public Rail FindOrCreateRail(Point s, Point t)
{
var p0 = s;
var p1 = t;
var t1 = new SymmetricSegment(p0, p1);
Rail rail;
if (RailDictionary.TryGetValue(t1, out rail))
{
return(rail);
}
var t2 = new SymmetricSegment(p1, p0);
if (RailDictionary.TryGetValue(t2, out rail))
{
return(rail);
}
// no rail exists // roman: please check that this code really can be commented out and does need to be fixed instead
/*
* var q0 = VisGraph.GetPointOfVisGraphVertex(s);
* var q1 = VisGraph.GetPointOfVisGraphVertex(t);
* if (q0 == null || q1 == null)
* {
* //no visgraph vertex found
* }
* else
* {
* var edge = VisGraph.FindEdge(q0.Point, q1.Point);
* }*/
return(CreateRail(p0, p1));
}
public Rail FindRail(Point s, Point t)
{
var p0 = s;
var p1 = t;
var ss = new SymmetricSegment(p1, p0);
Rail rail;
RailDictionary.TryGetValue(ss, out rail);
return(rail);
}
public Rail CreateRail(Point ep0, Point ep1)
{
var st = new SymmetricSegment(ep0, ep1);
Rail rail;
if (RailDictionary.TryGetValue(st, out rail))
{
return(rail);
}
var ls = new LineSegment(ep0, ep1);
rail = new Rail(ls, ZoomLevel);
RailTree.Add(rail.BoundingBox, rail);
RailDictionary.Add(st, rail);
return(rail);
}
public Rail FindOrCreateRail(Point s, Point t)
{
var p0 = s;
var p1 = t;
var t1 = new SymmetricSegment(p0, p1);
Rail rail;
if (RailDictionary.TryGetValue(t1, out rail))
{
return(rail);
}
var t2 = new SymmetricSegment(p1, p0);
if (RailDictionary.TryGetValue(t2, out rail))
{
return(rail);
}
return(CreateRail(p0, p1));
}