/// <summary>
/// this function might change the shape's loose polylines by inserting new points
/// </summary>
void FillVisibilityGraphUnderShape(Shape shape) {
//going depth first
var children = shape.Children;
foreach (Shape child in children)
FillVisibilityGraphUnderShape(child);
TightLooseCouple tightLooseCouple;
Polyline looseBoundary = shapesToTightLooseCouples.TryGetValue(shape, out tightLooseCouple) ? tightLooseCouple.LooseShape.BoundaryCurve as Polyline : null;
Shape looseShape = tightLooseCouple != null ? tightLooseCouple.LooseShape : looseRoot;
var obstacles = new Set<Polyline>(looseShape.Children.Select(c => c.BoundaryCurve as Polyline));
var portLocations = RemoveInsidePortsAndSplitBoundaryIfNeeded(looseBoundary);
//this run will split the polyline enough to route later from the inner ports
var tmpVisGraph = new VisibilityGraph();
var coneSpanner = new ConeSpanner(new Polyline[] {}, tmpVisGraph, coneAngle, portLocations, looseBoundary);
coneSpanner.Run();
//now run the spanner again to create the correct visibility graph around the inner obstacles
tmpVisGraph = new VisibilityGraph();
coneSpanner = new ConeSpanner(obstacles, tmpVisGraph, coneAngle, portLocations, looseBoundary) {
Bidirectional = Bidirectional && obstacles.Count>0
};
coneSpanner.Run();
ProgressStep();
foreach (VisibilityEdge edge in tmpVisGraph.Edges)
TryToCreateNewEdgeAndSetIsPassable(edge, looseShape);
AddBoundaryEdgesToVisGraph(looseBoundary);
// if (obstacles.Count > 0)
// SplineRouter.ShowVisGraph(tmpVisGraph, obstacles, null, null);
}
internal void CalculateWholeVisibilityGraphOnExistingGraph() {
activePolygons = new List<Polygon>(AllPolygons());
foreach (Polyline polylineLocal in ObstacleCalculator.LooseObstacles)
VisibilityGraph.AddHole(polylineLocal);
AlgorithmBase visibilityGraphGenerator;
if (UseSpanner) {
visibilityGraphGenerator = new ConeSpanner(ObstacleCalculator.LooseObstacles, VisibilityGraph)
{ConeAngle = ConeSpannerAngle};
}
else {
visibilityGraphGenerator = new InteractiveTangentVisibilityGraphCalculator(new List<Polygon>(),
activePolygons,
visibilityGraph);
}
visibilityGraphGenerator.Run();
}
