Good morning :)I'm using GRASS 7.4.1 on a Linux cluster so I only have 
command-line capability. I have two vector layers (a country boundary polygon 
and part of an administrative area map - also polygons). I am trying to 
automate creating a PNG file of the admin areas overlaying the country boundary 
therefore all work has to be command-line (in a bash script). I've tried this 
two ways - using the d.mon start=png method and also the ps.map method as 
described below. The d.mon method appears to generate the image with only one 
vector map (not both) and only colors the borders - it won't use the fill_color 
setting. The ps.map method seems to work but assumes the image is on a sheet of 
paper so there's a ton of extra white-space. I'd like to use d.mon but I can 
use ps.map if someone could please let me know how to export only the 
computational region without all the extra 'paper' in the image. Here's my code:
g.region vector='Country'export GRASS_RENDER_IMMEDIATE=pngexport 
GRASS_RENDER_WIDTH=640export GRASS_RENDER_HEIGHT=480export 
GRASS_RENDER_TRANSPARENT=trueexport GRASS_RENDER_TRUECOLOR=trueexport 
GRASS_RENDER_FILE=$HOME/country_admin.pngexport 
GRASS_RENDER_FILE_COMPRESSION=0export GRASS_MESSAGE_FORMAT=plaind.mon 
start=pngd.vect map=Country color=210:210:210 fill_color=153:153:153 
display=shape type=aread.vect map=admin_area color=153:153:153 
rgb_column=area_color display=shape type=aread.mon stop=png
This only produces a png with the last vector listed and only the borders are 
colored with the rgb_column values.
If I do this without the d.mon start/stop lines ... i.e. relying on the 
GRASS_RENDER_IMMEDIATE=png only, then only one vector map is converted to png 
however it DOES do the color fill properly. With either above method the png is 
the correct size.
Now using ps.map (same env variable set as above):
g.region vector='Country'
ps.map input=$HOME/ps_rules.txt out=$HOME/country_admin.ps --overwrite 
  where ps_rules.txt is:border y  color 81:81:81  endvareas admin_area  layer 1 
 rgbcolumn area_color  color 153:153:153  endvareas Country  color 210:210:210  
fcolor 153:153:153  end
We don't have pstopng but we do have ghostscript:
gs-dSAFER -dBATCH -dNOPAUSE -sDEVICE=png16m -dTextAlphaBits=4 
-dGraphicsAlphaBits=4 -r300 -sOutputFile=$HOME/country_admin.png 
$HOME/country_admin.ps
This creates the correct image (color fills, etc) but has white margins and a 
lot of white space below the image like it is printed at the top of a piece of 
paper.
does anyone have any idea how to create a png with multiple vector maps 
overlaying each other (and not have the extra whitespace too)?
v/rChris
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