LineSweeperForPortLocations(IEnumerable <Polyline> obstacles, Point direction, Point coneRsDir, Point coneLsDir,
VisibilityGraph visibilityGraph, IEnumerable <Point> portLocations)
: base(obstacles, direction)
{
this.visibilityGraph = visibilityGraph;
ConeRightSideDirection = coneRsDir;
ConeLeftSideDirection = coneLsDir;
coneSideComparer = new ConeSideComparer(this);
leftConeSides = new RbTree <ConeSide>(coneSideComparer);
rightConeSides = new RbTree <ConeSide>(coneSideComparer);
PortLocations = portLocations;
}