[GRASS5] 5.7: make GRASS_INT_ZLIB default?
neteler at itc.it
Mon Nov 22 11:04:04 EST 2004
On Fri, Nov 19, 2004 at 06:02:25PM +0000, Glynn Clements wrote:
> Markus Neteler wrote:
> > proposal for 5.7-CVS: make zlib compression instead of RLE the
> > default setting, probably modifying:
> > grass57/lib/gis > grep GRASS_INT_ZLIB *
> > opencell.c: COMPRESSION_TYPE = getenv("GRASS_INT_ZLIB") ? 2 : 1;
> > Are there objections?
> The most obvious problem is that raster maps will be unreadable on
> versions of GRASS which pre-date the addition of zlib support.
Isn't it possible then to
in the ZLIB-GRASS version and then read it with the older GRASS?
The change is similar to the LZW change some years ago (which went smoothly).
> Also, I don't know whether that feature has received any significant
Time to do that :-)
> > I am, however, not sure, how to apply such change (without
> > breaking things).
> COMPRESSION_TYPE = getenv("GRASS_INT_NOZLIB") ? 1 : 2;
Will change here for me at least.
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