//------------------------------------------------------------------------------
private void BuildResult2(PolyTree polytree)
{
polytree.Clear();
//add each output polygon/contour to polytree ...
polytree.m_AllPolys.Capacity = m_PolyOuts.Count;
for (int i = 0; i < m_PolyOuts.Count; i++)
{
OutRec outRec = m_PolyOuts[i];
int cnt = PointCount(outRec.pts);
if (cnt < 3) continue;
FixHoleLinkage(outRec);
PolyNode pn = new PolyNode();
polytree.m_AllPolys.Add(pn);
outRec.polyNode = pn;
pn.m_polygon.Capacity = cnt;
OutPt op = outRec.pts;
for (int j = 0; j < cnt; j++)
{
pn.m_polygon.Add(op.pt);
op = op.prev;
}
}
//fixup PolyNode links etc ...
polytree.m_Childs.Capacity = m_PolyOuts.Count;
for (int i = 0; i < m_PolyOuts.Count; i++)
{
OutRec outRec = m_PolyOuts[i];
if (outRec.polyNode == null) continue;
if (outRec.FirstLeft == null)
polytree.AddChild(outRec.polyNode);
else
outRec.FirstLeft.polyNode.AddChild(outRec.polyNode);
}
}
//------------------------------------------------------------------------------
public static void AddPolyNodeToPolygons(PolyNode polynode, PolygonsClp polygons)
{
if (polynode.Contour.Count > 0)
polygons.Add(polynode.Contour);
foreach (PolyNode pn in polynode.Childs)
AddPolyNodeToPolygons(pn, polygons);
}
internal void AddChild(PolyNode Child)
{
int cnt = m_Childs.Count;
m_Childs.Add(Child);
Child.m_Parent = this;
Child.m_Index = cnt;
}