public LineSweeperBase(IEnumerable <Polyline> obstacles, Point sweepDirection)
{
Obstacles = obstacles;
SweepDirection = sweepDirection;
DirectionPerp = sweepDirection.Rotate(-Math.PI / 2);
EventQueue = new BinaryHeapWithComparer <SweepEvent>(this);
ObstacleSideComparer = new ObstacleSideComparer(this);
LeftObstacleSideTree = new RbTree <SegmentBase>(ObstacleSideComparer);
RightObstacleSideTree = new RbTree <SegmentBase>(ObstacleSideComparer);
}
protected void RemoveLeftSide(LeftObstacleSide side)
{
ObstacleSideComparer.SetOperand(side);
LeftObstacleSideTree.Remove(side);
}
protected void InsertLeftSide(LeftObstacleSide side)
{
ObstacleSideComparer.SetOperand(side);
LeftObstacleSideTree.Insert((side));
}
protected void InsertRightSide(RightObstacleSide side)
{
ObstacleSideComparer.SetOperand(side);
RightObstacleSideTree.Insert(side);
}
protected void RemoveRightSide(RightObstacleSide side)
{
ObstacleSideComparer.SetOperand(side);
RightObstacleSideTree.Remove(side);
}