[GRASS-user] Elevation/bathymetry raster maps

[Rich Shepard]

Looking at the raster and raster addon modules I don't see one that will
allow more elevation/depth 'slices' for a given range. r.resample appears to
reduce the 'slices'; can it be used to also increase the number?

A related question is how GRASS sets the 'slice' range for assignment to a
color in the spectrum (elevation and water in these cases).

Specifically, I have a raster map with a range of depth/elevation altitudes
from -32.55505 to 595.1976 feet. Can I determine the number of 'slices'
within that range and use the water colors from minimum to zero and the
elevation colors from 1 to maximum? I want to display higher resolution in
the depths and the adjacent terrestrial elevations with a greater range of
colors to better communicate the channel and immediate river bank topology.

TIA,

Rich