lon=min_west, x=0; (LonDiff(lon,max_west)<=0.0); lon+=one_pixel)
+ for (lon=minwest, x=0, y=0; (LonDiff(lon,(double)max_west)<=0.0); y++, lon=minwest+(dpp*(double)y))
{
if (lon>=360.0)
lon-=360.0;
fprintf(stdout,"\n25%c to 50%c ",37,37);
fflush(stdout);
- z=(int)(18.75*(max_north-min_north));
+ z=(int)(th*(double)(max_north-min_north));
- for (lat=max_north, x=0; lat>=min_north; lat-=one_pixel)
+ for (lat=maxnorth, x=0, y=0; lat>=(double)min_north; y++, lat=maxnorth-(dpp*(double)y))
{
edge.lat=lat;
edge.lon=min_west;
fprintf(stdout,"\n50%c to 75%c ",37,37);
fflush(stdout);
- z=(int)(18.75*ReduceAngle(max_west-min_west));
+ z=(int)(th*ReduceAngle(max_west-min_west));
- for (lon=min_west, x=0; (LonDiff(lon,max_west)<=0.0); lon+=one_pixel)
+ for (lon=minwest, x=0, y=0; (LonDiff(lon,(double)max_west)<=0.0); y++, lon=minwest+(dpp*(double)y))
{
if (lon>=360.0)
lon-=360.0;
fprintf(stdout,"\n75%c to 100%c ",37,37);
fflush(stdout);
- z=(int)(18.75*(max_north-min_north));
+ z=(int)(th*(double)(max_north-min_north));
- for (lat=min_north, x=0; lat<=max_north; lat+=one_pixel)
+ for (lat=(double)min_north, x=0, y=0; lat<(double)max_north; y++, lat=(double)min_north+(dpp*(double)y))
{
edge.lat=lat;
edge.lon=max_west;
}
}
-void PlotLRMap(struct site source, double altitude)
+void PlotLRMap(struct site source, double altitude, char *plo_filename)
{
/* This function performs a 360 degree sweep around the
transmitter site (source location), and plots the
topographic map based on a receiver located at
the specified altitude (in feet AGL). Results
are stored in memory, and written out in the form
- of a topographic map when the WritePPMLR() function
- is later invoked. */
+ of a topographic map when the WritePPMLR() or
+ WritePPMSS() functions are later invoked. */
- int z, count;
+ int y, z, count;
struct site edge;
- float lat, lon, one_pixel;
- unsigned char symbol[4], x;
+ double lat, lon, minwest, maxnorth, th;
+ unsigned char x, symbol[4];
+ static unsigned char mask_value=1;
+ FILE *fd=NULL;
- one_pixel=1.0/1200.0;
+ minwest=dpp+(double)min_west;
+ maxnorth=(double)max_north-dpp;
symbol[0]='.';
symbol[1]='o';
count=0;
- fprintf(stdout,"\nComputing Longley-Rice coverage of %s ", source.name);
- fprintf(stdout,"out to a radius\nof %.2f miles with an RX antenna at %.2f feet AGL:\n\n 0%c to 25%c ",max_range,altitude,37,37);
- fflush(stdout);
+ fprintf(stdout,"\nComputing Longley-Rice ");
- /* 18.75=1200 pixels/degree divided by 64 loops
- per progress indicator symbol (.oOo) printed. */
+ if (LR.erp==0.0)
+ fprintf(stdout,"path loss");
+ else
+ {
+ if (dbm)
+ fprintf(stdout,"signal power level");
+ else
+ fprintf(stdout,"field strength");
+ }
+
+ fprintf(stdout," contours of \"%s\"\nout to a radius of %.2f %s with an RX antenna at %.2f %s AGL",source.name,metric?max_range*KM_PER_MILE:max_range,metric?"kilometers":"miles",metric?altitude*METERS_PER_FOOT:altitude,metric?"meters":"feet");
- z=(int)(18.75*ReduceAngle(max_west-min_west));
+ if (clutter>0.0)
+ fprintf(stdout,"\nand %.2f %s of ground clutter",metric?clutter*METERS_PER_FOOT:clutter,metric?"meters":"feet");
- for (lon=min_west, x=0; (LonDiff(lon,max_west)<=0.0); lon+=one_pixel)
+ fprintf(stdout,"...\n\n 0%c to 25%c ",37,37);
+ fflush(stdout);
+
+ if (plo_filename[0]!=0)
+ fd=fopen(plo_filename,"wb");
+
+ if (fd!=NULL)
+ {
+ /* Write header information to output file */
+
+ fprintf(fd,"%d, %d\t; max_west, min_west\n%d, %d\t; max_north, min_north\n",max_west, min_west, max_north, min_north);
+ }
+
+ /* th=pixels/degree divided by 64 loops per
+ progress indicator symbol (.oOo) printed. */
+
+ th=ppd/64.0;
+
+ z=(int)(th*ReduceAngle(max_west-min_west));
+
+ for (lon=minwest, x=0, y=0; (LonDiff(lon,(double)max_west)<=0.0); y++, lon=minwest+(dpp*(double)y))
{
if (lon>=360.0)
lon-=360.0;
edge.lon=lon;
edge.alt=altitude;
- PlotLRPath(source,edge);
+ PlotLRPath(source,edge,mask_value,fd);
count++;
if (count==z)
fprintf(stdout,"\n25%c to 50%c ",37,37);
fflush(stdout);
- z=(int)(18.75*(max_north-min_north));
+ z=(int)(th*(double)(max_north-min_north));
- for (lat=max_north, x=0; lat>=min_north; lat-=one_pixel)
+ for (lat=maxnorth, x=0, y=0; lat>=(double)min_north; y++, lat=maxnorth-(dpp*(double)y))
{
edge.lat=lat;
edge.lon=min_west;
edge.alt=altitude;
- PlotLRPath(source,edge);
+ PlotLRPath(source,edge,mask_value,fd);
count++;
if (count==z)
fprintf(stdout,"\n50%c to 75%c ",37,37);
fflush(stdout);
- z=(int)(18.75*ReduceAngle(max_west-min_west));
+ z=(int)(th*ReduceAngle(max_west-min_west));
- for (lon=min_west, x=0; (LonDiff(lon,max_west)<=0.0); lon+=one_pixel)
+ for (lon=minwest, x=0, y=0; (LonDiff(lon,(double)max_west)<=0.0); y++, lon=minwest+(dpp*(double)y))
{
if (lon>=360.0)
lon-=360.0;
edge.lon=lon;
edge.alt=altitude;
- PlotLRPath(source,edge);
+ PlotLRPath(source,edge,mask_value,fd);
count++;
if (count==z)
fprintf(stdout,"\n75%c to 100%c ",37,37);
fflush(stdout);
- z=(int)(18.75*(max_north-min_north));
+ z=(int)(th*(double)(max_north-min_north));
- for (lat=min_north, x=0; lat<=max_north; lat+=one_pixel)
+ for (lat=(double)min_north, x=0, y=0; lat<(double)max_north; y++, lat=(double)min_north+(dpp*(double)y))
{
edge.lat=lat;
edge.lon=max_west;
edge.alt=altitude;
- PlotLRPath(source,edge);
+ PlotLRPath(source,edge,mask_value,fd);
count++;
if (count==z)
}
}
+ if (fd!=NULL)
+ fclose(fd);
+
fprintf(stdout,"\nDone!\n");
fflush(stdout);
+
+ if (mask_value<30)
+ mask_value++;
+}
+
+void LoadSignalColors(struct site xmtr)
+{
+ int x, y, ok, val[4];
+ char filename[255], string[80], *pointer=NULL, *s=NULL;
+ FILE *fd=NULL;
+
+ for (x=0; xmtr.filename[x]!='.' && xmtr.filename[x]!=0 && x<250; x++)
+ filename[x]=xmtr.filename[x];
+
+ filename[x]='.';
+ filename[x+1]='s';
+ filename[x+2]='c';
+ filename[x+3]='f';
+ filename[x+4]=0;
+
+ /* Default values */
+
+ region.level[0]=128;
+ region.color[0][0]=255;
+ region.color[0][1]=0;
+ region.color[0][2]=0;
+
+ region.level[1]=118;
+ region.color[1][0]=255;
+ region.color[1][1]=165;
+ region.color[1][2]=0;
+
+ region.level[2]=108;
+ region.color[2][0]=255;
+ region.color[2][1]=206;
+ region.color[2][2]=0;
+
+ region.level[3]=98;
+ region.color[3][0]=255;
+ region.color[3][1]=255;
+ region.color[3][2]=0;
+
+ region.level[4]=88;
+ region.color[4][0]=184;
+ region.color[4][1]=255;
+ region.color[4][2]=0;
+
+ region.level[5]=78;
+ region.color[5][0]=0;
+ region.color[5][1]=255;
+ region.color[5][2]=0;
+
+ region.level[6]=68;
+ region.color[6][0]=0;
+ region.color[6][1]=208;
+ region.color[6][2]=0;
+
+ region.level[7]=58;
+ region.color[7][0]=0;
+ region.color[7][1]=196;
+ region.color[7][2]=196;
+
+ region.level[8]=48;
+ region.color[8][0]=0;
+ region.color[8][1]=148;
+ region.color[8][2]=255;
+
+ region.level[9]=38;
+ region.color[9][0]=80;
+ region.color[9][1]=80;
+ region.color[9][2]=255;
+
+ region.level[10]=28;
+ region.color[10][0]=0;
+ region.color[10][1]=38;
+ region.color[10][2]=255;
+
+ region.level[11]=18;
+ region.color[11][0]=142;
+ region.color[11][1]=63;
+ region.color[11][2]=255;
+
+ region.level[12]=8;
+ region.color[12][0]=140;
+ region.color[12][1]=0;
+ region.color[12][2]=128;
+
+ region.levels=13;
+
+ fd=fopen("splat.scf","r");
+
+ if (fd==NULL)
+ fd=fopen(filename,"r");
+
+ if (fd==NULL)
+ {
+ fd=fopen(filename,"w");
+
+ fprintf(fd,"; SPLAT! Auto-generated Signal Color Definition (\"%s\") File\n",filename);
+ fprintf(fd,";\n; Format for the parameters held in this file is as follows:\n;\n");
+ fprintf(fd,"; dBuV/m: red, green, blue\n;\n");
+ fprintf(fd,"; ...where \"dBuV/m\" is the signal strength (in dBuV/m) and\n");
+ fprintf(fd,"; \"red\", \"green\", and \"blue\" are the corresponding RGB color\n");
+ fprintf(fd,"; definitions ranging from 0 to 255 for the region specified.\n");
+ fprintf(fd,";\n; The following parameters may be edited and/or expanded\n");
+ fprintf(fd,"; for future runs of SPLAT! A total of 32 contour regions\n");
+ fprintf(fd,"; may be defined in this file.\n;\n;\n");
+
+ for (x=0; x<region.levels; x++)
+ fprintf(fd,"%3d: %3d, %3d, %3d\n",region.level[x], region.color[x][0], region.color[x][1], region.color[x][2]);
+
+ fclose(fd);
+ }
+
+ else
+ {
+ x=0;
+ s=fgets(string,80,fd);
+
+ while (x<32 && feof(fd)==0)
+ {
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ ok=sscanf(string,"%d: %d, %d, %d", &val[0], &val[1], &val[2], &val[3]);
+
+ if (ok==4)
+ {
+ for (y=0; y<4; y++)
+ {
+ if (val[y]>255)
+ val[y]=255;
+
+ if (val[y]<0)
+ val[y]=0;
+ }
+
+ region.level[x]=val[0];
+ region.color[x][0]=val[1];
+ region.color[x][1]=val[2];
+ region.color[x][2]=val[3];
+ x++;
+ }
+
+ s=fgets(string,80,fd);
+ }
+
+ fclose(fd);
+ region.levels=x;
+ }
+}
+
+void LoadLossColors(struct site xmtr)
+{
+ int x, y, ok, val[4];
+ char filename[255], string[80], *pointer=NULL, *s=NULL;
+ FILE *fd=NULL;
+
+ for (x=0; xmtr.filename[x]!='.' && xmtr.filename[x]!=0 && x<250; x++)
+ filename[x]=xmtr.filename[x];
+
+ filename[x]='.';
+ filename[x+1]='l';
+ filename[x+2]='c';
+ filename[x+3]='f';
+ filename[x+4]=0;
+
+ /* Default values */
+
+ region.level[0]=80;
+ region.color[0][0]=255;
+ region.color[0][1]=0;
+ region.color[0][2]=0;
+
+ region.level[1]=90;
+ region.color[1][0]=255;
+ region.color[1][1]=128;
+ region.color[1][2]=0;
+
+ region.level[2]=100;
+ region.color[2][0]=255;
+ region.color[2][1]=165;
+ region.color[2][2]=0;
+
+ region.level[3]=110;
+ region.color[3][0]=255;
+ region.color[3][1]=206;
+ region.color[3][2]=0;
+
+ region.level[4]=120;
+ region.color[4][0]=255;
+ region.color[4][1]=255;
+ region.color[4][2]=0;
+
+ region.level[5]=130;
+ region.color[5][0]=184;
+ region.color[5][1]=255;
+ region.color[5][2]=0;
+
+ region.level[6]=140;
+ region.color[6][0]=0;
+ region.color[6][1]=255;
+ region.color[6][2]=0;
+
+ region.level[7]=150;
+ region.color[7][0]=0;
+ region.color[7][1]=208;
+ region.color[7][2]=0;
+
+ region.level[8]=160;
+ region.color[8][0]=0;
+ region.color[8][1]=196;
+ region.color[8][2]=196;
+
+ region.level[9]=170;
+ region.color[9][0]=0;
+ region.color[9][1]=148;
+ region.color[9][2]=255;
+
+ region.level[10]=180;
+ region.color[10][0]=80;
+ region.color[10][1]=80;
+ region.color[10][2]=255;
+
+ region.level[11]=190;
+ region.color[11][0]=0;
+ region.color[11][1]=38;
+ region.color[11][2]=255;
+
+ region.level[12]=200;
+ region.color[12][0]=142;
+ region.color[12][1]=63;
+ region.color[12][2]=255;
+
+ region.level[13]=210;
+ region.color[13][0]=196;
+ region.color[13][1]=54;
+ region.color[13][2]=255;
+
+ region.level[14]=220;
+ region.color[14][0]=255;
+ region.color[14][1]=0;
+ region.color[14][2]=255;
+
+ region.level[15]=230;
+ region.color[15][0]=255;
+ region.color[15][1]=194;
+ region.color[15][2]=204;
+
+ region.levels=16;
+
+ fd=fopen("splat.lcf","r");
+
+ if (fd==NULL)
+ fd=fopen(filename,"r");
+
+ if (fd==NULL)
+ {
+ fd=fopen(filename,"w");
+
+ fprintf(fd,"; SPLAT! Auto-generated Path-Loss Color Definition (\"%s\") File\n",filename);
+ fprintf(fd,";\n; Format for the parameters held in this file is as follows:\n;\n");
+ fprintf(fd,"; dB: red, green, blue\n;\n");
+ fprintf(fd,"; ...where \"dB\" is the path loss (in dB) and\n");
+ fprintf(fd,"; \"red\", \"green\", and \"blue\" are the corresponding RGB color\n");
+ fprintf(fd,"; definitions ranging from 0 to 255 for the region specified.\n");
+ fprintf(fd,";\n; The following parameters may be edited and/or expanded\n");
+ fprintf(fd,"; for future runs of SPLAT! A total of 32 contour regions\n");
+ fprintf(fd,"; may be defined in this file.\n;\n;\n");
+
+ for (x=0; x<region.levels; x++)
+ fprintf(fd,"%3d: %3d, %3d, %3d\n",region.level[x], region.color[x][0], region.color[x][1], region.color[x][2]);
+
+ fclose(fd);
+ }
+
+ else
+ {
+ x=0;
+ s=fgets(string,80,fd);
+
+ while (x<32 && feof(fd)==0)
+ {
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ ok=sscanf(string,"%d: %d, %d, %d", &val[0], &val[1], &val[2], &val[3]);
+
+ if (ok==4)
+ {
+ for (y=0; y<4; y++)
+ {
+ if (val[y]>255)
+ val[y]=255;
+
+ if (val[y]<0)
+ val[y]=0;
+ }
+
+ region.level[x]=val[0];
+ region.color[x][0]=val[1];
+ region.color[x][1]=val[2];
+ region.color[x][2]=val[3];
+ x++;
+ }
+
+ s=fgets(string,80,fd);
+ }
+
+ fclose(fd);
+ region.levels=x;
+ }
+}
+
+void LoadDBMColors(struct site xmtr)
+{
+ int x, y, ok, val[4];
+ char filename[255], string[80], *pointer=NULL, *s=NULL;
+ FILE *fd=NULL;
+
+ for (x=0; xmtr.filename[x]!='.' && xmtr.filename[x]!=0 && x<250; x++)
+ filename[x]=xmtr.filename[x];
+
+ filename[x]='.';
+ filename[x+1]='d';
+ filename[x+2]='c';
+ filename[x+3]='f';
+ filename[x+4]=0;
+
+ /* Default values */
+
+ region.level[0]=0;
+ region.color[0][0]=255;
+ region.color[0][1]=0;
+ region.color[0][2]=0;
+
+ region.level[1]=-10;
+ region.color[1][0]=255;
+ region.color[1][1]=128;
+ region.color[1][2]=0;
+
+ region.level[2]=-20;
+ region.color[2][0]=255;
+ region.color[2][1]=165;
+ region.color[2][2]=0;
+
+ region.level[3]=-30;
+ region.color[3][0]=255;
+ region.color[3][1]=206;
+ region.color[3][2]=0;
+
+ region.level[4]=-40;
+ region.color[4][0]=255;
+ region.color[4][1]=255;
+ region.color[4][2]=0;
+
+ region.level[5]=-50;
+ region.color[5][0]=184;
+ region.color[5][1]=255;
+ region.color[5][2]=0;
+
+ region.level[6]=-60;
+ region.color[6][0]=0;
+ region.color[6][1]=255;
+ region.color[6][2]=0;
+
+ region.level[7]=-70;
+ region.color[7][0]=0;
+ region.color[7][1]=208;
+ region.color[7][2]=0;
+
+ region.level[8]=-80;
+ region.color[8][0]=0;
+ region.color[8][1]=196;
+ region.color[8][2]=196;
+
+ region.level[9]=-90;
+ region.color[9][0]=0;
+ region.color[9][1]=148;
+ region.color[9][2]=255;
+
+ region.level[10]=-100;
+ region.color[10][0]=80;
+ region.color[10][1]=80;
+ region.color[10][2]=255;
+
+ region.level[11]=-110;
+ region.color[11][0]=0;
+ region.color[11][1]=38;
+ region.color[11][2]=255;
+
+ region.level[12]=-120;
+ region.color[12][0]=142;
+ region.color[12][1]=63;
+ region.color[12][2]=255;
+
+ region.level[13]=-130;
+ region.color[13][0]=196;
+ region.color[13][1]=54;
+ region.color[13][2]=255;
+
+ region.level[14]=-140;
+ region.color[14][0]=255;
+ region.color[14][1]=0;
+ region.color[14][2]=255;
+
+ region.level[15]=-150;
+ region.color[15][0]=255;
+ region.color[15][1]=194;
+ region.color[15][2]=204;
+
+ region.levels=16;
+
+ fd=fopen("splat.dcf","r");
+
+ if (fd==NULL)
+ fd=fopen(filename,"r");
+
+ if (fd==NULL)
+ {
+ fd=fopen(filename,"w");
+
+ fprintf(fd,"; SPLAT! Auto-generated DBM Signal Level Color Definition (\"%s\") File\n",filename);
+ fprintf(fd,";\n; Format for the parameters held in this file is as follows:\n;\n");
+ fprintf(fd,"; dBm: red, green, blue\n;\n");
+ fprintf(fd,"; ...where \"dBm\" is the received signal power level between +40 dBm\n");
+ fprintf(fd,"; and -200 dBm, and \"red\", \"green\", and \"blue\" are the corresponding\n");
+ fprintf(fd,"; RGB color definitions ranging from 0 to 255 for the region specified.\n");
+ fprintf(fd,";\n; The following parameters may be edited and/or expanded\n");
+ fprintf(fd,"; for future runs of SPLAT! A total of 32 contour regions\n");
+ fprintf(fd,"; may be defined in this file.\n;\n;\n");
+
+ for (x=0; x<region.levels; x++)
+ fprintf(fd,"%+4d: %3d, %3d, %3d\n",region.level[x], region.color[x][0], region.color[x][1], region.color[x][2]);
+
+ fclose(fd);
+ }
+
+ else
+ {
+ x=0;
+ s=fgets(string,80,fd);
+
+ while (x<32 && feof(fd)==0)
+ {
+ pointer=strchr(string,';');
+
+ if (pointer!=NULL)
+ *pointer=0;
+
+ ok=sscanf(string,"%d: %d, %d, %d", &val[0], &val[1], &val[2], &val[3]);
+
+ if (ok==4)
+ {
+ if (val[0]<-200)
+ val[0]=-200;
+
+ if (val[0]>+40)
+ val[0]=+40;
+
+ region.level[x]=val[0];
+
+ for (y=1; y<4; y++)
+ {
+ if (val[y]>255)
+ val[y]=255;
+
+ if (val[y]<0)
+ val[y]=0;
+ }
+
+ region.color[x][0]=val[1];
+ region.color[x][1]=val[2];
+ region.color[x][2]=val[3];
+ x++;
+ }
+
+ s=fgets(string,80,fd);
+ }
+
+ fclose(fd);
+ region.levels=x;
+ }
}
-void WritePPM(char *filename)
+void WritePPM(char *filename, unsigned char geo, unsigned char kml, unsigned char ngs, struct site *xmtr, unsigned char txsites)
{
/* This function generates a topographic map in Portable Pix Map
(PPM) format based on logarithmically scaled topology data,
from its representation in dem[][] so that north points
up and east points right in the image generated. */
- char mapfile[255];
+ char mapfile[255], geofile[255], kmlfile[255];
unsigned char found, mask;
- unsigned width, height, output;
- int indx, x, y, x0=0, y0=0, minlat, minlon;
- float lat, lon, one_pixel, conversion, one_over_gamma;
+ unsigned width, height, terrain;
+ int indx, x, y, x0=0, y0=0;
+ double lat, lon, conversion, one_over_gamma,
+ north, south, east, west, minwest;
FILE *fd;
- one_pixel=1.0/1200.0;
one_over_gamma=1.0/GAMMA;
conversion=255.0/pow((double)(max_elevation-min_elevation),one_over_gamma);
- width=(unsigned)(1200*ReduceAngle(max_west-min_west));
- height=(unsigned)(1200*ReduceAngle(max_north-min_north));
+ width=(unsigned)(ippd*ReduceAngle(max_west-min_west));
+ height=(unsigned)(ippd*ReduceAngle(max_north-min_north));
if (filename[0]==0)
- strncpy(mapfile, "map.ppm\0",8);
- else
{
- for (x=0; filename[x]!='.' && filename[x]!=0 && x<250; x++)
- mapfile[x]=filename[x];
+ strncpy(filename, xmtr[0].filename,254);
+ filename[strlen(filename)-4]=0; /* Remove .qth */
+ }
+
+ y=strlen(filename);
+
+ if (y>4)
+ {
+ if (filename[y-1]=='m' && filename[y-2]=='p' && filename[y-3]=='p' && filename[y-4]=='.')
