public TriangleHashSet StitchPolys(TriangleHashSet polys, out BoarderHashSet stitchedEdge)
{
TriangleHashSet stichedPolys = new TriangleHashSet();
stichedPolys.IterationIndex = Vertices.Count;
stitchedEdge = polys.CreateBoarderHashSet();
var originalVerts = stitchedEdge.RemoveDublicates();
var newVerts = CloneVertices(originalVerts);
stitchedEdge.Seperate(originalVerts, newVerts);
foreach (TriangleBoarder edge in stitchedEdge)
{
// Create new triangles along the edges to connect ones beside each other
var stitch_poly1 = new MeshTriangle(edge.OuterVertices[0],
edge.OuterVertices[1],
edge.InnerVertices[0]);
var stitch_poly2 = new MeshTriangle(edge.OuterVertices[1],
edge.InnerVertices[1],
edge.InnerVertices[0]);
// Add 'em to their neighbours
edge.InnerTriangle.UpdateNeighbour(edge.OuterTriangle, stitch_poly2);
edge.OuterTriangle.UpdateNeighbour(edge.InnerTriangle, stitch_poly1);
MeshTriangles.Add(stitch_poly1);
MeshTriangles.Add(stitch_poly2);
stichedPolys.Add(stitch_poly1);
stichedPolys.Add(stitch_poly2);
}
//Swap to the new vertices on the inner polys.
foreach (MeshTriangle poly in polys)
{
for (int i = 0; i < 3; i++)
{
int vert_id = poly.VertexIndices[i];
if (!originalVerts.Contains(vert_id))
{
continue;
}
int vert_index = originalVerts.IndexOf(vert_id);
poly.VertexIndices[i] = newVerts[vert_index];
}
}
return(stichedPolys);
}
public BoarderHashSet CreateBoarderHashSet()
{
BoarderHashSet boarderSet = new BoarderHashSet();
foreach (MeshTriangle triangle in this)
{
foreach (MeshTriangle neighbor in triangle.Neighbours)
{
if (this.Contains(neighbor))
{
continue;
}
TriangleBoarder boarder = new TriangleBoarder(triangle, neighbor);
boarderSet.Add(boarder);
}
}
return(boarderSet);
}