[GRASS-dev] ps.map colortable

Casey Vandenberg wrote:

How easy would it be to implement an
option in the ps.map instructions for colortables so that
the user could decide if he/she wanted to use a discrete
colortable vs. a continuous color table (see attached).

Currently, to change the color bar from continuous to
discrete, I comment out the following lines in the ps_map.c
instructions. It would be nice if one could choose between
colortable_continuous vs colortable_discrete like one has
the choice between geogrid or grid when making a ps.map
file.

gedit ~/grass/ps/ps.map/ps_map.c

   /* do the colortable, if requested */
   if (PS.do_colortable) {
// if ( G_raster_map_is_fp(ct.name,
ct.mapset) ) //
    PS_fcolortable();
// else
       
   PS_colortable();
   }

I am trying to replicate your Discrete.png using the above patch &
the elevation.10m map from the Spearfish sample dataset, but failing.

Did you make a custom category (cats) file for your map containing the
discrete bands/ranges first?

Hamish