[GRASS-user] d.out.file format=png file malformed

[Dave Roberts]

Friends,

     I'm using GRASS 70-svn on Arch linux to generate figures for a 
report.  The general process is

1) GRASS - d.out.file format=png
2) xfig - import the PNG file, annotate, and export as PDF
3) TeX - import the file in a dvipdfm \special

    However, I'm now having problems with non-functional PNG files from 
d.out.file.  Just below is a paste from my console.  You can't see the 
error from inside xfig, but the line just below "xfig" is the stderr 
output from attempting to import demo_png.png.

***********************************************************************
GRASS 7.0.svn > d.out.file out=demo_png.png format=png size=800,600
 
                               Mapset <final> in Location <beartooth>
GRASS 7.0.svn > xfig
Warning: translation table syntax error: Missing '(' while parsing 
action sequence
'arning: ... found while parsing ':~Ctrl<Key>1: insert-string(1)
Warning: String to TranslationTable conversion encountered errors
libpng error: invalid file gamma in png_set_gamma
***********************************************************************

    The resulting PNG file will import into Imagemagick OK, and can then 
be exported back out as a PNG file which xfig will accept, so there is a 
work around, but maybe this is easily fixed?  I've had a look at Anna's 
python script but haven't gone into the imported modules.

Thanks, Dave
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
David W. Roberts                                     office 406-994-4548
Professor and Head                                      FAX 406-994-3190
Department of Ecology                         email droberts at montana.edu
Montana State University
Bozeman, MT 59717-3460