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| This is a micro-howto about how to create 3D TINs from 3D vector points.
| | * See the [[Triangle Mesh]] wiki page. |
| The resulting TIN is saved as a DXF file, that can be imported into GRASS or used with CAD programs.
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| - NOTE: this was only tested on Linux machines!
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| First you need to install Paraview (http://www.paraview.org) and MeshLab (http://meshlab.sourceforge.net/).
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| Then,
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| 1 - Export your 3d points as a VTK file;
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| 2 - In Paraview, open the vtk file, click on Apply, then go to Filters-Alphabetical-Delaunay 2D (need to click apply again). click on the name of the just-created mesh and go to file-save data. Save it as a PLY file.
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| 3 - Open the PLY in MEshLab and save as a DXF. If you open the dxf in a text editor, you will see the lovely 3DFACE. :)
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| If imported it back into GRASS, it will be imported as FACES.
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| good luck!
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| [[Category:FAQ]] | | [[Category:FAQ]] |