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CAD tip CAD tip # 12239:

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A
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:

ACAD
100% *CAD
16.5.2019    9731×  
applies to: AutoCAD ·

See also:
Tip 14560:JobTime for Autodesk Fusion - tracking time spent on a job.
Tip 14503:Compare the performance of creating arrays/patterns in Inventor.
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.


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