The advantage of this module is that it allows visualizing the shaded map without a need to create a new raster which would combine both. Comparing to creating shaded relief as semi-transparent overlay on the color raster map, this module gives result with more saturated colors.
The input for this module can be created for example using
r.slope.aspect or
r.relief
.
aspect
map in the North Carolina sample
dataset is used to hillshade the elevation
map:
g.region raster=aspect -p d.mon wx0 d.shade shade=aspect color=elevation
Figure: A detail of raster created by applying shading effect of aspect to elevation raster map from North Carolina dataset elevation map
g.region raster=elevation r.relief input=elevation output=elevation_shaded_relief d.mon wx1 d.shade shade=elevation_shaded_relief color=elevation
haxby
color table.