public static void segs_Remove(List <seg3d> segs, seg3d p)
{
List <seg3d> rm = new List <seg3d>();
List <seg3d> add = new List <seg3d>();
foreach (seg3d q in segs)
{
//List<seg3d> onlyp = new List<seg3d>();
List <seg3d> onlyq = new List <seg3d>();
//List<seg3d> common = new List<seg3d>();
SegmentsOverlap3d so = ut.CalcSegmentsOverlap3d(p, q, null, onlyq, null);
Debug.Assert(
(so == SegmentsOverlap3d.SameSegment) ||
(so == SegmentsOverlap3d.None) ||
(so == SegmentsOverlap3d.OppositeDirection) ||
(so == SegmentsOverlap3d.P_On_Q) ||
(so == SegmentsOverlap3d.Q_On_P) ||
(so == SegmentsOverlap3d.Overlap)
);
switch (so)
{
case SegmentsOverlap3d.SameSegment:
{
rm.Add(q);
break;
}
case SegmentsOverlap3d.None:
{
break;
}
case SegmentsOverlap3d.OppositeDirection:
{
break;
}
case SegmentsOverlap3d.P_On_Q:
case SegmentsOverlap3d.Q_On_P:
case SegmentsOverlap3d.Overlap:
{
rm.Add(q);
foreach (seg3d ns in onlyq)
{
segs_Add(add, ns);
}
break;
}
}
}
foreach (seg3d s in rm)
{
segs.Remove(s);
}
foreach (seg3d s in add)
{
segs.Add(s);
}
}
public static void segs_Add(List <seg3d> segs, seg3d p, int level)
{
List <seg3d> add = new List <seg3d>();
// start with the whole seg. we'll remove pieces of it wherever overlaps occur
add.Add(p);
foreach (seg3d q in segs)
{
//List<seg3d> onlyp = new List<seg3d>();
//List<seg3d> onlyq = new List<seg3d>();
List <seg3d> common = new List <seg3d>();
SegmentsOverlap3d so = ut.CalcSegmentsOverlap3d(p, q, null, null, common);
Debug.Assert(
(so == SegmentsOverlap3d.SameSegment) ||
(so == SegmentsOverlap3d.None) ||
(so == SegmentsOverlap3d.OppositeDirection) ||
(so == SegmentsOverlap3d.P_On_Q) ||
(so == SegmentsOverlap3d.Q_On_P) ||
(so == SegmentsOverlap3d.Overlap)
);
switch (so)
{
case SegmentsOverlap3d.SameSegment:
{
segs_Remove(add, p);
break;
}
case SegmentsOverlap3d.None:
{
break;
}
case SegmentsOverlap3d.OppositeDirection:
{
break;
}
case SegmentsOverlap3d.P_On_Q:
case SegmentsOverlap3d.Q_On_P:
case SegmentsOverlap3d.Overlap:
{
foreach (seg3d ns in common)
{
segs_Remove(add, ns);
}
break;
}
}
if (add.Count == 0)
{
// nothing left. we must be done.
return;
}
}
foreach (seg3d s in add)
{
segs.Add(s);
}
}
