[GRASS-dev] A couple of r.colors ideas

[Michael Barton]

I'm in the process of creating a new GUI for creating raster color  
tables, and ran into a couple of function ideas that would be helpful  
in the context of a GUI wrapper and (I think) for other users.

1) I realized that there is no simple way to 'export' an existing  
color table to a standard color table rules file, although r.info can  
take a rules file and turn it into a color table. You can copy a color  
table between raster files, but it also would be handy to be able to  
export one.

2) Since the various d.* modules are in redevelopment, one idea that  
seems handy would be to be able to explicitly apply a color table  
during display

e.g.: d.rast map=nice_raster colortable=nice_colors.txt

This way, a map could be displayed with multiple color tables without  
overwriting a default color table. The same concept might also be  
applied to vectors.

If these sound interesting to people, but will take some time to  
implement, I'll put them in the svn tracker as enhancements.

Michael
______________________________
C. Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University
Tempe, AZ  85287-2402
USA

voice: 480-965-6262; fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton