| public static IsWindingInside ( WindingRule rule, int n ) : bool | ||
| rule | WindingRule | |
| n | int | |
| Résultat | bool | |
private void AddRightEdges(ActiveRegion regUp, MeshUtils.Edge eFirst, MeshUtils.Edge eLast, MeshUtils.Edge eTopLeft, bool cleanUp)
{
bool flag = true;
MeshUtils.Edge edge = eFirst;
do
{
AddRegionBelow(regUp, edge._Sym);
edge = edge._Onext;
}while (edge != eLast);
if (eTopLeft == null)
{
eTopLeft = RegionBelow(regUp)._eUp._Rprev;
}
ActiveRegion activeRegion = regUp;
MeshUtils.Edge edge2 = eTopLeft;
while (true)
{
ActiveRegion activeRegion2 = RegionBelow(activeRegion);
edge = activeRegion2._eUp._Sym;
if (edge._Org != edge2._Org)
{
break;
}
if (edge._Onext != edge2)
{
_mesh.Splice(edge._Oprev, edge);
_mesh.Splice(edge2._Oprev, edge);
}
activeRegion2._windingNumber = activeRegion._windingNumber - edge._winding;
activeRegion2._inside = Geom.IsWindingInside(_windingRule, activeRegion2._windingNumber);
activeRegion._dirty = true;
if (!flag && CheckForRightSplice(activeRegion))
{
Geom.AddWinding(edge, edge2);
DeleteRegion(activeRegion);
_mesh.Delete(edge2);
}
flag = false;
activeRegion = activeRegion2;
edge2 = edge;
}
activeRegion._dirty = true;
if (cleanUp)
{
WalkDirtyRegions(activeRegion);
}
}
private void ComputeWinding(ActiveRegion reg)
{
reg._windingNumber = RegionAbove(reg)._windingNumber + reg._eUp._winding;
reg._inside = Geom.IsWindingInside(_windingRule, reg._windingNumber);
}
