GRASS and Paraview: Difference between revisions

From GRASS-Wiki
Jump to navigation Jump to search
(+RGB visualization)
Line 21: Line 21:


[[Image:LausanneDemoDataset3dParaview_10.png|thumb|center|300px|3D groundwater flow]]
[[Image:LausanneDemoDataset3dParaview_10.png|thumb|center|300px|3D groundwater flow]]
== RGB visualization ==
Data export with {{cmd|r.out.vtk}}:
r.out.vtk input=dsm_s_michele elevation=dsm_s_michele \
          rgbmaps=ofd_s_michele.red,ofd_s_michele.green,ofd_s_michele.blue \
          out=s_michele_color.vtk
Load into Paraview:
paraview --data=s_michele_color.vtk
* In Paraview, click "Apply"
* Select the "Display" tab and choose "Color by" to switch from input scalars to rgb scalars
* Disable the "Map Scalars" check button in the display tab to avoid the use of a lookup table


== Creating Stereo anaglyphs ==
== Creating Stereo anaglyphs ==

Revision as of 12:10, 11 January 2012

3D visualization of GRASS data with Paraview

Download Paraview at http://www.paraview.org (available for Linux, MacOSX and MS-Windows) (screenshot gallery)

2D/3D Raster/voxel export

2D/3D Vector export

Visualization

Start Paraview, load the VTK data,... it is fairly intuitive to use. (don't hesitate to expand this part)

paraview --data=/tmp/threelayer.vtk
3D groundwater flow
3D groundwater flow

RGB visualization

Data export with r.out.vtk:

r.out.vtk input=dsm_s_michele elevation=dsm_s_michele \
          rgbmaps=ofd_s_michele.red,ofd_s_michele.green,ofd_s_michele.blue \
          out=s_michele_color.vtk

Load into Paraview:

paraview --data=s_michele_color.vtk
  • In Paraview, click "Apply"
  • Select the "Display" tab and choose "Color by" to switch from input scalars to rgb scalars
  • Disable the "Map Scalars" check button in the display tab to avoid the use of a lookup table

Creating Stereo anaglyphs

See also