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

       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: 2016-08-30 15:28:34 +0200 (Tue, 30 Aug 2016) $

SOURCE CODE

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

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       © 2003-2018 GRASS Development Team, GRASS GIS 7.4.0 Reference Manual