Hi Sören, thanks for your fast help - the patch works.
However, only limited success on the paraview-side (Paraview 3.4.0) > In paraview 3.x select the display tab and choose "Color by" to switch > from input scalars to rgb scalars. This works, but results in a strangely colored image which bears little resemblance to the visualisation in GRASS with d.rgb or r.composite. How can a similar coloring scheme be achieved in Paraview like the one for the source data in GRASS ? Peter -------- Original-Nachricht -------- > Datum: Thu, 18 Jun 2009 13:09:58 +0200 > Von: "Sören Gebbert" <[email protected]> > An: [email protected], [email protected] > Betreff: Re: [GRASS-user] r.out.vtk RGB / input issue > Hello Peter, > i have checked this issue. > The behavior of r.out.vtk is correct. > > An input must be provided, this is not optional. > To change this, you have to apply this little patch: > > =================================================================== > --- parameters.c (Revision 37861) > +++ parameters.c (Arbeitskopie) > @@ -29,6 +29,7 @@ > void set_params() > { > param.input = G_define_standard_option(G_OPT_R_INPUTS); > + param.input->required = NO; > > > > If you use the rgb and the input parameter (which is the default), > then you have to choose which data has should be displayed in your > visualization software. By default, the input scalars are the "active" > scalar array in the vtk output file. > > e.g: > In paraview 3.x select the display tab and choose "Color by" to switch > from input scalars to rgb scalars. > > Best regards > Soeren > > -------- Original-Nachricht -------- > > Datum: Wed, 17 Jun 2009 15:18:23 +0200 > > Von: [email protected] > > An: [email protected] > > Betreff: [GRASS-user] r.out.vtk RGB / input issue > > > hi, > > > > i am using v.out.vtk on grass6.3 on suse. > > > > trying to export 2.5d rgb-maps to paraview using r.out.vtk always ends > up > > with an error message: > > > > According to the module's manual it should be possible to export a > RGBmap > > + dem by using the parameters > > > > rgbmaps=redmap,bluemap,greenmap elevation=my_dem output=result.vtk > > > > However, the module reports that the INPUT parameter has to be provided. > > > > trying > > > > input=rgbmap rgbmaps=redmap,bluemap,greenmap elevation=my_dem > > output=result.vtk > > > > results in the same as > > > > input=rgbmap elevation=my_dem output=result.vtk > > > > In both cases "result.vtk" is displayed with interpolated false colors. > > > > How can a RGB composite created in GRASS properly be transferred and > > displayed in Paraview ? > > > > Peter > > -- > > Dr. Peter Löwe > > <[email protected]> > > > > > > > > > > > > GMX FreeDSL Komplettanschluss mit DSL 6.000 Flatrate und > Telefonanschluss > > für nur 17,95 Euro/mtl.!* http://portal.gmx.net/de/go/dsl02 > > _______________________________________________ > > grass-user mailing list > > [email protected] > > http://lists.osgeo.org/mailman/listinfo/grass-user > > -- > GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! > Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01 -- Dr. Peter Löwe <[email protected]> GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01 _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
