d.shade(1grass) GRASS GIS User's Manual d.shade(1grass)
NAME
d.shade - Drapes a color raster over an shaded relief or aspect map.
KEYWORDS
display, elevation, relief, hillshade, visualization
SYNOPSIS
d.shade
d.shade --help
d.shade shade=name color=name [brighten=integer] [--help] [--ver-
bose] [--quiet] [--ui]
Flags:
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog
Parameters:
shade=name [required]
Name of shaded relief or aspect raster map
color=name [required]
Name of raster to drape over relief raster map
Typically, this raster is elevation or other colorful raster
brighten=integer
Percent to brighten
Options: -99-99
Default: 0
DESCRIPTION
d.shade will drape a color raster map over a shaded relief map. In
place of shaded relief, any raster map can be used including aspect or
slope. The color raster map is usually an elevation raster map with
colorful color table (as opposed to gray scale color table). However,
any raster map can be used including categorical raster maps.
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.as-
pect or r.relief
.
NOTES
Refer to the d.his help page for more details; d.shade is simply a
frontend to that module.
EXAMPLES
In this example, the aspect map in the North Carolina sample dataset
location 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 In
this next example, a shaded relief raster map is created and used to
create a colorized hillshade:
g.region raster=elevation
r.relief input=elevation output=elevation_shaded_relief
d.mon wx1
d.shade shade=elevation_shaded_relief color=elevation
Interesting visualizations can be created using different color tables
for elevation raster map, for example using haxby color table.
SEE ALSO
d.his, g.pnmcomp, r.shade, r.slope.aspect, r.relief
wxGUI 3D viewer (NVIZ)
AUTHORS
Unknown; updated to GRASS 5.7 by Michael Barton
SOURCE CODE
Available at: d.shade source code (history)
Accessed: unknown
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GRASS 7.8.7 d.shade(1grass)
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