NAME
r.out.ppm3 - converts 3 GRASS raster layers (R,G,B) to a PPM
image file, using the current region.
Usage:
r.out.ppm3 [-qc] red=name green=name blue=name output=name
Flags:
-q Run quietly
-c Store the region in the image as comments
Parameters:
- red=name
- Name of raster map layer to be used for RED component.
- green=name
- Name of raster map layer to be used for GREEN component.
- blue=name
- Name of raster map layer to be used for BLUE component.
- output=filename.ppm
- Name of PPM file to be written (use out=- for stdout).
This program converts a GRASS raster file to a PPM image file
using the the current region.
To get the full area of the raster map, do:
g.region rast=[mapname]
before running r.out.ppm3.
NOTES
One pixel is written for each cell value, so if ew_res and ns_res
differ, the aspect ratio of the resulting image will be off.
SEE ALSO
r.out.ppm
r.in.ppm
d.rgb
AUTHOR
Glynn Clements
Based upon r.out.ppm and d.rgb.
Last changed: $Date$