NAME¶

r3.cross.rast - Creates cross section 2D raster map from 3D raster map based on 2D elevation map.

KEYWORDS¶

raster3d, voxel

SYNOPSIS¶

r3.cross.rast r3.cross.rast help r3.cross.rast [-m] input=string elevation=string output=string [--overwrite] [-- verbose] [--quiet]

Flags:¶

-m

 

Use 3D raster mask (if exists) with input map

--overwrite

 

Allow output files to overwrite existing files

--verbose

 

Verbose module output

--quiet

 

Quiet module output

Parameters:¶

input=string

 

Input 3D raster map for cross section.

elevation=string

 

2D elevation map used to create the cross section map

output=string

 

Resulting cross section 2D raster map

DESCRIPTION¶

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.

NOTES¶

To create a cut plane elevation map use r.mapcalc. Some examples:

EXAMPLE¶

Simple Spearfish example¶

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

SEE ALSO¶

g.region, r.mapcalc, r3.mapcalc, r3.to.rast

AUTHOR¶

Sören Gebbert Last changed: $Date: 2013-03-26 22:08:02 +0100 (Tue, 26 Mar 2013) $ Full index © 2003-2014 GRASS Development Team