--- /dev/null
+/* atlc - arbitrary transmission line calculator, for the analysis of
+transmission lines are directional couplers.
+
+Copyright (C) 2002. Dr. David Kirkby, PhD (G8WRB).
+
+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 package_version 2
+of the License, or (at your option) any later package_version.
+
+This program is distributed in the hope that it will be 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.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+USA.
+
+Dr. David Kirkby, e-mail drkirkby at gmail.com
+
+*/
+
+/* The function setup_arrays sets the type of a pixel to be dielectric,
+or metal. This routines refines that, setting the type of a pixel to be
+some number between 1 and 28 according to where it is located, and what
+is around it. See Green paper to understand what they mean */
+
+#include "config.h"
+#include "definitions.h"
+#include "exit_codes.h"
+
+extern int width, height;
+extern unsigned char **cell_type, **oddity;
+extern double **Er;
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+void set_oddity_value(void)
+{
+ int i, j;
+ double er, ERa, ERb, ERl, ERr;
+ int cl, cr, ca, cb;
+ unsigned char c;
+
+ /* Its easier to set the endge values first, as it
+ reduces the amount of checking needed in the main body.
+ There are only 11 cases here - 3 types of metal,
+ the four corners, and the four sides */
+
+ for(i=0;i<width; ++i) {
+ for(j=0;j<height;++j) {
+
+ oddity[i][j]=UNDEFINED_ODDITY; /* Stick it to some underfined status */
+
+ c=cell_type[i][j]; /* Cell type at point (i,j) */
+
+
+ /* The 3 metal cases can be quickly checked and the
+ oddity value assigned to a fixed value depending on
+ whether it's -1, 0 or +1 V */
+
+ if(c <= CONDUCTOR_PLUS_ONE_V ) /* a metal */
+ oddity[i][j]=c;
+
+
+ /* Now do the 4 courners */
+ else if( (i == 0) && (j == height-1) )
+ oddity[i][j]=BOTTOM_LEFT_CORNER;
+
+ else if ( (i == width-1) && (j == height-1) )
+ oddity[i][j]=BOTTOM_RIGHT_CORNER;
+
+ else if( (i == 0) && (j == 0) )
+ oddity[i][j]=TOP_LEFT_CORNER;
+
+ else if( (i == width-1) && (j == 0) )
+ oddity[i][j]=TOP_RIGHT_CORNER;
+
+ /* Now the four edges */
+ else if ( i == 0 )
+ oddity[i][j]=ORDINARY_POINT_LEFT_EDGE;
+
+ else if ( j == 0 )
+ oddity[i][j]=ORDINARY_POINT_TOP_EDGE;
+
+ else if ( j == height-1)
+ oddity[i][j]=ORDINARY_POINT_BOTTOM_EDGE;
+
+ else if ( i == width-1 )
+ oddity[i][j]=ORDINARY_POINT_RIGHT_EDGE;
+
+
+ else if ( (i == 0 || i == width-1 || j == 0 || j == height-1 ) && (oddity[i][j]==UNDEFINED_ODDITY)) {
+ fprintf(stderr,"Internal error: one of the edge points (%d,%d) is still undefined\n",i,j);
+ fprintf(stderr, "ZZZZZZZZZZZZZ width=%d height=%d\n", width, height);
