Hi Peter, you have to disable the "Map Scalars" check button in the display tab to avoid the use of a lookup table.
Best regards Soeren -------- Original-Nachricht -------- > Datum: Thu, 18 Jun 2009 16:16:08 +0200 > Von: "Peter Löwe" <[email protected]> > An: "Sören Gebbert" <[email protected]>, [email protected] > Betreff: Re: [GRASS-user] r.out.vtk RGB / input issue > 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 -- 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
