/// <summary>
/// finish the wrapping and cretae the intersection
/// </summary>
public void FinalizeIntersection(Polygon interPoly, ArbiterIntersection ai)
{
// check poly not null
if (interPoly != null)
{
this.WrappingHelpers = new List<Coordinates>();
Rect r = interPoly.CalculateBoundingRectangle();
Coordinates bl = new Coordinates(r.x, r.y);
Coordinates tr = new Coordinates(r.x + r.width, r.y + r.height);
Polygon sqPoly = this.CreateSquarePolygon(bl, tr).Inflate(1.0);
//interPoly = this.CreateIntersectionPolygon(interPoly);
//interPoly = interPoly.Inflate(0.05);
// retreive all exits involved in this intersection
Dictionary<IAreaSubtypeWaypointId, ITraversableWaypoint> exits = this.IntersectionExits(sqPoly);//interPoly);
// make sure the inter contains an exit
if (exits.Count > 0)
{
// make stopped exits, necessarily these are arbiter waypoints not perimeter points
List<ArbiterStoppedExit> ases = this.CreateStoppedExits(exits.Values);
// construct intersection id
ITraversableWaypoint[] exitArray = new ITraversableWaypoint[exits.Count];
exits.Values.CopyTo(exitArray, 0);
ArbiterIntersectionId aii = new ArbiterIntersectionId(exitArray[0].Exits[0].InterconnectId);
// determine incoming lanes
Dictionary<ArbiterLane, LinePath.PointOnPath> incoming = this.DetermineIncoming(interPoly);
// create the intersection
ai.IntersectionPolygon = interPoly;
ai.Center = interPoly.BoundingCircle.center;
ai.StoppedExits = ases;
ai.IncomingLanePoints = incoming;
ai.AllExits = exits;
ai.AllEntries = this.IntersectionEntries(sqPoly);
ai.PriorityLanes = this.DetermineInvolved(exits.Values, incoming);
// update poly
//this.UpdateIntersectionPolygon(ai);
try
{
List<Polygon> ps = new List<Polygon>();
foreach (ITraversableWaypoint itw in exits.Values)
{
foreach (ArbiterInterconnect ait in itw.Exits)
{
ps.Add(ait.TurnPolygon);
}
}
ai.IntersectionPolygon = this.GetIntersectionPolygon(ps, ai.AllExits, ai.AllEntries);
if (ai.IntersectionPolygon.IsComplex)
{
EditorOutput.WriteLine("Intersection polygon complex, defaulting");
throw new Exception("complex polygon exception");
}
}
catch (Exception)
{
EditorOutput.WriteLine("Error in union polygon generation, using better default");
try
{
this.UpdateIntersectionPolygon(ai);
}
catch (Exception)
{
EditorOutput.WriteLine("Error in my simple polygon generation, plain default");
List<Coordinates> cs = new List<Coordinates>();
foreach (ITraversableWaypoint itw in ai.AllEntries.Values)
cs.Add(itw.Position);
foreach (ITraversableWaypoint itw in ai.AllExits.Values)
{
cs.Add(itw.Position);
foreach (ArbiterInterconnect aint in itw.Exits)
{
cs.AddRange(aint.TurnPolygon);
}
}
ai.IntersectionPolygon = Polygon.GrahamScan(cs);
}
}
// add intersection
/*arn.ArbiterIntersections.Add(aii, ai);
// add to exit lookup
foreach (IAreaSubtypeWaypointId awi in exits.Keys)
arn.IntersectionLookup.Add(awi, ai);
// add to display objects
arn.DisplayObjects.Add(ai);
rd.AddDisplayObject(ai);*/
}
}
}