public override void ComputeIntersections(EdgeCollection edges, SegmentIntersector si, bool testAllSegments)
{
for (IEdgeEnumerator i0 = edges.GetEnumerator(); i0.MoveNext();)
{
Edge edge0 = i0.Current;
for (IEdgeEnumerator i1 = edges.GetEnumerator(); i1.MoveNext();)
{
Edge edge1 = i1.Current;
if (testAllSegments || edge0 != edge1)
{
ComputeIntersects(edge0, edge1, si);
}
}
}
}
private void InsertUniqueEdges(EdgeCollection edges)
{
for (IEdgeEnumerator i = edges.GetEnumerator(); i.MoveNext(); )
{
Edge e = i.Current;
InsertUniqueEdge(e);
}
}
private void Add(EdgeCollection edges, object edgeSet)
{
for (IEdgeEnumerator i = edges.GetEnumerator(); i.MoveNext();)
{
Edge edge = i.Current;
Add(edge, edgeSet);
}
}
private void Add(EdgeCollection edges)
{
for (IEdgeEnumerator i = edges.GetEnumerator(); i.MoveNext();)
{
Edge edge = i.Current;
// edge is its own group
Add(edge, edge);
}
}
public override void ComputeIntersections(EdgeCollection edges0,
EdgeCollection edges1, SegmentIntersector si)
{
for (IEdgeEnumerator i0 = edges0.GetEnumerator(); i0.MoveNext();)
{
Edge edge0 = i0.Current;
for (IEdgeEnumerator i1 = edges1.GetEnumerator(); i1.MoveNext();)
{
Edge edge1 = i1.Current;
ComputeIntersects(edge0, edge1, si);
}
}
}
/// <summary>
/// Update the IM with the sum of the IMs for each component.
/// </summary>
private void UpdateIM(IntersectionMatrix im)
{
for (IEdgeEnumerator ei = isolatedEdges.GetEnumerator(); ei.MoveNext();)
{
Edge e = ei.Current;
e.UpdateIM(im);
}
for (IEnumerator ni = nodes.Iterator(); ni.MoveNext();)
{
RelateNode node = (RelateNode)ni.Current;
node.UpdateIM(im);
node.updateIMFromEdges(im);
}
}