+ y-=4;
+ }
+
+ for (x=0; x<y; x++)
+ {
+ mapfile[x]=filename[x];
+ geofile[x]=filename[x];
+ kmlfile[x]=filename[x];
+ }
+
+ mapfile[x]='.';
+ geofile[x]='.';
+ kmlfile[x]='.';
+ mapfile[x+1]='p';
+ geofile[x+1]='g';
+ kmlfile[x+1]='k';
+ mapfile[x+2]='p';
+ geofile[x+2]='e';
+ kmlfile[x+2]='m';
+ mapfile[x+3]='m';
+ geofile[x+3]='o';
+ kmlfile[x+3]='l';
+ mapfile[x+4]=0;
+ geofile[x+4]=0;
+ kmlfile[x+4]=0;
+
+ minwest=((double)min_west)+dpp;
+
+ if (minwest>360.0)
+ minwest-=360.0;
+
+ north=(double)max_north-dpp;
+ south=(double)min_north;
+ east=(minwest<180.0?-minwest:360.0-min_west);
+ west=(double)(max_west<180?-max_west:360-max_west);
+
+ if (kml==0 && geo)
+ {
+ fd=fopen(geofile,"wb");
+
+ fprintf(fd,"FILENAME\t%s\n",mapfile);
+ fprintf(fd,"#\t\tX\tY\tLong\t\tLat\n");
+ fprintf(fd,"TIEPOINT\t0\t0\t%.3f\t\t%.3f\n",west,north);
+ fprintf(fd,"TIEPOINT\t%u\t%u\t%.3f\t\t%.3f\n",width-1,height-1,east,south);
+ fprintf(fd,"IMAGESIZE\t%u\t%u\n",width,height);
+ fprintf(fd,"#\n# Auto Generated by %s v%s\n#\n",splat_name,splat_version);
+
+ fclose(fd);
+ }
+
+ if (kml && geo==0)
+ {
+ fd=fopen(kmlfile,"wb");
+
+ fprintf(fd,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+ fprintf(fd,"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n");
+ fprintf(fd," <Folder>\n");
+ fprintf(fd," <name>%s</name>\n",splat_name);
+ fprintf(fd," <description>Line-of-Sight Overlay</description>\n");
+ fprintf(fd," <GroundOverlay>\n");
+ fprintf(fd," <name>%s Line-of-Sight Overlay</name>\n",splat_name);
+ fprintf(fd," <description>SPLAT! Coverage</description>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>%s</href>\n",mapfile);
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," <opacity>128</opacity>\n");
+ fprintf(fd," <LatLonBox>\n");
+ fprintf(fd," <north>%.5f</north>\n",north);
+ fprintf(fd," <south>%.5f</south>\n",south);
+ fprintf(fd," <east>%.5f</east>\n",east);
+ fprintf(fd," <west>%.5f</west>\n",west);
+ fprintf(fd," <rotation>0.0</rotation>\n");
+ fprintf(fd," </LatLonBox>\n");
+ fprintf(fd," </GroundOverlay>\n");
+
+ for (x=0; x<txsites; x++)
+ {
+ fprintf(fd," <Placemark>\n");
+ fprintf(fd," <name>%s</name>\n",xmtr[x].name);
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <IconStyle>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>root://icons/palette-5.png</href>\n");
+ fprintf(fd," <x>224</x>\n");
+ fprintf(fd," <y>224</y>\n");
+ fprintf(fd," <w>32</w>\n");
+ fprintf(fd," <h>32</h>\n");
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," </IconStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <Point>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>%f,%f,%f</coordinates>\n",(xmtr[x].lon<180.0?-xmtr[x].lon:360.0-xmtr[x].lon), xmtr[x].lat, xmtr[x].alt);
+ fprintf(fd," </Point>\n");
+ fprintf(fd," </Placemark>\n");
+ }
+
- mapfile[x]='.';
- mapfile[x+1]='p';
- mapfile[x+2]='p';
- mapfile[x+3]='m';
- mapfile[x+4]=0;
+
+ fprintf(fd," </Folder>\n");
+ fprintf(fd,"</kml>\n");
+
+ fclose(fd);
}
fd=fopen(mapfile,"wb");
fprintf(fd,"P6\n%u %u\n255\n",width,height);
-
fprintf(stdout,"\nWriting \"%s\" (%ux%u pixmap image)... ",mapfile,width,height);
fflush(stdout);
- for (y=0, lat=((double)max_north)-one_pixel; y<(int)height; y++, lat-=one_pixel)
+ for (y=0, lat=north; y<(int)height; y++, lat=north-(dpp*(double)y))
{
- minlat=(int)floor(lat);
-
- for (x=0, lon=((double)max_west)-one_pixel; x<(int)width; x++, lon-=one_pixel)
+ for (x=0, lon=max_west; x<(int)width; x++, lon=(double)max_west-(dpp*(double)x))
{
if (lon<0.0)
lon+=360.0;
- minlon=(int)floor(lon);
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x0=(int)rint(ppd*(lat-(double)dem[indx].min_north));
+ y0=mpi-(int)rint(ppd*(LonDiff((double)dem[indx].max_west,lon)));
- for (indx=0, found=0; indx<MAXSLOTS && found==0;)
- if (minlat==dem[indx].min_north && minlon==dem[indx].min_west)
+ if (x0>=0 && x0<=mpi && y0>=0 && y0<=mpi)
found=1;
else
indx++;
+ }
if (found)
{
- x0=(int)(1199.0*(lat-floor(lat)));
- y0=(int)(1199.0*(lon-floor(lon)));
-
mask=dem[indx].mask[x0][y0];
if (mask&2)
break;
default:
- /* Water: Medium Blue */
- if (dem[indx].data[x0][y0]==0)
- fprintf(fd,"%c%c%c",0,0,170);
+ if (ngs) /* No terrain */
+ fprintf(fd,"%c%c%c",255,255,255);
else
{
- /* Elevation: Greyscale */
- output=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
- fprintf(fd,"%c%c%c",output,output,output);
+ /* Sea-level: Medium Blue */
+ if (dem[indx].data[x0][y0]==0)
+ fprintf(fd,"%c%c%c",0,0,170);
+ else
+ {
+ /* Elevation: Greyscale */
+ terrain=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
+ fprintf(fd,"%c%c%c",terrain,terrain,terrain);
+ }
}
}
}
fflush(stdout);
}
-void WritePPMLR(char *filename)
+void WritePPMLR(char *filename, unsigned char geo, unsigned char kml, unsigned char ngs, struct site *xmtr, unsigned char txsites)
{
/* This function generates a topographic map in Portable Pix Map
(PPM) format based on the content of flags held in the mask[][]
90 degrees from its representation in dem[][] so that north
points up and east points right in the image generated. */
- char mapfile[255];
- unsigned width, height, output;
+ char mapfile[255], geofile[255], kmlfile[255];
+ unsigned width, height, red, green, blue, terrain=0;
unsigned char found, mask, cityorcounty;
- int indx, x, y, t, t2, x0, y0, minlat, minlon, loss;
- float lat, lon, one_pixel, conversion, one_over_gamma;
+ int indx, x, y, z, colorwidth, x0, y0, loss, level,
+ hundreds, tens, units, match;
+ double lat, lon, conversion, one_over_gamma,
+ north, south, east, west, minwest;
FILE *fd;
- one_pixel=1.0/1200.0;
one_over_gamma=1.0/GAMMA;
conversion=255.0/pow((double)(max_elevation-min_elevation),one_over_gamma);
- width=(unsigned)(1200*ReduceAngle(max_west-min_west));
- height=(unsigned)(1200*ReduceAngle(max_north-min_north));
+ width=(unsigned)(ippd*ReduceAngle(max_west-min_west));
+ height=(unsigned)(ippd*ReduceAngle(max_north-min_north));
+
+ LoadLossColors(xmtr[0]);
if (filename[0]==0)
- strncpy(mapfile, "map.ppm\0",8);
+ {
+ strncpy(filename, xmtr[0].filename,254);
+ filename[strlen(filename)-4]=0; /* Remove .qth */
+ }
+
+ y=strlen(filename);
+
+ if (y>4)
+ {
+ if (filename[y-1]=='m' && filename[y-2]=='p' && filename[y-3]=='p' && filename[y-4]=='.')
+ y-=4;
+ }
+
+ for (x=0; x<y; x++)
+ {
+ mapfile[x]=filename[x];
+ geofile[x]=filename[x];
+ kmlfile[x]=filename[x];
+ }
+
+ mapfile[x]='.';
+ geofile[x]='.';
+ kmlfile[x]='.';
+ mapfile[x+1]='p';
+ geofile[x+1]='g';
+ kmlfile[x+1]='k';
+ mapfile[x+2]='p';
+ geofile[x+2]='e';
+ kmlfile[x+2]='m';
+ mapfile[x+3]='m';
+ geofile[x+3]='o';
+ kmlfile[x+3]='l';
+ mapfile[x+4]=0;
+ geofile[x+4]=0;
+ kmlfile[x+4]=0;
+
+ minwest=((double)min_west)+dpp;
+
+ if (minwest>360.0)
+ minwest-=360.0;
+
+ north=(double)max_north-dpp;
+
+ if (kml || geo)
+ south=(double)min_north; /* No bottom legend */
else
+ south=(double)min_north-(30.0/ppd); /* 30 pixels for bottom legend */
+
+ east=(minwest<180.0?-minwest:360.0-min_west);
+ west=(double)(max_west<180?-max_west:360-max_west);
+
+ if (kml==0 && geo)
+ {
+ fd=fopen(geofile,"wb");
+
+ fprintf(fd,"FILENAME\t%s\n",mapfile);
+ fprintf(fd,"#\t\tX\tY\tLong\t\tLat\n");
+ fprintf(fd,"TIEPOINT\t0\t0\t%.3f\t\t%.3f\n",west,north);
+
+ fprintf(fd,"TIEPOINT\t%u\t%u\t%.3f\t\t%.3f\n",width-1,height-1,east,south);
+ fprintf(fd,"IMAGESIZE\t%u\t%u\n",width,height);
+
+ fprintf(fd,"#\n# Auto Generated by %s v%s\n#\n",splat_name,splat_version);
+
+ fclose(fd);
+ }
+
+ if (kml && geo==0)
{
- for (x=0; filename[x]!='.' && filename[x]!=0 && x<250; x++)
- mapfile[x]=filename[x];
+ fd=fopen(kmlfile,"wb");
+
+ fprintf(fd,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+ fprintf(fd,"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n");
+ fprintf(fd,"<!-- Generated by %s Version %s -->\n",splat_name,splat_version);
+ fprintf(fd," <Folder>\n");
+ fprintf(fd," <name>%s</name>\n",splat_name);
+ fprintf(fd," <description>%s Transmitter Path Loss Overlay</description>\n",xmtr[0].name);
+ fprintf(fd," <GroundOverlay>\n");
+ fprintf(fd," <name>SPLAT! Path Loss Overlay</name>\n");
+ fprintf(fd," <description>SPLAT! Coverage</description>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>%s</href>\n",mapfile);
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," <opacity>128</opacity>\n");
+ fprintf(fd," <LatLonBox>\n");
+ fprintf(fd," <north>%.5f</north>\n",north);
+ fprintf(fd," <south>%.5f</south>\n",south);
+ fprintf(fd," <east>%.5f</east>\n",east);
+ fprintf(fd," <west>%.5f</west>\n",west);
+ fprintf(fd," <rotation>0.0</rotation>\n");
+ fprintf(fd," </LatLonBox>\n");
+ fprintf(fd," </GroundOverlay>\n");
+
+ for (x=0; x<txsites; x++)
+ {
+ fprintf(fd," <Placemark>\n");
+ fprintf(fd," <name>%s</name>\n",xmtr[x].name);
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <IconStyle>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>root://icons/palette-5.png</href>\n");
+ fprintf(fd," <x>224</x>\n");
+ fprintf(fd," <y>224</y>\n");
+ fprintf(fd," <w>32</w>\n");
+ fprintf(fd," <h>32</h>\n");
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," </IconStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <Point>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>%f,%f,%f</coordinates>\n",(xmtr[x].lon<180.0?-xmtr[x].lon:360.0-xmtr[x].lon), xmtr[x].lat, xmtr[x].alt);
+ fprintf(fd," </Point>\n");
+ fprintf(fd," </Placemark>\n");
+ }
+
+ fprintf(fd," </Folder>\n");
+ fprintf(fd,"</kml>\n");
- mapfile[x]='.';
- mapfile[x+1]='p';
- mapfile[x+2]='p';
- mapfile[x+3]='m';
- mapfile[x+4]=0;
+ fclose(fd);
}
fd=fopen(mapfile,"wb");
- fprintf(fd,"P6\n%u %u\n255\n",width,height+30);
-
- fprintf(stdout,"\nWriting \"%s\" (%ux%u pixmap image)... ",mapfile,width,height+30);
+ fprintf(fd,"P6\n%u %u\n255\n",width,(kml?height:height+30));
+ fprintf(stdout,"\nWriting \"%s\" (%ux%u pixmap image)... ",mapfile,width,(kml?height:height+30));
fflush(stdout);
- for (y=0, lat=((double)max_north)-one_pixel; y<(int)height; y++, lat-=one_pixel)
+ for (y=0, lat=north; y<(int)height; y++, lat=north-(dpp*(double)y))
{
- minlat=(int)floor(lat);
-
- for (x=0, lon=((double)max_west)-one_pixel; x<(int)width; x++, lon-=one_pixel)
+ for (x=0, lon=max_west; x<(int)width; x++, lon=max_west-(dpp*(double)x))
{
if (lon<0.0)
lon+=360.0;
- minlon=(int)floor(lon);
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x0=(int)rint(ppd*(lat-(double)dem[indx].min_north));
+ y0=mpi-(int)rint(ppd*(LonDiff((double)dem[indx].max_west,lon)));
- for (indx=0, found=0; indx<MAXSLOTS && found==0;)
- if (minlat==dem[indx].min_north && minlon==dem[indx].min_west)
+ if (x0>=0 && x0<=mpi && y0>=0 && y0<=mpi)
found=1;
else
indx++;
+ }
+
if (found)
{
- x0=(int)(1199.0*(lat-floor(lat)));
- y0=(int)(1199.0*(lon-floor(lon)));
-
mask=dem[indx].mask[x0][y0];
- loss=70+(10*(int)((mask&248)>>3));
+ loss=(dem[indx].signal[x0][y0]);
cityorcounty=0;
+ match=255;
+
+ red=0;
+ green=0;
+ blue=0;
+
+ if (loss<=region.level[0])
+ match=0;
+ else
+ {
+ for (z=1; (z<region.levels && match==255); z++)
+ {
+ if (loss>=region.level[z-1] && loss<region.level[z])
+ match=z;
+ }
+ }
+
+ if (match<region.levels)
+ {
+ red=region.color[match][0];
+ green=region.color[match][1];
+ blue=region.color[match][2];
+ }
+
if (mask&2)
{
- /* Text Labels - Black or Red */
+ /* Text Labels: Red or otherwise */
- /* if ((mask&120) && (loss<=maxdB)) */
- if ((mask&120) && (loss<=90))
- fprintf(fd,"%c%c%c",0,0,0);
- else
- fprintf(fd,"%c%c%c",255,0,0);
+ if (red>=180 && green<=75 && blue<=75 && loss!=0)
+ fprintf(fd,"%c%c%c",255^red,255^green,255^blue);
+ else
+ fprintf(fd,"%c%c%c",255,0,0);
- cityorcounty=1;
+ cityorcounty=1;
}
else if (mask&4)
if (cityorcounty==0)
{
- if (loss>maxdB)
-
- { /* Display land or sea elevation */
-
- if (dem[indx].data[x0][y0]==0)
- fprintf(fd,"%c%c%c",0,0,170);
+ if (loss==0 || (contour_threshold!=0 && loss>abs(contour_threshold)))
+ {
+ if (ngs) /* No terrain */
+ fprintf(fd,"%c%c%c",255,255,255);
else
{
- /* Elevation: Greyscale */
- output=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
- fprintf(fd,"%c%c%c",output,output,output);
+ /* Display land or sea elevation */
+
+ if (dem[indx].data[x0][y0]==0)
+ fprintf(fd,"%c%c%c",0,0,170);
+ else
+ {
+ terrain=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
+ fprintf(fd,"%c%c%c",terrain,terrain,terrain);
+ }
}
}
- else switch (loss)
+ else
{
- /* Plot signal loss in color */
+ /* Plot path loss in color */
- case 80:
- fprintf(fd,"%c%c%c",255,0,0);
- break;
+ if (red!=0 || green!=0 || blue!=0)
+ fprintf(fd,"%c%c%c",red,green,blue);
- case 90:
- fprintf(fd,"%c%c%c",255,128,0);
- break;
+ else /* terrain / sea-level */
+ {
+ if (dem[indx].data[x0][y0]==0)
+ fprintf(fd,"%c%c%c",0,0,170);
+ else
+ {
+ /* Elevation: Greyscale */
+ terrain=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
+ fprintf(fd,"%c%c%c",terrain,terrain,terrain);
+ }
+ }
+ }
+ }
+ }
- case 100:
- fprintf(fd,"%c%c%c",255,165,0);
- break;
+ else
+ {
+ /* We should never get here, but if */
+ /* we do, display the region as black */
- case 110:
- fprintf(fd,"%c%c%c",255,206,0);
- break;
+ fprintf(fd,"%c%c%c",0,0,0);
+ }
+ }
+ }
- case 120:
- fprintf(fd,"%c%c%c",255,255,0);
- break;
+ if (kml==0 && geo==0)
+ {
+ /* Display legend along bottom of image
+ * if not generating .kml or .geo output.
+ */
- case 130:
- fprintf(fd,"%c%c%c",184,255,0);
- break;
+ colorwidth=(int)rint((float)width/(float)region.levels);
- case 140:
- fprintf(fd,"%c%c%c",0,255,0);
- break;
+ for (y0=0; y0<30; y0++)
+ {
+ for (x0=0; x0<(int)width; x0++)
+ {
+ indx=x0/colorwidth;
+ x=x0%colorwidth;
+ level=region.level[indx];
- case 150:
- fprintf(fd,"%c%c%c",0,208,0);
- break;
+ hundreds=level/100;
- case 160:
- fprintf(fd,"%c%c%c",0,196,196);
- break;
+ if (hundreds>0)
+ level-=(hundreds*100);
- case 170:
- fprintf(fd,"%c%c%c",0,148,255);
- break;
+ tens=level/10;
- case 180:
- fprintf(fd,"%c%c%c",80,80,255);
- break;
+ if (tens>0)
+ level-=(tens*10);
- case 190:
- fprintf(fd,"%c%c%c",0,38,255);
- break;
+ units=level;
- case 200:
- fprintf(fd,"%c%c%c",142,63,255);
- break;
+ if (y0>=8 && y0<=23)
+ {
+ if (hundreds>0)
+ {
+ if (x>=11 && x<=18)
+ if (fontdata[16*(hundreds+'0')+(y0-8)]&(128>>(x-11)))
+ indx=255;
+ }
- case 210:
- fprintf(fd,"%c%c%c",196,54,255);
- break;
+ if (tens>0 || hundreds>0)
+ {
+ if (x>=19 && x<=26)
+ if (fontdata[16*(tens+'0')+(y0-8)]&(128>>(x-19)))
+ indx=255;
+ }
+
+ if (x>=27 && x<=34)
+ if (fontdata[16*(units+'0')+(y0-8)]&(128>>(x-27)))
+ indx=255;
- case 220:
- fprintf(fd,"%c%c%c",255,0,255);
- break;
+ if (x>=42 && x<=49)
+ if (fontdata[16*('d')+(y0-8)]&(128>>(x-42)))
+ indx=255;
- case 230:
- fprintf(fd,"%c%c%c",255,194,204);
- break;
+ if (x>=50 && x<=57)
+ if (fontdata[16*('B')+(y0-8)]&(128>>(x-50)))
+ indx=255;
+ }
- default:
+ if (indx>region.levels)
+ fprintf(fd,"%c%c%c",0,0,0);
+ else
+ {
+ red=region.color[indx][0];
+ green=region.color[indx][1];
+ blue=region.color[indx][2];
- if (dem[indx].data[x0][y0]==0)
- fprintf(fd,"%c%c%c",0,0,170);
+ fprintf(fd,"%c%c%c",red,green,blue);
+ }
+ }
+ }
+ }
+
+ fclose(fd);
+ fprintf(stdout,"Done!\n");
+ fflush(stdout);
+}
+
+void WritePPMSS(char *filename, unsigned char geo, unsigned char kml, unsigned char ngs, struct site *xmtr, unsigned char txsites)
+{
+ /* This function generates a topographic map in Portable Pix Map
+ (PPM) format based on the signal strength values held in the
+ signal[][] array. The image created is rotated counter-clockwise
+ 90 degrees from its representation in dem[][] so that north
+ points up and east points right in the image generated. */
+
+ char mapfile[255], geofile[255], kmlfile[255];
+ unsigned width, height, terrain, red, green, blue;
+ unsigned char found, mask, cityorcounty;
+ int indx, x, y, z=1, x0, y0, signal, level, hundreds,
+ tens, units, match, colorwidth;
+ double conversion, one_over_gamma, lat, lon,
+ north, south, east, west, minwest;
+ FILE *fd;
+
+ one_over_gamma=1.0/GAMMA;
+ conversion=255.0/pow((double)(max_elevation-min_elevation),one_over_gamma);
+
+ width=(unsigned)(ippd*ReduceAngle(max_west-min_west));
+ height=(unsigned)(ippd*ReduceAngle(max_north-min_north));
+
+ LoadSignalColors(xmtr[0]);
+
+ if (filename[0]==0)
+ {
+ strncpy(filename, xmtr[0].filename,254);
+ filename[strlen(filename)-4]=0; /* Remove .qth */
+ }
+
+ y=strlen(filename);
+
+ if (y>4)
+ {
+ if (filename[y-1]=='m' && filename[y-2]=='p' && filename[y-3]=='p' && filename[y-4]=='.')
+ y-=4;
+ }
+
+ for (x=0; x<y; x++)
+ {
+ mapfile[x]=filename[x];
+ geofile[x]=filename[x];
+ kmlfile[x]=filename[x];
+ }
+
+ mapfile[x]='.';
+ geofile[x]='.';
+ kmlfile[x]='.';
+ mapfile[x+1]='p';
+ geofile[x+1]='g';
+ kmlfile[x+1]='k';
+ mapfile[x+2]='p';
+ geofile[x+2]='e';
+ kmlfile[x+2]='m';
+ mapfile[x+3]='m';
+ geofile[x+3]='o';
+ kmlfile[x+3]='l';
+ mapfile[x+4]=0;
+ geofile[x+4]=0;
+ kmlfile[x+4]=0;
+
+ minwest=((double)min_west)+dpp;
+
+ if (minwest>360.0)
+ minwest-=360.0;
+
+ north=(double)max_north-dpp;
+
+ if (kml || geo)
+ south=(double)min_north; /* No bottom legend */
+ else
+ south=(double)min_north-(30.0/ppd); /* 30 pixels for bottom legend */
+
+ east=(minwest<180.0?-minwest:360.0-min_west);
+ west=(double)(max_west<180?-max_west:360-max_west);
+
+ if (geo && kml==0)
+ {
+ fd=fopen(geofile,"wb");
+
+ fprintf(fd,"FILENAME\t%s\n",mapfile);
+ fprintf(fd,"#\t\tX\tY\tLong\t\tLat\n");
+ fprintf(fd,"TIEPOINT\t0\t0\t%.3f\t\t%.3f\n",west,north);
+
+ fprintf(fd,"TIEPOINT\t%u\t%u\t%.3f\t\t%.3f\n",width-1,height-1,east,south);
+ fprintf(fd,"IMAGESIZE\t%u\t%u\n",width,height);
+
+ fprintf(fd,"#\n# Auto Generated by %s v%s\n#\n",splat_name,splat_version);
+
+ fclose(fd);
+ }
+
+ if (kml && geo==0)
+ {
+ fd=fopen(kmlfile,"wb");
+
+ fprintf(fd,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+ fprintf(fd,"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n");
+ fprintf(fd,"<!-- Generated by %s Version %s -->\n",splat_name,splat_version);
+ fprintf(fd," <Folder>\n");
+ fprintf(fd," <name>%s</name>\n",splat_name);
+ fprintf(fd," <description>%s Transmitter Coverage Overlay</description>\n",xmtr[0].name);
+ fprintf(fd," <GroundOverlay>\n");
+ fprintf(fd," <name>SPLAT! Signal Strength Overlay</name>\n");
+ fprintf(fd," <description>SPLAT! Coverage</description>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>%s</href>\n",mapfile);
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," <opacity>128</opacity>\n");
+ fprintf(fd," <LatLonBox>\n");
+ fprintf(fd," <north>%.5f</north>\n",north);
+ fprintf(fd," <south>%.5f</south>\n",south);
+ fprintf(fd," <east>%.5f</east>\n",east);
+ fprintf(fd," <west>%.5f</west>\n",west);
+ fprintf(fd," <rotation>0.0</rotation>\n");
+ fprintf(fd," </LatLonBox>\n");
+ fprintf(fd," </GroundOverlay>\n");
+
+ for (x=0; x<txsites; x++)
+ {
+ fprintf(fd," <Placemark>\n");
+ fprintf(fd," <name>%s</name>\n",xmtr[x].name);
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <IconStyle>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>root://icons/palette-5.png</href>\n");
+ fprintf(fd," <x>224</x>\n");
+ fprintf(fd," <y>224</y>\n");
+ fprintf(fd," <w>32</w>\n");
+ fprintf(fd," <h>32</h>\n");
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," </IconStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <Point>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>%f,%f,%f</coordinates>\n",(xmtr[x].lon<180.0?-xmtr[x].lon:360.0-xmtr[x].lon), xmtr[x].lat, xmtr[x].alt);
+ fprintf(fd," </Point>\n");
+ fprintf(fd," </Placemark>\n");
+ }
+
+ fprintf(fd," </Folder>\n");
+ fprintf(fd,"</kml>\n");
+
+ fclose(fd);
+ }
+
+ fd=fopen(mapfile,"wb");
+
+ fprintf(fd,"P6\n%u %u\n255\n",width,(kml?height:height+30));
+ fprintf(stdout,"\nWriting \"%s\" (%ux%u pixmap image)... ",mapfile,width,(kml?height:height+30));
+ fflush(stdout);
+
+ for (y=0, lat=north; y<(int)height; y++, lat=north-(dpp*(double)y))
+ {
+ for (x=0, lon=max_west; x<(int)width; x++, lon=max_west-(dpp*(double)x))
+ {
+ if (lon<0.0)
+ lon+=360.0;
+
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x0=(int)rint(ppd*(lat-(double)dem[indx].min_north));
+ y0=mpi-(int)rint(ppd*(LonDiff((double)dem[indx].max_west,lon)));
+
+ if (x0>=0 && x0<=mpi && y0>=0 && y0<=mpi)
+ found=1;
+ else
+ indx++;
+ }
+
+ if (found)
+ {
+ mask=dem[indx].mask[x0][y0];
+ signal=(dem[indx].signal[x0][y0])-100;
+ cityorcounty=0;
+
+ match=255;
+
+ red=0;
+ green=0;
+ blue=0;
+
+ if (signal>=region.level[0])
+ match=0;
+ else
+ {
+ for (z=1; (z<region.levels && match==255); z++)
+ {
+ if (signal<region.level[z-1] && signal>=region.level[z])
+ match=z;
+ }
+ }
+
+ if (match<region.levels)
+ {
+ red=region.color[match][0];
+ green=region.color[match][1];
+ blue=region.color[match][2];
+ }
+
+ if (mask&2)
+ {
+ /* Text Labels: Red or otherwise */
+
+ if (red>=180 && green<=75 && blue<=75)
+ fprintf(fd,"%c%c%c",255^red,255^green,255^blue);
+ else
+ fprintf(fd,"%c%c%c",255,0,0);
+
+ cityorcounty=1;
+ }
+
+ else if (mask&4)
+ {
+ /* County Boundaries: Black */
+
+ fprintf(fd,"%c%c%c",0,0,0);
+
+ cityorcounty=1;
+ }
+
+ if (cityorcounty==0)
+ {
+ if (contour_threshold!=0 && signal<contour_threshold)
+ {
+ if (ngs)
+ fprintf(fd,"%c%c%c",255,255,255);
else
{
- /* Elevation: Greyscale */
- output=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
- fprintf(fd,"%c%c%c",output,output,output);
+ /* Display land or sea elevation */
+
+ if (dem[indx].data[x0][y0]==0)
+ fprintf(fd,"%c%c%c",0,0,170);
+ else
+ {
+ terrain=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
+ fprintf(fd,"%c%c%c",terrain,terrain,terrain);
+ }
+ }
+ }
+
+ else
+ {
+ /* Plot field strength regions in color */
+
+ if (red!=0 || green!=0 || blue!=0)
+ fprintf(fd,"%c%c%c",red,green,blue);
+
+ else /* terrain / sea-level */
+ {
+ if (ngs)
+ fprintf(fd,"%c%c%c",255,255,255);
+ else
+ {
+ if (dem[indx].data[x0][y0]==0)
+ fprintf(fd,"%c%c%c",0,0,170);
+ else
+ {
+ /* Elevation: Greyscale */
+ terrain=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
+ fprintf(fd,"%c%c%c",terrain,terrain,terrain);
+ }
+ }
}
}
}
}
}
- /* Display legend along bottom of image */
+ if (kml==0 && geo==0)
+ {
+ /* Display legend along bottom of image
+ * if not generating .kml or .geo output.
