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

SOURCE CODE

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

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       © 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual