C++ FEdge::SetNature方法代码示例

  /* 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;
    }

//.........这里部分代码省略.........
      T=(*p)[0];
      t=(*p)[1];

      if((t < 0) || (t > 1))
        cerr << "Warning: Intersection out of range for edge " << ioA->getId() << " - " << ioB->getId() << endl;
    
      // compute the 3D and 2D coordinates for the intersections points:
      newpoint3d = Vec3r(A + T*(B-A));
      newpoint2d = Vec3r(a + t*(b-a));

      // create new SVertex:
      // (we keep B's id)
      SVertex* newVertex = new SVertex(newpoint3d, ioB->getId());
      newVertex->SetPoint2D(newpoint2d);
      
      // Add this vertex to the intersections list:
      intersections.push_back(newVertex);

      // Add this vertex to this sshape:
      AddNewVertex(newVertex);
    }
    
    for(vector<SVertex*>::iterator sv=intersections.begin(),svend=intersections.end();
    sv!=svend;
    sv++)
    {
      svA = fe->vertexA();
      svB = fe->vertexB();
        
      // We split edge AB into AA' and A'B. A' and A'B are created.
      // AB becomes (address speaking) AA'. B is updated.
      //--------------------------------------------------
      // The edge AB becomes edge AA'.
      (fe)->SetVertexB((*sv));
      // a new edge, A'B is created.
      FEdge *newEdge;
      if (fe->getNature() & Nature::ALL_INTERSECTION)
	{
	  newEdge = new FEdgeIntersection((*sv), svB);
	  FEdgeIntersection * se = dynamic_cast<FEdgeIntersection*>(newEdge);
	  FEdgeIntersection * fes = dynamic_cast<FEdgeIntersection*>(fe);
	  se->SetMaterialIndex(fes->materialIndex());
	  se->SetFaces(fes->getFace1(), fes->getFace2());


#ifdef DEBUG_INTERSECTION
	  void debugFES(FEdgeIntersection * newEdge);
	  
	  debugFES(se);
	  debugFES(fes);
#endif



	}
      else
      if(fe->isSmooth()){
        newEdge = new FEdgeSmooth((*sv), svB);
        FEdgeSmooth * se = dynamic_cast<FEdgeSmooth*>(newEdge);
        FEdgeSmooth * fes = dynamic_cast<FEdgeSmooth*>(fe);
        se->SetMaterialIndex(fes->materialIndex());
      }else{
        newEdge = new FEdgeSharp((*sv), svB);
        FEdgeSharp * se = dynamic_cast<FEdgeSharp*>(newEdge);
        FEdgeSharp * fes = dynamic_cast<FEdgeSharp*>(fe);
        se->SetaMaterialIndex(fes->aMaterialIndex());
        se->SetbMaterialIndex(fes->bMaterialIndex());
	se->SetEdge(fes->edge());
      }
        
      newEdge->SetNature((fe)->getNature());
      

      // to build a new chain:
      AddChain(newEdge);
      // add the new edge to the sshape edges list.
      AddEdge(newEdge);
      // add new edge to the list of new edges passed as argument:
      ioNewEdges.push_back(newEdge);

      // update edge A'B for the next pointing edge
      newEdge->SetNextEdge((fe)->nextEdge());
      fe->nextEdge()->SetPreviousEdge(newEdge);
      Id id(fe->getId().getFirst(), fe->getId().getSecond()+1);
      newEdge->SetId(fe->getId());
      fe->SetId(id);

      // update edge AA' for the next pointing edge
      //ioEdge->SetNextEdge(newEdge);
      (fe)->SetNextEdge(NULL);

      // update vertex pointing edges list:
      // -- vertex B --
      svB->Replace((fe), newEdge);
      // -- vertex A' --
      (*sv)->AddFEdge((fe));
      (*sv)->AddFEdge(newEdge);
    }
          
    }