[GRASS-user] r3.out.vtk for paraview

[Francois Chartier]

I have tried without the advanced options and the error message is that
Permission Denied.


(Wed Nov 21 21:37:26 2018)

r3.out.vtk input=nov817tension100 at Toronto output=vtk
top=GTA_DEM_Raster at PERMANENT bottom=Rock at Toronto
vtk: Permission denied
Converts 3D raster maps into the VTK-ASCII format.
Usage:
 r3.out.vtk [-psmocl] [input=name[,name,...]] [output=name]
   [null=value] [top=string] [bottom=string]
[rgbmaps=name[,name,...]]
   [vectormaps=name[,name,...]] [zscale=value]
[precision=value]
   [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
  -p   Create VTK pointdata instead of VTK celldata
(celldata is default)
  -s   Create 3D elevation output with a top and a bottom
surface, both raster maps are required.
  -m   Use 3D raster mask (if exists) with input maps
  -o   Scale factor affects the origin
  -c   Correct the coordinates to match the VTK-OpenGL
precision
  -l   Do not convert the top-bottom resolution in case of
lat long projection to meters
Parameters:
       input   3D raster map(s) to be converted to VTK-ASCII
data format
      output   Name for VTK-ASCII output file

On Wed, Nov 21, 2018, 15:19 Markus Neteler <neteler at osgeo.org wrote:

> On Wed, Nov 21, 2018 at 1:45 PM Francois Chartier
> <fra.chartier at gmail.com> wrote:
> >
> > I created 3 rgb maps using the same DEM file. should i be using 3
> different Dem or raster files instead?
> > Wouldnt it make more sense to be using RGB files developped based on the
> 3d raster (even if that option doesnt exist).
>
> Maybe there is a misunderstanding? The RGB parameter is for draping a
> (color) image over the DEM.
>
> See for example:
> https://grasswiki.osgeo.org/wiki/GRASS_and_Paraview#RGB_visualization
>
> (in the 3D case I am not sure what to drape in color over a volume but
> it could be some extra parameter).
>
> Markus
>
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