//------------------------------------------------------------------------------
private void DisposeIntersectNodes()
{
while (m_IntersectNodes != null)
{
IntersectNode iNode = m_IntersectNodes.next;
m_IntersectNodes = null;
m_IntersectNodes = iNode;
}
}
//------------------------------------------------------------------------------
private void SwapIntersectNodes(IntersectNode int1, IntersectNode int2)
{
TEdge e1 = int1.edge1;
TEdge e2 = int1.edge2;
IntPoint p = int1.pt;
int1.edge1 = int2.edge1;
int1.edge2 = int2.edge2;
int1.pt = int2.pt;
int2.edge1 = e1;
int2.edge2 = e2;
int2.pt = p;
}
//------------------------------------------------------------------------------
private void InsertIntersectNode(TEdge e1, TEdge e2, IntPoint pt)
{
IntersectNode newNode = new IntersectNode();
newNode.edge1 = e1;
newNode.edge2 = e2;
newNode.pt = pt;
newNode.next = null;
if (m_IntersectNodes == null) m_IntersectNodes = newNode;
else if (newNode.pt.Y > m_IntersectNodes.pt.Y)
{
newNode.next = m_IntersectNodes;
m_IntersectNodes = newNode;
}
else
{
IntersectNode iNode = m_IntersectNodes;
while (iNode.next != null && newNode.pt.Y < iNode.next.pt.Y)
iNode = iNode.next;
newNode.next = iNode.next;
iNode.next = newNode;
}
}
//------------------------------------------------------------------------------
private void ProcessIntersectList()
{
while (m_IntersectNodes != null)
{
IntersectNode iNode = m_IntersectNodes.next;
{
IntersectEdges(m_IntersectNodes.edge1,
m_IntersectNodes.edge2, m_IntersectNodes.pt, Protects.ipBoth);
SwapPositionsInAEL(m_IntersectNodes.edge1, m_IntersectNodes.edge2);
}
m_IntersectNodes = null;
m_IntersectNodes = iNode;
}
}
//------------------------------------------------------------------------------
private bool EdgesAdjacent(IntersectNode inode)
{
return (inode.edge1.nextInSEL == inode.edge2) ||
(inode.edge1.prevInSEL == inode.edge2);
}
public Clipper()
{
m_Scanbeam = null;
m_ActiveEdges = null;
m_SortedEdges = null;
m_IntersectNodes = null;
m_ExecuteLocked = false;
m_UsingPolyTree = false;
m_PolyOuts = new List<OutRec>();
m_Joins = new List<JoinRec>();
m_HorizJoins = new List<HorzJoinRec>();
m_ReverseOutput = false;
m_ForceSimple = false;
}