//------------------------------------------------------------------------------
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 = new IntPoint(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, true);
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(int InitOptions = 0): base() //constructor
{
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<Join>();
m_GhostJoins = new List<Join>();
ReverseSolution = (ioReverseSolution & InitOptions) != 0;
StrictlySimple = (ioStrictlySimple & InitOptions) != 0;
PreserveCollinear = (ioPreserveCollinear & InitOptions) != 0;
#if use_xyz
ZFillFunction = null;
#endif
}