+ */
- x0=width/16;
+ colorwidth=(int)rint((float)width/(float)region.levels);
- for (y0=0; y0<30; y0++)
- {
- for (indx=0; indx<16; indx++)
+ for (y0=0; y0<30; y0++)
{
- for (x=0; x<x0; x++)
+ for (x0=0; x0<(int)width; x0++)
{
- t=indx;
- t2=indx+8;
-
- if (y0>=10 && y0<=18)
- {
- if (t2>9)
- {
- if (x>=11 && x<=17)
- if (smallfont[t2/10][y0-10][x-11])
- t=255;
- }
-
- if (x>=19 && x<=25)
- if (smallfont[t2%10][y0-10][x-19])
- t=255;
-
- if (x>=27 && x<=33)
- if (smallfont[0][y0-10][x-27])
- t=255;
- }
-
- switch (t)
- {
- case 0:
- fprintf(fd,"%c%c%c",255,0,0);
- break;
-
- case 1:
- fprintf(fd,"%c%c%c",255,128,0);
- break;
+ indx=x0/colorwidth;
+ x=x0%colorwidth;
+ level=region.level[indx];
- case 2:
- fprintf(fd,"%c%c%c",255,165,0);
- break;
+ hundreds=level/100;
- case 3:
- fprintf(fd,"%c%c%c",255,206,0);
- break;
+ if (hundreds>0)
+ level-=(hundreds*100);
- case 4:
- fprintf(fd,"%c%c%c",255,255,0);
- break;
+ tens=level/10;
- case 5:
- fprintf(fd,"%c%c%c",184,255,0);
- break;
+ if (tens>0)
+ level-=(tens*10);
- case 6:
- fprintf(fd,"%c%c%c",0,255,0);
- break;
+ units=level;
- case 7:
- fprintf(fd,"%c%c%c",0,208,0);
- break;
+ if (y0>=8 && y0<=23)
+ {
+ if (hundreds>0)
+ {
+ if (x>=5 && x<=12)
+ if (fontdata[16*(hundreds+'0')+(y0-8)]&(128>>(x-5)))
+ indx=255;
+ }
- case 8:
- fprintf(fd,"%c%c%c",0,196,196);
- break;
+ if (tens>0 || hundreds>0)
+ {
+ if (x>=13 && x<=20)
+ if (fontdata[16*(tens+'0')+(y0-8)]&(128>>(x-13)))
+ indx=255;
+ }
+
+ if (x>=21 && x<=28)
+ if (fontdata[16*(units+'0')+(y0-8)]&(128>>(x-21)))
+ indx=255;
- case 9:
- fprintf(fd,"%c%c%c",0,148,255);
- break;
+ if (x>=36 && x<=43)
+ if (fontdata[16*('d')+(y0-8)]&(128>>(x-36)))
+ indx=255;
- case 10:
- fprintf(fd,"%c%c%c",80,80,255);
- break;
+ if (x>=44 && x<=51)
+ if (fontdata[16*('B')+(y0-8)]&(128>>(x-44)))
+ indx=255;
- case 11:
- fprintf(fd,"%c%c%c",0,38,255);
- break;
+ if (x>=52 && x<=59)
+ if (fontdata[16*(230)+(y0-8)]&(128>>(x-52)))
+ indx=255;
- case 12:
- fprintf(fd,"%c%c%c",142,63,255);
- break;
+ if (x>=60 && x<=67)
+ if (fontdata[16*('V')+(y0-8)]&(128>>(x-60)))
+ indx=255;
- case 13:
- fprintf(fd,"%c%c%c",196,54,255);
- break;
+ if (x>=68 && x<=75)
+ if (fontdata[16*('/')+(y0-8)]&(128>>(x-68)))
+ indx=255;
- case 14:
- fprintf(fd,"%c%c%c",255,0,255);
- break;
+ if (x>=76 && x<=83)
+ if (fontdata[16*('m')+(y0-8)]&(128>>(x-76)))
+ indx=255;
+ }
- case 255:
- /* Black */
+ if (indx>region.levels)
fprintf(fd,"%c%c%c",0,0,0);
- break;
+ else
+ {
+ red=region.color[indx][0];
+ green=region.color[indx][1];
+ blue=region.color[indx][2];
- default:
- fprintf(fd,"%c%c%c",255,194,204);
+ fprintf(fd,"%c%c%c",red,green,blue);
}
}
}
fflush(stdout);
}
-void GraphTerrain(struct site source, struct site destination, char *name)
+void WritePPMDBM(char *filename, unsigned char geo, unsigned char kml, unsigned char ngs, struct site *xmtr, unsigned char txsites)
{
- /* This function invokes gnuplot to generate an appropriate
- output file indicating the terrain profile between the source
- and destination locations. "filename" is the name assigned
- to the output file generated by gnuplot. The filename extension
- is used to set gnuplot's terminal setting and output file type.
- If no extension is found, .gif is assumed. */
+ /* This function generates a topographic map in Portable Pix Map
+ (PPM) format based on the signal power level values held in the
+ signal[][] array. The image created is rotated counter-clockwise
+ 90 degrees from its representation in dem[][] so that north
+ points up and east points right in the image generated. */
- int x, y, z;
- char filename[255], term[15], ext[15];
- FILE *fd=NULL;
+ char mapfile[255], geofile[255], kmlfile[255];
+ unsigned width, height, terrain, red, green, blue;
+ unsigned char found, mask, cityorcounty;
+ int indx, x, y, z=1, x0, y0, dBm, level, hundreds,
+ tens, units, match, colorwidth;
+ double conversion, one_over_gamma, lat, lon,
+ north, south, east, west, minwest;
+ FILE *fd;
- ReadPath(destination,source);
+ one_over_gamma=1.0/GAMMA;
+ conversion=255.0/pow((double)(max_elevation-min_elevation),one_over_gamma);
- fd=fopen("profile.gp","wb");
+ width=(unsigned)(ippd*ReduceAngle(max_west-min_west));
+ height=(unsigned)(ippd*ReduceAngle(max_north-min_north));
- for (x=0; x<path.length; x++)
- fprintf(fd,"%f\t%f\n",path.distance[x],path.elevation[x]);
+ LoadDBMColors(xmtr[0]);
- fclose(fd);
+ if (filename[0]==0)
+ {
+ strncpy(filename, xmtr[0].filename,254);
+ filename[strlen(filename)-4]=0; /* Remove .qth */
+ }
+
+ y=strlen(filename);
- if (name[0]==0)
+ if (y>4)
{
- /* Default filename and output file type */
+ if (filename[y-1]=='m' && filename[y-2]=='p' && filename[y-3]=='p' && filename[y-4]=='.')
+ y-=4;
+ }
- strncpy(filename,"profile\0",8);
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
+ for (x=0; x<y; x++)
+ {
+ mapfile[x]=filename[x];
+ geofile[x]=filename[x];
+ kmlfile[x]=filename[x];
}
+ mapfile[x]='.';
+ geofile[x]='.';
+ kmlfile[x]='.';
+ mapfile[x+1]='p';
+ geofile[x+1]='g';
+ kmlfile[x+1]='k';
+ mapfile[x+2]='p';
+ geofile[x+2]='e';
+ kmlfile[x+2]='m';
+ mapfile[x+3]='m';
+ geofile[x+3]='o';
+ kmlfile[x+3]='l';
+ mapfile[x+4]=0;
+ geofile[x+4]=0;
+ kmlfile[x+4]=0;
+
+ minwest=((double)min_west)+dpp;
+
+ if (minwest>360.0)
+ minwest-=360.0;
+
+ north=(double)max_north-dpp;
+
+ if (kml || geo)
+ south=(double)min_north; /* No bottom legend */
else
+ south=(double)min_north-(30.0/ppd); /* 30 pixels for bottom legend */
+
+ east=(minwest<180.0?-minwest:360.0-min_west);
+ west=(double)(max_west<180?-max_west:360-max_west);
+
+ if (geo && kml==0)
{
- /* Grab extension and terminal type from "name" */
+ fd=fopen(geofile,"wb");
- for (x=0; name[x]!='.' && name[x]!=0 && x<254; x++)
- filename[x]=name[x];
+ fprintf(fd,"FILENAME\t%s\n",mapfile);
+ fprintf(fd,"#\t\tX\tY\tLong\t\tLat\n");
+ fprintf(fd,"TIEPOINT\t0\t0\t%.3f\t\t%.3f\n",west,north);
- if (name[x]=='.')
- {
- for (y=0, z=x, x++; name[x]!=0 && x<254 && y<14; x++, y++)
- {
- term[y]=tolower(name[x]);
- ext[y]=term[y];
- }
+ fprintf(fd,"TIEPOINT\t%u\t%u\t%.3f\t\t%.3f\n",width-1,height-1,east,south);
+ fprintf(fd,"IMAGESIZE\t%u\t%u\n",width,height);
- ext[y]=0;
- term[y]=0;
- filename[z]=0;
- }
+ fprintf(fd,"#\n# Auto Generated by %s v%s\n#\n",splat_name,splat_version);
- else
- { /* No extension -- Default is gif */
+ fclose(fd);
+ }
- filename[x]=0;
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
+ if (kml && geo==0)
+ {
+ fd=fopen(kmlfile,"wb");
+
+ fprintf(fd,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+ fprintf(fd,"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n");
+ fprintf(fd,"<!-- Generated by %s Version %s -->\n",splat_name,splat_version);
+ fprintf(fd," <Folder>\n");
+ fprintf(fd," <name>%s</name>\n",splat_name);
+ fprintf(fd," <description>%s Transmitter Coverage Overlay</description>\n",xmtr[0].name);
+ fprintf(fd," <GroundOverlay>\n");
+ fprintf(fd," <name>SPLAT! Signal Power Level Overlay</name>\n");
+ fprintf(fd," <description>SPLAT! Coverage</description>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>%s</href>\n",mapfile);
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," <opacity>128</opacity>\n");
+ fprintf(fd," <LatLonBox>\n");
+ fprintf(fd," <north>%.5f</north>\n",north);
+ fprintf(fd," <south>%.5f</south>\n",south);
+ fprintf(fd," <east>%.5f</east>\n",east);
+ fprintf(fd," <west>%.5f</west>\n",west);
+ fprintf(fd," <rotation>0.0</rotation>\n");
+ fprintf(fd," </LatLonBox>\n");
+ fprintf(fd," </GroundOverlay>\n");
+
+ for (x=0; x<txsites; x++)
+ {
+ fprintf(fd," <Placemark>\n");
+ fprintf(fd," <name>%s</name>\n",xmtr[x].name);
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <IconStyle>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>root://icons/palette-5.png</href>\n");
+ fprintf(fd," <x>224</x>\n");
+ fprintf(fd," <y>224</y>\n");
+ fprintf(fd," <w>32</w>\n");
+ fprintf(fd," <h>32</h>\n");
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," </IconStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <Point>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>%f,%f,%f</coordinates>\n",(xmtr[x].lon<180.0?-xmtr[x].lon:360.0-xmtr[x].lon), xmtr[x].lat, xmtr[x].alt);
+ fprintf(fd," </Point>\n");
+ fprintf(fd," </Placemark>\n");
}
- }
- /* Either .ps or .postscript may be used
- as an extension for postscript output. */
+ fprintf(fd," </Folder>\n");
+ fprintf(fd,"</kml>\n");
- if (strncmp(term,"postscript",10)==0)
- strncpy(ext,"ps\0",3);
+ fclose(fd);
+ }
- else if (strncmp(ext,"ps",2)==0)
- strncpy(term,"postscript\0",11);
+ fd=fopen(mapfile,"wb");
- fprintf(stdout,"Writing \"%s.%s\"...",filename,ext);
+ fprintf(fd,"P6\n%u %u\n255\n",width,(kml?height:height+30));
+ fprintf(stdout,"\nWriting \"%s\" (%ux%u pixmap image)... ",mapfile,width,(kml?height:height+30));
fflush(stdout);
- fd=fopen("splat.gp","w");
- fprintf(fd,"set grid\n");
- fprintf(fd,"set autoscale\n");
- fprintf(fd,"set term %s\n",term);
- fprintf(fd,"set title \"SPLAT! Terrain Profile\"\n");
- fprintf(fd,"set xlabel \"Distance Between %s and %s (miles)\"\n",destination.name,source.name);
- fprintf(fd,"set ylabel \"Ground Elevation Above Sea Level (feet)\"\n");
- fprintf(fd,"set output \"%s.%s\"\n",filename,ext);
- fprintf(fd,"plot \"profile.gp\" title \"\" with lines\n");
- fclose(fd);
-
- x=system("gnuplot splat.gp");
-
- if (x!=-1)
+ for (y=0, lat=north; y<(int)height; y++, lat=north-(dpp*(double)y))
{
- unlink("splat.gp");
- unlink("profile.gp");
- fprintf(stdout," Done!\n");
- fflush(stdout);
- }
+ for (x=0, lon=max_west; x<(int)width; x++, lon=max_west-(dpp*(double)x))
+ {
+ if (lon<0.0)
+ lon+=360.0;
- else
- fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
-}
+ for (indx=0, found=0; indx<MAXPAGES && found==0;)
+ {
+ x0=(int)rint(ppd*(lat-(double)dem[indx].min_north));
+ y0=mpi-(int)rint(ppd*(LonDiff((double)dem[indx].max_west,lon)));
-void GraphElevation(struct site source, struct site destination, char *name)
-{
- /* This function invokes gnuplot to generate an appropriate
- output file indicating the terrain profile between the source
- and destination locations. "filename" is the name assigned
- to the output file generated by gnuplot. The filename extension
- is used to set gnuplot's terminal setting and output file type.
- If no extension is found, .gif is assumed. */
+ if (x0>=0 && x0<=mpi && y0>=0 && y0<=mpi)
+ found=1;
+ else
+ indx++;
+ }
+
+ if (found)
+ {
+ mask=dem[indx].mask[x0][y0];
+ dBm=(dem[indx].signal[x0][y0])-200;
+ cityorcounty=0;
+
+ match=255;
+
+ red=0;
+ green=0;
+ blue=0;
+
+ if (dBm>=region.level[0])
+ match=0;
+ else
+ {
+ for (z=1; (z<region.levels && match==255); z++)
+ {
+ if (dBm<region.level[z-1] && dBm>=region.level[z])
+ match=z;
+ }
+ }
+
+ if (match<region.levels)
+ {
+ red=region.color[match][0];
+ green=region.color[match][1];
+ blue=region.color[match][2];
+ }
+
+ if (mask&2)
+ {
+ /* Text Labels: Red or otherwise */
+
+ if (red>=180 && green<=75 && blue<=75 && dBm!=0)
+ fprintf(fd,"%c%c%c",255^red,255^green,255^blue);
+ else
+ fprintf(fd,"%c%c%c",255,0,0);
+
+ cityorcounty=1;
+ }
+
+ else if (mask&4)
+ {
+ /* County Boundaries: Black */
+
+ fprintf(fd,"%c%c%c",0,0,0);
+
+ cityorcounty=1;
+ }
+
+ if (cityorcounty==0)
+ {
+ if (contour_threshold!=0 && dBm<contour_threshold)
+ {
+ if (ngs) /* No terrain */
+ fprintf(fd,"%c%c%c",255,255,255);
+ else
+ {
+ /* Display land or sea elevation */
+
+ if (dem[indx].data[x0][y0]==0)
+ fprintf(fd,"%c%c%c",0,0,170);
+ else
+ {
+ terrain=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
+ fprintf(fd,"%c%c%c",terrain,terrain,terrain);
+ }
+ }
+ }
+
+ else
+ {
+ /* Plot signal power level regions in color */
+
+ if (red!=0 || green!=0 || blue!=0)
+ fprintf(fd,"%c%c%c",red,green,blue);
+
+ else /* terrain / sea-level */
+ {
+ if (ngs)
+ fprintf(fd,"%c%c%c",255,255,255);
+ else
+ {
+ if (dem[indx].data[x0][y0]==0)
+ fprintf(fd,"%c%c%c",0,0,170);
+ else
+ {
+ /* Elevation: Greyscale */
+ terrain=(unsigned)(0.5+pow((double)(dem[indx].data[x0][y0]-min_elevation),one_over_gamma)*conversion);
+ fprintf(fd,"%c%c%c",terrain,terrain,terrain);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ else
+ {
+ /* We should never get here, but if */
+ /* we do, display the region as black */
+
+ fprintf(fd,"%c%c%c",0,0,0);
+ }
+ }
+ }
+
+ if (kml==0 && geo==0)
+ {
+ /* Display legend along bottom of image
+ if not generating .kml or .geo output. */
+
+ colorwidth=(int)rint((float)width/(float)region.levels);
+
+ for (y0=0; y0<30; y0++)
+ {
+ for (x0=0; x0<(int)width; x0++)
+ {
+ indx=x0/colorwidth;
+ x=x0%colorwidth;
+
+ level=abs(region.level[indx]);
+
+ hundreds=level/100;
+
+ if (hundreds>0)
+ level-=(hundreds*100);
+
+ tens=level/10;
+
+ if (tens>0)
+ level-=(tens*10);
+
+ units=level;
+
+ if (y0>=8 && y0<=23)
+ {
+ if (hundreds>0)
+ {
+ if (region.level[indx]<0)
+ {
+ if (x>=5 && x<=12)
+ if (fontdata[16*('-')+(y0-8)]&(128>>(x-5)))
+ indx=255;
+ }
+
+ else
+ {
+ if (x>=5 && x<=12)
+ if (fontdata[16*('+')+(y0-8)]&(128>>(x-5)))
+ indx=255;
+ }
+
+ if (x>=13 && x<=20)
+ if (fontdata[16*(hundreds+'0')+(y0-8)]&(128>>(x-13)))
+ indx=255;
+ }
+
+ if (tens>0 || hundreds>0)
+ {
+ if (hundreds==0)
+ {
+ if (region.level[indx]<0)
+ {
+ if (x>=13 && x<=20)
+ if (fontdata[16*('-')+(y0-8)]&(128>>(x-13)))
+ indx=255;
+ }
+
+ else
+ {
+ if (x>=13 && x<=20)
+ if (fontdata[16*('+')+(y0-8)]&(128>>(x-13)))
+ indx=255;
+ }
+ }
+
+ if (x>=21 && x<=28)
+ if (fontdata[16*(tens+'0')+(y0-8)]&(128>>(x-21)))
+ indx=255;
+ }
+
+ if (hundreds==0 && tens==0)
+ {
+ if (region.level[indx]<0)
+ {
+ if (x>=21 && x<=28)
+ if (fontdata[16*('-')+(y0-8)]&(128>>(x-21)))
+ indx=255;
+ }
+
+ else
+ {
+ if (x>=21 && x<=28)
+ if (fontdata[16*('+')+(y0-8)]&(128>>(x-21)))
+ indx=255;
+ }
+ }
+
+ if (x>=29 && x<=36)
+ if (fontdata[16*(units+'0')+(y0-8)]&(128>>(x-29)))
+ indx=255;
+
+ if (x>=37 && x<=44)
+ if (fontdata[16*('d')+(y0-8)]&(128>>(x-37)))
+ indx=255;
+
+ if (x>=45 && x<=52)
+ if (fontdata[16*('B')+(y0-8)]&(128>>(x-45)))
+ indx=255;
+
+ if (x>=53 && x<=60)
+ if (fontdata[16*('m')+(y0-8)]&(128>>(x-53)))
+ indx=255;
+ }
+
+ if (indx>region.levels)
+ fprintf(fd,"%c%c%c",0,0,0);
+ else
+ {
+ red=region.color[indx][0];
+ green=region.color[indx][1];
+ blue=region.color[indx][2];
+
+ fprintf(fd,"%c%c%c",red,green,blue);
+ }
+ }
+ }
+ }
+
+ fclose(fd);
+ fprintf(stdout,"Done!\n");
+ fflush(stdout);
+}
+
+void GraphTerrain(struct site source, struct site destination, char *name)
+{
+ /* This function invokes gnuplot to generate an appropriate
+ output file indicating the terrain profile between the source
+ and destination locations when the -p command line option
+ is used. "basename" is the name assigned to the output
+ file generated by gnuplot. The filename extension is used
+ to set gnuplot's terminal setting and output file type.
+ If no extension is found, .png is assumed. */
+
+ int x, y, z;
+ char basename[255], term[30], ext[15];
+ double minheight=100000.0, maxheight=-100000.0;
+ FILE *fd=NULL, *fd1=NULL;
+
+ ReadPath(destination,source);
+
+ fd=fopen("profile.gp","wb");
+
+ if (clutter>0.0)
+ fd1=fopen("clutter.gp","wb");
+
+ for (x=0; x<path.length; x++)
+ {
+ if ((path.elevation[x]+clutter)>maxheight)
+ maxheight=path.elevation[x]+clutter;
+
+ if (path.elevation[x]<minheight)
+ minheight=path.elevation[x];
+
+ if (metric)
+ {
+ fprintf(fd,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*path.elevation[x]);
+
+ if (fd1!=NULL && x>0 && x<path.length-2)
+ fprintf(fd1,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*(path.elevation[x]==0.0?path.elevation[x]:(path.elevation[x]+clutter)));
+ }
+
+ else
+ {
+ fprintf(fd,"%f\t%f\n",path.distance[x],path.elevation[x]);
+
+ if (fd1!=NULL && x>0 && x<path.length-2)
+ fprintf(fd1,"%f\t%f\n",path.distance[x],(path.elevation[x]==0.0?path.elevation[x]:(path.elevation[x]+clutter)));
+ }
+ }
+
+ fclose(fd);
+
+ if (fd1!=NULL)
+ fclose(fd1);
+
+ if (name[0]=='.')
+ {
+ /* Default filename and output file type */
+
+ strncpy(basename,"profile\0",8);
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
+ }
+
+ else
+ {
+ /* Extract extension and terminal type from "name" */
+
+ ext[0]=0;
+ y=strlen(name);
+ strncpy(basename,name,254);
+
+ for (x=y-1; x>0 && name[x]!='.'; x--);
+
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ {
+ ext[z-(x+1)]=tolower(name[z]);
+ term[z-(x+1)]=name[z];
+ }
+
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ term[z-(x+1)]=0;
+ basename[x]=0;
+ }
+
+ if (ext[0]==0) /* No extension -- Default is png */
+ {
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
+ }
+ }
+
+ /* Either .ps or .postscript may be used
+ as an extension for postscript output. */
+
+ if (strncmp(term,"postscript",10)==0)
+ strncpy(ext,"ps\0",3);
+
+ else if (strncmp(ext,"ps",2)==0)
+ strncpy(term,"postscript enhanced color\0",26);
+
+ minheight-=(0.01*maxheight);
+
+ fd=fopen("splat.gp","w");
+ fprintf(fd,"set grid\n");
+ fprintf(fd,"set yrange [%2.3f to %2.3f]\n", metric?minheight*METERS_PER_FOOT:minheight, metric?maxheight*METERS_PER_FOOT:maxheight);
+ fprintf(fd,"set encoding iso_8859_1\n");
+ fprintf(fd,"set term %s\n",term);
+ fprintf(fd,"set title \"%s Terrain Profile Between %s and %s (%.2f%c Azimuth)\"\n",splat_name,destination.name, source.name, Azimuth(destination,source),176);
+
+ if (metric)
+ {
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f kilometers)\"\n",destination.name,source.name,KM_PER_MILE*Distance(source,destination));
+ fprintf(fd,"set ylabel \"Ground Elevation Above Sea Level (meters)\"\n");
+ }
+
+ else
+ {
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f miles)\"\n",destination.name,source.name,Distance(source,destination));
+ fprintf(fd,"set ylabel \"Ground Elevation Above Sea Level (feet)\"\n");
+ }
+
+ fprintf(fd,"set output \"%s.%s\"\n",basename,ext);
+
+ if (clutter>0.0)
+ {
+ if (metric)
+ fprintf(fd,"plot \"profile.gp\" title \"Terrain Profile\" with lines, \"clutter.gp\" title \"Clutter Profile (%.2f meters)\" with lines\n",clutter*METERS_PER_FOOT);
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"Terrain Profile\" with lines, \"clutter.gp\" title \"Clutter Profile (%.2f feet)\" with lines\n",clutter);
+ }
+
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"\" with lines\n");
+
+ fclose(fd);
+
+ x=system("gnuplot splat.gp");
+
+ if (x!=-1)
+ {
+ if (gpsav==0)
+ {
+ unlink("splat.gp");
+ unlink("profile.gp");
+ }
+
+ fprintf(stdout,"Terrain plot written to: \"%s.%s\"\n",basename,ext);
+ fflush(stdout);
+ }
+
+ else
+ fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
+}
+
+void GraphElevation(struct site source, struct site destination, char *name)
+{
+ /* This function invokes gnuplot to generate an appropriate
+ output file indicating the terrain elevation profile between
+ the source and destination locations when the -e command line
+ option is used. "basename" is the name assigned to the output
+ file generated by gnuplot. The filename extension is used
+ to set gnuplot's terminal setting and output file type.
