BrepFace in C# and how to get its BoundingBox correctly

Baris · April 21, 2021, 10:13pm

Hi,

I am struggling with getting the correct BoundingBox in C#.
The expected one:

The ones I get:

Code:

private void RunScript(Brep brep, List<Plane> planes, ref object Sec, ref object Boxes)
  {
    var sectionTree = new DataTree<BrepFace>();
    var boxes = new DataTree<BoundingBox>();

    double tol = Rhino.RhinoDoc.ActiveDoc.ModelAbsoluteTolerance;
    for (int i = 0; i < planes.Count; i++)
    {
      Curve[] crvs; Point3d[] pts;
      Rhino.Geometry.Intersect.Intersection.BrepPlane(brep, planes[i], tol, out crvs, out pts);

      Brep temp = brep.Faces[0].Split(crvs, tol);
      for (int j = 0; j < temp.Faces.Count; j++)
      {
        temp.Faces[j].ShrinkFace(BrepFace.ShrinkDisableSide.ShrinkAllSides);
        boxes.Add(temp.Faces[j].GetBoundingBox(true));
        sectionTree.Add(temp.Faces[j]);
      }
    }
    Sec = sectionTree;

    Boxes = boxes;
  }

Thanks everybody!

File:20210412_GetBBox.gh (24.2 KB)