Import governmental terrain data (DEM/DGM) and work with UTM32 coordinates

SketchUp Pro
2

Another interesting task, recently was another in which someone wanted to get a 3D mesh from a LAS file (Lidar). Follow that discussion to understand the steps you need to take.

STEPS:

  • First of all, I imported half of your data (ie first 1,000,000 points) into a Google Sheets file. I saved them in a CSV file, with commas as a separator between the 3 numbers.

points_125848
points_125848945×837 261 KB

  • In CloudCompare I imported the CSV file, generated the 3D surface and saved as a PLY file.

cc-mesh_124934
cc-mesh_1249341673×867 148 KB

  • In MeshLab I simplified the 3D mesh from PLY file, reducing it from 2,000,000 faces to 50,000 and I exported as a OBJ file.

ml-simp_125048
ml-simp_1250481516×1036 289 KB

  • In SketchUp, I used Universal Importer and imported the OBJ file, without reducing the number of faces.

skp mesh_125807
skp mesh_1258071504×839 515 KB

Your txt file has 2,000,000 points, probably you could use the TIG plugin Coords-Tag from Datum to import them and create points in SketchUp, which you can then use with TopoShaper to generate a 3D surface, but I think you would need a very powerful computer for that.

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