Geology: Difference between revisions

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* {{cmd|ps.map}} for cartography
* {{cmd|ps.map}} for cartography
* {{cmd|v.vol.rst}} for 3D raster voxel interpolation
* {{cmd|raster3dintro}}: Introduction to 3D raster processing
: see also r3.* commands
* {{cmd|nviz}}: Native 3D visualization and animation suite
* {{cmd|v.out.vtk}}, {{cmd|r.out.vtk}}, and {{cmd|r3.out.vtk}}: Export to VTK format for ParaView or other 3D visualization software
* ...
* ...



Revision as of 01:19, 3 December 2008

Examples

Strike-and-dip symbols

See the IconSymbols wiki page

  • geology/strike_line,box,triangle,circle:
  • ps.map can take rotation angle from an attribute column for each site with the vpoints rotatecolumn instruction; for d.graph you can prepare a command file with a custom rotation for each point using v.out.ascii, v.db.select, or the v.out.ascii.db addon script. Note that GRASS uses the Cartesian convention for rotation angles, i.e. CCW from east. Convert from compass angles (CW from north) with:
    theta = 90 - degrees_true
You could possibly write a small db.execute script to populate a new column with this conversion by way of a SQL query. (and post it here :)
  • to make open symbols set the fill color to 'none'.
  • to make a double sided dip symbol draw the same symbol twice with 180 rotation the second time.

Modules of interest

see also r3.* commands
  • nviz: Native 3D visualization and animation suite
  • v.out.vtk, r.out.vtk, and r3.out.vtk: Export to VTK format for ParaView or other 3D visualization software
  • ...

Links

  • ...