+ fprintf(stderr,"Error set_oddity_value.c\n");
+ exit(INTERNAL_ERROR);
+ }
+ } /* end of for(j=0;j<height-0;++j) { */
+ } /* end of for(i=0;i<width-0; ++i) { */
+ /* With the oddity values of all the edges now know, the centre
+ values can be attempted */
+
+ for(i=1;i<width-1; ++i) {
+ for(j=1;j<height-1;++j) {
+
+ c=cell_type[i][j]; /* Cell type at point (i,j) */
+ cl=cell_type[i-1][j]; /* Cell type to left of point (i,j) */
+ cr=cell_type[i+1][j]; /* Cell type to right of point (i,j) */
+ ca=cell_type[i][j-1]; /* Cell type above point (i,j) */
+ cb=cell_type[i][j+1]; /* Cell type below point (i,j) */
+
+ ERa=Er[i][j-1];
+ ERb=Er[i][j+1];
+ ERl=Er[i-1][j];
+ ERr=Er[i+1][j];
+ er=Er[i][j];
+
+
+ /* If the conductor is at a fixed voltage, it must stay there
+ so there is nothing to do with it */
+
+ if(c == CONDUCTOR_ZERO_V )
+ oddity[i][j] = CONDUCTOR_ZERO_V;
+
+ else if(c== CONDUCTOR_PLUS_ONE_V)
+ oddity[i][j] = CONDUCTOR_PLUS_ONE_V;
+
+ else if(c == CONDUCTOR_MINUS_ONE_V )
+ oddity[i][j] = CONDUCTOR_MINUS_ONE_V;
+
+ else if ( cr <= CONDUCTOR_PLUS_ONE_V && cb<= CONDUCTOR_PLUS_ONE_V)
+ oddity[i][j]= METAL_BELOW_AND_RIGHT;
+
+ else if ( cr <= CONDUCTOR_PLUS_ONE_V && ca<= CONDUCTOR_PLUS_ONE_V)
+ oddity[i][j]= METAL_ABOVE_AND_RIGHT;
+
+ else if ( cl <= CONDUCTOR_PLUS_ONE_V && cb<= CONDUCTOR_PLUS_ONE_V)
+ oddity[i][j]= METAL_BELOW_AND_LEFT;
+
+ else if ( cl <= CONDUCTOR_PLUS_ONE_V && ca<= CONDUCTOR_PLUS_ONE_V)
+ oddity[i][j]= METAL_ABOVE_AND_LEFT;
+
+ else if ( ca <= CONDUCTOR_PLUS_ONE_V )
+ oddity[i][j]= METAL_ABOVE;
+
+ else if ( cb <= CONDUCTOR_PLUS_ONE_V )
+ oddity[i][j]= METAL_BELOW;
+
+ else if ( cl <= CONDUCTOR_PLUS_ONE_V )
+ oddity[i][j]= METAL_LEFT;
+
+ else if ( cr <= CONDUCTOR_PLUS_ONE_V )
+ oddity[i][j]= METAL_RIGHT;
+
+ else if ( ERb != ERa)
+ oddity[i][j]= DIFFERENT_DIELECTRIC_VERTICALLY;
+
+ else if ( ERl != ERr )
+ oddity[i][j]= DIFFERENT_DIELECTRIC_HORIZONTALLY;
+/*
+ else if ( ERa != er && ERr != er)
+ oddity[i][j]= DIFFERENT_DIELECTRIC_ABOVE_AND_RIGHT;
+
+ else if ( ERa != er && ERl != er)
+ oddity[i][j]= DIFFERENT_DIELECTRIC_ABOVE_AND_LEFT;
+
+ else if ( ERb != er && ERl != er)
+ oddity[i][j]= DIFFERENT_DIELECTRIC_BELOW_AND_LEFT;
+
+ else if ( ERa != er )
+ oddity[i][j]= DIFFERENT_DIELECTRIC_ABOVE;
+
+ else if ( ERb != er )
+ oddity[i][j]= DIFFERENT_DIELECTRIC_BELOW;
+ else if ( ERl != er )
+ oddity[i][j]= DIFFERENT_DIELECTRIC_LEFT;
+
+ else if ( ERr != er )
+ oddity[i][j]= DIFFERENT_DIELECTRIC_RIGHT;
+*/
+ else
+ oddity[i][j]= ORDINARY_INTERIOR_POINT;
+ }/* end of for i=0 to width-1 */
+ } /* end of for j= 0 to height-1 */
+}
+
projects / debian / atlc / blobdiff