Gridded surface to TIN (Irregular triangles rather than regular/gridded triangles)


Is there any chance we can have the option to export a gridded surface to TIN? Currently the TIN export is more like a TRN due to the nature of the gridded data source. Unfortunately AutoCAD Civil 3D just cannot cope with large surfaces with so many triangles so I am looking for a more intelligent/efficient TIN with irregular triangles as opposed to regular triangles. Essentially I would like large triangles in flat areas and smaller triangles where detail is required.

I have tried making dense contours and creating a TIN from the contours that the results are not great as you lose all the detail. I've also tried exporting to XYZ with simplification enabled; which is great but the upper limit in Civil 3D is 1 million points (or 2 million triangles) and I can't seem to figure a way of controlling that maximum points at export.

Any suggestions would be welcome.


Best Answer

  • bmg_bobbmg_bob Global Mapper Programmer Posts: 1,986
    Answer ✓

    We have an open feature request for this functionality (item #17460). I have added your information to the request -- having more users who request a new function helps increase its priority for implementation.  We will post a message on this thread when the status of the feature request changes.



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