Get U-position of nurbs curve point? 2004-06-18 - By Aloys Baillet
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Hello,
I think you can't!
The main reason is that control points are not on the curve, only knots are.
I would advice you to use the GetClosestCurvePosition method of the
NurbsCurveList object with the position of th control point : it will
return you the u value.
Good luck!
--
Aloys Baillet - R&D @ La Maison
--
Schoenberger wrote:
>Hi
>
>I'm trying to get the position of a nurbs point on a curve.
>Someting like a length from start of the curve to the point.
>I have a little script, that does it, but I need something that works
>with the object model.
>What I have:
> GetCurvePercentageAtKnotIndex "crvlist", MyPointIndex, perc
> clength = GetCurveLength("crvlist")
> PostionOnCurve = clength*perc/100
>
>Now I want that result, but with the object model.
>What I have found till now is:
>.Geometry.length
>.Geometry.curves(0).GetPercentageFromU
>.Geometry.curves(0).ControlPoints
>
>
>Perhaps I am stupid or missed something in the docs, but how to get the
>U position of a Control point?
>With the U position I could get the percentage and everything would be
>fine.
>
>
>Holger Sch�nberger
>technical director
>The day has 24 hours, if that does not suffice, I will take the night
>
>
>
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