GRASS logo

NAME

v.tin.to.rast - Converts (rasterize) a TIN map into a raster map

KEYWORDS

vector, raster, TIN, conversion

SYNOPSIS

v.tin.to.rast
v.tin.to.rast --help
v.tin.to.rast input=name output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

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

v.tin.to.rast converts (rasterizes) a TIN map into a raster map.

EXAMPLE

Example of v.tin.to.rast 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
v.db.select map=mygeodetic_pts columns=cat,Z_VALUE,Z_VALUE_D

# convert 2D vector point map to 3D based on attribute
v.to.3d 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
v.tin.to.rast input=mygeodetic_pts_3d_delaunay output=mygeodetic_pts_3d_delaunay
r.colors mygeodetic_pts_3d_delaunay color=srtm_plus

SEE ALSO

v.delaunay

AUTHORS

Antonio Alliegro, Alexander Muriy
Example: Markus Neteler

SOURCE CODE

Available at: v.tin.to.rast source code (history)

Latest change: Sunday May 01 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 8.2.0 Reference Manual