public List <PlanarFace> GetMeshedFaces() { Mesh mesh = GetMesh(); TessellatedShapeBuilder builder = new TessellatedShapeBuilder(); builder.OpenConnectedFaceSet(false); List <XYZ> args = new List <XYZ>(3); XYZ[] triangleCorners = new XYZ[3]; for (int i = 0; i < mesh.NumTriangles; ++i) { MeshTriangle triangle = mesh.get_Triangle(i); triangleCorners[0] = triangle.get_Vertex(0); triangleCorners[1] = triangle.get_Vertex(1); triangleCorners[2] = triangle.get_Vertex(2); TessellatedFace tesseFace = new TessellatedFace(triangleCorners, ElementId.InvalidElementId); if (builder.DoesFaceHaveEnoughLoopsAndVertices( tesseFace)) { builder.AddFace(tesseFace); } } builder.CloseConnectedFaceSet(); TessellatedShapeBuilderResult result = builder.Build( TessellatedShapeBuilderTarget.AnyGeometry, TessellatedShapeBuilderFallback.Mesh, ElementId.InvalidElementId); var geo = result.GetGeometricalObjects(); var solids = GeoHelper.GetSolidsInModel(geo, GeoHelper.SolidVolumnConstraint.Any); var faces = GeoHelper.GetSurfaces(solids.Keys); return(faces.OfType <PlanarFace>().ToList()); }