Constrain in GetPoint() problem

Rhino Developer
1

Hello everyone,

I am trying to know when the point of my Getpoint() is not on the mesh i used Constrain on.
The only output from Constrain is true but i need to know when the point is not Constrained.

Am i missing something ?

2

Hi @Yves_Gobinet,

If want to constrain point picking to a mesh, then make sure to set the allowPickingPointOffObject to false.

var gp = new GetPoint()
gp.Constrain(mesh, false);
// ...

Also, you can verify the picked point is on the mesh using Mesh.ClosestPoint.

var mesh_point = mesh.ClosestPoint(picked_point);
if (mesh_point.DistanceTo(picked_point) < my_tolerance)
{
  // ...
}

– Dale