[GRASS-dev] GRASS_COMPRESSOR=BZIP2 in winGRASS

Helmut Kudrnovsky hellik at web.de
Tue Sep 20 01:19:21 PDT 2016


>> r.in.gdal and GRASS_COMPRESSOR=BZIP2 and GRASS_INT_ZLIB=9
>
>Note that GRASS_INT_ZLIB affects only ZLIB compression. 

copy/paste error; should be added to the sentence before:

GRASS_COMPRESSOR=ZLIB and GRASS_INT_ZLIB=9

>If you want to save a lot of disk space, you can convert FCELL maps to
>CELL maps, e.g. for temperature values rounding to Celsius * 10, then
>check again which compressor best fits your needs. In previous tests I
>found that BZIP2 only gives me a disk space advantage for large maps
>with >10000 columns. Also, it seems that BZIP2 might compress integer
>maps better than fp maps. 

will try to convert and test size.

thanks.





-----
best regards
Helmut
--
View this message in context: http://osgeo-org.1560.x6.nabble.com/GRASS-COMPRESSOR-BZIP2-in-winGRASS-tp5286534p5286838.html
Sent from the Grass - Dev mailing list archive at Nabble.com.


More information about the grass-dev mailing list