#1268: r.out.vtk does not work as desired for RGB images
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Reporter: voncasec | Owner: grass-dev@…
Type: enhancement | Status: new
Priority: normal | Milestone: 6.4.1
Component: Default | Version: svn-releasebranch64
Keywords: vtk | Platform: Linux
Cpu: x86-64 |
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r.out.vtk does not allow a user to export an RGB series of images to vtk
format without specifying a required image as well.
For example, running r.out.vtk for an rgb series, as described in the user
manual, returns the follwing:
{{{
r.out.vtk rgbmaps=Landsat_NIR,Landsat_Red,Landsat_Green
elevation=elevation.10m output=/tmp/out.vtk
ERROR:
Parameter 'input' (Name of input raster map(s)) is missing.
}}}
Running r.out.vtk for an rgb series as described below creates the VTK
file, but it is not viewable as an RGB image in Mayavi.
{{{
r.out.vtk input=FCIR_Composite
rgbmaps=Landsat_NIR,Landsat_Red,Landsat_Green elevation=elevation.10m
output=/tmp/out.vtk
}}}
To create the image for viewing in Mayavi, I currently have to convert the
image channels to rast3d layers (r.to.rast3), then export to vtk using the
r3.out.vtk option
{{{
r3.out.vtk top=elevation.10m bottom=elevation.10m
rgbmaps=rgbmaps=Landsat_NIR,Landsat_Red,Landsat_Green output=/tmp/out.vtk
}}}
Can the required option be changed with r.out.vtk so that it will not
prevent a user from exporting RGB channels only to vtk.
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Ticket URL: <http://trac.osgeo.org/grass/ticket/1268>
GRASS GIS <http://grass.osgeo.org>