private static Point[] GetPathPointsFromIntersectingVisibility(ObstaclePortEntrance sourceEntrance, ObstaclePortEntrance targetEntrance) {
Point intersect;
if (!StaticGraphUtility.SegmentsIntersect(sourceEntrance.MaxVisibilitySegment, targetEntrance.MaxVisibilitySegment, out intersect)) {
return null;
}
if (sourceEntrance.HasGroupCrossingBeforePoint(intersect) || targetEntrance.HasGroupCrossingBeforePoint(intersect)) {
return null;
}
return new[] {
sourceEntrance.UnpaddedBorderIntersect,
intersect,
targetEntrance.UnpaddedBorderIntersect
};
}
