r3.cross.rast(1grass) | GRASS GIS User's Manual | r3.cross.rast(1grass) |
r3.cross.rast - Creates cross section 2D raster map from 3D raster map based on 2D elevation map
raster3d, profile, raster, voxel
r3.cross.rast
r3.cross.rast --help
r3.cross.rast [-m] input=string
elevation=string output=string
[--overwrite] [--help] [--verbose] [--quiet]
[--ui]
This module creates a cross section 2D map from one 3D raster
volume map based on a 2D elevation map. It checks if the value of the
elevation map is located in the z-coordinate space of the 3D map. If so, the
3D voxel value for this position is transferred to the related cross section
output map cell, otherwise the NULL value is set.
How r3.cross.rast works |
If the 2D and 3D region settings are different, the 2D resolution will be adjust to the 3D resolution.
To create a cut plane elevation map use r.mapcalc. Some examples:
g.region -d g.region res=150 res3=150 t=1000 b=0 tbres=100 # synthetic data, could be geological structures: r3.mapcalc "map3d = sin(row())+sin(col())+sin(depth()*depth())" #create a cutplane map r.mapcalc "cutplane = col()*10" #create the cross section map r3.cross.rast input=map3d elevation=cutplane output=crosssection
g.region, r.mapcalc, r3.mapcalc, r3.to.rast
Sören Gebbert
Available at: r3.cross.rast source code (history)
Accessed: Sunday Jan 22 07:36:49 2023
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