GMT

Dear GMT gurus,

I have noticed an error in newer versions of GMT > 5.1.x when attempting to plot OGR_GMT format polygon files. As a test of the different GMT versions, I made a very simple plotting script:

#!/bin/bash

output=africa_vegmap.ps

# -----------------------------

psbasemap -R-25/-34/55/25r -JA20/0/20 -D-25/-34/55/25r -B0 -P -K > $output

psxy potveg_biomes.gmt -R -J -A -fg -aG=gmtrgb -L -O -P >> $output

ps2raster -A -Tf $output

rm $output

Both the correct (with GMT 5.1.2) and incorrect (with GMT 5.3.0_r17024) versions of the output are attached to this bug report, along with the OGR_GMT polygon file I am using for plotting. Basically, the older version of GMT recognizes the OGR_GMT polygon file correctly and plots each polygon in the correct color. The newer version of GMT somehow thinks that all of the polygons should be painted the same color.

I recompiled both versions of GMT today, so they are linked to exactly the same libraries, including, e.g., GDAL.

Thank you very much for your help resolving this!

Best regard,

Jed