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CAD tip CAD tip # 2103:

Question CAD 
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Q - question

How to convert a spline, arc or circle to a segmented polyline?

A - answer Plain AutoCAD doesn't offer this conversion. You can use the SplineConvert add-on utility by CAD Studio ( which converts (explodes) splines, ellipses, arcs and circles (plus derived objects) to 2D polylines (LWPOLYLINE) with specified tolerance of straight segments.

In older versions of AutoCAD (and with no options and risk of loosing some drawing features) you can also save the drawing in the R12 format and then read it back.

100% *  CAD 
16.4.2002    42405x  
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applies to: AutoCAD 2002 ·

See also:
Tip 10537:Conversion of Mesh to T-Spline fails in Fusion360.
Tip 10231:How to draw spiral in AutoCAD LT?
Tip 9512:How to convert a point cloud to an editable 3D CAD model (mesh)?
Tip 9357:Intersection of a 3D curve with a 3D surface in AutoCAD.
Tip 8962:Project 2D curve to a 3D sphere.

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