[GRASS-dev] [GRASS GIS] #2349: CELL raster format: make ZLIB level 3 standard compression instead of RLE

[GRASS GIS]

#2349: CELL raster format: make ZLIB level 3 standard compression instead of RLE
-------------------------+--------------------------------------------------
 Reporter:  neteler      |       Owner:  grass-dev@…              
     Type:  enhancement  |      Status:  new                      
 Priority:  critical     |   Milestone:  7.0.0                    
Component:  Raster       |     Version:  svn-releasebranch70      
 Keywords:               |    Platform:  All                      
      Cpu:  Unspecified  |  
-------------------------+--------------------------------------------------

Comment(by glynn):

 Replying to [ticket:2349 neteler]:

 > Proposal: make ZLIB, level 3 the standard compression.

 r61380 implements the following behaviour:

  * zlib compression is the default. Set GRASS_INT_ZLIB=0 to use RLE
 compression.

  * The compression level can be set via GRASS_ZLIB_LEVEL, whose value
 should be an integer between 0 and 9. If not set (or if the value cannot
 be parsed as an integer), zlib's default compression level will be used
 (lib/gis/flate.c:333, if a different default is preferred).

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/2349#comment:5>
GRASS GIS <http://grass.osgeo.org>