public static Mesh ToRhino(DB.Mesh mesh)
{
if (mesh is null)
{
return(null);
}
var result = new Mesh();
result.Vertices.Capacity = mesh.Vertices.Count;
result.Vertices.AddVertices(mesh.Vertices.Convert(AsPoint3d));
var faceCount = mesh.NumTriangles;
result.Faces.Capacity = faceCount;
for (int t = 0; t < faceCount; ++t)
{
var triangle = mesh.get_Triangle(t);
result.Faces.AddFace
(
(int)triangle.get_Index(0),
(int)triangle.get_Index(1),
(int)triangle.get_Index(2)
);
}
return(result);
}
public static Mesh ToRhino(DB.Mesh mesh)
{
if (mesh.NumTriangles < 1)
{
return(null);
}
var result = new Mesh();
result.Vertices.AddVertices(mesh.Vertices.Select(x => ToRhino(x)));
for (int t = 0; t < mesh.NumTriangles; ++t)
{
var triangle = mesh.get_Triangle(t);
var meshFace = new MeshFace
(
(int)triangle.get_Index(0),
(int)triangle.get_Index(1),
(int)triangle.get_Index(2)
);
result.Faces.AddFace(meshFace);
}
return(result);
}
// must return an array to make mesh double sided
public static Mesh3D[] RevitMeshToHelixMesh(Autodesk.Revit.DB.Mesh rmesh)
{
List <int> indices_front = new List <int>();
List <int> indices_back = new List <int>();
List <Point3D> vertices = new List <Point3D>();
for (int i = 0; i < rmesh.NumTriangles; ++i)
{
MeshTriangle tri = rmesh.get_Triangle(i);
for (int k = 0; k < 3; ++k)
{
Point3D new_point = RevitPointToWindowsPoint(tri.get_Vertex(k));
bool new_point_exists = false;
for (int l = 0; l < vertices.Count; ++l)
{
Point3D p = vertices[l];
if ((p.X == new_point.X) && (p.Y == new_point.Y) && (p.Z == new_point.Z))
{
indices_front.Add(l);
new_point_exists = true;
break;
}
}
if (new_point_exists)
{
continue;
}
indices_front.Add(vertices.Count);
vertices.Add(new_point);
}
int a = indices_front[indices_front.Count - 3];
int b = indices_front[indices_front.Count - 2];
int c = indices_front[indices_front.Count - 1];
indices_back.Add(c);
indices_back.Add(b);
indices_back.Add(a);
}
List <Mesh3D> meshes = new List <Mesh3D>();
meshes.Add(new Mesh3D(vertices, indices_front));
meshes.Add(new Mesh3D(vertices, indices_back));
return(meshes.ToArray());
}
static Rhino.Geometry.Mesh ToRhino(this Autodesk.Revit.DB.Mesh mesh)
{
var result = new Rhino.Geometry.Mesh();
result.Vertices.AddVertices(mesh.Vertices.ToRhino());
for (int t = 0; t < mesh.NumTriangles; ++t)
{
var triangle = mesh.get_Triangle(t);
var meshFace = new MeshFace
(
(int)triangle.get_Index(0),
(int)triangle.get_Index(1),
(int)triangle.get_Index(2)
);
result.Faces.AddFace(meshFace);
}
return(result);
}
