|SketchUp freezes when creating a surface mesh from contour lines imported from DWG/DXF.||Too many objects in the import file||In AutoCAD or Civil3D, cleanup the DWG/DXF file so you only need to objects needed for the import into SketchUp/SunDAT. This can be done by purging or deleting objects not needed in the DWG/DXF file.|
|Contour lines are too detailed with too many vertices. SketchUp is having difficulty to triangulating the vertices to create a mesh||In AutoCAD, reduce the number of vertices in a contour line by manually removing the vertices or using an AutoCAD LISP command called POLYFIT. See below on using POLYFIT.|
Also consider removing the contour lines by using the AutoCAD TRIM command.
|Your machine's hardware is not compatible to handle this type of performance.||Close other programs not in use.|
Run the project in SunDAT Web which can handle terrain creation easier.
Description and instructions: http://www.polyface.de/polyfit/Description.html
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