[Gdal-dev] r.out.gdal: SetColorInterpretation() not supported

[Markus Neteler]

Hi,

for some weeks we have a nice C implementation of r.out.gdal
in GRASS, but a color table problem remains:

GRASS 6.3.cvs (spearfish60): > r.out.gdal fields out=fields.tif
ERROR 6: SetColorInterpretation() not supported for this dataset.
 100%
Done!

GRASS 6.3.cvs (spearfish60): > r.info -t fields
datatype=CELL

GRASS 6.3.cvs (spearfish60): > r.info -r fields
min=1
max=63

The (probably) relevant line in the main.c file is:
    /* Set color interpretation. TODO: Implement this better ... */
    GDALSetRasterColorInterpretation(hBand, ((band + 3) % 4 + GCI_RedBand));

Maybe it fails on an 8 bit range?

Suggestion are welcome as colorized export is an important thing,
thanks
Markus