//------------------------------------------------------------------------------
private cInt PopScanbeam()
{
cInt Y = m_Scanbeam.Y;
m_Scanbeam = m_Scanbeam.Next;
return Y;
}
//------------------------------------------------------------------------------
private void InsertScanbeam(cInt Y)
{
if( m_Scanbeam == null )
{
m_Scanbeam = new Scanbeam();
m_Scanbeam.Next = null;
m_Scanbeam.Y = Y;
}
else if( Y > m_Scanbeam.Y )
{
Scanbeam newSb = new Scanbeam();
newSb.Y = Y;
newSb.Next = m_Scanbeam;
m_Scanbeam = newSb;
} else
{
Scanbeam sb2 = m_Scanbeam;
while( sb2.Next != null && ( Y <= sb2.Next.Y ) ) sb2 = sb2.Next;
if( Y == sb2.Y ) return; //ie ignores duplicates
Scanbeam newSb = new Scanbeam();
newSb.Y = Y;
newSb.Next = sb2.Next;
sb2.Next = newSb;
}
}
//------------------------------------------------------------------------------
void DisposeScanbeamList()
{
while ( m_Scanbeam != null ) {
Scanbeam sb2 = m_Scanbeam.Next;
m_Scanbeam = null;
m_Scanbeam = sb2;
}
}
//------------------------------------------------------------------------------
protected override void Reset()
{
base.Reset();
m_Scanbeam = null;
m_ActiveEdges = null;
m_SortedEdges = null;
DisposeAllPolyPts();
LocalMinima lm = m_MinimaList;
while (lm != null)
{
InsertScanbeam(lm.Y);
lm = lm.Next;
}
}
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
}