public static void SetPosition <TVertex2>(ref TVertex2 vert, ref Vector3 pos) where TVertex2 : struct, IVertex
{
IPositionVertex ipv = vert as IPositionVertex;
if (ipv != null)
{
ipv.SetPosition(pos);
vert = (TVertex2)ipv;
}
}
public static Vector3 GetPosition <TVertex2>(ref TVertex2 vertex) where TVertex2 : struct, IVertex
{
//if (vertex is IPositionVertex)
// return ((IPositionVertex)vertex).GetPosition();
IPositionVertex ipv = vertex as IPositionVertex;
if (ipv != null)
{
return(ipv.GetPosition());
}
return(Vector3.Zero);
}
public Mesh <Vertex3D> GenerateCentroidPointMesh()
{
// Doesn't rely on topology
int numTriangles = indices.Length / 3;
Vertex3D[] centroidVerts = new Vertex3D[numTriangles];
Vertex3D centroidVertex = new Vertex3D();
Mesh <Vertex3D> centroidMesh = new Mesh <Vertex3D>(centroidVerts);
int triangleIndex = 0;
for (int i = 0; i < numTriangles; ++i)
{
Vector3 centroid = Topology.CalculateCentroid(i);
IPositionVertex ipv = centroidVertex as IPositionVertex;
if (ipv != null)
{
ipv.SetPosition(centroid);
}
centroidMesh.vertices[triangleIndex++] = (Vertex3D)ipv;
}
return(centroidMesh);
}
