Offset curve created weird result at corners

Hi guys,

do you know why the corners give this result when offset?

offseting.gh (14.1 KB)

because your initial curves are not planar (A), maybe first project them on the Offsetting plane (B), then offset them


offseting_Re.gh (18.0 KB)

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For one thing, your two curves are not planar. For another thing, standard GH Offset Curve often fails, especially with negative distance. Clipper PolyOffset works though.

You don’t have to go to so much trouble to find the plane. Planar (for curves) and Is Planar (for surfaces) have plane outputs.

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