public void StitchPolygons(LucygenPolygonSet polys)
{
LucygenEdgeSet oldEdges = polys.createEdgeSet();
List <int> oldVertices = oldEdges.GetUniqueVertices();
List <int> newVertices = cloneVertices(oldVertices);
LucygenEdgeSet newEdges = oldEdges.clone();
for (int i = 0; i < oldEdges.Count; i++)
{
LucygenEdge oldEdge = oldEdges[i];
LucygenEdge newEdge = newEdges[i];
//Make sure that the vertices in newEdge
//are the ones we recently cloned, instead
//of the old vertices.
for (int j = 0; j < 2; j++)
{
int oldVertex = oldEdge.m_sharedVertices[j];
int index = oldVertices.IndexOf(oldVertex);
newEdge.m_sharedVertices[j] = newVertices[index];
}
//Create new polys along the stitched edge. These
//will connect the original poly to its former neighbor.
LucygenPolygon stitchPoly1 = new LucygenPolygon(oldEdge.m_sharedVertices[0],
oldEdge.m_sharedVertices[1],
oldEdge.m_sharedVertices[0]);
LucygenPolygon stitchPoly2 = new LucygenPolygon(oldEdge.m_sharedVertices[1],
oldEdge.m_sharedVertices[1],
oldEdge.m_sharedVertices[0]);
oldEdge.m_innerPolygon.ReplaceNeighbor(oldEdge.m_outerPolygon, stitchPoly2);
oldEdge.m_outerPolygon.ReplaceNeighbor(oldEdge.m_innerPolygon, stitchPoly1);
m_LucygenPolygons.Add(stitchPoly1);
m_LucygenPolygons.Add(stitchPoly2);
}
//Swap to the new vertices on the inner polys.
foreach (LucygenPolygon poly in polys)
{
for (int i = 0; i < 3; i++)
{
int vertID = poly.m_vertices[i];
if (!oldVertices.Contains(vertID))
{
continue;
}
int vertIndex = oldVertices.IndexOf(vertID);
poly.m_vertices[i] = newVertices[vertIndex];
}
}
}
public LucygenEdgeSet clone()
{
LucygenEdgeSet clone = new LucygenEdgeSet();
foreach (LucygenEdge edge in this)
{
clone.Add(edge.clone());
}
return(clone);
}
public LucygenEdgeSet createEdgeSet()
{
LucygenEdgeSet edgeSet = new LucygenEdgeSet();
foreach (LucygenPolygon polygon in this)
{
foreach (LucygenPolygon neighbor in polygon.m_neighbors)
{
if (this.Contains(neighbor))
{
continue;
}
LucygenEdge edge = new LucygenEdge(polygon, neighbor);
edgeSet.Add(edge);
}
}
return(edgeSet);
}
