How to Get XYZ by the UV on Surface?

[845179011]

Hello,

I need the perpendicular of a XYZ point to the Plane. I trying to make it by Plane.Project() method, but this method output the UV position on the plane. How can I get XYZ projected point by the UV point?

Thanks.

[jeremytammik · Accepted solution]

https://thebuildingcoder.typepad.com/blog/2011/03/converting-between-2d-uv-and-3d-xyz-coordinates.ht...

[845179011]

Thanks.

Because of no Evaluate() Method of class Plane. I get the XYZ point by following method. It works.

Plane plane1 = Plane.CreateByNormalAndOrigin(refFace1.FaceNormal,refFace1.Origin);
UV uv1;
double d1;
plane1.Project(arcBegin, out uv1, out d1);
XYZ projectPt1 = plane1.Origin + uv1.U * plane1.XVec + uv1.V * plane1.YVec;