+ If no extension is found, .png is assumed. */
+
+ int x, y, z;
+ char basename[255], term[30], ext[15];
+ double angle, clutter_angle=0.0, refangle, maxangle=-90.0,
+ minangle=90.0, distance;
+ struct site remote, remote2;
+ FILE *fd=NULL, *fd1=NULL, *fd2=NULL;
+
+ ReadPath(destination,source); /* destination=RX, source=TX */
+ refangle=ElevationAngle(destination,source);
+ distance=Distance(source,destination);
+
+ fd=fopen("profile.gp","wb");
+
+ if (clutter>0.0)
+ fd1=fopen("clutter.gp","wb");
+
+ fd2=fopen("reference.gp","wb");
+
+ for (x=1; x<path.length-1; x++)
+ {
+ remote.lat=path.lat[x];
+ remote.lon=path.lon[x];
+ remote.alt=0.0;
+ angle=ElevationAngle(destination,remote);
+
+ if (clutter>0.0)
+ {
+ remote2.lat=path.lat[x];
+ remote2.lon=path.lon[x];
+
+ if (path.elevation[x]!=0.0)
+ remote2.alt=clutter;
+ else
+ remote2.alt=0.0;
+
+ clutter_angle=ElevationAngle(destination,remote2);
+ }
+
+ if (metric)
+ {
+ fprintf(fd,"%f\t%f\n",KM_PER_MILE*path.distance[x],angle);
+
+ if (fd1!=NULL)
+ fprintf(fd1,"%f\t%f\n",KM_PER_MILE*path.distance[x],clutter_angle);
+
+ fprintf(fd2,"%f\t%f\n",KM_PER_MILE*path.distance[x],refangle);
+ }
+
+ else
+ {
+ fprintf(fd,"%f\t%f\n",path.distance[x],angle);
+
+ if (fd1!=NULL)
+ fprintf(fd1,"%f\t%f\n",path.distance[x],clutter_angle);
+
+ fprintf(fd2,"%f\t%f\n",path.distance[x],refangle);
+ }
+
+ if (angle>maxangle)
+ maxangle=angle;
+
+ if (clutter_angle>maxangle)
+ maxangle=clutter_angle;
+
+ if (angle<minangle)
+ minangle=angle;
+ }
+
+ if (metric)
+ {
+ fprintf(fd,"%f\t%f\n",KM_PER_MILE*path.distance[path.length-1],refangle);
+ fprintf(fd2,"%f\t%f\n",KM_PER_MILE*path.distance[path.length-1],refangle);
+ }
+
+ else
+ {
+ fprintf(fd,"%f\t%f\n",path.distance[path.length-1],refangle);
+ fprintf(fd2,"%f\t%f\n",path.distance[path.length-1],refangle);
+ }
+
+ fclose(fd);
+
+ if (fd1!=NULL)
+ fclose(fd1);
+
+ fclose(fd2);
+
+ if (name[0]=='.')
+ {
+ /* Default filename and output file type */
+
+ strncpy(basename,"profile\0",8);
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
+ }
+
+ else
+ {
+ /* Extract extension and terminal type from "name" */
+
+ ext[0]=0;
+ y=strlen(name);
+ strncpy(basename,name,254);
+
+ for (x=y-1; x>0 && name[x]!='.'; x--);
+
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ {
+ ext[z-(x+1)]=tolower(name[z]);
+ term[z-(x+1)]=name[z];
+ }
+
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ term[z-(x+1)]=0;
+ basename[x]=0;
+ }
+
+ if (ext[0]==0) /* No extension -- Default is png */
+ {
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
+ }
+ }
+
+ /* Either .ps or .postscript may be used
+ as an extension for postscript output. */
+
+ if (strncmp(term,"postscript",10)==0)
+ strncpy(ext,"ps\0",3);
+
+ else if (strncmp(ext,"ps",2)==0)
+ strncpy(term,"postscript enhanced color\0",26);
+
+ fd=fopen("splat.gp","w");
+
+ fprintf(fd,"set grid\n");
+
+ if (distance>2.0)
+ fprintf(fd,"set yrange [%2.3f to %2.3f]\n", (-fabs(refangle)-0.25), maxangle+0.25);
+ else
+ fprintf(fd,"set yrange [%2.3f to %2.3f]\n", minangle, refangle+(-minangle/8.0));
+
+ fprintf(fd,"set encoding iso_8859_1\n");
+ fprintf(fd,"set term %s\n",term);
+ fprintf(fd,"set title \"%s Elevation Profile Between %s and %s (%.2f%c azimuth)\"\n",splat_name,destination.name,source.name,Azimuth(destination,source),176);
+
+ if (metric)
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f kilometers)\"\n",destination.name,source.name,KM_PER_MILE*distance);
+ else
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f miles)\"\n",destination.name,source.name,distance);
+
+
+ fprintf(fd,"set ylabel \"Elevation Angle Along LOS Path Between\\n%s and %s (degrees)\"\n",destination.name,source.name);
+ fprintf(fd,"set output \"%s.%s\"\n",basename,ext);
+
+ if (clutter>0.0)
+ {
+ if (metric)
+ fprintf(fd,"plot \"profile.gp\" title \"Real Earth Profile\" with lines, \"clutter.gp\" title \"Clutter Profile (%.2f meters)\" with lines, \"reference.gp\" title \"Line of Sight Path (%.2f%c elevation)\" with lines\n",clutter*METERS_PER_FOOT,refangle,176);
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"Real Earth Profile\" with lines, \"clutter.gp\" title \"Clutter Profile (%.2f feet)\" with lines, \"reference.gp\" title \"Line of Sight Path (%.2f%c elevation)\" with lines\n",clutter,refangle,176);
+ }
+
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"Real Earth Profile\" with lines, \"reference.gp\" title \"Line of Sight Path (%.2f%c elevation)\" with lines\n",refangle,176);
+
+ fclose(fd);
+
+ x=system("gnuplot splat.gp");
+
+ if (x!=-1)
+ {
+ if (gpsav==0)
+ {
+ unlink("splat.gp");
+ unlink("profile.gp");
+ unlink("reference.gp");
+
+ if (clutter>0.0)
+ unlink("clutter.gp");
+ }
+
+ fprintf(stdout,"Elevation plot written to: \"%s.%s\"\n",basename,ext);
+ fflush(stdout);
+ }
+
+ else
+ fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
+}
+
+void GraphHeight(struct site source, struct site destination, char *name, unsigned char fresnel_plot, unsigned char normalized)
+{
+ /* This function invokes gnuplot to generate an appropriate
+ output file indicating the terrain height profile between
+ the source and destination locations referenced to the
+ line-of-sight path between the receive and transmit sites
+ when the -h or -H command line option is used. "basename"
+ is the name assigned to the output file generated by gnuplot.
+ The filename extension is used to set gnuplot's terminal
+ setting and output file type. If no extension is found,
+ .png is assumed. */
+
+ int x, y, z;
+ char basename[255], term[30], ext[15];
+ double a, b, c, height=0.0, refangle, cangle, maxheight=-100000.0,
+ minheight=100000.0, lambda=0.0, f_zone=0.0, fpt6_zone=0.0,
+ nm=0.0, nb=0.0, ed=0.0, es=0.0, r=0.0, d=0.0, d1=0.0,
+ terrain, azimuth, distance, dheight=0.0, minterrain=100000.0,
+ minearth=100000.0, miny, maxy, min2y, max2y;
+ struct site remote;
+ FILE *fd=NULL, *fd1=NULL, *fd2=NULL, *fd3=NULL, *fd4=NULL, *fd5=NULL;
+
+ ReadPath(destination,source); /* destination=RX, source=TX */
+ azimuth=Azimuth(destination,source);
+ distance=Distance(destination,source);
+ refangle=ElevationAngle(destination,source);
+ b=GetElevation(destination)+destination.alt+earthradius;
+
+ /* Wavelength and path distance (great circle) in feet. */
+
+ if (fresnel_plot)
+ {
+ lambda=9.8425e8/(LR.frq_mhz*1e6);
+ d=5280.0*path.distance[path.length-1];
+ }
+
+ if (normalized)
+ {
+ ed=GetElevation(destination);
+ es=GetElevation(source);
+ nb=-destination.alt-ed;
+ nm=(-source.alt-es-nb)/(path.distance[path.length-1]);
+ }
+
+ fd=fopen("profile.gp","wb");
+
+ if (clutter>0.0)
+ fd1=fopen("clutter.gp","wb");
+
+ fd2=fopen("reference.gp","wb");
+ fd5=fopen("curvature.gp", "wb");
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ fd3=fopen("fresnel.gp", "wb");
+ fd4=fopen("fresnel_pt_6.gp", "wb");
+ }
+
+ for (x=0; x<path.length-1; x++)
+ {
+ remote.lat=path.lat[x];
+ remote.lon=path.lon[x];
+ remote.alt=0.0;
+
+ terrain=GetElevation(remote);
+
+ if (x==0)
+ terrain+=destination.alt; /* RX antenna spike */
+
+ a=terrain+earthradius;
+ cangle=5280.0*Distance(destination,remote)/earthradius;
+ c=b*sin(refangle*DEG2RAD+HALFPI)/sin(HALFPI-refangle*DEG2RAD-cangle);
+
+ height=a-c;
+
+ /* Per Fink and Christiansen, Electronics
+ * Engineers' Handbook, 1989:
+ *
+ * H = sqrt(lamba * d1 * (d - d1)/d)
+ *
+ * where H is the distance from the LOS
+ * path to the first Fresnel zone boundary.
+ */
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ d1=5280.0*path.distance[x];
+ f_zone=-1.0*sqrt(lambda*d1*(d-d1)/d);
+ fpt6_zone=f_zone*fzone_clearance;
+ }
+
+ if (normalized)
+ {
+ r=-(nm*path.distance[x])-nb;
+ height+=r;
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ f_zone+=r;
+ fpt6_zone+=r;
+ }
+ }
+
+ else
+ r=0.0;
+
+ if (metric)
+ {
+ fprintf(fd,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*height);
+
+ if (fd1!=NULL && x>0 && x<path.length-2)
+ fprintf(fd1,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*(terrain==0.0?height:(height+clutter)));
+
+ fprintf(fd2,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*r);
+ fprintf(fd5,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*(height-terrain));
+ }
+
+ else
+ {
+ fprintf(fd,"%f\t%f\n",path.distance[x],height);
+
+ if (fd1!=NULL && x>0 && x<path.length-2)
+ fprintf(fd1,"%f\t%f\n",path.distance[x],(terrain==0.0?height:(height+clutter)));
+
+ fprintf(fd2,"%f\t%f\n",path.distance[x],r);
+ fprintf(fd5,"%f\t%f\n",path.distance[x],height-terrain);
+ }
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ if (metric)
+ {
+ fprintf(fd3,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*f_zone);
+ fprintf(fd4,"%f\t%f\n",KM_PER_MILE*path.distance[x],METERS_PER_FOOT*fpt6_zone);
+ }
+
+ else
+ {
+ fprintf(fd3,"%f\t%f\n",path.distance[x],f_zone);
+ fprintf(fd4,"%f\t%f\n",path.distance[x],fpt6_zone);
+ }
+
+ if (f_zone<minheight)
+ minheight=f_zone;
+ }
+
+ if ((height+clutter)>maxheight)
+ maxheight=height+clutter;
+
+ if (height<minheight)
+ minheight=height;
+
+ if (r>maxheight)
+ maxheight=r;
+
+ if (terrain<minterrain)
+ minterrain=terrain;
+
+ if ((height-terrain)<minearth)
+ minearth=height-terrain;
+ }
+
+ if (normalized)
+ r=-(nm*path.distance[path.length-1])-nb;
+ else
+ r=0.0;
+
+ if (metric)
+ {
+ fprintf(fd,"%f\t%f\n",KM_PER_MILE*path.distance[path.length-1],METERS_PER_FOOT*r);
+ fprintf(fd2,"%f\t%f\n",KM_PER_MILE*path.distance[path.length-1],METERS_PER_FOOT*r);
+ }
+
+ else
+ {
+ fprintf(fd,"%f\t%f\n",path.distance[path.length-1],r);
+ fprintf(fd2,"%f\t%f\n",path.distance[path.length-1],r);
+ }
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ if (metric)
+ {
+ fprintf(fd3,"%f\t%f\n",KM_PER_MILE*path.distance[path.length-1],METERS_PER_FOOT*r);
+ fprintf(fd4,"%f\t%f\n",KM_PER_MILE*path.distance[path.length-1],METERS_PER_FOOT*r);
+ }
+
+ else
+ {
+ fprintf(fd3,"%f\t%f\n",path.distance[path.length-1],r);
+ fprintf(fd4,"%f\t%f\n",path.distance[path.length-1],r);
+ }
+ }
+
+ if (r>maxheight)
+ maxheight=r;
+
+ if (r<minheight)
+ minheight=r;
+
+ fclose(fd);
+
+ if (fd1!=NULL)
+ fclose(fd1);
+
+ fclose(fd2);
+ fclose(fd5);
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ fclose(fd3);
+ fclose(fd4);
+ }
+
+ if (name[0]=='.')
+ {
+ /* Default filename and output file type */
+
+ strncpy(basename,"profile\0",8);
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
+ }
+
+ else
+ {
+ /* Extract extension and terminal type from "name" */
+
+ ext[0]=0;
+ y=strlen(name);
+ strncpy(basename,name,254);
+
+ for (x=y-1; x>0 && name[x]!='.'; x--);
+
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ {
+ ext[z-(x+1)]=tolower(name[z]);
+ term[z-(x+1)]=name[z];
+ }
+
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ term[z-(x+1)]=0;
+ basename[x]=0;
+ }
+
+ if (ext[0]==0) /* No extension -- Default is png */
+ {
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
+ }
+ }
+
+ /* Either .ps or .postscript may be used
+ as an extension for postscript output. */
+
+ if (strncmp(term,"postscript",10)==0)
+ strncpy(ext,"ps\0",3);
+
+ else if (strncmp(ext,"ps",2)==0)
+ strncpy(term,"postscript enhanced color\0",26);
+
+ fd=fopen("splat.gp","w");
+
+ dheight=maxheight-minheight;
+ miny=minheight-0.15*dheight;
+ maxy=maxheight+0.05*dheight;
+
+ if (maxy<20.0)
+ maxy=20.0;
+
+ dheight=maxheight-minheight;
+ min2y=miny-minterrain+0.05*dheight;
+
+ if (minearth<min2y)
+ {
+ miny-=min2y-minearth+0.05*dheight;
+ min2y=minearth-0.05*dheight;
+ }
+
+ max2y=min2y+maxy-miny;
+
+ fprintf(fd,"set grid\n");
+ fprintf(fd,"set yrange [%2.3f to %2.3f]\n", metric?miny*METERS_PER_FOOT:miny, metric?maxy*METERS_PER_FOOT:maxy);
+ fprintf(fd,"set y2range [%2.3f to %2.3f]\n", metric?min2y*METERS_PER_FOOT:min2y, metric?max2y*METERS_PER_FOOT:max2y);
+ fprintf(fd,"set xrange [-0.5 to %2.3f]\n",metric?KM_PER_MILE*rint(distance+0.5):rint(distance+0.5));
+ fprintf(fd,"set encoding iso_8859_1\n");
+ fprintf(fd,"set term %s\n",term);
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ fprintf(fd,"set title \"%s Path Profile Between %s and %s (%.2f%c azimuth)\\nWith First Fresnel Zone\"\n",splat_name, destination.name, source.name, azimuth,176);
+
+ else
+ fprintf(fd,"set title \"%s Height Profile Between %s and %s (%.2f%c azimuth)\"\n",splat_name, destination.name, source.name, azimuth,176);
+
+ if (metric)
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f kilometers)\"\n",destination.name,source.name,KM_PER_MILE*Distance(source,destination));
+ else
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f miles)\"\n",destination.name,source.name,Distance(source,destination));
+
+ if (normalized)
+ {
+ if (metric)
+ fprintf(fd,"set ylabel \"Normalized Height Referenced To LOS Path Between\\n%s and %s (meters)\"\n",destination.name,source.name);
+
+ else
+ fprintf(fd,"set ylabel \"Normalized Height Referenced To LOS Path Between\\n%s and %s (feet)\"\n",destination.name,source.name);
+
+ }
+
+ else
+ {
+ if (metric)
+ fprintf(fd,"set ylabel \"Height Referenced To LOS Path Between\\n%s and %s (meters)\"\n",destination.name,source.name);
+
+ else
+ fprintf(fd,"set ylabel \"Height Referenced To LOS Path Between\\n%s and %s (feet)\"\n",destination.name,source.name);
+ }
+
+ fprintf(fd,"set output \"%s.%s\"\n",basename,ext);
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ if (clutter>0.0)
+ {
+ if (metric)
+ fprintf(fd,"plot \"profile.gp\" title \"Point-to-Point Profile\" with lines, \"clutter.gp\" title \"Ground Clutter (%.2f meters)\" with lines, \"reference.gp\" title \"Line of Sight Path\" with lines, \"curvature.gp\" axes x1y2 title \"Earth's Curvature Contour\" with lines, \"fresnel.gp\" axes x1y1 title \"First Fresnel Zone (%.3f MHz)\" with lines, \"fresnel_pt_6.gp\" title \"%.0f%% of First Fresnel Zone\" with lines\n",clutter*METERS_PER_FOOT,LR.frq_mhz,fzone_clearance*100.0);
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"Point-to-Point Profile\" with lines, \"clutter.gp\" title \"Ground Clutter (%.2f feet)\" with lines, \"reference.gp\" title \"Line of Sight Path\" with lines, \"curvature.gp\" axes x1y2 title \"Earth's Curvature Contour\" with lines, \"fresnel.gp\" axes x1y1 title \"First Fresnel Zone (%.3f MHz)\" with lines, \"fresnel_pt_6.gp\" title \"%.0f%% of First Fresnel Zone\" with lines\n",clutter,LR.frq_mhz,fzone_clearance*100.0);
+ }
+
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"Point-to-Point Profile\" with lines, \"reference.gp\" title \"Line of Sight Path\" with lines, \"curvature.gp\" axes x1y2 title \"Earth's Curvature Contour\" with lines, \"fresnel.gp\" axes x1y1 title \"First Fresnel Zone (%.3f MHz)\" with lines, \"fresnel_pt_6.gp\" title \"%.0f%% of First Fresnel Zone\" with lines\n",LR.frq_mhz,fzone_clearance*100.0);
+ }
+
+ else
+ {
+ if (clutter>0.0)
+ {
+ if (metric)
+ fprintf(fd,"plot \"profile.gp\" title \"Point-to-Point Profile\" with lines, \"clutter.gp\" title \"Ground Clutter (%.2f meters)\" with lines, \"reference.gp\" title \"Line Of Sight Path\" with lines, \"curvature.gp\" axes x1y2 title \"Earth's Curvature Contour\" with lines\n",clutter*METERS_PER_FOOT);
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"Point-to-Point Profile\" with lines, \"clutter.gp\" title \"Ground Clutter (%.2f feet)\" with lines, \"reference.gp\" title \"Line Of Sight Path\" with lines, \"curvature.gp\" axes x1y2 title \"Earth's Curvature Contour\" with lines\n",clutter);
+ }
+
+ else
+ fprintf(fd,"plot \"profile.gp\" title \"Point-to-Point Profile\" with lines, \"reference.gp\" title \"Line Of Sight Path\" with lines, \"curvature.gp\" axes x1y2 title \"Earth's Curvature Contour\" with lines\n");
+
+ }
+
+ fclose(fd);
+
+ x=system("gnuplot splat.gp");
+
+ if (x!=-1)
+ {
+ if (gpsav==0)
+ {
+ unlink("splat.gp");
+ unlink("profile.gp");
+ unlink("reference.gp");
+ unlink("curvature.gp");
+
+ if (fd1!=NULL)
+ unlink("clutter.gp");
+
+ if ((LR.frq_mhz>=20.0) && (LR.frq_mhz<=20000.0) && fresnel_plot)
+ {
+ unlink("fresnel.gp");
+ unlink("fresnel_pt_6.gp");
+ }
+ }
+
+ fprintf(stdout,"\nHeight plot written to: \"%s.%s\"",basename,ext);
+ fflush(stdout);
+ }
+
+ else
+ fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
+}
+
+void ObstructionAnalysis(struct site xmtr, struct site rcvr, double f, FILE *outfile)
+{
+ /* Perform an obstruction analysis along the
+ path between receiver and transmitter. */
+
+ int x;
+ struct site site_x;
+ double h_r, h_t, h_x, h_r_orig, cos_tx_angle, cos_test_angle,
+ cos_tx_angle_f1, cos_tx_angle_fpt6, d_tx, d_x,
+ h_r_f1, h_r_fpt6, h_f, h_los, lambda=0.0;
+ char string[255], string_fpt6[255], string_f1[255];
+
+ ReadPath(xmtr,rcvr);
+ h_r=GetElevation(rcvr)+rcvr.alt+earthradius;
+ h_r_f1=h_r;
+ h_r_fpt6=h_r;
+ h_r_orig=h_r;
+ h_t=GetElevation(xmtr)+xmtr.alt+earthradius;
+ d_tx=5280.0*Distance(rcvr,xmtr);
+ cos_tx_angle=((h_r*h_r)+(d_tx*d_tx)-(h_t*h_t))/(2.0*h_r*d_tx);
+ cos_tx_angle_f1=cos_tx_angle;
+ cos_tx_angle_fpt6=cos_tx_angle;
+
+ if (f)
+ lambda=9.8425e8/(f*1e6);
+
+ if (clutter>0.0)
+ {
+ fprintf(outfile,"Terrain has been raised by");
+
+ if (metric)
+ fprintf(outfile," %.2f meters",METERS_PER_FOOT*clutter);
+ else
+ fprintf(outfile," %.2f feet",clutter);
+
+ fprintf(outfile," to account for ground clutter.\n\n");
+ }
+
+ /* At each point along the path calculate the cosine
+ of a sort of "inverse elevation angle" at the receiver.
+ From the antenna, 0 deg. looks at the ground, and 90 deg.
+ is parallel to the ground.
+
+ Start at the receiver. If this is the lowest antenna,
+ then terrain obstructions will be nearest to it. (Plus,
+ that's the way SPLAT!'s original los() did it.)
