Surface Analysis User Defined Contour Data Constructor - ValueError: lineTypeId

Civil 3D
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5

Hi @l.florio,

Sorry to depart from the lineTypeId question, but I’m thinking ahead and wondering if the SurfaceAnalysisUserDefinedContourData class is going to get you to your ultimate goal of getting a polyline. I don’t think that class has the methods you’d need to create a polyline. Maybe this approach would work?

  1. Create a temporary TIN surface
  2. Paste the volume surface into the temporary TIN surface
  3. Use the ExtractContoursAt method with an elevation of 0
  4. Dispose of the temporary TIN surface
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