Method CommitSimplification

Common/DataModel/vtkReebGraph.cxx:1559–1805

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//------------------------------------------------------------------------------
int vtkReebGraph::Implementation::CommitSimplification()
{
  // now re-construct the graph with projected deg-2 nodes.
  std::vector<std::pair<std::pair<int, int>, std::vector<int>>> before, after;

  vtkEdgeListIterator* eIt = vtkEdgeListIterator::New();
  this->Parent->GetEdges(eIt);
  vtkVariantArray* edgeInfo =
    vtkArrayDownCast<vtkVariantArray>(this->Parent->GetEdgeData()->GetAbstractArray("Vertex Ids"));
  vtkDataArray* vertexInfo = this->Parent->GetVertexData()->GetArray("Vertex Ids");

  // avoids double projection
  int vertexNumber = vertexInfo->GetNumberOfTuples();
  std::vector<bool> segmentedVertices;

  do
  {
    std::pair<std::pair<int, int>, std::vector<int>> superArc;

    vtkEdgeType e = eIt->Next();
    vtkAbstractArray* vertexList = edgeInfo->GetPointer(e.Id)->ToArray();

    superArc.first.first = (int)*(vertexInfo->GetTuple(e.Source));
    superArc.first.second = (int)*(vertexInfo->GetTuple(e.Target));

    superArc.second.resize(vertexList->GetNumberOfTuples());
    vertexNumber += vertexList->GetNumberOfTuples();
    for (unsigned int i = 0; i < superArc.second.size(); i++)
      superArc.second[i] = vertexList->GetVariantValue(i).ToInt();

    before.push_back(superArc);
  } while (eIt->HasNext());

  segmentedVertices.resize(vertexNumber);
  for (unsigned int i = 0; i < segmentedVertices.size(); i++)
    segmentedVertices[i] = false;

  vtkIdType prevArcId = -1, arcId = 0;
  while (arcId != prevArcId)
  {
    prevArcId = arcId;
    arcId = GetPreviousArcId();
  }
  prevArcId = -1;

  while (prevArcId != arcId)
  {
    if (this->GetArc(arcId))
    {
      int down, up;
      down = this->GetNode((this->GetArc(arcId))->NodeId0)->VertexId;
      up = this->GetNode((this->GetArc(arcId))->NodeId1)->VertexId;

      std::pair<std::pair<int, int>, std::vector<int>> superArc;

      superArc.first.first = down;
      superArc.first.second = up;