+
+ Calculate cosines only. That's sufficient to compare
+ angles and it saves the extra computational burden of
+ acos(). However, note the inverted comparison: if
+ acos(A) > acos(B), then B > A. */
+
+ for (x=path.length-1; x>0; x--)
+ {
+ site_x.lat=path.lat[x];
+ site_x.lon=path.lon[x];
+ site_x.alt=0.0;
+
+ h_x=GetElevation(site_x)+earthradius+clutter;
+ d_x=5280.0*Distance(rcvr,site_x);
+
+ /* Deal with the LOS path first. */
+
+ cos_test_angle=((h_r*h_r)+(d_x*d_x)-(h_x*h_x))/(2.0*h_r*d_x);
+
+ if (cos_tx_angle>cos_test_angle)
+ {
+ if (h_r==h_r_orig)
+ fprintf(outfile,"Between %s and %s, %s detected obstructions at:\n\n",rcvr.name,xmtr.name,splat_name);
+
+ if (site_x.lat>=0.0)
+ {
+ if (metric)
+ fprintf(outfile," %8.4f N,%9.4f W, %5.2f kilometers, %6.2f meters AMSL\n",site_x.lat, site_x.lon, KM_PER_MILE*(d_x/5280.0), METERS_PER_FOOT*(h_x-earthradius));
+ else
+ fprintf(outfile," %8.4f N,%9.4f W, %5.2f miles, %6.2f feet AMSL\n",site_x.lat, site_x.lon, d_x/5280.0, h_x-earthradius);
+ }
+
+ else
+ {
+ if (metric)
+ fprintf(outfile," %8.4f S,%9.4f W, %5.2f kilometers, %6.2f meters AMSL\n",-site_x.lat, site_x.lon, KM_PER_MILE*(d_x/5280.0), METERS_PER_FOOT*(h_x-earthradius));
+ else
+
+ fprintf(outfile," %8.4f S,%9.4f W, %5.2f miles, %6.2f feet AMSL\n",-site_x.lat, site_x.lon, d_x/5280.0, h_x-earthradius);
+ }
+ }
+
+ while (cos_tx_angle>cos_test_angle)
+ {
+ h_r+=1;
+ cos_test_angle=((h_r*h_r)+(d_x*d_x)-(h_x*h_x))/(2.0*h_r*d_x);
+ cos_tx_angle=((h_r*h_r)+(d_tx*d_tx)-(h_t*h_t))/(2.0*h_r*d_tx);
+ }
+
+ if (f)
+ {
+ /* Now clear the first Fresnel zone... */
+
+ cos_tx_angle_f1=((h_r_f1*h_r_f1)+(d_tx*d_tx)-(h_t*h_t))/(2.0*h_r_f1*d_tx);
+ h_los=sqrt(h_r_f1*h_r_f1+d_x*d_x-2*h_r_f1*d_x*cos_tx_angle_f1);
+ h_f=h_los-sqrt(lambda*d_x*(d_tx-d_x)/d_tx);
+
+ while (h_f<h_x)
+ {
+ h_r_f1+=1;
+ cos_tx_angle_f1=((h_r_f1*h_r_f1)+(d_tx*d_tx)-(h_t*h_t))/(2.0*h_r_f1*d_tx);
+ h_los=sqrt(h_r_f1*h_r_f1+d_x*d_x-2*h_r_f1*d_x*cos_tx_angle_f1);
+ h_f=h_los-sqrt(lambda*d_x*(d_tx-d_x)/d_tx);
+ }
+
+ /* and clear the 60% F1 zone. */
+
+ cos_tx_angle_fpt6=((h_r_fpt6*h_r_fpt6)+(d_tx*d_tx)-(h_t*h_t))/(2.0*h_r_fpt6*d_tx);
+ h_los=sqrt(h_r_fpt6*h_r_fpt6+d_x*d_x-2*h_r_fpt6*d_x*cos_tx_angle_fpt6);
+ h_f=h_los-fzone_clearance*sqrt(lambda*d_x*(d_tx-d_x)/d_tx);
+
+ while (h_f<h_x)
+ {
+ h_r_fpt6+=1;
+ cos_tx_angle_fpt6=((h_r_fpt6*h_r_fpt6)+(d_tx*d_tx)-(h_t*h_t))/(2.0*h_r_fpt6*d_tx);
+ h_los=sqrt(h_r_fpt6*h_r_fpt6+d_x*d_x-2*h_r_fpt6*d_x*cos_tx_angle_fpt6);
+ h_f=h_los-fzone_clearance*sqrt(lambda*d_x*(d_tx-d_x)/d_tx);
+ }
+ }
+ }
+
+ if (h_r>h_r_orig)
+ {
+ if (metric)
+ snprintf(string,150,"\nAntenna at %s must be raised to at least %.2f meters AGL\nto clear all obstructions detected by %s.\n",rcvr.name, METERS_PER_FOOT*(h_r-GetElevation(rcvr)-earthradius),splat_name);
+ else
+ snprintf(string,150,"\nAntenna at %s must be raised to at least %.2f feet AGL\nto clear all obstructions detected by %s.\n",rcvr.name, h_r-GetElevation(rcvr)-earthradius,splat_name);
+ }
+
+ else
+ snprintf(string,150,"\nNo obstructions to LOS path due to terrain were detected by %s\n",splat_name);
+
+ if (f)
+ {
+ if (h_r_fpt6>h_r_orig)
+ {
+ if (metric)
+ snprintf(string_fpt6,150,"\nAntenna at %s must be raised to at least %.2f meters AGL\nto clear %.0f%c of the first Fresnel zone.\n",rcvr.name, METERS_PER_FOOT*(h_r_fpt6-GetElevation(rcvr)-earthradius),fzone_clearance*100.0,37);
+
+ else
+ snprintf(string_fpt6,150,"\nAntenna at %s must be raised to at least %.2f feet AGL\nto clear %.0f%c of the first Fresnel zone.\n",rcvr.name, h_r_fpt6-GetElevation(rcvr)-earthradius,fzone_clearance*100.0,37);
+ }
+
+ else
+ snprintf(string_fpt6,150,"\n%.0f%c of the first Fresnel zone is clear.\n",fzone_clearance*100.0,37);
+
+ if (h_r_f1>h_r_orig)
+ {
+ if (metric)
+ snprintf(string_f1,150,"\nAntenna at %s must be raised to at least %.2f meters AGL\nto clear the first Fresnel zone.\n",rcvr.name, METERS_PER_FOOT*(h_r_f1-GetElevation(rcvr)-earthradius));
+
+ else
+ snprintf(string_f1,150,"\nAntenna at %s must be raised to at least %.2f feet AGL\nto clear the first Fresnel zone.\n",rcvr.name, h_r_f1-GetElevation(rcvr)-earthradius);
+
+ }
+
+ else
+ snprintf(string_f1,150,"\nThe first Fresnel zone is clear.\n");
+ }
+
+ fprintf(outfile,"%s",string);
+
+ if (f)
+ {
+ fprintf(outfile,"%s",string_f1);
+ fprintf(outfile,"%s",string_fpt6);
+ }
+}
+
+void PathReport(struct site source, struct site destination, char *name, char graph_it)
+{
+ /* This function writes a SPLAT! Path Report (name.txt) to
+ the filesystem. If (graph_it == 1), then gnuplot is invoked
+ to generate an appropriate output file indicating the Longley-Rice
+ model loss between the source and destination locations.
+ "filename" is the name assigned to the output file generated
+ by gnuplot. The filename extension is used to set gnuplot's
+ terminal setting and output file type. If no extension is
+ found, .png is assumed. */
+
+ int x, y, z, errnum;
+ char basename[255], term[30], ext[15], strmode[100],
+ report_name[80], block=0;
+ double maxloss=-100000.0, minloss=100000.0, loss, haavt,
+ angle1, angle2, azimuth, pattern=1.0, patterndB=0.0,
+ total_loss=0.0, cos_xmtr_angle, cos_test_angle=0.0,
+ source_alt, test_alt, dest_alt, source_alt2, dest_alt2,
+ distance, elevation, four_thirds_earth, field_strength,
+ free_space_loss=0.0, eirp=0.0, voltage, rxp, dBm,
+ power_density;
+ FILE *fd=NULL, *fd2=NULL;
+
+ sprintf(report_name,"%s-to-%s.txt",source.name,destination.name);
+
+ four_thirds_earth=FOUR_THIRDS*EARTHRADIUS;
+
+ for (x=0; report_name[x]!=0; x++)
+ if (report_name[x]==32 || report_name[x]==17 || report_name[x]==92 || report_name[x]==42 || report_name[x]==47)
+ report_name[x]='_';
+
+ fd2=fopen(report_name,"w");
+
+ fprintf(fd2,"\n\t\t--==[ %s v%s Path Analysis ]==--\n\n",splat_name,splat_version);
+ fprintf(fd2,"%s\n\n",dashes);
+ fprintf(fd2,"Transmitter site: %s\n",source.name);
+
+ if (source.lat>=0.0)
+ {
+ fprintf(fd2,"Site location: %.4f North / %.4f West",source.lat, source.lon);
+ fprintf(fd2, " (%s N / ", dec2dms(source.lat));
+ }
+
+ else
+ {
+
+ fprintf(fd2,"Site location: %.4f South / %.4f West",-source.lat, source.lon);
+ fprintf(fd2, " (%s S / ", dec2dms(source.lat));
+ }
+
+ fprintf(fd2, "%s W)\n", dec2dms(source.lon));
+
+ if (metric)
+ {
+ fprintf(fd2,"Ground elevation: %.2f meters AMSL\n",METERS_PER_FOOT*GetElevation(source));
+ fprintf(fd2,"Antenna height: %.2f meters AGL / %.2f meters AMSL\n",METERS_PER_FOOT*source.alt,METERS_PER_FOOT*(source.alt+GetElevation(source)));
+ }
+
+ else
+ {
+ fprintf(fd2,"Ground elevation: %.2f feet AMSL\n",GetElevation(source));
+ fprintf(fd2,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",source.alt, source.alt+GetElevation(source));
+ }
+
+ haavt=haat(source);
+
+ if (haavt>-4999.0)
+ {
+ if (metric)
+ fprintf(fd2,"Antenna height above average terrain: %.2f meters\n",METERS_PER_FOOT*haavt);
+ else
+ fprintf(fd2,"Antenna height above average terrain: %.2f feet\n",haavt);
+ }
+
+ azimuth=Azimuth(source,destination);
+ angle1=ElevationAngle(source,destination);
+ angle2=ElevationAngle2(source,destination,earthradius);
+
+ if (got_azimuth_pattern || got_elevation_pattern)
+ {
+ x=(int)rint(10.0*(10.0-angle2));
+
+ if (x>=0 && x<=1000)
+ pattern=(double)LR.antenna_pattern[(int)rint(azimuth)][x];
+
+ patterndB=20.0*log10(pattern);
+ }
+
+ if (metric)
+ fprintf(fd2,"Distance to %s: %.2f kilometers\n",destination.name,KM_PER_MILE*Distance(source,destination));
+
+ else
+ fprintf(fd2,"Distance to %s: %.2f miles\n",destination.name,Distance(source,destination));
+
+ fprintf(fd2,"Azimuth to %s: %.2f degrees\n",destination.name,azimuth);
+
+ if (angle1>=0.0)
+ fprintf(fd2,"Elevation angle to %s: %+.4f degrees\n",destination.name,angle1);
+
+ else
+ fprintf(fd2,"Depression angle to %s: %+.4f degrees\n",destination.name,angle1);
+
+ if ((angle2-angle1)>0.0001)
+ {
+ if (angle2<0.0)
+ fprintf(fd2,"Depression");
+ else
+ fprintf(fd2,"Elevation");
+
+ fprintf(fd2," angle to the first obstruction: %+.4f degrees\n",angle2);
+ }
+
+ fprintf(fd2,"\n%s\n\n",dashes);
+
+ /* Receiver */
+
+ fprintf(fd2,"Receiver site: %s\n",destination.name);
+
+ if (destination.lat>=0.0)
+ {
+ fprintf(fd2,"Site location: %.4f North / %.4f West",destination.lat, destination.lon);
+ fprintf(fd2, " (%s N / ", dec2dms(destination.lat));
+ }
+
+ else
+ {
+ fprintf(fd2,"Site location: %.4f South / %.4f West",-destination.lat, destination.lon);
+ fprintf(fd2, " (%s S / ", dec2dms(destination.lat));
+ }
+
+ fprintf(fd2, "%s W)\n", dec2dms(destination.lon));
+
+ if (metric)
+ {
+ fprintf(fd2,"Ground elevation: %.2f meters AMSL\n",METERS_PER_FOOT*GetElevation(destination));
+ fprintf(fd2,"Antenna height: %.2f meters AGL / %.2f meters AMSL\n",METERS_PER_FOOT*destination.alt, METERS_PER_FOOT*(destination.alt+GetElevation(destination)));
+ }
+
+ else
+ {
+ fprintf(fd2,"Ground elevation: %.2f feet AMSL\n",GetElevation(destination));
+ fprintf(fd2,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",destination.alt, destination.alt+GetElevation(destination));
+ }
+
+ haavt=haat(destination);
+
+ if (haavt>-4999.0)
+ {
+ if (metric)
+ fprintf(fd2,"Antenna height above average terrain: %.2f meters\n",METERS_PER_FOOT*haavt);
+ else
+ fprintf(fd2,"Antenna height above average terrain: %.2f feet\n",haavt);
+ }
+
+ if (metric)
+ fprintf(fd2,"Distance to %s: %.2f kilometers\n",source.name,KM_PER_MILE*Distance(source,destination));
+
+ else
+ fprintf(fd2,"Distance to %s: %.2f miles\n",source.name,Distance(source,destination));
+
+ azimuth=Azimuth(destination,source);
+
+ angle1=ElevationAngle(destination,source);
+ angle2=ElevationAngle2(destination,source,earthradius);
+
+ fprintf(fd2,"Azimuth to %s: %.2f degrees\n",source.name,azimuth);
+
+ if (angle1>=0.0)
+ fprintf(fd2,"Elevation angle to %s: %+.4f degrees\n",source.name,angle1);
+
+ else
+ fprintf(fd2,"Depression angle to %s: %+.4f degrees\n",source.name,angle1);
+
+ if ((angle2-angle1)>0.0001)
+ {
+ if (angle2<0.0)
+ fprintf(fd2,"Depression");
+ else
+ fprintf(fd2,"Elevation");
+
+ fprintf(fd2," angle to the first obstruction: %+.4f degrees\n",angle2);
+ }
+
+ fprintf(fd2,"\n%s\n\n",dashes);
+
+ if (LR.frq_mhz>0.0)
+ {
+ fprintf(fd2,"Longley-Rice path calculation parameters used in this analysis:\n\n");
+ fprintf(fd2,"Earth's Dielectric Constant: %.3lf\n",LR.eps_dielect);
+ fprintf(fd2,"Earth's Conductivity: %.3lf Siemens/meter\n",LR.sgm_conductivity);
+ fprintf(fd2,"Atmospheric Bending Constant (N-units): %.3lf ppm\n",LR.eno_ns_surfref);
+ fprintf(fd2,"Frequency: %.3lf MHz\n",LR.frq_mhz);
+ fprintf(fd2,"Radio Climate: %d (",LR.radio_climate);
+
+ switch (LR.radio_climate)
+ {
+ case 1:
+ fprintf(fd2,"Equatorial");
+ break;
+
+ case 2:
+ fprintf(fd2,"Continental Subtropical");
+ break;
+
+ case 3:
+ fprintf(fd2,"Maritime Subtropical");
+ break;
+
+ case 4:
+ fprintf(fd2,"Desert");
+ break;
+
+ case 5:
+ fprintf(fd2,"Continental Temperate");
+ break;
+
+ case 6:
+ fprintf(fd2,"Martitime Temperate, Over Land");
+ break;
+
+ case 7:
+ fprintf(fd2,"Maritime Temperate, Over Sea");
+ break;
+
+ default:
+ fprintf(fd2,"Unknown");
+ }
+
+ fprintf(fd2,")\nPolarization: %d (",LR.pol);
+
+ if (LR.pol==0)
+ fprintf(fd2,"Horizontal");
+
+ if (LR.pol==1)
+ fprintf(fd2,"Vertical");
+
+ fprintf(fd2,")\nFraction of Situations: %.1lf%c\n",LR.conf*100.0,37);
+ fprintf(fd2,"Fraction of Time: %.1lf%c\n",LR.rel*100.0,37);
+
+ if (LR.erp!=0.0)
+ {
+ fprintf(fd2,"Transmitter ERP: ");
+
+ if (LR.erp<1.0)
+ fprintf(fd2,"%.1lf milliwatts",1000.0*LR.erp);
+
+ if (LR.erp>=1.0 && LR.erp<10.0)
+ fprintf(fd2,"%.1lf Watts",LR.erp);
+
+ if (LR.erp>=10.0 && LR.erp<10.0e3)
+ fprintf(fd2,"%.0lf Watts",LR.erp);
+
+ if (LR.erp>=10.0e3)
+ fprintf(fd2,"%.3lf kilowatts",LR.erp/1.0e3);
+
+ dBm=10.0*(log10(LR.erp*1000.0));
+ fprintf(fd2," (%+.2f dBm)\n",dBm);
+
+ /* EIRP = ERP + 2.14 dB */
+
+ fprintf(fd2,"Transmitter EIRP: ");
+
+ eirp=LR.erp*1.636816521;
+
+ if (eirp<1.0)
+ fprintf(fd2,"%.1lf milliwatts",1000.0*eirp);
+
+ if (eirp>=1.0 && eirp<10.0)
+ fprintf(fd2,"%.1lf Watts",eirp);
+
+ if (eirp>=10.0 && eirp<10.0e3)
+ fprintf(fd2,"%.0lf Watts",eirp);
- int x, y, z;
- char filename[255], term[15], ext[15];
- double angle, refangle, maxangle=-90.0;
- struct site remote;
- FILE *fd=NULL, *fd2=NULL;
+ if (eirp>=10.0e3)
+ fprintf(fd2,"%.3lf kilowatts",eirp/1.0e3);
- ReadPath(destination,source); /* destination=RX, source=TX */
- refangle=ElevationAngle(destination,source);
+ dBm=10.0*(log10(eirp*1000.0));
+ fprintf(fd2," (%+.2f dBm)\n",dBm);
+ }
- fd=fopen("profile.gp","wb");
- fd2=fopen("reference.gp","wb");
+ fprintf(fd2,"\n%s\n\n",dashes);
- for (x=1; x<path.length-1; x++)
- {
- remote.lat=path.lat[x];
- remote.lon=path.lon[x];
- remote.alt=0.0;
- angle=ElevationAngle(destination,remote);
- fprintf(fd,"%f\t%f\n",path.distance[x],angle);
- fprintf(fd2,"%f\t%f\n",path.distance[x],refangle);
+ fprintf(fd2,"Summary for the link between %s and %s:\n\n",source.name, destination.name);
- if (angle>maxangle)
- maxangle=angle;
- }
+ if (patterndB!=0.0)
+ fprintf(fd2,"%s antenna pattern towards %s: %.3f (%.2f dB)\n", source.name, destination.name, pattern, patterndB);
- fprintf(fd,"%f\t%f\n",path.distance[path.length-1],refangle);
- fprintf(fd2,"%f\t%f\n",path.distance[path.length-1],refangle);
+ ReadPath(source, destination); /* source=TX, destination=RX */
- fclose(fd);
- fclose(fd2);
+ /* Copy elevations plus clutter along
+ path into the elev[] array. */
- if (name[0]==0)
- {
- /* Default filename and output file type */
+ for (x=1; x<path.length-1; x++)
+ elev[x+2]=METERS_PER_FOOT*(path.elevation[x]==0.0?path.elevation[x]:(clutter+path.elevation[x]));
- strncpy(filename,"profile\0",8);
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
- }
+ /* Copy ending points without clutter */
- else
- {
- /* Grab extension and terminal type from "name" */
+ elev[2]=path.elevation[0]*METERS_PER_FOOT;
+ elev[path.length+1]=path.elevation[path.length-1]*METERS_PER_FOOT;
+
+ fd=fopen("profile.gp","w");
- for (x=0; name[x]!='.' && name[x]!=0 && x<254; x++)
- filename[x]=name[x];
+ azimuth=rint(Azimuth(source,destination));
- if (name[x]=='.')
+ for (y=2; y<(path.length-1); y++) /* path.length-1 avoids LR error */
{
- for (y=0, z=x, x++; name[x]!=0 && x<254 && y<14; x++, y++)
+ distance=5280.0*path.distance[y];
+ source_alt=four_thirds_earth+source.alt+path.elevation[0];
+ dest_alt=four_thirds_earth+destination.alt+path.elevation[y];
+ dest_alt2=dest_alt*dest_alt;
+ source_alt2=source_alt*source_alt;
+
+ /* Calculate the cosine of the elevation of
+ the receiver as seen by the transmitter. */
+
+ cos_xmtr_angle=((source_alt2)+(distance*distance)-(dest_alt2))/(2.0*source_alt*distance);
+
+ if (got_elevation_pattern)
{
- term[y]=tolower(name[x]);
- ext[y]=term[y];
+ /* If an antenna elevation pattern is available, the
+ following code determines the elevation angle to
+ the first obstruction along the path. */
+
+ for (x=2, block=0; x<y && block==0; x++)
+ {
+ distance=5280.0*(path.distance[y]-path.distance[x]);
+ test_alt=four_thirds_earth+path.elevation[x];
+
+ /* Calculate the cosine of the elevation
+ angle of the terrain (test point)
+ as seen by the transmitter. */
+
+ cos_test_angle=((source_alt2)+(distance*distance)-(test_alt*test_alt))/(2.0*source_alt*distance);
+
+ /* Compare these two angles to determine if
+ an obstruction exists. Since we're comparing
+ the cosines of these angles rather than
+ the angles themselves, the sense of the
+ following "if" statement is reversed from
+ what it would be if the angles themselves
+ were compared. */
+
+ if (cos_xmtr_angle>=cos_test_angle)
+ block=1;
+ }
+
+ /* At this point, we have the elevation angle
+ to the first obstruction (if it exists). */
}
- ext[y]=0;
- term[y]=0;
- filename[z]=0;
- }
+ /* Determine path loss for each point along the
+ path using Longley-Rice's point_to_point mode
+ starting at x=2 (number_of_points = 1), the
+ shortest distance terrain can play a role in
+ path loss. */
- else
- { /* No extension -- Default is gif */
+ elev[0]=y-1; /* (number of points - 1) */
- filename[x]=0;
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
- }
- }
+ /* Distance between elevation samples */
- /* Either .ps or .postscript may be used
- as an extension for postscript output. */
+ elev[1]=METERS_PER_MILE*(path.distance[y]-path.distance[y-1]);
- if (strncmp(term,"postscript",10)==0)
- strncpy(ext,"ps\0",3);
+ point_to_point(elev, source.alt*METERS_PER_FOOT,
+ destination.alt*METERS_PER_FOOT, LR.eps_dielect,
+ LR.sgm_conductivity, LR.eno_ns_surfref, LR.frq_mhz,
+ LR.radio_climate, LR.pol, LR.conf, LR.rel, loss,
+ strmode, errnum);
- else if (strncmp(ext,"ps",2)==0)
- strncpy(term,"postscript\0",11);
+ if (block)
+ elevation=((acos(cos_test_angle))/DEG2RAD)-90.0;
+ else
+ elevation=((acos(cos_xmtr_angle))/DEG2RAD)-90.0;
- fprintf(stdout,"Writing \"%s.%s\"...",filename,ext);
- fflush(stdout);
+ /* Integrate the antenna's radiation
+ pattern into the overall path loss. */
- fd=fopen("splat.gp","w");
+ x=(int)rint(10.0*(10.0-elevation));
- fprintf(fd,"set grid\n");
- fprintf(fd,"set yrange [%2.3f to %2.3f]\n", (-fabs(refangle)-0.25), maxangle+0.25);
- fprintf(fd,"set term %s\n",term);
- fprintf(fd,"set title \"SPLAT! Elevation Profile\"\n");
- fprintf(fd,"set xlabel \"Distance Between %s and %s (miles)\"\n",destination.name,source.name);
- fprintf(fd,"set ylabel \"Elevation Angle Along Path Between %s and %s (degrees)\"\n",destination.name,source.name);
- fprintf(fd,"set output \"%s.%s\"\n",filename,ext);
- fprintf(fd,"plot \"profile.gp\" title \"Real Earth Profile\" with lines, \"reference.gp\" title \"Line Of Sight Path\" with lines\n");
+ if (x>=0 && x<=1000)
+ {
+ pattern=(double)LR.antenna_pattern[(int)azimuth][x];
- fclose(fd);
-
- x=system("gnuplot splat.gp");
+ if (pattern!=0.0)
+ patterndB=20.0*log10(pattern);
+ }
- if (x!=-1)
- {
- unlink("splat.gp");
- unlink("profile.gp");
- unlink("reference.gp");
+ else
+ patterndB=0.0;
- fprintf(stdout," Done!\n");
- fflush(stdout);
- }
+ total_loss=loss-patterndB;
- else
- fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
-}
+ if (metric)
+ fprintf(fd,"%f\t%f\n",KM_PER_MILE*(path.distance[path.length-1]-path.distance[y]),total_loss);
-void GraphHeight(struct site source, struct site destination, char *name)
-{
- /* This function invokes gnuplot to generate an appropriate
- output file indicating the terrain profile between the source
- and destination locations. What is plotted is the height of
- land above or below a straight line between the receibe and
- transmit sites. "filename" is the name assigned to the output
- file generated by gnuplot. The filename extension is used
- to set gnuplot's terminal setting and output file type.
