IEnumerable <PointPair> Edges()
{
var set = new Set <PointPair>();
foreach (var poly in Polylines)
{
for (var pp = poly.StartPoint; pp.Next != null; pp = pp.Next)
{
set.Insert(FlipCollapser.OrderedPair(pp));
}
}
return(set);
}
IEnumerable <PointPair> Edges()
{
var set = new Set <PointPair>();
foreach (var pp in Vertices())
{
if (pp.Next != null)
{
set.Insert(FlipCollapser.OrderedPair(pp));
}
}
return(set);
}
bool InsertPointsOnPolypoint(PolylinePoint pp, Dictionary <PointPair, List <Point> > splittingPoints, Metroline metroline)
{
var pointPair = FlipCollapser.OrderedPair(pp);
var reversed = pp.Point != pointPair.First;
List <Point> list;
if (!splittingPoints.TryGetValue(pointPair, out list))
{
return(false);
}
var endPolyPoint = pp.Next;
var poly = pp.Polyline;
if (reversed)
{
for (int i = list.Count - 1; i >= 0; i--)
{
if (polylineAcceptsPoint != null && !polylineAcceptsPoint(metroline, list[i]))
{
continue;
}
var p = new PolylinePoint(list[i])
{
Prev = pp, Polyline = poly
};
pp.Next = p;
pp = p;
}
}
else
{
for (int i = 0; i < list.Count; i++)
{
if (polylineAcceptsPoint != null && !polylineAcceptsPoint(metroline, list[i]))
{
continue;
}
var p = new PolylinePoint(list[i])
{
Prev = pp, Polyline = poly
};
pp.Next = p;
pp = p;
}
}
pp.Next = endPolyPoint;
endPolyPoint.Prev = pp;
return(true);
}