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CAD tip CAD tip # 12239:

   
Question CAD 
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Q - question

How to extract isolines from a surface of a 3D object?
A - answer With the command SURFEXTRACTCURVE cou can create a spatial surface curve on a 3D solid or 3D surface. Select the source 3D object and use the Direction option to switch the U, V isoline direction to extract the requested curve.

The resulting curve is a spline for smooth sorfaces. Use the SPLINEDIT command to convert it to a polyline. See the example of a blue polyline and the original purple spline:

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16.5.2019    8483×  
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See also:
Tip 13091:3DSolSz - list of dimensions of selected 3D solids.
Tip 11939:How to extract pipe centerlines from 3D point clouds?
Tip 9917:Cannot create terrain model from attached point cloud in AutoCAD Civil 3D 2015.
Tip 9735:How to convert a .THING file to a 3D CAD model?
Tip 9512:How to convert a point cloud to an editable 3D CAD model (mesh)?
Selected tip: What are the Autodesk ASR files?


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How to increase contrast between a constrained and underconstrained curve in an Inventor sketch? « | » UnfoldRS - unfold 3D surfaces to 2D in AutoCAD.


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