- If no extension is found, .gif is assumed. */
+ else
+ fprintf(fd,"%f\t%f\n",path.distance[path.length-1]-path.distance[y],total_loss);
- int x, y, z;
- char filename[255], term[15], ext[15];
- double a, b, c, height, refangle, cangle, maxheight=-100000.0,
- minheight=100000.0;
- struct site remote;
- FILE *fd=NULL, *fd2=NULL;
+ if (total_loss>maxloss)
+ maxloss=total_loss;
- ReadPath(destination,source); /* destination=RX, source=TX */
- refangle=ElevationAngle(destination,source);
- b=GetElevation(destination)+destination.alt+earthradius;
+ if (total_loss<minloss)
+ minloss=total_loss;
+ }
- fd=fopen("profile.gp","wb");
- fd2=fopen("reference.gp","wb");
+ fclose(fd);
- for (x=1; x<path.length-1; x++)
- {
- remote.lat=path.lat[x];
- remote.lon=path.lon[x];
- remote.alt=0.0;
+ distance=Distance(source,destination);
- a=GetElevation(remote)+earthradius;
- cangle=5280.0*Distance(destination,remote)/earthradius;
+ if (distance!=0.0)
+ {
+ free_space_loss=36.6+(20.0*log10(LR.frq_mhz))+(20.0*log10(distance));
- c=b*sin(refangle*deg2rad+HALFPI)/sin(HALFPI-refangle*deg2rad-cangle);
+ fprintf(fd2,"Free space path loss: %.2f dB\n",free_space_loss);
+ }
- height=a-c;
+ fprintf(fd2,"Longley-Rice path loss: %.2f dB\n",loss);
- fprintf(fd,"%f\t%f\n",path.distance[x],height);
- fprintf(fd2,"%f\t%f\n",path.distance[x],0.);
+ if (free_space_loss!=0.0)
+ fprintf(fd2,"Attenuation due to terrain shielding: %.2f dB\n",loss-free_space_loss);
- if (height>maxheight)
- maxheight=height;
+ if (patterndB!=0.0)
+ fprintf(fd2,"Total path loss including %s antenna pattern: %.2f dB\n",source.name,total_loss);
- if (height<minheight)
- minheight=height;
- }
+ if (LR.erp!=0.0)
+ {
+ field_strength=(139.4+(20.0*log10(LR.frq_mhz))-total_loss)+(10.0*log10(LR.erp/1000.0));
- fprintf(fd,"%f\t%f\n",path.distance[path.length-1],0.0);
- fprintf(fd2,"%f\t%f\n",path.distance[path.length-1],0.0);
+ /* dBm is referenced to EIRP */
- fclose(fd);
- fclose(fd2);
+ rxp=eirp/(pow(10.0,(total_loss/10.0)));
+ dBm=10.0*(log10(rxp*1000.0));
+ power_density=(eirp/(pow(10.0,(total_loss-free_space_loss)/10.0)));
+ /* divide by 4*PI*distance_in_meters squared */
+ power_density/=(4.0*PI*distance*distance*2589988.11);
- if (name[0]==0)
- {
- /* Default filename and output file type */
+ fprintf(fd2,"Field strength at %s: %.2f dBuV/meter\n", destination.name,field_strength);
+ fprintf(fd2,"Signal power level at %s: %+.2f dBm\n",destination.name,dBm);
+ fprintf(fd2,"Signal power density at %s: %+.2f dBW per square meter\n",destination.name,10.0*log10(power_density));
+ voltage=1.0e6*sqrt(50.0*(eirp/(pow(10.0,(total_loss-2.14)/10.0))));
+ fprintf(fd2,"Voltage across 50 ohm dipole at %s: %.2f uV (%.2f dBuV)\n",destination.name,voltage,20.0*log10(voltage));
+
+ voltage=1.0e6*sqrt(75.0*(eirp/(pow(10.0,(total_loss-2.14)/10.0))));
+ fprintf(fd2,"Voltage across 75 ohm dipole at %s: %.2f uV (%.2f dBuV)\n",destination.name,voltage,20.0*log10(voltage));
+ }
+
+ fprintf(fd2,"Mode of propagation: %s\n",strmode);
+ fprintf(fd2,"Longley-Rice model error number: %d",errnum);
- strncpy(filename,"height\0",8);
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
+ switch (errnum)
+ {
+ case 0:
+ fprintf(fd2," (No error)\n");
+ break;
+
+ case 1:
+ fprintf(fd2,"\n Warning: Some parameters are nearly out of range.\n");
+ fprintf(fd2," Results should be used with caution.\n");
+ break;
+
+ case 2:
+ fprintf(fd2,"\n Note: Default parameters have been substituted for impossible ones.\n");
+ break;
+
+ case 3:
+ fprintf(fd2,"\n Warning: A combination of parameters is out of range.\n");
+ fprintf(fd2," Results are probably invalid.\n");
+ break;
+
+ default:
+ fprintf(fd2,"\n Warning: Some parameters are out of range.\n");
+ fprintf(fd2," Results are probably invalid.\n");
+ }
+
+ fprintf(fd2,"\n%s\n\n",dashes);
}
- else
- {
- /* Grab extension and terminal type from "name" */
+ fprintf(stdout,"\nPath Loss Report written to: \"%s\"\n",report_name);
+ fflush(stdout);
+
+ ObstructionAnalysis(source, destination, LR.frq_mhz, fd2);
+
+ fclose(fd2);
- for (x=0; name[x]!='.' && name[x]!=0 && x<254; x++)
- filename[x]=name[x];
+ /* Skip plotting the graph if ONLY a path-loss report is needed. */
- if (name[x]=='.')
+ if (graph_it)
+ {
+ if (name[0]=='.')
{
- for (y=0, z=x, x++; name[x]!=0 && x<254 && y<14; x++, y++)
- {
- term[y]=tolower(name[x]);
- ext[y]=term[y];
- }
+ /* Default filename and output file type */
- ext[y]=0;
- term[y]=0;
- filename[z]=0;
+ strncpy(basename,"profile\0",8);
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
}
else
- { /* No extension -- Default is gif */
+ {
+ /* Extract extension and terminal type from "name" */
+
+ ext[0]=0;
+ y=strlen(name);
+ strncpy(basename,name,254);
+
+ for (x=y-1; x>0 && name[x]!='.'; x--);
+
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ {
+ ext[z-(x+1)]=tolower(name[z]);
+ term[z-(x+1)]=name[z];
+ }
- filename[x]=0;
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ term[z-(x+1)]=0;
+ basename[x]=0;
+ }
}
- }
- /* Either .ps or .postscript may be used
- as an extension for postscript output. */
+ if (ext[0]==0) /* No extension -- Default is png */
+ {
+ strncpy(term,"png\0",4);
+ strncpy(ext,"png\0",4);
+ }
- if (strncmp(term,"postscript",10)==0)
- strncpy(ext,"ps\0",3);
+ /* Either .ps or .postscript may be used
+ as an extension for postscript output. */
- else if (strncmp(ext,"ps",2)==0)
- strncpy(term,"postscript\0",11);
+ if (strncmp(term,"postscript",10)==0)
+ strncpy(ext,"ps\0",3);
- fprintf(stdout,"Writing \"%s.%s\"...",filename,ext);
- fflush(stdout);
+ else if (strncmp(ext,"ps",2)==0)
+ strncpy(term,"postscript enhanced color\0",26);
- fd=fopen("splat.gp","w");
+ fd=fopen("splat.gp","w");
- minheight-=20.0;
- maxheight+=20.0;
+ fprintf(fd,"set grid\n");
+ fprintf(fd,"set yrange [%2.3f to %2.3f]\n", minloss, maxloss);
+ fprintf(fd,"set encoding iso_8859_1\n");
+ fprintf(fd,"set term %s\n",term);
+ fprintf(fd,"set title \"%s Loss Profile Along Path Between %s and %s (%.2f%c azimuth)\"\n",splat_name, destination.name, source.name, Azimuth(destination,source),176);
- if (maxheight<20.0)
- maxheight=20.0;
+ if (metric)
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f kilometers)\"\n",destination.name,source.name,KM_PER_MILE*Distance(destination,source));
+ else
+ fprintf(fd,"set xlabel \"Distance Between %s and %s (%.2f miles)\"\n",destination.name,source.name,Distance(destination,source));
- fprintf(fd,"set grid\n");
- fprintf(fd,"set yrange [%2.3f to %2.3f]\n", minheight, maxheight);
- fprintf(fd,"set term %s\n",term);
- fprintf(fd,"set title \"SPLAT! Height Profile\"\n");
- fprintf(fd,"set xlabel \"Distance Between %s and %s (miles)\"\n",destination.name,source.name);
- fprintf(fd,"set ylabel \"Ground Height Above Path Between %s and %s (feet)\"\n",destination.name,source.name);
- fprintf(fd,"set output \"%s.%s\"\n",filename,ext);
- fprintf(fd,"plot \"profile.gp\" title \"Real Earth Profile\" with lines, \"reference.gp\" title \"Line Of Sight Path\" with lines\n");
+ if (got_azimuth_pattern || got_elevation_pattern)
+ fprintf(fd,"set ylabel \"Total Path Loss (including TX antenna pattern) (dB)");
+ else
+ fprintf(fd,"set ylabel \"Longley-Rice Path Loss (dB)");
- fclose(fd);
+ fprintf(fd,"\"\nset output \"%s.%s\"\n",basename,ext);
+ fprintf(fd,"plot \"profile.gp\" title \"Path Loss\" with lines\n");
- x=system("gnuplot splat.gp");
+ fclose(fd);
+
+ x=system("gnuplot splat.gp");
- if (x!=-1)
- {
- unlink("splat.gp");
- unlink("profile.gp");
- unlink("reference.gp");
- fprintf(stdout," Done!\n");
- fflush(stdout);
+ if (x!=-1)
+ {
+ if (gpsav==0)
+ {
+ unlink("splat.gp");
+ unlink("profile.gp");
+ unlink("reference.gp");
+ }
+
+ fprintf(stdout,"Path loss plot written to: \"%s.%s\"\n",basename,ext);
+ fflush(stdout);
+ }
+
+ else
+ fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
}
- else
- fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
+ if (x!=-1 && gpsav==0)
+ unlink("profile.gp");
}
-void GraphLongley(struct site source, struct site destination, char *name)
+void SiteReport(struct site xmtr)
{
- /* This function invokes gnuplot to generate an appropriate
- output file indicating the Longley-Rice model loss between
- the source and destination locations. "filename" is the
- name assigned to the output file generated by gnuplot.
- The filename extension is used to set gnuplot's terminal
- setting and output file type. If no extension is found,
- .gif is assumed. */
-
- int x, y, z, errnum, errflag=0;
- char filename[255], term[15], ext[15], strmode[100], report_name[80];
- double maxloss=-100000.0, minloss=100000.0, loss, haavt, angle;
- FILE *fd=NULL, *fd2=NULL;
+ char report_name[80];
+ double terrain;
+ int x, azi;
+ FILE *fd;
- sprintf(report_name,"%s-to-%s.lro",source.name,destination.name);
+ sprintf(report_name,"%s-site_report.txt",xmtr.name);
for (x=0; report_name[x]!=0; x++)
if (report_name[x]==32 || report_name[x]==17 || report_name[x]==92 || report_name[x]==42 || report_name[x]==47)
report_name[x]='_';
- fd2=fopen(report_name,"w");
+ fd=fopen(report_name,"w");
- fprintf(fd2,"\n\t--==[ SPLAT! v%s Longley-Rice Model Path Loss Report ]==--\n\n",splat_version);
- fprintf(fd2,"Analysis of RF path conditions between %s and %s:\n",source.name, destination.name);
- fprintf(fd2,"\n-------------------------------------------------------------------------\n\n");
- fprintf(fd2,"Transmitter site: %s\n",source.name);
+ fprintf(fd,"\n\t--==[ %s v%s Site Analysis Report For: %s ]==--\n\n",splat_name, splat_version, xmtr.name);
- if (source.lat>=0.0)
+ fprintf(fd,"%s\n\n",dashes);
+
+ if (xmtr.lat>=0.0)
{
- fprintf(fd2,"Site location: %.4f North / %.4f West",source.lat, source.lon);
- fprintf(fd2, " (%s N / ", dec2dms(source.lat));
+ fprintf(fd,"Site location: %.4f North / %.4f West",xmtr.lat, xmtr.lon);
+ fprintf(fd, " (%s N / ",dec2dms(xmtr.lat));
}
else
{
-
- fprintf(fd2,"Site location: %.4f South / %.4f West",-source.lat, source.lon);
- fprintf(fd2, " (%s S / ", dec2dms(source.lat));
+ fprintf(fd,"Site location: %.4f South / %.4f West",-xmtr.lat, xmtr.lon);
+ fprintf(fd, " (%s S / ",dec2dms(xmtr.lat));
}
-
- fprintf(fd2, "%s W)\n", dec2dms(source.lon));
- fprintf(fd2,"Ground elevation: %.2f feet AMSL\n",GetElevation(source));
- fprintf(fd2,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",source.alt, source.alt+GetElevation(source));
-
- haavt=haat(source);
-
- if (haavt>-4999.0)
- fprintf(fd2,"Antenna height above average terrain: %.2f feet\n",haavt);
- fprintf(fd2,"Distance to %s: %.2f miles.\n",destination.name,Distance(source,destination));
- fprintf(fd2,"Azimuth to %s: %.2f degrees.\n",destination.name,Azimuth(source,destination));
-
- angle=ElevationAngle(source,destination);
-
- if (angle>=0.0)
- fprintf(fd2,"Angle of elevation between %s and %s: %+.4f degrees.\n",source.name,destination.name,angle);
-
- if (angle<0.0)
- fprintf(fd2,"Angle of depression between %s and %s: %+.4f degrees.\n",source.name,destination.name,angle);
-
- fprintf(fd2,"\n-------------------------------------------------------------------------\n\n");
-
- /* Receiver */
-
- fprintf(fd2,"Receiver site: %s\n",destination.name);
+ fprintf(fd, "%s W)\n",dec2dms(xmtr.lon));
- if (destination.lat>=0.0)
+ if (metric)
{
- fprintf(fd2,"Site location: %.4f North / %.4f West",destination.lat, destination.lon);
- fprintf(fd2, " (%s N / ", dec2dms(destination.lat));
+ fprintf(fd,"Ground elevation: %.2f meters AMSL\n",METERS_PER_FOOT*GetElevation(xmtr));
+ fprintf(fd,"Antenna height: %.2f meters AGL / %.2f meters AMSL\n",METERS_PER_FOOT*xmtr.alt, METERS_PER_FOOT*(xmtr.alt+GetElevation(xmtr)));
}
else
{
- fprintf(fd2,"Site location: %.4f South / %.4f West",-destination.lat, destination.lon);
- fprintf(fd2, " (%s S / ", dec2dms(destination.lat));
+ fprintf(fd,"Ground elevation: %.2f feet AMSL\n",GetElevation(xmtr));
+ fprintf(fd,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",xmtr.alt, xmtr.alt+GetElevation(xmtr));
}
- fprintf(fd2, "%s W)\n", dec2dms(destination.lon));
- fprintf(fd2,"Ground elevation: %.2f feet AMSL\n",GetElevation(destination));
- fprintf(fd2,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",destination.alt, destination.alt+GetElevation(destination));
+ terrain=haat(xmtr);
- haavt=haat(destination);
+ if (terrain>-4999.0)
+ {
+ if (metric)
+ fprintf(fd,"Antenna height above average terrain: %.2f meters\n\n",METERS_PER_FOOT*terrain);
+ else
+ fprintf(fd,"Antenna height above average terrain: %.2f feet\n\n",terrain);
- if (haavt>-4999.0)
- fprintf(fd2,"Antenna height above average terrain: %.2f feet\n",haavt);
+ /* Display the average terrain between 2 and 10 miles
+ from the transmitter site at azimuths of 0, 45, 90,
+ 135, 180, 225, 270, and 315 degrees. */
- fprintf(fd2,"Distance to %s: %.2f miles.\n",source.name,Distance(source,destination));
- fprintf(fd2,"Azimuth to %s: %.2f degrees.\n",source.name,Azimuth(destination,source));
+ for (azi=0; azi<=315; azi+=45)
+ {
+ fprintf(fd,"Average terrain at %3d degrees azimuth: ",azi);
+ terrain=AverageTerrain(xmtr,(double)azi,2.0,10.0);
+
+ if (terrain>-4999.0)
+ {
+ if (metric)
+ fprintf(fd,"%.2f meters AMSL\n",METERS_PER_FOOT*terrain);
+ else
+ fprintf(fd,"%.2f feet AMSL\n",terrain);
+ }
- angle=ElevationAngle(destination,source);
+ else
+ fprintf(fd,"No terrain\n");
+ }
+ }
- if (angle>=0.0)
- fprintf(fd2,"Angle of elevation between %s and %s: %+.4f degrees.\n",destination.name,source.name,angle);
+ fprintf(fd,"\n%s\n\n",dashes);
+ fclose(fd);
+ fprintf(stdout,"\nSite analysis report written to: \"%s\"\n",report_name);
+}
- if (angle<0.0)
- fprintf(fd2,"Angle of depression between %s and %s: %+.4f degrees.\n",destination.name,source.name,angle);
+void LoadTopoData(int max_lon, int min_lon, int max_lat, int min_lat)
+{
+ /* This function loads the SDF files required
+ to cover the limits of the region specified. */
- fprintf(fd2,"\n-------------------------------------------------------------------------\n\n");
+ int x, y, width, ymin, ymax;
- fprintf(fd2,"Longley-Rice path calculation parameters used in this analysis:\n\n");
- fprintf(fd2,"Earth's Dielectric Constant: %.3lf\n",LR.eps_dielect);
- fprintf(fd2,"Earth's Conductivity: %.3lf\n",LR.sgm_conductivity);
- fprintf(fd2,"Atmospheric Bending Constant (N): %.3lf\n",LR.eno_ns_surfref);
- fprintf(fd2,"Frequency: %.3lf (MHz)\n",LR.frq_mhz);
- fprintf(fd2,"Radio Climate: %d (",LR.radio_climate);
+ width=ReduceAngle(max_lon-min_lon);
- switch (LR.radio_climate)
+ if ((max_lon-min_lon)<=180.0)
{
- case 1:
- fprintf(fd2,"Equatorial");
- break;
-
- case 2:
- fprintf(fd2,"Continental Subtropical");
- break;
+ for (y=0; y<=width; y++)
+ for (x=min_lat; x<=max_lat; x++)
+ {
+ ymin=(int)(min_lon+(double)y);
- case 3:
- fprintf(fd2,"Maritime Subtropical");
- break;
+ while (ymin<0)
+ ymin+=360;
- case 4:
- fprintf(fd2,"Desert");
- break;
+ while (ymin>=360)
+ ymin-=360;
- case 5:
- fprintf(fd2,"Continental Temperate");
- break;
+ ymax=ymin+1;
- case 6:
- fprintf(fd2,"Martitime Temperate, Over Land");
- break;
+ while (ymax<0)
+ ymax+=360;
- case 7:
- fprintf(fd2,"Maritime Temperate, Over Sea");
- break;
+ while (ymax>=360)
+ ymax-=360;
- default:
- fprintf(fd2,"Unknown");
+ if (ippd==3600)
+ snprintf(string,19,"%d:%d:%d:%d-hd",x, x+1, ymin, ymax);
+ else
+ snprintf(string,16,"%d:%d:%d:%d",x, x+1, ymin, ymax);
+ LoadSDF(string);
+ }
}
- fprintf(fd2,")\nPolarization: %d (",LR.pol);
-
- if (LR.pol==0)
- fprintf(fd2,"Horizontal");
-
- if (LR.pol==1)
- fprintf(fd2,"Vertical");
+ else
+ {
+ for (y=0; y<=width; y++)
+ for (x=min_lat; x<=max_lat; x++)
+ {
+ ymin=max_lon+y;
- fprintf(fd2,")\nFraction of Situations: %.1lf%c\n",LR.conf*100.0,37);
- fprintf(fd2,"Fraction of Time: %.1lf%c\n",LR.rel*100.0,37);
+ while (ymin<0)
+ ymin+=360;
- fprintf(fd2,"\n-------------------------------------------------------------------------\n\n");
+ while (ymin>=360)
+ ymin-=360;
+
+ ymax=ymin+1;
- fprintf(fd2,"Analysis Results:\n\n");
+ while (ymax<0)
+ ymax+=360;
- ReadPath(source, destination); /* destination=RX, source=TX */
+ while (ymax>=360)
+ ymax-=360;
- elev_l[1]=0.04*METERS_PER_MILE;
+ if (ippd==3600)
+ snprintf(string,19,"%d:%d:%d:%d-hd",x, x+1, ymin, ymax);
+ else
+ snprintf(string,16,"%d:%d:%d:%d",x, x+1, ymin, ymax);
+ LoadSDF(string);
+ }
+ }
+}
- for (x=1; x<path.length; x++)
- elev_l[x+1]=path.elevation[x]*METERS_PER_FOOT;
+int LoadANO(char *filename)
+{
+ /* This function reads a SPLAT! alphanumeric output
+ file (-ani option) for analysis and/or map generation. */
- fprintf(fd2,"Distance (mi)\tLoss (dB)\tErrnum\tComment\n\n");
+ int error=0, max_west, min_west, max_north, min_north;
+ char string[80], *pointer=NULL, *s=NULL;
+ double latitude=0.0, longitude=0.0, azimuth=0.0, elevation=0.0,
+ ano=0.0;
+ FILE *fd;
- fd=fopen("profile.gp","w");
+ fd=fopen(filename,"r");
- for (x=2; x<path.length; x++)
+ if (fd!=NULL)
{
- elev_l[0]=x-1;
+ s=fgets(string,78,fd);
+ pointer=strchr(string,';');
- point_to_point(elev_l, source.alt*METERS_PER_FOOT,
- destination.alt*METERS_PER_FOOT,
- LR.eps_dielect, LR.sgm_conductivity, LR.eno_ns_surfref,
- LR.frq_mhz, LR.radio_climate, LR.pol, LR.conf, LR.rel,
- loss, strmode, errnum);
+ if (pointer!=NULL)
+ *pointer=0;
- /* Note: PASS BY REFERENCE ... loss and errnum are
- passed by reference, and are only used in this
- file by this function */
+ sscanf(string,"%d, %d",&max_west, &min_west);
+ s=fgets(string,78,fd);
+ pointer=strchr(string,';');
- fprintf(fd,"%f\t%f\n",path.distance[path.length-1]-path.distance[x],loss);
- fprintf(fd2,"%7.2f\t\t%7.2f\t\t %d\t%s\n",path.distance[x],loss, errnum, strmode);
+ if (pointer!=NULL)
+ *pointer=0;
- errflag|=errnum;
-
- if (loss>maxloss)
- maxloss=loss;
+ sscanf(string,"%d, %d",&max_north, &min_north);
- if (loss<minloss)
- minloss=loss;
- }
+ s=fgets(string,78,fd);
+ pointer=strchr(string,';');
- fclose(fd);
+ if (pointer!=NULL)
+ *pointer=0;
- if (errflag)
- {
- fprintf(fd2,"\nNotes on \"errnum\"...\n\n");
- fprintf(fd2," 0: No error. :-)\n");
- fprintf(fd2," 1: Warning! Some parameters are nearly out of range.\n");
- fprintf(fd2," Results should be used with caution.\n");
- fprintf(fd2," 2: Note: Default parameters have been substituted for impossible ones.\n");
- fprintf(fd2," 3: Warning! A combination of parameters is out of range.\n");
- fprintf(fd2," Results are probably invalid.\n");
- fprintf(fd2," Other: Warning! Some parameters are out of range.\n");
- fprintf(fd2," Results are probably invalid.\n\nEnd of Report\n");
- }
+ LoadTopoData(max_west-1, min_west, max_north-1, min_north);
- fprintf(stdout,"Longley-Rice Path Loss between %s and %s is %.2f db\n",source.name, destination.name, loss);
- fprintf(stdout,"Path Loss Report written to: \"%s\"\n",report_name);
- fflush(stdout);
+ fprintf(stdout,"\nReading \"%s\"... ",filename);
+ fflush(stdout);
- fclose(fd2);
+ s=fgets(string,78,fd);
+ sscanf(string,"%lf, %lf, %lf, %lf, %lf",&latitude, &longitude, &azimuth, &elevation, &ano);
- if (name[0]==0)
- {
- /* Default filename and output file type */
+ while (feof(fd)==0)
+ {
+ if (LR.erp==0.0)
+ {
+ /* Path loss */
- strncpy(filename,"loss\0",5);
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
- }
+ if (contour_threshold==0 || (fabs(ano)<=(double)contour_threshold))
+ {
+ ano=fabs(ano);
- else
- {
- /* Grab extension and terminal type from "name" */
+ if (ano>255.0)
+ ano=255.0;
- for (x=0; name[x]!='.' && name[x]!=0 && x<254; x++)
- filename[x]=name[x];
+ PutSignal(latitude,longitude,((unsigned char)round(ano)));
+ }
+ }
- if (name[x]=='.')
