t.rast.out.vtk(1)

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

KEYWORDS
temporal, export, output, 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
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

SEE ALSO
r.out.vtk, ParaView

AUTHOR
Sören Gebbert, Thünen Institute of Climate-Smart Agriculture

Last changed: $Date$

SOURCE CODE

Available at: t.rast.out.vtk source code (history)

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© 2003-2019 GRASS Development Team, GRASS GIS 7.8.0 Reference Manual