GRASS logo

NAME - Converts (rasterize) a TIN map into a raster map


vector, raster, TIN, conversion

SYNOPSIS --help input=name output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui]


Allow output files to overwrite existing files
Print usage summary
Verbose module output
Quiet module output
Force launching GUI dialog


input=name [required]
Name of input TIN map
Name of input TIN map
output=name [required]
Name for output raster map

Table of contents

DESCRIPTION converts (rasterizes) a TIN map into a raster map.


Example of usage (North Carolina sample data set). Preparation of a TIN (Delaunay triangulation) from geodetic points, then rasterization of the TIN:
# work on a copy of the original geodetic points map
g.copy vector=geodetic_pts,mygeodetic_pts

# data preparation: convert z-values from string to double format
v.db.addcolumn map=mygeodetic_pts columns="Z_VALUE_D double precision"
v.db.update map=mygeodetic_pts column=Z_VALUE_D qcolumn=Z_VALUE

# verify: should show identical z-values map=mygeodetic_pts columns=cat,Z_VALUE,Z_VALUE_D

# convert 2D vector point map to 3D based on attribute input=mygeodetic_pts output=mygeodetic_pts_3d column=Z_VALUE_D

# create TIN
v.delaunay input=mygeodetic_pts_3d output=mygeodetic_pts_3d_delaunay

# rasterize TIN to 500m resolution raster map
g.region vector=mygeodetic_pts_3d_delaunay res=500 -p input=mygeodetic_pts_3d_delaunay output=mygeodetic_pts_3d_delaunay
r.colors mygeodetic_pts_3d_delaunay color=srtm_plus




Antonio Alliegro, Alexander Muriy
Example: Markus Neteler


Available at: source code (history)

Latest change: Sun May 1 15:34:14 2022 in commit: ba4fb54ae0451966bc8767ffe8dee4dd049334ba

Main index | Vector index | Topics index | Keywords index | Graphical index | Full index

© 2003-2022 GRASS Development Team, GRASS GIS 8.0.3dev Reference Manual