- {
- for (y=0, z=x, x++; name[x]!=0 && x<254 && y<14; x++, y++)
+ if (LR.erp!=0.0 && dbm!=0)
{
- term[y]=tolower(name[x]);
- ext[y]=term[y];
- }
+ /* signal power level in dBm */
- ext[y]=0;
- term[y]=0;
- filename[z]=0;
- }
+ if (contour_threshold==0 || (ano>=(double)contour_threshold))
+ {
+ ano=200.0+rint(ano);
- else
- { /* No extension -- Default is gif */
+ if (ano<0.0)
+ ano=0.0;
- filename[x]=0;
- strncpy(term,"gif\0",4);
- strncpy(ext,"gif\0",4);
- }
- }
+ if (ano>255.0)
+ ano=255.0;
- /* Either .ps or .postscript may be used
- as an extension for postscript output. */
+ PutSignal(latitude,longitude,((unsigned char)round(ano)));
+ }
+ }
- if (strncmp(term,"postscript",10)==0)
- strncpy(ext,"ps\0",3);
+ if (LR.erp!=0.0 && dbm==0)
+ {
+ /* field strength dBuV/m */
- else if (strncmp(ext,"ps",2)==0)
- strncpy(term,"postscript\0",11);
+ if (contour_threshold==0 || (ano>=(double)contour_threshold))
+ {
+ ano=100.0+rint(ano);
- fprintf(stdout,"Writing \"%s.%s\"...",filename,ext);
- fflush(stdout);
+ if (ano<0.0)
+ ano=0.0;
- fd=fopen("splat.gp","w");
+ if (ano>255.0)
+ ano=255.0;
- fprintf(fd,"set grid\n");
- fprintf(fd,"set yrange [%2.3f to %2.3f]\n", minloss, maxloss);
- fprintf(fd,"set term %s\n",term);
- fprintf(fd,"set title \"SPLAT! Loss Profile\"\n");
- fprintf(fd,"set xlabel \"Distance Between %s and %s (miles)\"\n",destination.name,source.name);
- fprintf(fd,"set ylabel \"Longley-Rice Loss (dB)\"\n");
- fprintf(fd,"set output \"%s.%s\"\n",filename,ext);
- fprintf(fd,"plot \"profile.gp\" title \"Longley-Rice Loss\" with lines\n");
+ PutSignal(latitude,longitude,((unsigned char)round(ano)));
+ }
+ }
- fclose(fd);
-
- x=system("gnuplot splat.gp");
+ s=fgets(string,78,fd);
+ sscanf(string,"%lf, %lf, %lf, %lf, %lf",&latitude, &longitude, &azimuth, &elevation, &ano);
+ }
- if (x!=-1)
- {
- unlink("splat.gp");
- unlink("profile.gp");
- unlink("reference.gp");
+ fclose(fd);
fprintf(stdout," Done!\n");
fflush(stdout);
}
else
- fprintf(stderr,"\n*** ERROR: Error occurred invoking gnuplot!\n");
+ error=1;
+
+ return error;
}
-void ObstructionReport(struct site xmtr, struct site rcvr, char report)
+void WriteKML(struct site source, struct site destination)
{
- struct site result, result2, new_site;
- double angle, haavt;
- unsigned char block;
- char report_name[80], string[255];
- int x;
- FILE *fd;
+ int x, y;
+ char block, report_name[80];
+ double distance, rx_alt, tx_alt, cos_xmtr_angle,
+ azimuth, cos_test_angle, test_alt;
+ FILE *fd=NULL;
+
+ ReadPath(source,destination);
- sprintf(report_name,"%s-to-%s.txt",xmtr.name,rcvr.name);
+ sprintf(report_name,"%s-to-%s.kml",source.name,destination.name);
for (x=0; report_name[x]!=0; x++)
if (report_name[x]==32 || report_name[x]==17 || report_name[x]==92 || report_name[x]==42 || report_name[x]==47)
fd=fopen(report_name,"w");
- fprintf(fd,"\n\t\t--==[ SPLAT! v%s Obstruction Report ]==--\n\n",splat_version);
- fprintf(fd,"Analysis of line-of-sight path conditions between %s and %s:\n",xmtr.name, rcvr.name);
- fprintf(fd,"\n-------------------------------------------------------------------------\n\n");
- fprintf(fd,"Transmitter site: %s\n",xmtr.name);
-
+ fprintf(fd,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+ fprintf(fd,"<kml xmlns=\"http://earth.google.com/kml/2.0\">\n");
+ fprintf(fd,"<!-- Generated by %s Version %s -->\n",splat_name, splat_version);
+ fprintf(fd,"<Folder>\n");
+ fprintf(fd,"<name>SPLAT! Path</name>\n");
+ fprintf(fd,"<open>1</open>\n");
+ fprintf(fd,"<description>Path Between %s and %s</description>\n",source.name,destination.name);
- if (xmtr.lat>=0.0)
- {
- fprintf(fd,"Site location: %.4f North / %.4f West",xmtr.lat, xmtr.lon);
- fprintf(fd, " (%s N / ", dec2dms(xmtr.lat));
- }
+ fprintf(fd,"<Placemark>\n");
+ fprintf(fd," <name>%s</name>\n",source.name);
+ fprintf(fd," <description>\n");
+ fprintf(fd," Transmit Site\n");
+ if (source.lat>=0.0)
+ fprintf(fd," <BR>%s North</BR>\n",dec2dms(source.lat));
else
- {
- fprintf(fd,"Site location: %.4f South / %.4f West",-xmtr.lat, xmtr.lon);
- fprintf(fd, " (%s S / ", dec2dms(xmtr.lat));
- }
-
- fprintf(fd, "%s W)\n", dec2dms(xmtr.lon));
- fprintf(fd,"Ground elevation: %.2f feet AMSL\n",GetElevation(xmtr));
- fprintf(fd,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",xmtr.alt, xmtr.alt+GetElevation(xmtr));
-
- haavt=haat(xmtr);
-
- if (haavt>-4999.0)
- fprintf(fd,"Antenna height above average terrain: %.2f feet\n",haavt);
+ fprintf(fd," <BR>%s South</BR>\n",dec2dms(source.lat));
- fprintf(fd,"Distance to %s: %.2f miles.\n",rcvr.name,Distance(xmtr,rcvr));
- fprintf(fd,"Azimuth to %s: %.2f degrees.\n",rcvr.name,Azimuth(xmtr,rcvr));
+ fprintf(fd," <BR>%s West</BR>\n",dec2dms(source.lon));
- angle=ElevationAngle(xmtr,rcvr);
-
- if (angle>=0.0)
- fprintf(fd,"Angle of elevation between %s and %s: %+.4f degrees.\n",xmtr.name,rcvr.name,angle);
-
- if (angle<0.0)
- fprintf(fd,"Angle of depression between %s and %s: %+.4f degrees.\n",xmtr.name,rcvr.name,angle);
-
- fprintf(fd,"\n-------------------------------------------------------------------------\n\n");
-
- /* Receiver */
-
- fprintf(fd,"Receiver site: %s\n",rcvr.name);
-
- if (rcvr.lat>=0.0)
- {
- fprintf(fd,"Site location: %.4f North / %.4f West",rcvr.lat, rcvr.lon);
- fprintf(fd, " (%s N / ", dec2dms(rcvr.lat));
- }
+ azimuth=Azimuth(source,destination);
+ distance=Distance(source,destination);
+ if (metric)
+ fprintf(fd," <BR>%.2f km",distance*KM_PER_MILE);
else
- {
- fprintf(fd,"Site location: %.4f South / %.4f West",-rcvr.lat, rcvr.lon);
- fprintf(fd, " (%s S / ", dec2dms(rcvr.lat));
- }
-
- fprintf(fd, "%s W)\n", dec2dms(rcvr.lon));
- fprintf(fd,"Ground elevation: %.2f feet AMSL\n",GetElevation(rcvr));
- fprintf(fd,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",rcvr.alt, rcvr.alt+GetElevation(rcvr));
-
- haavt=haat(rcvr);
-
- if (haavt>-4999.0)
- fprintf(fd,"Antenna height above average terrain: %.2f feet\n",haavt);
-
- fprintf(fd,"Distance to %s: %.2f miles.\n",xmtr.name,Distance(xmtr,rcvr));
- fprintf(fd,"Azimuth to %s: %.2f degrees.\n",xmtr.name,Azimuth(rcvr,xmtr));
+ fprintf(fd," <BR>%.2f miles",distance);
+
+ fprintf(fd," to %s</BR>\n <BR>toward an azimuth of %.2f%c</BR>\n",destination.name,azimuth,176);
+
+ fprintf(fd," </description>\n");
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <IconStyle>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>root://icons/palette-5.png</href>\n");
+ fprintf(fd," <x>224</x>\n");
+ fprintf(fd," <y>224</y>\n");
+ fprintf(fd," <w>32</w>\n");
+ fprintf(fd," <h>32</h>\n");
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," </IconStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <Point>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>%f,%f,30</coordinates>\n",(source.lon<180.0?-source.lon:360.0-source.lon),source.lat);
+ fprintf(fd," </Point>\n");
+ fprintf(fd,"</Placemark>\n");
+
+ fprintf(fd,"<Placemark>\n");
+ fprintf(fd," <name>%s</name>\n",destination.name);
+ fprintf(fd," <description>\n");
+ fprintf(fd," Receive Site\n");
- angle=ElevationAngle(rcvr,xmtr);
+ if (destination.lat>=0.0)
+ fprintf(fd," <BR>%s North</BR>\n",dec2dms(destination.lat));
+ else
+ fprintf(fd," <BR>%s South</BR>\n",dec2dms(destination.lat));
- if (angle>=0.0)
- fprintf(fd,"Angle of elevation between %s and %s: %+.4f degrees.\n",rcvr.name,xmtr.name,angle);
+ fprintf(fd," <BR>%s West</BR>\n",dec2dms(destination.lon));
- if (angle<0.0)
- fprintf(fd,"Angle of depression between %s and %s: %+.4f degrees.\n",rcvr.name,xmtr.name,angle);
+ if (metric)
+ fprintf(fd," <BR>%.2f km",distance*KM_PER_MILE);
+ else
+ fprintf(fd," <BR>%.2f miles",distance);
+
+ fprintf(fd," to %s</BR>\n <BR>toward an azimuth of %.2f%c</BR>\n",source.name,Azimuth(destination,source),176);
+
+ fprintf(fd," </description>\n");
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <IconStyle>\n");
+ fprintf(fd," <Icon>\n");
+ fprintf(fd," <href>root://icons/palette-5.png</href>\n");
+ fprintf(fd," <x>224</x>\n");
+ fprintf(fd," <y>224</y>\n");
+ fprintf(fd," <w>32</w>\n");
+ fprintf(fd," <h>32</h>\n");
+ fprintf(fd," </Icon>\n");
+ fprintf(fd," </IconStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <Point>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>%f,%f,30</coordinates>\n",(destination.lon<180.0?-destination.lon:360.0-destination.lon),destination.lat);
+ fprintf(fd," </Point>\n");
+ fprintf(fd,"</Placemark>\n");
+
+ fprintf(fd,"<Placemark>\n");
+ fprintf(fd,"<name>Point-to-Point Path</name>\n");
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <open>0</open>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <LineStyle>\n");
+ fprintf(fd," <color>7fffffff</color>\n");
+ fprintf(fd," </LineStyle>\n");
+ fprintf(fd," <PolyStyle>\n");
+ fprintf(fd," <color>7fffffff</color>\n");
+ fprintf(fd," </PolyStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <LineString>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <tessellate>1</tessellate>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>\n");
- fprintf(fd,"\n-------------------------------------------------------------------------\n\n");
+ for (x=0; x<path.length; x++)
+ fprintf(fd," %f,%f,5\n",(path.lon[x]<180.0?-path.lon[x]:360.0-path.lon[x]),path.lat[x]);
+
+ fprintf(fd," </coordinates>\n");
+ fprintf(fd," </LineString>\n");
+ fprintf(fd,"</Placemark>\n");
+
+ fprintf(fd,"<Placemark>\n");
+ fprintf(fd,"<name>Line-of-Sight Path</name>\n");
+ fprintf(fd," <visibility>1</visibility>\n");
+ fprintf(fd," <open>0</open>\n");
+ fprintf(fd," <Style>\n");
+ fprintf(fd," <LineStyle>\n");
+ fprintf(fd," <color>ff00ff00</color>\n");
+ fprintf(fd," </LineStyle>\n");
+ fprintf(fd," <PolyStyle>\n");
+ fprintf(fd," <color>7f00ff00</color>\n");
+ fprintf(fd," </PolyStyle>\n");
+ fprintf(fd," </Style>\n");
+ fprintf(fd," <LineString>\n");
+ fprintf(fd," <extrude>1</extrude>\n");
+ fprintf(fd," <tessellate>1</tessellate>\n");
+ fprintf(fd," <altitudeMode>relativeToGround</altitudeMode>\n");
+ fprintf(fd," <coordinates>\n");
+
+ /* Walk across the "path", indentifying obstructions along the way */
- if (report=='y')
+ for (y=0; y<path.length; y++)
{
- /* Write an Obstruction Report */
+ distance=5280.0*path.distance[y];
+ tx_alt=earthradius+source.alt+path.elevation[0];
+ rx_alt=earthradius+destination.alt+path.elevation[y];
- new_site=rcvr;
- result=los(xmtr,rcvr);
- result2=result;
- result2.alt-=1;
- block=result.name[0];
+ /* Calculate the cosine of the elevation of the
+ transmitter as seen at the temp rx point. */
- if (block=='*')
- fprintf(fd,"SPLAT! detected obstructions at:\n\n");
+ cos_xmtr_angle=((rx_alt*rx_alt)+(distance*distance)-(tx_alt*tx_alt))/(2.0*rx_alt*distance);
- while (block=='*')
+ for (x=y, block=0; x>=0 && block==0; x--)
{
- if (result.lat!=result2.lat || result.lon!=result2.lon || result.alt!=result2.alt)
- {
- if (result.lat>=0.0)
- fprintf(fd,"\t%.4f N, %.4f W, %5.2f miles, %6.2f feet AMSL.\n",result.lat, result.lon, Distance(rcvr,result), result.alt);
- else
-
- fprintf(fd,"\t%.4f S, %.4f W, %5.2f miles, %6.2f feet AMSL.\n",-result.lat, result.lon, Distance(rcvr,result), result.alt);
- }
+ distance=5280.0*(path.distance[y]-path.distance[x]);
+ test_alt=earthradius+path.elevation[x];
- result2=result;
- new_site.alt+=1.0;
+ cos_test_angle=((rx_alt*rx_alt)+(distance*distance)-(test_alt*test_alt))/(2.0*rx_alt*distance);
- /* Can you hear me now? :-) */
+ /* Compare these two angles to determine if
+ an obstruction exists. Since we're comparing
+ the cosines of these angles rather than
+ the angles themselves, the following "if"
+ statement is reversed from what it would
+ be if the actual angles were compared. */
- result=los(xmtr,new_site);
- block=result.name[0];
+ if (cos_xmtr_angle>=cos_test_angle)
+ block=1;
}
- if (new_site.alt!=rcvr.alt)
- sprintf(string,"\nAntenna at %s must be raised to at least %.2f feet AGL\nto clear all obstructions detected by SPLAT!\n\n",rcvr.name, new_site.alt);
+ if (block)
+ fprintf(fd," %f,%f,-30\n",(path.lon[y]<180.0?-path.lon[y]:360.0-path.lon[y]),path.lat[y]);
else
- sprintf(string,"\nNo obstructions due to terrain were detected by SPLAT!\n\n");
- }
-
- fprintf(fd,"%s",string);
-
- fclose(fd);
-
- /* Display LOS status to terminal */
-
- fprintf(stdout,"%sObstruction report written to: \"%s\"\n",string,report_name);
- fflush(stdout);
-}
-
-void SiteReport(struct site xmtr)
-{
- char report_name[80];
- double terrain;
- int x, azi;
- FILE *fd;
-
- sprintf(report_name,"%s-site_report.txt",xmtr.name);
-
- for (x=0; report_name[x]!=0; x++)
- if (report_name[x]==32 || report_name[x]==17 || report_name[x]==92 || report_name[x]==42 || report_name[x]==47)
- report_name[x]='_';
-
- fd=fopen(report_name,"w");
-
- fprintf(fd,"\n\t--==[ SPLAT! v%s Site Analysis Report For: %s ]==--\n\n",splat_version,xmtr.name);
-
- fprintf(fd,"---------------------------------------------------------------------------\n\n");
-
- if (xmtr.lat>=0.0)
- {
- fprintf(fd,"Site location: %.4f North / %.4f West",xmtr.lat, xmtr.lon);
- fprintf(fd, " (%s N / ",dec2dms(xmtr.lat));
- }
-
- else
- {
- fprintf(fd,"Site location: %.4f South / %.4f West",-xmtr.lat, xmtr.lon);
- fprintf(fd, " (%s S / ",dec2dms(xmtr.lat));
+ fprintf(fd," %f,%f,5\n",(path.lon[y]<180.0?-path.lon[y]:360.0-path.lon[y]),path.lat[y]);
}
- fprintf(fd, "%s W)\n",dec2dms(xmtr.lon));
- fprintf(fd,"Ground elevation: %.2f feet AMSL\n",GetElevation(xmtr));
- fprintf(fd,"Antenna height: %.2f feet AGL / %.2f feet AMSL\n",xmtr.alt, xmtr.alt+GetElevation(xmtr));
-
- terrain=haat(xmtr);
+ fprintf(fd," </coordinates>\n");
+ fprintf(fd," </LineString>\n");
+ fprintf(fd,"</Placemark>\n");
- if (terrain>-4999.0)
- {
- fprintf(fd,"Antenna height above average terrain: %.2f feet\n\n",terrain);
+ fprintf(fd," <LookAt>\n");
+ fprintf(fd," <longitude>%f</longitude>\n",(source.lon<180.0?-source.lon:360.0-source.lon));
+ fprintf(fd," <latitude>%f</latitude>\n",source.lat);
+ fprintf(fd," <range>300.0</range>\n");
+ fprintf(fd," <tilt>45.0</tilt>\n");
+ fprintf(fd," <heading>%f</heading>\n",azimuth);
+ fprintf(fd," </LookAt>\n");
- /* Display the average terrain between 2 and 10 miles
- from the transmitter site at azimuths of 0, 45, 90,
- 135, 180, 225, 270, and 315 degrees. */
+ fprintf(fd,"</Folder>\n");
+ fprintf(fd,"</kml>\n");
- for (azi=0; azi<=315; azi+=45)
- {
- fprintf(fd,"Average terrain at %3d degrees azimuth: ",azi);
- terrain=AverageTerrain(xmtr,(double)azi,2.0,10.0);
+ fclose(fd);
- if (terrain>-4999.0)
- fprintf(fd,"%.2f feet AMSL\n",terrain);
- else
- fprintf(fd,"No terrain\n");
- }
- }
+ fprintf(stdout, "\nKML file written to: \"%s\"",report_name);
- fprintf(fd,"\n---------------------------------------------------------------------------\n\n");
- fclose(fd);
- fprintf(stdout,"\nSite analysis report written to: \"%s\"\n",report_name);
+ fflush(stdout);
}
-int main(char argc, char *argv[])
+int main(int argc, char *argv[])
{
- int x, y, ymin, ymax, width, z=0, min_lat, min_lon,
- max_lat, max_lon, rxlat, rxlon, txlat, txlon,
- west_min, west_max, north_min, north_max;
+ int x, y, z=0, min_lat, min_lon, max_lat, max_lon,
+ rxlat, rxlon, txlat, txlon, west_min, west_max,
+ north_min, north_max;
- unsigned char coverage=0, LRmap=0, ext[20], terrain_plot=0,
- elevation_plot=0, height_plot=0,
+ unsigned char coverage=0, LRmap=0, terrain_plot=0,
+ elevation_plot=0, height_plot=0, map=0,
longley_plot=0, cities=0, bfs=0, txsites=0,
- count, report='y';
+ norm=0, topomap=0, geo=0, kml=0, pt2pt_mode=0,
+ area_mode=0, max_txsites, ngs=0, nolospath=0,
+ nositereports=0, fresnel_plot=1;
char mapfile[255], header[80], city_file[5][255],
elevation_file[255], height_file[255],
longley_file[255], terrain_file[255],
string[255], rxfile[255], *env=NULL,
- txfile[255], map=0, boundary_file[5][255],
- rxsite=0;
+ txfile[255], boundary_file[5][255],
+ udt_file[255], rxsite=0, ani_filename[255],
+ ano_filename[255], ext[20], *s=NULL;
double altitude=0.0, altitudeLR=0.0, tx_range=0.0,
- rx_range=0.0, deg_range=0.0, deg_limit,
+ rx_range=0.0, deg_range=0.0, deg_limit=0.0,
deg_range_lon, er_mult;
- struct site tx_site[4], rx_site;
+ struct site tx_site[32], rx_site;
FILE *fd;
- sprintf(header,"\n\t\t--==[ Welcome To SPLAT! v%s ]==--\n\n", splat_version);
+ strncpy(splat_version,"1.3.0\0",6);
+
+ if (HD_MODE==1)
+ strncpy(splat_name,"SPLAT! HD\0",10);
+ else
+ strncpy(splat_name,"SPLAT!\0",7);
+
+ strncpy(dashes,"---------------------------------------------------------------------------\0",76);
if (argc==1)
{
- fprintf(stdout, "%sAvailable Options...\n\n\t -t txsite(s).qth (max of 4)\n\t -r rxsite.qth\n",header);
- fprintf(stdout,"\t -c plot coverage area(s) of TX(s) based on an RX antenna at X feet AGL\n");
- fprintf(stdout,"\t -L plot path loss map of TX based on an RX antenna at X feet AGL\n");
- fprintf(stdout,"\t -s filename(s) of city/site file(s) to import (max of 5)\n");
- fprintf(stdout,"\t -b filename(s) of cartographic boundary file(s) to import (max of 5)\n");
- fprintf(stdout,"\t -p filename of terrain profile graph to plot\n");
- fprintf(stdout,"\t -e filename of terrain elevation graph to plot\n");
- fprintf(stdout,"\t -h filename of terrain height graph to plot\n");
- fprintf(stdout,"\t -l filename of Longley-Rice graph to plot\n");
- fprintf(stdout,"\t -o filename of topographic map to generate (.ppm)\n");
- fprintf(stdout,"\t -d sdf file directory path (overrides path in ~/.splat_path file)\n");
- fprintf(stdout,"\t -n no analysis, brief report\n\t -N no analysis, no report\n");
- fprintf(stdout,"\t -m earth radius multiplier\n");
- fprintf(stdout,"\t -R modify default range for -c or -L (miles)\n");
- fprintf(stdout,"\t-db maximum loss contour to display on path loss maps (80-230 dB)\n\n");
+ fprintf(stdout,"\n\t\t --==[ %s v%s Available Options... ]==--\n\n",splat_name, splat_version);
+
+ fprintf(stdout," -t txsite(s).qth (max of 4 with -c, max of 30 with -L)\n");
+ fprintf(stdout," -r rxsite.qth\n");
+ fprintf(stdout," -c plot coverage of TX(s) with an RX antenna at X feet/meters AGL\n");
+ fprintf(stdout," -L plot path loss map of TX based on an RX at X feet/meters AGL\n");
+ fprintf(stdout," -s filename(s) of city/site file(s) to import (5 max)\n");
+ fprintf(stdout," -b filename(s) of cartographic boundary file(s) to import (5 max)\n");
+ fprintf(stdout," -p filename of terrain profile graph to plot\n");
+ fprintf(stdout," -e filename of terrain elevation graph to plot\n");
+ fprintf(stdout," -h filename of terrain height graph to plot\n");
+ fprintf(stdout," -H filename of normalized terrain height graph to plot\n");
+ fprintf(stdout," -l filename of path loss graph to plot\n");
+ fprintf(stdout," -o filename of topographic map to generate (.ppm)\n");
+ fprintf(stdout," -u filename of user-defined terrain file to import\n");
+ fprintf(stdout," -d sdf file directory path (overrides path in ~/.splat_path file)\n");
+ fprintf(stdout," -m earth radius multiplier\n");
+ fprintf(stdout," -n do not plot LOS paths in .ppm maps\n");
+ fprintf(stdout," -N do not produce unnecessary site or obstruction reports\n");
+ fprintf(stdout," -f frequency for Fresnel zone calculation (MHz)\n");
+ fprintf(stdout," -R modify default range for -c or -L (miles/kilometers)\n");
+ fprintf(stdout," -db threshold beyond which contours will not be displayed\n");
+ fprintf(stdout," -nf do not plot Fresnel zones in height plots\n");
+ fprintf(stdout," -fz Fresnel zone clearance percentage (default = 60)\n");
+ fprintf(stdout," -gc ground clutter height (feet/meters)\n");
+ fprintf(stdout," -ngs display greyscale topography as white in .ppm files\n");
+ fprintf(stdout," -erp override ERP in .lrp file (Watts)\n");
+ fprintf(stdout," -ano name of alphanumeric output file\n");
+ fprintf(stdout," -ani name of alphanumeric input file\n");
