[GRASS5] r.in.gdal and compression

[Markus Neteler]

Hi,

to enable compression for GDT_Byte/CELL_TYPE, I have made
following change:

grass/src/raster/r.in.gdal/main.c,v
retrieving revision 1.34
diff -u -r1.34 main.c
--- main.c      19 Mar 2004 11:29:46 -0000      1.34
+++ main.c      24 Mar 2004 13:47:12 -0000
@@ -614,7 +614,7 @@
         eGDT = GDT_Int32;
         complex = FALSE;
         G_set_cell_format(0);
-        raster_open_new_func = G_open_raster_new_uncompressed;
+        /* raster_open_new_func = G_open_raster_new_uncompressed;*/ /* ?? */
         break;

Results:

- original file (1.6MB)
     1629790 Mar 24 14:36 g1b05901.tif

- r.in.gdal old behaviour (37MB): 
ls -artl ~/grassdata/pat/neteler/cell | tail -2
    37307088 Mar 24 14:42 menegom

- r.in.gdal new behaviour (7.3MB):
ls -1 ~/grassdata/pat/neteler/cell | tail -1
     7334903 Mar 24 14:44 menegom

Even 7.3 MB are not exciting, but due to the RLE compression
used in GRASS (instead of deflate).

The same change (I guess) is necessary for

      case GDT_Int16:
      case GDT_UInt16:
        data_type = CELL_TYPE;

?!

Any foreseeable problems with that?
I don't understand why 'G_open_raster_new_uncompressed' was used.

 Markus