internal List <VisibilityEdge> GetAllGraphEdgesWithEndpointInInteriorOf(IEnumerable <Rectangle> rects,
double slack = 0.01)
{
var rtree = new RTree <Rectangle>();
foreach (var rect in rects)
{
var shrinkedRect = rect.Clone();
shrinkedRect.ScaleAroundCenter(1 - slack);
rtree.Add(shrinkedRect, shrinkedRect);
}
var edges = (from edge in PathRouter.GetAllEdgesVisibilityEdges()
let qrect1 = new Rectangle(edge.SourcePoint, edge.SourcePoint)
let qrect2 = new Rectangle(edge.TargetPoint, edge.TargetPoint)
where rtree.GetAllIntersecting(qrect1).Any() || rtree.GetAllIntersecting(qrect2).Any()
select edge).ToList();
return(edges);
}
internal List <VisibilityEdge> GetUnusedGraphEdges()
{
return(PathRouter.GetAllEdgesVisibilityEdges().Where(e => !PathRouter.IsEdgeUsed(e)).ToList());
}