public static List <int> CreateFaceIndices <VERTEX, EDGE, FACE>(HBMesh <VERTEX, EDGE, FACE> mesh, int faceVertices)
where VERTEX : HBVertex, new()
where EDGE : HBEdge, new()
where FACE : HBFace, new()
{
int count = mesh.Faces.Count;
int size = mesh.Faces.Count * faceVertices;
List <int> indices = new List <int>(size);
for (int i = 0; i < count; i++)
{
int num = 0;
foreach (var v in mesh.Faces[i].Edge.EnumerateVertices())
{
int index = mesh.IndexOf(v);
if (index == -1)
{
continue;
}
indices.Add(index);
num++;
}
if (num != faceVertices)
{
throw new InvalidOperationException("Face did not have the expected number of vertices.");
}
}
return(indices);
}
public static List <int> CreateEdgeIndices <VERTEX, EDGE, FACE>(HBMesh <VERTEX, EDGE, FACE> mesh)
where VERTEX : HBVertex, new()
where EDGE : HBEdge, new()
where FACE : HBFace, new()
{
int count = mesh.Edges.Count;
List <int> indices = new List <int>(count / 2);
HashSet <HBEdge> set = new HashSet <HBEdge>();
for (int i = 0; i < count; i++)
{
var edge = mesh.Edges[i];
if (edge.Opposite == null)
{
continue;
}
if (set.Contains(edge))
{
continue;
}
var v0 = edge.Vertex;
var v1 = edge.Opposite.Vertex;
int i0 = mesh.IndexOf(v0);
int i1 = mesh.IndexOf(v1);
if (i0 == -1 || i1 == -1)
{
continue;
}
indices.Add(i0);
indices.Add(i1);
set.Add(edge.Opposite);
}
return(indices);
}