+ fprintf(stdout," -udt name of user defined terrain input file\n");
+ fprintf(stdout," -kml generate Google Earth (.kml) compatible output\n");
+ fprintf(stdout," -geo generate an Xastir .geo georeference file (with .ppm output)\n");
+ fprintf(stdout," -dbm plot signal power level contours rather than field strength\n");
+ fprintf(stdout," -gpsav preserve gnuplot temporary working files after SPLAT! execution\n");
+ fprintf(stdout," -metric employ metric rather than imperial units for all user I/O\n\n");
+ fprintf(stdout,"If that flew by too fast, consider piping the output through 'less':\n");
+
+ if (HD_MODE==0)
+ fprintf(stdout,"\n\tsplat | less\n\n");
+ else
+ fprintf(stdout,"\n\tsplat-hd | less\n\n");
fprintf(stdout,"Type 'man splat', or see the documentation for more details.\n\n");
+
+ y=(int)sqrt((int)MAXPAGES);
+
+ fprintf(stdout,"This compilation of %s supports analysis over a region of\n%d square ",splat_name,y);
+
+ if (y==1)
+
+ fprintf(stdout,"degree");
+ else
+ fprintf(stdout,"degrees");
+
+ fprintf(stdout," of terrain.\n\n");
fflush(stdout);
+
return 1;
}
y=argc-1;
+ kml=0;
+ geo=0;
+ dbm=0;
+ gpsav=0;
+ metric=0;
rxfile[0]=0;
txfile[0]=0;
string[0]=0;
mapfile[0]=0;
+ clutter=0.0;
+ forced_erp=-1.0;
+ forced_freq=0.0;
elevation_file[0]=0;
terrain_file[0]=0;
sdf_path[0]=0;
+ udt_file[0]=0;
path.length=0;
+ max_txsites=30;
+ fzone_clearance=0.6;
+ contour_threshold=0;
rx_site.lat=91.0;
rx_site.lon=361.0;
+ longley_file[0]=0;
+ ano_filename[0]=0;
+ ani_filename[0]=0;
earthradius=EARTHRADIUS;
+ ippd=IPPD; /* pixels per degree (integer) */
+ ppd=(double)ippd; /* pixels per degree (double) */
+ dpp=1.0/ppd; /* degrees per pixel */
+ mpi=ippd-1; /* maximum pixel index per degree */
+
+ sprintf(header,"\n\t\t--==[ Welcome To %s v%s ]==--\n\n", splat_name, splat_version);
+
for (x=0; x<4; x++)
{
tx_site[x].lat=91.0;
tx_site[x].lon=361.0;
}
- for (x=0; x<MAXSLOTS; x++)
+ for (x=0; x<MAXPAGES; x++)
{
dem[x].min_el=32768;
dem[x].max_el=-32768;
dem[x].max_west=-1;
}
-
/* Scan for command line arguments */
for (x=1; x<=y; x++)
}
}
+ if (strcmp(argv[x],"-gc")==0)
+ {
+ z=x+1;
+
+ if (z<=y && argv[z][0] && argv[z][0]!='-')
+ {
+ sscanf(argv[z],"%lf",&clutter);
+
+ if (clutter<0.0)
+ clutter=0.0;
+ }
+ }
+
+ if (strcmp(argv[x],"-fz")==0)
+ {
+ z=x+1;
+
+ if (z<=y && argv[z][0] && argv[z][0]!='-')
+ {
+ sscanf(argv[z],"%lf",&fzone_clearance);
+
+ if (fzone_clearance<0.0 || fzone_clearance>100.0)
+ fzone_clearance=60.0;
+
+ fzone_clearance/=100.0;
+ }
+ }
+
if (strcmp(argv[x],"-o")==0)
{
z=x+1;
map=1;
}
+ if (strcmp(argv[x],"-udt")==0)
+ {
+ z=x+1;
+
+ if (z<=y && argv[z][0] && argv[z][0]!='-')
+ strncpy(udt_file,argv[z],253);
+ }
+
if (strcmp(argv[x],"-c")==0)
{
z=x+1;
if (z<=y && argv[z][0] && argv[z][0]!='-')
{
sscanf(argv[z],"%lf",&altitude);
+ map=1;
coverage=1;
+ area_mode=1;
+ max_txsites=4;
}
}
- if (strcmp(argv[x],"-db")==0)
+ if (strcmp(argv[x],"-db")==0 || strcmp(argv[x],"-dB")==0)
{
z=x+1;
- if (z<=y && argv[z][0] && argv[z][0]!='-')
- {
- sscanf(argv[z],"%d",&maxdB);
-
- maxdB=abs(maxdB);
-
- if (maxdB<80)
- maxdB=80;
-
- if (maxdB>230)
- maxdB=230;
- }
+ if (z<=y && argv[z][0]) /* A minus argument is legal here */
+ sscanf(argv[z],"%d",&contour_threshold);
}
if (strcmp(argv[x],"-p")==0)
{
strncpy(terrain_file,argv[z],253);
terrain_plot=1;
+ pt2pt_mode=1;
}
}
{
strncpy(elevation_file,argv[z],253);
elevation_plot=1;
+ pt2pt_mode=1;
}
}
- if (strcmp(argv[x],"-h")==0)
+ if (strcmp(argv[x],"-h")==0 || strcmp(argv[x],"-H")==0)
{
z=x+1;
{
strncpy(height_file,argv[z],253);
height_plot=1;
+ pt2pt_mode=1;
}
+
+ if (strcmp(argv[x],"-H")==0)
+ norm=1;
+ else
+ norm=0;
}
+ if (strcmp(argv[x],"-metric")==0)
+ metric=1;
+
+ if (strcmp(argv[x],"-gpsav")==0)
+ gpsav=1;
+
+ if (strcmp(argv[x],"-geo")==0)
+ geo=1;
+
+ if (strcmp(argv[x],"-kml")==0)
+ kml=1;
+
+ if (strcmp(argv[x],"-nf")==0)
+ fresnel_plot=0;
+
+ if (strcmp(argv[x],"-ngs")==0)
+ ngs=1;
+
if (strcmp(argv[x],"-n")==0)
- {
- if (z<=y && argv[z][0] && argv[z][0]!='-')
- {
- report='n';
- map=1;
- }
- }
+ nolospath=1;
+
+ if (strcmp(argv[x],"-dbm")==0)
+ dbm=1;
if (strcmp(argv[x],"-N")==0)
{
- if (z<=y && argv[z][0] && argv[z][0]!='-');
- {
- report='N';
- map=1;
- }
+ nolospath=1;
+ nositereports=1;
}
if (strcmp(argv[x],"-d")==0)
z=x+1;
- while (z<=y && argv[z][0] && argv[z][0]!='-' && txsites<4)
+ while (z<=y && argv[z][0] && argv[z][0]!='-' && txsites<30)
{
strncpy(txfile,argv[z],253);
tx_site[txsites]=LoadQTH(txfile);
txsites++;
z++;
}
+
z--;
}
if (z<=y && argv[z][0] && argv[z][0]!='-')
{
sscanf(argv[z],"%lf",&altitudeLR);
+ map=1;
+ LRmap=1;
+ area_mode=1;
if (coverage)
fprintf(stdout,"c and L are exclusive options, ignoring L.\n");
- else
- {
- LRmap=1;
- ReadLRParm(txfile);
- }
}
}
{
strncpy(longley_file,argv[z],253);
longley_plot=1;
- /* Doing this twice is harmless */
- ReadLRParm(txfile);
+ pt2pt_mode=1;
}
}
strncpy(rxfile,argv[z],253);
rx_site=LoadQTH(rxfile);
rxsite=1;
+ pt2pt_mode=1;
}
}
z=x+1;
- while (z<=y && argv[z][0] && argv[z][0]!='-' && cities<5)
+ while (z<=y && argv[z][0] && argv[z][0]!='-' && cities<5)
+ {
+ strncpy(city_file[cities],argv[z],253);
+ cities++;
+ z++;
+ }
+
+ z--;
+ }
+
+ if (strcmp(argv[x],"-b")==0)
+ {
+ /* Read Boundary File(s) */
+
+ z=x+1;
+
+ while (z<=y && argv[z][0] && argv[z][0]!='-' && bfs<5)
+ {
+ strncpy(boundary_file[bfs],argv[z],253);
+ bfs++;
+ z++;
+ }
+
+ z--;
+ }
+
+ if (strcmp(argv[x],"-f")==0)
+ {
+ z=x+1;
+
+ if (z<=y && argv[z][0] && argv[z][0]!='-')
+ {
+ sscanf(argv[z],"%lf",&forced_freq);
+
+ if (forced_freq<20.0)
+ forced_freq=0.0;
+
+ if (forced_freq>20.0e3)
+ forced_freq=20.0e3;
+ }
+ }
+
+ if (strcmp(argv[x],"-erp")==0)
+ {
+ z=x+1;
+
+ if (z<=y && argv[z][0] && argv[z][0]!='-')
{
- strncpy(city_file[cities],argv[z],253);
- cities++;
- z++;
- }
- z--;
+ sscanf(argv[z],"%lf",&forced_erp);
+
+ if (forced_erp<0.0)
+ forced_erp=-1.0;
+ }
}
- if (strcmp(argv[x],"-b")==0)
+ if (strcmp(argv[x],"-ano")==0)
{
- /* Read Boundary File(s) */
+ z=x+1;
+
+ if (z<=y && argv[z][0] && argv[z][0]!='-')
+ strncpy(ano_filename,argv[z],253);
+ }
+ if (strcmp(argv[x],"-ani")==0)
+ {
z=x+1;
- while (z<=y && argv[z][0] && argv[z][0]!='-' && bfs<5)
- {
- strncpy(boundary_file[bfs],argv[z],253);
- bfs++;
- z++;
- }
- z--;
+ if (z<=y && argv[z][0] && argv[z][0]!='-')
+ strncpy(ani_filename,argv[z],253);
}
}
exit (-1);
}
- if ((coverage+LRmap)==0 && rx_site.lat==91.0 && rx_site.lon==361.0)
+ if ((coverage+LRmap+ani_filename[0])==0 && rx_site.lat==91.0 && rx_site.lon==361.0)
{
- fprintf(stderr,"\n%c*** ERROR: No receiver site found or specified!\n\n",7);
- exit (-1);
+ if (max_range!=0.0 && txsites!=0)
+ {
+ /* Plot topographic map of radius "max_range" */
+
+ map=0;
+ topomap=1;
+ }
+
+ else
+ {
+ fprintf(stderr,"\n%c*** ERROR: No receiver site found or specified!\n\n",7);
+ exit (-1);
+ }
}
- /* No errors were detected. Whew! :-) */
+ /* No major errors were detected. Whew! :-) */
+
+ /* Adjust input parameters if -metric option is used */
+
+ if (metric)
+ {
+ altitudeLR/=METERS_PER_FOOT; /* meters --> feet */
+ max_range/=KM_PER_MILE; /* kilometers --> miles */
+ altitude/=METERS_PER_FOOT; /* meters --> feet */
+ clutter/=METERS_PER_FOOT; /* meters --> feet */
+ }
/* If no SDF path was specified on the command line (-d), check
for a path specified in the $HOME/.splat_path file. If the
if (sdf_path[0]==0)
{
env=getenv("HOME");
- sprintf(string,"%s/.splat_path",env);
+ snprintf(string,253,"%s/.splat_path",env);
fd=fopen(string,"r");
if (fd!=NULL)
{
- fgets(string,253,fd);
+ s=fgets(string,253,fd);
/* Remove <CR> and/or <LF> from string */
fprintf(stdout,"%s",header);
fflush(stdout);
+ if (ani_filename[0])
+ {
+ ReadLRParm(tx_site[0],0); /* Get ERP status */
+ y=LoadANO(ani_filename);
+
+ for (x=0; x<txsites && x<max_txsites; x++)
+ PlaceMarker(tx_site[x]);
+
+ if (rxsite)
+ PlaceMarker(rx_site);
+
+ if (bfs)
+ {
+ for (x=0; x<bfs; x++)
+ LoadBoundaries(boundary_file[x]);
+
+ fprintf(stdout,"\n");
+ fflush(stdout);
+ }
+
+ if (cities)
+ {
+ for (x=0; x<cities; x++)
+ LoadCities(city_file[x]);
+
+ fprintf(stdout,"\n");
+ fflush(stdout);
+ }
+
+ if (LR.erp==0.0)
+ WritePPMLR(mapfile,geo,kml,ngs,tx_site,txsites);
+ else
+ {
+ if (dbm)
+ WritePPMDBM(mapfile,geo,kml,ngs,tx_site,txsites);
+ else
+ WritePPMSS(mapfile,geo,kml,ngs,tx_site,txsites);
+ }
+
+ exit(0);
+ }
+
x=0;
y=0;
min_lon=(int)floor(tx_site[0].lon);
max_lon=(int)floor(tx_site[0].lon);
- for (y=0, z=0; z<txsites; z++)
+ for (y=0, z=0; z<txsites && z<max_txsites; z++)
{
txlat=(int)floor(tx_site[z].lat);
txlon=(int)floor(tx_site[z].lon);
if (LonDiff(txlon,min_lon)<0.0)
min_lon=txlon;
- if (LonDiff(txlon,max_lon)>0.0)
+ if (LonDiff(txlon,max_lon)>=0.0)
max_lon=txlon;
}
if (LonDiff(rxlon,min_lon)<0.0)
min_lon=rxlon;
- if (LonDiff(rxlon,max_lon)>0.0)
+ if (LonDiff(rxlon,max_lon)>=0.0)
max_lon=rxlon;
}
-
/* Load the required SDF files */
- width=ReduceAngle(max_lon-min_lon);
-
- if ((max_lon-min_lon)<=180.0)
- {
- for (y=0; y<=width; y++)
- for (x=min_lat; x<=max_lat; x++)
- {
- ymin=(int)(min_lon+(double)y);
-
- while (ymin<0)
- ymin+=360;
-
- while (ymin>=360)
- ymin-=360;
-
- ymax=ymin+1;
-
- while (ymax<0)
- ymax+=360;
-
- while (ymax>=360)
- ymax-=360;
-
- sprintf(string,"%d:%d:%d:%d",x, x+1, ymin, ymax);
- LoadSDF(string);
- }
- }
-
- else
- {
- for (y=0; y<=width; y++)
- for (x=min_lat; x<=max_lat; x++)
- {
- ymin=max_lon+y;
-
- while (ymin<0)
- ymin+=360;
-
- while (ymin>=360)
- ymin-=360;
-
- ymax=ymin+1;
-
- while (ymax<0)
- ymax+=360;
-
- while (ymax>=360)
- ymax-=360;
-
- sprintf(string,"%d:%d:%d:%d",x, x+1, ymin, ymax);
- LoadSDF(string);
- }
- }
+ LoadTopoData(max_lon, min_lon, max_lat, min_lat);
- if (coverage | LRmap)
+ if (area_mode || topomap)
{
- if (LRmap)
- txsites=1;
-
- for (z=0; z<txsites; z++)
+ for (z=0; z<txsites && z<max_txsites; z++)
{
/* "Ball park" estimates used to load any additional
SDF files required to conduct this analysis. */
/* deg_range determines the maximum
amount of topo data we read */
- deg_range=(tx_range+rx_range)/69.0;
+ deg_range=(tx_range+rx_range)/57.0;
- /* max_range sets the maximum size of the
+ /* max_range regulates the size of the
analysis. A small, non-zero amount can
be used to shrink the size of the analysis
and limit the amount of topo data read by
- SPLAT! A very large number will only increase
- the width of the analysis, not the size of
+ SPLAT! A large number will increase the
+ width of the analysis and the size of
the map. */
if (max_range==0.0)
max_range=tx_range+rx_range;
- if (max_range<(tx_range+rx_range))
- deg_range=max_range/69.0;
+ deg_range=max_range/57.0;
/* Prevent the demand for a really wide coverage
- from allocating more slots than are available
+ from allocating more "pages" than are available
in memory. */
- switch (MAXSLOTS)
+ switch (MAXPAGES)
{
+ case 1: deg_limit=0.125;
+ break;
+
case 2: deg_limit=0.25;
break;
case 9: deg_limit=1.0;
break;
- case 16: deg_limit=2.0;
+ case 16: deg_limit=1.5; /* WAS 2.0 */
+ break;
+
+ case 25: deg_limit=2.0; /* WAS 3.0 */
+ break;
+
+ case 36: deg_limit=2.5; /* New! */
+ break;
+
+ case 49: deg_limit=3.0; /* New! */
break;
- case 25: deg_limit=3.0;
+ case 64: deg_limit=3.5; /* New! */
+ break;
}
- if (tx_site[z].lat<70.0)
- deg_range_lon=deg_range/cos(deg2rad*tx_site[z].lat);
+ if (fabs(tx_site[z].lat)<70.0)
+ deg_range_lon=deg_range/cos(DEG2RAD*tx_site[z].lat);
else
- deg_range_lon=deg_range/cos(deg2rad*70.0);
+ deg_range_lon=deg_range/cos(DEG2RAD*70.0);
/* Correct for squares in degrees not being square in miles */
if (deg_range_lon>deg_limit)
deg_range_lon=deg_limit;
-
north_min=(int)floor(tx_site[z].lat-deg_range);
north_max=(int)floor(tx_site[z].lat+deg_range);
if (LonDiff(west_min,min_lon)<0.0)
min_lon=west_min;
- if (LonDiff(west_max,max_lon)>0.0)
+ if (LonDiff(west_max,max_lon)>=0.0)
max_lon=west_max;
}
+ /* Load any additional SDF files, if required */
- /* Load the required SDF files */
+ LoadTopoData(max_lon, min_lon, max_lat, min_lat);
+ }
+
+ if (udt_file[0])
+ LoadUDT(udt_file);
- width=ReduceAngle(max_lon-min_lon);
- if ((max_lon-min_lon)<=180.0)
- {
- for (y=0; y<=width; y++)
- for (x=min_lat; x<=max_lat; x++)
- {
- ymin=(int)(min_lon+(double)y);
+ /***** Let the SPLATting begin! *****/
+
+ if (pt2pt_mode)
+ {
+ PlaceMarker(rx_site);
- while (ymin<0)
- ymin+=360;
+ if (terrain_plot)
+ {
+ /* Extract extension (if present)
+ from "terrain_file" */
- while (ymin>=360)
- ymin-=360;
+ y=strlen(terrain_file);
- ymax=ymin+1;
+ for (x=y-1; x>0 && terrain_file[x]!='.'; x--);
- while (ymax<0)
- ymax+=360;
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ ext[z-(x+1)]=tolower(terrain_file[z]);
- while (ymax>=360)
- ymax-=360;
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ terrain_file[x]=0; /* Chop off extension */
+ }
- sprintf(string,"%d:%d:%d:%d",x, x+1, ymin, ymax);
- LoadSDF(string);
- }
+ else
+ strncpy(ext,"png\0",4);
}
- else
+ if (elevation_plot)
{
- for (y=0; y<=width; y++)
- for (x=min_lat; x<=max_lat; x++)
- {
- ymin=(int)(max_lon+(double)y);
+ /* Extract extension (if present)
+ from "elevation_file" */
- while (ymin<0)
- ymin+=360;
+ y=strlen(elevation_file);
- while (ymin>=360)
- ymin-=360;
-
- ymax=ymin+1;
+ for (x=y-1; x>0 && elevation_file[x]!='.'; x--);
- while (ymax<0)
- ymax+=360;
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ ext[z-(x+1)]=tolower(elevation_file[z]);
- while (ymax>=360)
- ymax-=360;
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ elevation_file[x]=0; /* Chop off extension */
+ }
- sprintf(string,"%d:%d:%d:%d",x, x+1, ymin, ymax);
- LoadSDF(string);
- }
+ else
+ strncpy(ext,"png\0",4);
}
- }
+ if (height_plot)
+ {
+ /* Extract extension (if present)
+ from "height_file" */
- if (mapfile[0])
- map=1;
+ y=strlen(height_file);
- if (coverage | LRmap)
- {
- for (x=0; x<txsites; x++)
- {
- if (coverage)
- PlotCoverage(tx_site[x],altitude);
+ for (x=y-1; x>0 && height_file[x]!='.'; x--);
- if (LRmap)
- PlotLRMap(tx_site[x],altitudeLR);
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ ext[z-(x+1)]=tolower(height_file[z]);
- PlaceMarker(tx_site[x]);
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ height_file[x]=0; /* Chop off extension */
+ }
- if (report!='N')
- SiteReport(tx_site[x]);
+ else
+ strncpy(ext,"png\0",4);
}
- map=1;
- }
+ if (longley_plot)
+ {
+ /* Extract extension (if present)
+ from "longley_file" */
- if (coverage==0 && LRmap==0)
- {
- PlaceMarker(rx_site);
+ y=strlen(longley_file);
- for (x=0; x<txsites; x++)
+ for (x=y-1; x>0 && longley_file[x]!='.'; x--);
+
+ if (x>0) /* Extension found */
+ {
+ for (z=x+1; z<=y && (z-(x+1))<10; z++)
+ ext[z-(x+1)]=tolower(longley_file[z]);
+
+ ext[z-(x+1)]=0; /* Ensure an ending 0 */
+ longley_file[x]=0; /* Chop off extension */
+ }
+
+ else
+ strncpy(ext,"png\0",4);
+ }
+
+ for (x=0; x<txsites && x<4; x++)
{
PlaceMarker(tx_site[x]);
- if (report=='y')
+ if (nolospath==0)
{
switch (x)
{
}
}
- if (report!='N')
- ObstructionReport(tx_site[x],rx_site,report);
- }
- }
-
- if (map)
- {
- if (bfs)
- {
- for (x=0; x<bfs; x++)
- LoadBoundaries(boundary_file[x]);
- }
+ if (nositereports==0)
+ SiteReport(tx_site[x]);
- if (cities)
- {
- for (x=0; x<cities; x++)
- LoadCities(city_file[x]);
- }
-
- if (!LRmap)
- WritePPM(mapfile);
- else
- WritePPMLR(mapfile);
- }
+ if (kml)
+ WriteKML(tx_site[x],rx_site);
- if (terrain_plot)
- {
- if (txsites>1)
- {
- for (x=0; terrain_file[x]!='.' && terrain_file[x]!=0 && x<80; x++);
+ if (txsites>1)
+ snprintf(string,250,"%s-%c.%s%c",longley_file,'1'+x,ext,0);
+ else
+ snprintf(string,250,"%s.%s%c",longley_file,ext,0);
- if (terrain_file[x]=='.') /* extension */
+ if (nositereports==0)
{
- ext[0]='.';
- for (y=1, z=x, x++; terrain_file[x]!=0 && x<253 && y<14; x++, y++)
- ext[y]=terrain_file[x];
+ if (longley_file[0]==0)
+ {
+ ReadLRParm(tx_site[x],0);
+ PathReport(tx_site[x],rx_site,string,0);
+ }
- ext[y]=0;
- terrain_file[z]=0;
+ else
+ {
+ ReadLRParm(tx_site[x],1);
+ PathReport(tx_site[x],rx_site,string,longley_file[0]);
+ }
}
- else
+ if (terrain_plot)
{
- ext[0]=0; /* No extension */
- terrain_file[x]=0;
- }
+ if (txsites>1)
+ snprintf(string,250,"%s-%c.%s%c",terrain_file,'1'+x,ext,0);
+ else
+ snprintf(string,250,"%s.%s%c",terrain_file,ext,0);
- for (count=0; count<txsites; count++)
- {
- sprintf(string,"%s-%c%s%c",terrain_file,'1'+count,ext,0);
- GraphTerrain(tx_site[count],rx_site,string);
+ GraphTerrain(tx_site[x],rx_site,string);
}
- }
-
- else
- GraphTerrain(tx_site[0],rx_site,terrain_file);
- }
-
- if (elevation_plot)
- {
- if (txsites>1)
- {
- for (x=0; elevation_file[x]!='.' && elevation_file[x]!=0 && x<80; x++);
- if (elevation_file[x]=='.') /* extension */
+ if (elevation_plot)
{
- ext[0]='.';
- for (y=1, z=x, x++; elevation_file[x]!=0 && x<253 && y<14; x++, y++)
- ext[y]=elevation_file[x];
+ if (txsites>1)
+ snprintf(string,250,"%s-%c.%s%c",elevation_file,'1'+x,ext,0);
+ else
+ snprintf(string,250,"%s.%s%c",elevation_file,ext,0);
- ext[y]=0;
- elevation_file[z]=0;
+ GraphElevation(tx_site[x],rx_site,string);
}
- else
+ if (height_plot)
{
- ext[0]=0; /* No extension */
- elevation_file[x]=0;
- }
+ if (txsites>1)
+ snprintf(string,250,"%s-%c.%s%c",height_file,'1'+x,ext,0);
+ else
+ snprintf(string,250,"%s.%s%c",height_file,ext,0);
- for (count=0; count<txsites; count++)
- {
- sprintf(string,"%s-%c%s%c",elevation_file,'1'+count,ext,0);
- GraphElevation(tx_site[count],rx_site,string);
+ GraphHeight(tx_site[x],rx_site,string,fresnel_plot,norm);
}
}
-
- else
- GraphElevation(tx_site[0],rx_site,elevation_file);
}
- if (height_plot)
+ if (area_mode && topomap==0)
{
- if (txsites>1)
+ for (x=0; x<txsites && x<max_txsites; x++)
{
- for (x=0; height_file[x]!='.' && height_file[x]!=0 && x<80; x++);
-
- if (height_file[x]=='.') /* extension */
- {
- ext[0]='.';
- for (y=1, z=x, x++; height_file[x]!=0 && x<253 && y<14; x++, y++)
- ext[y]=height_file[x];
-
- ext[y]=0;
- height_file[z]=0;
- }
+ if (coverage)
+ PlotLOSMap(tx_site[x],altitude);
- else
- {
- ext[0]=0; /* No extension */
- height_file[x]=0;
- }
+ else if (ReadLRParm(tx_site[x],1))
+ PlotLRMap(tx_site[x],altitudeLR,ano_filename);
- for (count=0; count<txsites; count++)
- {
- sprintf(string,"%s-%c%s%c",height_file,'1'+count,ext,0);
- GraphHeight(tx_site[count],rx_site,string);
- }
+ SiteReport(tx_site[x]);
}
-
- else
- GraphHeight(tx_site[0],rx_site,height_file);
}
- if (longley_plot)
+ if (map || topomap)
{
- if (txsites>1)
+ /* Label the map */
+
+ if (kml==0)
{
- for (x=0; longley_file[x]!='.' && longley_file[x]!=0 && x<80; x++);
+ for (x=0; x<txsites && x<max_txsites; x++)
+ PlaceMarker(tx_site[x]);
+ }
- if (longley_file[x]=='.') /* extension */
- {
- ext[0]='.';
- for (y=1, z=x, x++; longley_file[x]!=0 && x<253 && y<14; x++, y++)
- ext[y]=longley_file[x];
+ if (cities)
+ {
- ext[y]=0;
- longley_file[z]=0;
- }
+ for (y=0; y<cities; y++)
+ LoadCities(city_file[y]);
- else
- {
- ext[0]=0; /* No extension */
- longley_file[x]=0;
- }
+ fprintf(stdout,"\n");
+ fflush(stdout);
+ }
- for (count=0; count<txsites; count++)
- {
- sprintf(string,"%s-%c%s%c",longley_file,'1'+count,ext,0);
- GraphLongley(tx_site[count],rx_site,string);
- }
+ /* Load city and county boundary data files */
+
+ if (bfs)
+ {
+ for (y=0; y<bfs; y++)
+ LoadBoundaries(boundary_file[y]);
+
+ fprintf(stdout,"\n");
+ fflush(stdout);
}
+ /* Plot the map */
+
+ if (coverage || pt2pt_mode || topomap)
+ WritePPM(mapfile,geo,kml,ngs,tx_site,txsites);
+
else
- GraphLongley(tx_site[0],rx_site,longley_file);
+ {
+ if (LR.erp==0.0)
+ WritePPMLR(mapfile,geo,kml,ngs,tx_site,txsites);
+ else
+ if (dbm)
+ WritePPMDBM(mapfile,geo,kml,ngs,tx_site,txsites);
+ else
+ WritePPMSS(mapfile,geo,kml,ngs,tx_site,txsites);
+ }
}
+ printf("\n");
+
+ /* That's all, folks! */
+
return 0;
}
-
projects / debian / splat / blobdiff