/// <summary>
/// gets the dual <see cref="Edge"/> of the <see cref="Face"/>. The Edge is <see cref="Face.Bounds"/>[inLoop][id].
/// </summary>
/// <param name="Face">Face from the edge.</param>
/// <param name="inLoop">Index in <see cref="Face.Bounds"/>.</param>
/// <param name="id">Index in <see cref="Face.Bounds"/>[inLoop]</param>
/// <returns>the dual <see cref="Edge"/>.</returns>
public static Edge GetDualEdge(Face Face, int inLoop, int id)
{
Edge E = Face.Bounds[inLoop][id];
Vertex3d A = E.EdgeStart;
Vertex3d B = E.EdgeEnd;
Face Neighbor = Face.Neighbor(inLoop, id) as Face;
if (Neighbor == null)
{
return(null);
}
int OutLoop = -1;
for (int i1 = 0; i1 < Neighbor.Bounds.Count; i1++)
{
OutLoop = i1;
for (int i = 0; i < Neighbor.Bounds[i1].Count; i++)
{
if (((Neighbor.Bounds[i1][i].EdgeStart.Value.dist(B.Value) < 0.00001) &&
(Neighbor.Bounds[i1][i].EdgeEnd.Value.dist(A.Value) < 0.00001)) ||
((Neighbor.Bounds[i1][i].EdgeStart.Value.dist(A.Value) < 0.00001)) &&
(Neighbor.Bounds[i1][i].EdgeEnd.Value.dist(B.Value) < 0.00001))
{
return(Neighbor.Bounds[i1][i]);
}
}
}
return(null);
}
/// <summary>
/// gets the dual <see cref="Edge"/> in a <see cref="Face"/> which is given by <see cref="Face.Bounds"/>[Bound][(int)Param] In <b>OutBound</b> is the index of the dual <see cref="Edge"/> relativ to <b>Neighbor.Bounds</b>
/// and the result value gives the parameter for the <see cref="Edge.ParamCurve"/> of this <see cref="Edge"/>. <b>Neighbor</b> is the neighbor <see cref="Face"/>.
/// If no dual edge is found -1 will be returned.
/// </summary>
/// <param name="Face"><see cref="Face"/> in which <b>Bound</b> and <b>Param</b> are taken.</param>
/// <param name="Bound">gives together with <b>Param</b> the <see cref="Edge"/> by <see cref="Face.Bounds"/>[Bound][(int)Param].</param>
/// <param name="Param">gives together with <b>Bound</b> the <see cref="Edge"/> by <see cref="Face.Bounds"/>[Bound][(int)Param].</param>
/// <param name="OutBound">is the bound index of the dual edge.</param>
/// <param name="Neighbor">is the neighbor of <b>Face</b>.</param>
/// <returns>a parameter, which gives togethe with <b>Outbound</b> the same point in the <b>dualedge</b> with dualedge.Paramcurve.value(parameter-(int)parameter.</returns>
public static double GetDualEdge(Face Face, int Bound, double Param, ref int OutBound, ref Face Neighbor)
{
Edge E = Face.Bounds[Bound][(int)Param];
Vertex3d A = E.EdgeStart;
Vertex3d B = E.EdgeEnd;
Neighbor = Face.Neighbor(Bound, (int)Param) as Face;
if (Neighbor == null)
{
return(-1);
}
OutBound = -1;
for (int i1 = 0; i1 < Neighbor.Bounds.Count; i1++)
{
OutBound = i1;
for (int i = 0; i < Neighbor.Bounds[i1].Count; i++)
{
if ((Neighbor.Bounds[i1][i].EdgeStart == B) &&
(Neighbor.Bounds[i1][i].EdgeEnd == A))
{
if (Param != (int)Param)
{
return(i + (1 - (Param - (int)Param)));
}
return(i);
}
if ((Neighbor.Bounds[i1][i].EdgeStart == A) &&
(Neighbor.Bounds[i1][i].EdgeEnd == B))
{
if (Param != (int)Param)
{
return(i + (1 - (Param - (int)Param)));
}
return(i);
}
}
}
return(-1);
}
