[GRASS-dev] [GRASS GIS] #3200: r.colors is lacking color bars for all predefined colortables

[GRASS GIS]

#3200: r.colors is lacking color bars for all predefined colortables
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  Reporter:  milenan  |      Owner:  grass-dev@…
      Type:  defect   |     Status:  new
  Priority:  normal   |  Milestone:  7.0.6
 Component:  Default  |    Version:  7.0.5
Resolution:           |   Keywords:  r.colors, v.colors
       CPU:  x86-64   |   Platform:  MSWindows 8
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Comment (by annakrat):

 Replying to [comment:2 annakrat]:
 > The ppm is created, the problem is in g.ppmtopng, it crashed on windows
 during writing the png.

 The script generating thumbnails could be rewritten with PIL for example,
 instead of using g.ppmtopng. Or, ideally the functionality would be added
 to d.colortable to flip and rotate the table. Then the script would become
 quite short.

 Related ticket: #3156

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3200#comment:3>
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