private PolyTree PostProcessPunchedLand(PolyTree punchedLand)
{
void TagSectorSnapshotAndGeometryContext(PolyNode node)
{
node.visibilityGraphNodeData.LocalGeometryView = this;
node.Childs.ForEach(TagSectorSnapshotAndGeometryContext);
}
void TagBoundingVolumeHierarchies(PolyNode node)
{
var contourEdges = node.Contour.Zip(node.Contour.RotateLeft(), IntLineSegment2.Create).ToArray();
var bvh = BvhILS2.Build(contourEdges);
node.visibilityGraphNodeData.ContourBvh = bvh;
node.Childs.ForEach(TagBoundingVolumeHierarchies);
}
punchedLand.Prune(HoleDilationRadius);
TagSectorSnapshotAndGeometryContext(punchedLand);
TagBoundingVolumeHierarchies(punchedLand);
return(punchedLand);
}