Method AddVertexInternal

Common/DataModel/vtkGraph.cxx:1144–1238

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//------------------------------------------------------------------------------
void vtkGraph::AddVertexInternal(vtkVariantArray* propertyArr, vtkIdType* vertex)
{
  this->ForceOwnership();

  vtkDistributedGraphHelper* helper = this->GetDistributedGraphHelper();

  if (propertyArr) // Add/replace vertex properties if passed in
  {
    vtkAbstractArray* peds = this->GetVertexData()->GetPedigreeIds();
    // If the properties include pedigreeIds, we need to see if this
    // pedigree already exists and, if so, simply update its properties.
    if (peds)
    {
      // Get the array index associated with pedIds.
      vtkIdType pedIdx = this->GetVertexData()->SetPedigreeIds(peds);
      vtkVariant pedigreeId = propertyArr->GetValue(pedIdx);
      if (helper)
      {
        vtkIdType myRank = this->Information->Get(vtkDataObject::DATA_PIECE_NUMBER());
        if (helper->GetVertexOwnerByPedigreeId(pedigreeId) != myRank)
        {
          helper->AddVertexInternal(propertyArr, vertex);
          return;
        }
      }

      vtkIdType vertexIndex = this->FindVertex(pedigreeId);

      // FindVertex returns distributed ids for parallel graphs, must account
      // for this prior to the range check.
      if (helper)
      {
        vertexIndex = helper->GetVertexIndex(vertexIndex);
      }
      if (vertexIndex != -1 && vertexIndex < this->GetNumberOfVertices())
      {
        for (int iprop = 0; iprop < propertyArr->GetNumberOfValues(); iprop++)
        {
          vtkAbstractArray* arr = this->GetVertexData()->GetAbstractArray(iprop);
          arr->InsertVariantValue(vertexIndex, propertyArr->GetValue(iprop));
        }
        if (vertex)
        {
          *vertex = vertexIndex;
        }
        return;
      }

      this->Internals->Adjacency.emplace_back(); // Add a new (local) vertex
      vtkIdType index = static_cast<vtkIdType>(this->Internals->Adjacency.size() - 1);

      vtkDataSetAttributes* vertexData = this->GetVertexData();
      int numProps = propertyArr->GetNumberOfValues();
      assert(numProps == vertexData->GetNumberOfArrays());
      for (int iprop = 0; iprop < numProps; iprop++)
      {
        vtkAbstractArray* arr = vertexData->GetAbstractArray(iprop);
        arr->InsertVariantValue(index, propertyArr->GetValue(iprop));