Parameter Range for EvaluateCurve & Curvature components?

Grasshopper
1

I’m trying to find tangents or curvatures of a curve ( a polyline), but the parameter range seems totally meaningless to me.

When I expected the parameter range to be between 0.0 to 1.0 it is somewhere near 0 to 247 or something meaningless. Why is that? It doesn’t look related to radians and not to degrees, so what is it?

There must be a secret formula defining the parameter range which is not being documented, for whatever reason.

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// Rolf

2

To set ‘t’ values between zero and one, right-click to “Reparameterize” the curve, either on the ‘C’ inputs or on the ‘Crv’ param itself, depending on how you want to use it.

3

Arghhhh.

Thanks!

// Rolf