GRASS GIS manual: t.rast.out.vtk

Note: A new GRASS GIS stable version has been released: GRASS GIS 7.4, available here.
Updated manual page: here

NAME

t.rast.out.vtk - Exports space time raster dataset as VTK time series.

KEYWORDS

temporal, export, raster, VTK, time

SYNOPSIS

t.rast.out.vtk

t.rast.out.vtk --help

t.rast.out.vtk [-pcg] input=name directory=string [elevation=name] [where=sql_query] [null=float] [--help] [--verbose] [--quiet] [--ui]

Flags:

-p: Create VTK point data instead of VTK cell data (if no elevation map is given)
-c: Correct the coordinates to fit the VTK-OpenGL precision
-g: Export files using the space time dataset granularity for equidistant time between maps, where statement will be ignored
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

input=name [required]: Name of the input space time raster dataset
directory=string [required]: Path to the export directory
elevation=name: Name of input elevation raster map
where=sql_query: WHERE conditions of SQL statement without 'where' keyword used in the temporal GIS framework; Example: start_time > '2001-01-01 12:30:00'
null=float: Value to represent no data cell; Default: -99999.99

DESCRIPTION
EXAMPLE
SEE ALSO
AUTHOR

DESCRIPTION

This module exports all maps registered in a space time raster datasets as VTK legacy files using a numerical numbering scheme. The VTK files can be visualized with any VTK based visualize. Our preferred tool is ParaView. The VTK legacy files are created using r.out.vtk.

EXAMPLE

In this simple example we create several raster maps with random values and one elevation map. The random value raster maps are registered in a space time raster dataset. All maps of this space time raster dataset are exported using t.rast.out.vtk into the directory /tmp/test1.

mkdir /tmp/export
t.rast.out.vtk input=precip_abs expdir=/tmp/export elevation=elevation

ls -1 /tmp/export
000000_tempmean_monthly.vtk
000001_tempmean_monthly.vtk
000002_tempmean_monthly.vtk
000003_tempmean_monthly.vtk
000004_tempmean_monthly.vtk
000005_tempmean_monthly.vtk
000006_tempmean_monthly.vtk
000007_tempmean_monthly.vtk
000008_tempmean_monthly.vtk
000009_tempmean_monthly.vtk
000010_tempmean_monthly.vtk
000011_tempmean_monthly.vtk