public void DetectRelation()
{
CIntersection pintersec = new CGeometry.CIntersection(_CEdge1, _CEdge2);
pintersec.DetectIntersection();
switch (pintersec.enumIntersectionType)
{
case CEnumIntersectionType.NoNo:
DetectPtEdge();
break;
case CEnumIntersectionType.FrFr:
this.pEnumDisMode = CEnumDisMode.FrFr;
this.cptEdgeDis = new CGeometry.CptEdgeDis
(0, 0, _CEdge1.FrCpt, _CEdge1, _CEdge2.FrCpt, _CEdge2, false);
break;
case CEnumIntersectionType.FrIn:
this.pEnumDisMode = CEnumDisMode.FrIn;
this.cptEdgeDis = _CEdge1.FrCpt.DistanceTo(_CEdge2, false, _CEdge1);
break;
case CEnumIntersectionType.FrTo:
this.pEnumDisMode = CEnumDisMode.FrTo;
this.cptEdgeDis = new CGeometry.CptEdgeDis
(0, 1, _CEdge1.FrCpt, _CEdge1, _CEdge2.ToCpt, _CEdge2, false);
break;
case CEnumIntersectionType.InFr:
this.pEnumDisMode = CEnumDisMode.InFr;
this.cptEdgeDis = _CEdge2.FrCpt.DistanceTo(_CEdge1, false, _CEdge2);
break;
case CEnumIntersectionType.InIn:
this.pEnumDisMode = CEnumDisMode.InIn;
this.cptEdgeDis = pintersec.IntersectCpt.DistanceTo(_CEdge2);
break;
case CEnumIntersectionType.InTo:
this.pEnumDisMode = CEnumDisMode.InTo;
this.cptEdgeDis = _CEdge2.ToCpt.DistanceTo(_CEdge1, false, _CEdge2);
break;
case CEnumIntersectionType.ToFr:
this.pEnumDisMode = CEnumDisMode.ToFr;
this.cptEdgeDis = new CGeometry.CptEdgeDis
(0, 0, _CEdge1.ToCpt, _CEdge1, _CEdge2.FrCpt, _CEdge2, false);
break;
case CEnumIntersectionType.ToIn:
this.pEnumDisMode = CEnumDisMode.ToIn;
this.cptEdgeDis = _CEdge1.ToCpt.DistanceTo(_CEdge2, false, _CEdge1);
break;
case CEnumIntersectionType.ToTo:
this.pEnumDisMode = CEnumDisMode.ToTo;
this.cptEdgeDis = new CGeometry.CptEdgeDis
(0, 1, _CEdge1.ToCpt, _CEdge1, _CEdge2.ToCpt, _CEdge2, false);
break;
case CEnumIntersectionType.Overlap:
DetectPtEdge();
this.pEnumDisMode = CEnumDisMode.Overlap;
break;
default:
break;
}
}
private void DetectPtEdge()
{
CEdge cedge1 = _CEdge1;
CEdge cedge2 = _CEdge2;
var FrcptEdgeDis = cedge1.FrCpt.DistanceTo(cedge2, false, cedge1);
var TocptEdgeDis = cedge1.ToCpt.DistanceTo(cedge2, false, cedge1);
var EdgeFrcptDis = cedge2.FrCpt.DistanceTo(cedge1, false, cedge2);
var EdgeTocptDis = cedge2.ToCpt.DistanceTo(cedge1, false, cedge2);
if (FrcptEdgeDis.dblDis <= TocptEdgeDis.dblDis &&
FrcptEdgeDis.dblDis <= EdgeFrcptDis.dblDis &&
FrcptEdgeDis.dblDis <= EdgeTocptDis.dblDis)
{
this.cptEdgeDis = FrcptEdgeDis;
if (FrcptEdgeDis.t == 0)
{
this.pEnumDisMode = CEnumDisMode.FrFr;
}
else if (FrcptEdgeDis.t == 1)
{
this.pEnumDisMode = CEnumDisMode.FrTo;
}
else
{
this.pEnumDisMode = CEnumDisMode.FrIn;
}
}
else if (
TocptEdgeDis.dblDis <= FrcptEdgeDis.dblDis &&
TocptEdgeDis.dblDis <= EdgeFrcptDis.dblDis &&
TocptEdgeDis.dblDis <= EdgeTocptDis.dblDis)
{
this.cptEdgeDis = TocptEdgeDis;
if (TocptEdgeDis.t == 0)
{
this.pEnumDisMode = CEnumDisMode.ToFr;
}
else if (TocptEdgeDis.t == 1)
{
this.pEnumDisMode = CEnumDisMode.ToTo;
}
else
{
this.pEnumDisMode = CEnumDisMode.ToIn;
}
}
else if (
EdgeFrcptDis.dblDis <= FrcptEdgeDis.dblDis &&
EdgeFrcptDis.dblDis <= TocptEdgeDis.dblDis &&
EdgeFrcptDis.dblDis <= EdgeTocptDis.dblDis)
{
this.cptEdgeDis = EdgeFrcptDis;
if (EdgeFrcptDis.t == 0)
{
this.pEnumDisMode = CEnumDisMode.FrFr;
}
else if (EdgeFrcptDis.t == 1)
{
this.pEnumDisMode = CEnumDisMode.ToFr;
}
else
{
this.pEnumDisMode = CEnumDisMode.InFr;
}
}
else if (
EdgeTocptDis.dblDis <= FrcptEdgeDis.dblDis &&
EdgeTocptDis.dblDis <= TocptEdgeDis.dblDis &&
EdgeTocptDis.dblDis <= EdgeFrcptDis.dblDis)
{
this.cptEdgeDis = EdgeTocptDis;
if (EdgeTocptDis.t == 0)
{
this.pEnumDisMode = CEnumDisMode.FrTo;
}
else if (EdgeTocptDis.t == 1)
{
this.pEnumDisMode = CEnumDisMode.ToTo;
}
else
{
this.pEnumDisMode = CEnumDisMode.InTo;
}
}
else
{
throw new ArgumentException("impossible case!");
}
}
