X-Git-Url: https://git.gag.com/?p=debian%2Fsplat;a=blobdiff_plain;f=CHANGES;h=138b18acb5d11eda73f85da327cea6bf6eaeb566;hp=b8060bbf8bdfc63cd6a4b945a815831e6f4a3ab7;hb=3504a1ce545f764f4e96a31fa53dbf498e0bd9f9;hpb=996bd803ab22572b622b684221c9a8ca04b3f63a diff --git a/CHANGES b/CHANGES index b8060bb..138b18a 100644 --- a/CHANGES +++ b/CHANGES @@ -1,5 +1,132 @@ +Release 1.2.0b: +By John A. Magliacane, (15-Mar-2007): + +* Two bugs affecting the plotting of Fresnel zones were identified and fixed. + +* A bug that produced some erroneous elevation angles in SPLAT! Path Loss + Output (-plo option) files was identified and fixed. + +* Text documentation in Spanish was added (thanks to Charles Esobar). + +---------------------------------------------------------------------------- + +Release 1.2.0: +By John A. Magliacane, (22-Dec-2006): + +* All graph plotting has been enhanced to include distances, azimuths, + and in some cases, elevation angles, in numeric form. Height + plots (-h option) now include a contour of the Earth's curvature. + A new -H option was added that behaves the same as -h, except its + display of heights is normalized to the heights of the endpoints + along the plotted path. Graphs now default to PNG rather than GIF + format to reflect gnuplot's current trend away from .gif output. + (.gif is still available if your version of gnuplot supports it.) + Postscript output is now generated in enhanced color. + +* SPLAT! can now determine and plot Fresnel Zone clearances. A new + -f command-line option permits the Fresnel Zone frequency (in MHz) + to be specified, otherwise it can be determined from .lrp files when + path-loss calculations are performed. Antenna height requirements + for 60% clearance (0.6 F1) and 100% clearance (F1) of the First + Fresnel Zone now appear in Obstruction Reports. These zones are + also displayed graphically in height plots (-h or -H options). + +* Support for antenna radiation patterns has been added. SPLAT! now + reads normalized azimuth and elevation antenna field pattern data + from separate .az and .el files when Longley-Rice studies are performed. + One degree azimuth and one tenth degree elevation pattern resolution + is supported along with azimuthal pattern rotation and mechanical + vertical beam tilt. + +* A bug in the interpretation of the -n and -N command-line options + was fixed. + +* Negative geographical coordinates in DMS format are now (hopefully) + interpreted and displayed better than before. + +* SPLAT! data handling can be changed from imperial units (feet/miles) + to metric (meters/kilometers) units using the new -metric switch. + +* SPLAT! can now generate topographic maps without plotting + line-of-sight or path loss coverage. These maps are centered + approximately on the given tx_site, extend out to a radius + provided by the -R switch, and can be populated with county + boundaries and city names, just like SPLAT!'s traditional + line-of-sight and path loss maps. + +* Support for user-defined terrain files (ground clutter) has been + added. + +* SPLAT! can now generate .geo Georeference Information Files + when .ppm topography and coverage maps are created, permitting + the integration of SPLAT! generated maps with X Amateur Station + Tracking and Information Reporting (www.xastir.org) software. + +* SPLAT! can now generate .kml Keyhole Markup Language files that + when imported into "Google Map", dramatically illustrate the RF + path between transmitter and receiver locations when performing + point-to-point analyses. + +* Support for exporting Longley-Rice path loss contour studies to + external data files has been included. SPLAT! path loss files can + be used for performing coverage or interference studies outside of + SPLAT!. They can also be modified externally (with antenna pattern + data, for example) through scripts or small utilities, and imported + back into SPLAT! to generate coverage maps based on the revised + data without having to re-run any time intensive Longley-Rice path + loss calculations. + +* The documentation was updated to reflect the new features and + functionality of the software. + +---------------------------------------------------------------------------- + +Release 1.1.1: +By John A. Magliacane, (01-Apr-2006): + +* An srtm2sdf utility was added to permit SPLAT Data Files to be + derived from the latest 3-arc second SRTM (STS-99 Space Shuttle + Radar Topography Mission) digital elevation model data. The + quality of this data is *significantly* higher than that of older + USGS Digital Elevation Models previously used by SPLAT!. Despite + the higher quality, some voids in SRTM data sets still exist. + When voids are detected, the srtm2sdf utility replaces them with + equivalent elevation data found in existing SDF files (presumably + generated from older USGS elevation models). If older SDF files + are not available, voids are handled through pixel averaging or + direct replacement. + +* Coding changes were made that in concert with the new srtm2sdf utility + should allow SPLAT! to function over all regions of the planet for + which SRTM-3 elevation data is available. + +* SPLAT's SDF search path priority has been changed. SPLAT! now + searches for needed SDF files in the current working directory first. + If the needed file isn't found, SPLAT! then searches in the path + specified by the -d command-line option, or in the $HOME/.splat_path + file. + +* The color scheme used by SPLAT! in the generation of Longley-Rice + path loss maps was noticeably improved. + +* A new command-line option (-db) was added to allow constraints + to be placed on the maximum attenuation contours plotted on + path loss maps. + +* A possible array overflow condition in the ReadPath() function was + identified and fixed. + +* Some very slight coding modifications were made to permit warning-free + compilation under GCC 4.x.x. + +* The usgs2sdf utility was modified John Gabrysch (jgabby@gmail.com) to + properly handle the latest USGS DEM file format, and to properly scale + Alaska tiles. + +---------------------------------------------------------------------------- + Release 1.1.0: -By John A. Magliacane (29-Jan-2004): +By John A. Magliacane, (29-Jan-2004): * Extensively modified by J. D. McDonald in January 2004 to include the Longley-Rice propagation model using C++ code from NTIA/ITS. @@ -88,4 +215,3 @@ Release 1.0.0: by John A. Magliacane (08-Apr-2002): * First public release of SPLAT! -