Method ReadXMLData

IO/XML/vtkXMLHyperTreeGridReader.cxx:331–417

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//------------------------------------------------------------------------------
void vtkXMLHyperTreeGridReader::ReadXMLData()
{
  // Initializes the output structure
  this->Superclass::ReadXMLData();

  vtkXMLDataElement* ePrimary =
    this->XMLParser->GetRootElement()->LookupElementWithName("HyperTreeGrid");

  vtkHyperTreeGrid* output = vtkHyperTreeGrid::SafeDownCast(this->GetCurrentOutput());
  int branchFactor;
  int transposedRootIndexing;
  int dimensions[3];

  // Read the attributes of the hyper tree grid
  // Whether or not there is a file description in the XML file,
  // the Dimension and Orientation scalar attributes are no longer exploited.
  if (!ePrimary->GetScalarAttribute("BranchFactor", branchFactor))
  {
    branchFactor = 2;
  }
  if (!ePrimary->GetScalarAttribute("TransposedRootIndexing", transposedRootIndexing))
  {
    transposedRootIndexing = 0;
  }
  if (ePrimary->GetVectorAttribute("Dimensions", 3, dimensions) != 3)
  {
    dimensions[0] = 1;
    dimensions[1] = 1;
    dimensions[2] = 1;
  }
  const char* normalsName = ePrimary->GetAttribute("InterfaceNormalsName");
  if (normalsName)
  {
    output->SetInterfaceNormalsName(normalsName);
  }
  const char* interceptsName = ePrimary->GetAttribute("InterfaceInterceptsName");
  if (interceptsName)
  {
    output->SetInterfaceInterceptsName(interceptsName);
  }
  if (normalsName && interceptsName)
  {
    output->SetHasInterface(true);
  }
  if (!ePrimary->GetScalarAttribute("NumberOfVertices", this->NumberOfPoints))
  {
    this->NumberOfPoints = 0;
  }

  // Define the hypertree grid
  output->SetBranchFactor(branchFactor);
  output->SetTransposedRootIndexing((transposedRootIndexing != 0));
  output->SetDimensions(dimensions);

  // Read geometry of hypertree grid expressed in coordinates
  vtkXMLDataElement* eNested = ePrimary->LookupElementWithName("Grid");
  if (eNested)
  {