Find difference between two 3D shapes using devDept Eyeshot

Question

What's the best algorithm to find the difference in two three dimensional shapes loaded in devDept Eyeshot?

I have loaded the two shapes from CAD files in Eyeshot and want to highlight the difference in the shapes.

Thanks in advance.

Answer 1

So, here is a quick way of doing it. (At least what I think you're asking for) This function will take meshA and subtract any overlapping volume of meshB out of it. It returns a List of Meshes, as it is possible to "chop" meshA into multiple pieces by subtracting a single volume. I think the difference function will organize pieces by volume into the list, but I am NOT 100% on that.

public List<Mesh> solidSubtract(ref Mesh meshA, ref Mesh meshB)
{
  List<Mesh> subtractedMeshes = new List<Mesh>();
  Solid solidA = meshA.ConvertToSolid();
  Solid solidB = meshB.ConvertToSolid();
  Solid[] difference = Solid.Difference(solidA, solidB);
  foreach (Solid sld in difference)
  {
    subtractedMeshes.Add(sld.ConvertToMesh());
  }
  return subtractedMeshes;
}