static internal IEnumerable <GeometryObject> ToHost(this Rhino.Geometry.Mesh mesh)
{
List <XYZ> faceVertices = new List <XYZ>(4);
var builder = new TessellatedShapeBuilder();
builder.Target = TessellatedShapeBuilderTarget.AnyGeometry;
builder.Fallback = TessellatedShapeBuilderFallback.Mesh;
Rhino.Geometry.Mesh[] pieces = mesh.DisjointMeshCount > 1 ?
mesh.SplitDisjointPieces() :
new Rhino.Geometry.Mesh[] { mesh };
foreach (var piece in pieces)
{
piece.Faces.ConvertNonPlanarQuadsToTriangles(Revit.ModelAbsolutePlanarTolerance, RhinoMath.UnsetValue, 5);
bool isOriented = false;
bool hasBoundary = false;
bool isSolid = piece.IsClosed && piece.IsManifold(true, out isOriented, out hasBoundary) && isOriented;
var vertices = piece.Vertices.ToPoint3dArray();
builder.OpenConnectedFaceSet(isSolid);
foreach (var face in piece.Faces)
{
faceVertices.Add(vertices[face.A].ToHost());
faceVertices.Add(vertices[face.B].ToHost());
faceVertices.Add(vertices[face.C].ToHost());
if (face.IsQuad)
{
faceVertices.Add(vertices[face.D].ToHost());
}
builder.AddFace(new TessellatedFace(faceVertices, ElementId.InvalidElementId));
faceVertices.Clear();
}
builder.CloseConnectedFaceSet();
}
IList <GeometryObject> objects = null;
try
{
builder.Build();
objects = builder.GetBuildResult().GetGeometricalObjects();
}
catch (Autodesk.Revit.Exceptions.ApplicationException e)
{
Debug.Fail(e.Source, e.Message);
objects = new List <GeometryObject>();
}
return(objects);
}
