/* splits an edge into 2 edges. The new vertex and edge are added
* to the sshape list of vertices and edges
* a new chain is also created.
* returns the new edge.
* ioEdge
* The edge that gets splitted
* newpoint
* x,y,z coordinates of the new point.
*/
FEdge* SShape::SplitEdgeIn2(FEdge* ioEdge, SVertex * ioNewVertex)
{
SVertex *A = ioEdge->vertexA();
SVertex *B = ioEdge->vertexB();
// We split edge AB into AA' and A'B. A' and A'B are created.
// AB becomes (address speaking) AA'. B is updated.
//--------------------------------------------------
// a new edge, A'B is created.
FEdge *newEdge;
if (ioEdge->getNature() & Nature::ALL_INTERSECTION)
{
newEdge = new FEdgeIntersection(ioNewVertex, B);
FEdgeIntersection * se = dynamic_cast<FEdgeIntersection*>(newEdge);
FEdgeIntersection * fes = dynamic_cast<FEdgeIntersection*>(ioEdge);
se->SetMaterialIndex(fes->materialIndex());
se->SetFaces(fes->getFace1(), fes->getFace2());
#ifdef DEBUG_INTERSECTION
void debugFES(FEdgeIntersection * newEdge);
debugFES(se);
debugFES(fes);
#endif
}else
if(ioEdge->isSmooth()){
newEdge = new FEdgeSmooth(ioNewVertex, B);
FEdgeSmooth * se = dynamic_cast<FEdgeSmooth*>(newEdge);
FEdgeSmooth * fes = dynamic_cast<FEdgeSmooth*>(ioEdge);
se->SetMaterialIndex(fes->materialIndex());
se->SetFace(fes->face());
}else{
newEdge = new FEdgeSharp(ioNewVertex, B);
FEdgeSharp * se = dynamic_cast<FEdgeSharp*>(newEdge);
FEdgeSharp * fes = dynamic_cast<FEdgeSharp*>(ioEdge);
se->SetaMaterialIndex(fes->aMaterialIndex());
se->SetbMaterialIndex(fes->bMaterialIndex());
se->SetEdge(fes->edge());
}
newEdge->SetNature(ioEdge->getNature());
if(ioEdge->nextEdge() != 0)
ioEdge->nextEdge()->SetPreviousEdge(newEdge);
// update edge A'B for the next pointing edge
newEdge->SetNextEdge(ioEdge->nextEdge());
// update edge A'B for the previous pointing edge
newEdge->SetPreviousEdge(0); // because it is now a ViewVertex
Id id(ioEdge->getId().getFirst(), ioEdge->getId().getSecond()+1);
newEdge->SetId(ioEdge->getId());
ioEdge->SetId(id);
// update edge AA' for the next pointing edge
ioEdge->SetNextEdge(0); // because it is now a TVertex
// update vertex pointing edges list:
// -- vertex B --
B->Replace(ioEdge, newEdge);
// -- vertex A' --
ioNewVertex->AddFEdge(ioEdge);
ioNewVertex->AddFEdge(newEdge);
// to build a new chain:
AddChain(newEdge);
AddEdge(newEdge); // FIXME ??
// The edge AB becomes edge AA'.
ioEdge->SetVertexB(ioNewVertex);
// added by Aaron (looks redundant now, can probably be deleted)
newEdge->SetVertexA(ioNewVertex);
newEdge->SetVertexB(B);
// if(ioEdge->isSmooth()){
// ((FEdgeSmooth*)newEdge)->SetFace(((FEdgeSmooth*)ioEdge)->face());
//}
return newEdge;
}
