Clamping the spline length

[GetUpKidAK]

Hi,

Not sure if this is possible or if I'm just struggling, as the API doesn't really help all that much. I'm looking to clamp the length of a Bezier spline at runtime.

The user will drag a helper object and the aim is to draw a curve from the start point to this object up to a set distance, at which point the curve will stop drawing any further until the user drags out a shorter curve. I can see a Clamp method which doesn't appear to do anything, and I'm at a loss as to what the Extrapolate method does.

Any ideas?!

Thanks,

Ash

[_Aka_]

Hi,
Here is a method I quickly coded that does what you want. It surely can be enhanced:

Code:

    private static bool RemoveExcess(CurvySpline spline, Vector3 terminatorWorldPosition)     {         if (spline.IsInitialized == false)             return false;         //The position at which the spline should stop         Vector3 nearestSplinePointToTerminator;         float terminatorTf = spline.GetNearestPointTF(terminatorWorldPosition, out nearestSplinePointToTerminator);         //The index of the last segment to keep, all following segements are removed         int terminatorSegmentIndex = spline.TFToSegmentIndex(terminatorTf);         //remove all control points beyong the terminator         int segmentsCount = spline.Count;         for (int segmentIndex = segmentsCount - 1; segmentIndex >= terminatorSegmentIndex; segmentIndex--)             spline.Delete(spline.Segments[segmentIndex].NextControlPoint);         //Add the last control point         spline.Add(nearestSplinePointToTerminator);         return true;     }