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CAD tip CAD tip # 6563:

Question CAD 
 %  platform  category 
Q - question

Creating an intersection curve of two terrain surfaces.

A - answer When you have two terrain models, or a terrain plus a 3D object (e.g. a DTM touching a building object), you can create an intersection line where both surfaces touch.

The procedure for getting such 3D curve entity - using a volume surface and its zero contour - is described in the first part of the posting "How to to cut surface of a 3D body" (in Czech, and its Google translation) on the blog

Prùseènice povrchù

100% *  CAD 
5.3.2009    9832×  
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applies to: Civil 3D 2009 ·

See also:
Tip 13944:Intersection of a 3D spline with a plane in Fusion 360.
Tip 13150:How to hatch selected objects including overlays and islands?
Tip 13087:3DintCurves - intersections of curves with 3D solids.
Tip 12836:How to suppress snapping when inserting symbols and families in Revit?
Tip 12771:Simplification of an assembly in Fusion 360 - the shrinkwrap function

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