internal void ExtendEdgeChain(TransientGraphUtility transUtil, VisibilityVertex paddedBorderVertex
, VisibilityVertex targetVertex, Rectangle limitRect, bool routeToCenter)
{
// Extend the edge chain to the opposite side of the limit rectangle.
transUtil.ExtendEdgeChain(targetVertex, limitRect, this.MaxVisibilitySegment, this.pointAndCrossingsList, this.IsOverlapped);
// In order for Nudger to be able to map from the (near-) endpoint vertex to a PortEntry, we must
// always connect a vertex at UnpaddedBorderIntersect to the paddedBorderVertex, even if routeToCenter.
var unpaddedBorderVertex = transUtil.FindOrAddVertex(UnpaddedBorderIntersect);
transUtil.FindOrAddEdge(unpaddedBorderVertex, paddedBorderVertex, this.unpaddedToPaddedBorderWeight);
if (routeToCenter)
{
// Link the CenterVertex to the vertex at UnpaddedBorderIntersect.
transUtil.ConnectVertexToTargetVertex(ObstaclePort.CenterVertex, unpaddedBorderVertex, OutwardDirection, InitialWeight);
}
}
internal void ExtendEdgeChain(TransientGraphUtility transUtil, VisibilityVertex targetVertex, Directions dirToExtend, Rectangle limitRect) {
// Extend the edge chain to the opposite side of the limit rectangle.
StaticGraphUtility.Assert(PointComparer.Equal(this.Point, targetVertex.Point)
|| (PointComparer.GetPureDirection(this.Point, targetVertex.Point) == dirToExtend)
, "input dir does not match with to-targetVertex direction", transUtil.ObstacleTree, transUtil.VisGraph);
var extendOverlapped = IsOverlapped;
if (extendOverlapped)
{
// The initial vertex we connected to may be on the border of the enclosing obstacle,
// or of another also-overlapped obstacle. If the former, we turn off overlap now.
extendOverlapped = transUtil.ObstacleTree.PointIsInsideAnObstacle(targetVertex.Point, dirToExtend);
}
// If we're inside an obstacle's boundaries we'll never extend past the end of the obstacle
// due to encountering the boundary from the inside. So start the extension at targetVertex.
SegmentAndCrossings segmentAndCrossings = GetSegmentAndCrossings(this.IsOverlapped ? targetVertex : this.Vertex, dirToExtend, transUtil);
transUtil.ExtendEdgeChain(targetVertex, limitRect, segmentAndCrossings.Item1, segmentAndCrossings.Item2, extendOverlapped);
}
internal void ExtendEdgeChain(TransientGraphUtility transUtil, VisibilityVertex targetVertex, Directions dirToExtend, Rectangle limitRect)
{
// Extend the edge chain to the opposite side of the limit rectangle.
StaticGraphUtility.Assert(PointComparer.Equal(this.Point, targetVertex.Point) ||
(PointComparer.GetPureDirection(this.Point, targetVertex.Point) == dirToExtend)
, "input dir does not match with to-targetVertex direction", transUtil.ObstacleTree, transUtil.VisGraph);
var extendOverlapped = IsOverlapped;
if (extendOverlapped)
{
// The initial vertex we connected to may be on the border of the enclosing obstacle,
// or of another also-overlapped obstacle. If the former, we turn off overlap now.
extendOverlapped = transUtil.ObstacleTree.PointIsInsideAnObstacle(targetVertex.Point, dirToExtend);
}
// If we're inside an obstacle's boundaries we'll never extend past the end of the obstacle
// due to encountering the boundary from the inside. So start the extension at targetVertex.
SegmentAndCrossings segmentAndCrossings = GetSegmentAndCrossings(this.IsOverlapped ? targetVertex : this.Vertex, dirToExtend, transUtil);
transUtil.ExtendEdgeChain(targetVertex, limitRect, segmentAndCrossings.Item1, segmentAndCrossings.Item2, extendOverlapped);
}
internal void ExtendEdgeChain(TransientGraphUtility transUtil, VisibilityVertex paddedBorderVertex
, VisibilityVertex targetVertex, Rectangle limitRect, bool routeToCenter) {
// Extend the edge chain to the opposite side of the limit rectangle.
transUtil.ExtendEdgeChain(targetVertex, limitRect, this.MaxVisibilitySegment, this.pointAndCrossingsList, this.IsOverlapped);
// In order for Nudger to be able to map from the (near-) endpoint vertex to a PortEntry, we must
// always connect a vertex at UnpaddedBorderIntersect to the paddedBorderVertex, even if routeToCenter.
var unpaddedBorderVertex = transUtil.FindOrAddVertex(UnpaddedBorderIntersect);
transUtil.FindOrAddEdge(unpaddedBorderVertex, paddedBorderVertex, this.unpaddedToPaddedBorderWeight);
if (routeToCenter) {
// Link the CenterVertex to the vertex at UnpaddedBorderIntersect.
transUtil.ConnectVertexToTargetVertex(ObstaclePort.CenterVertex, unpaddedBorderVertex, OutwardDirection, InitialWeight);
}
}
