#2349: CELL raster format: make ZLIB level 3 standard compression instead of RLE
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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 |
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At time, integer maps (CELL) are still compressed with RLE
This leads to a huge waste of disk space when it comes to large
data.
Proposal: make ZLIB, level 3 the standard compression.
At time we can enable the environment variable GRASS_INT_ZLIB
but it will use the default ZLIB level 6 compression which
is too CPU intensive. So a (user) control over this is important.
BTW: Manual of r.compress updated in r60814, needs to be backported.
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Ticket URL: <http://trac.osgeo.org/grass/ticket/2349>
GRASS GIS <http://grass.osgeo.org>
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