Method AddPath

Common/DataModel/vtkReebGraph.cxx:2365–2425

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//------------------------------------------------------------------------------
vtkIdType vtkReebGraph::Implementation::AddPath(
  int nodeNumber, vtkIdType* nodeOffset, vtkReebLabelTag label)
{
  vtkIdType i, Lprev, Ret = 0;

  this->ResizeMainArcTable(nodeNumber - 1);

  if (label)
    ResizeMainLabelTable(nodeNumber - 1);

  Lprev = 0;
  for (i = 0; i < (nodeNumber - 1); i++)
  {
    vtkIdType N0 = nodeOffset[i];
    vtkIdType N1 = nodeOffset[i + 1];

    // create a new arc in the graph
    int A = this->MainArcTable.FreeZone;
    this->MainArcTable.FreeZone = this->GetArc(A)->LabelId0;
    ++(this->MainArcTable.Number);
    memset(this->GetArc(A), 0, sizeof(vtkReebArc));
    vtkReebArc* arc = this->GetArc(A);

    int L = 0;

    if (!Ret)
      Ret = A;

    if (label)
    {
      vtkReebLabel* temporaryLabel;

      // create a new label in the graph
      L = this->MainLabelTable.FreeZone;
      this->MainLabelTable.FreeZone = this->GetLabel(L)->ArcId;
      ++(this->MainLabelTable.Number);
      memset(this->GetLabel(L), 0, sizeof(vtkReebLabel));
      temporaryLabel = this->GetLabel(L);

      temporaryLabel->ArcId = A;
      temporaryLabel->label = label;
      temporaryLabel->VPrev = Lprev;
    }

    arc->NodeId0 = N0;
    arc->NodeId1 = N1;
    arc->LabelId0 = arc->LabelId1 = L;

    vtkReebGraphAddUpArc(this, N0, A);
    vtkReebGraphAddDownArc(this, N1, A);

    if (label)
    {
      if (Lprev)
        this->GetLabel(Lprev)->VNext = L;
      Lprev = L;
    }
  }