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Anyone know a TIN DEM file format commonly used?

In the context of a TIN DEM generator project, I am searching for a file format to save the TIN generated.

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My suggestion is UGRID: https://github.com/ugrid-conventions/ugrid-conventions

As the format is supported by MDAL (https://github.com/lutraconsulting/MDAL/blob/master/mdal/frmts/mdal_3di.cpp) which means you can visualise your mesh directly in QGIS.

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  • +1 Also since only Ugrid format supports projection in QGIS. Aug 20, 2022 at 0:09
  • since Ugrid is preferred, it probably would be a good idea to set it as the default format in QGIS. For example the default output format for TIN Mesh Creation Algorithm. Commenting here since I know this functionality is developed by Lutra Aug 20, 2022 at 0:16

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