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How to use Knowledge Advisor to measure and output the porcupine curvature?

How to use Knowledge Advisor to measure and output the porcupine curvature?

How to use Knowledge Advisor to measure and output the porcupine curvature?

(OP)
Hi~

I try to use "Measures→curvature(crv: Curve, pt: Point):Real" in the button "Edit action" in the window "Toolbar→Reactive features→Reaction" to measre and output the porcupine curvature , but I don't know how to do step by step.

Another problem is how to measure and output the porcupine curvature of a certain point on a curve or the Gaussian curvature of a certain point on a surface. This point is a intersection of two lines on a surface and can be selected by mouse.

If there is similar example, that will be a great help.
Thank you!

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