Method UpdateBuildTime

Common/DataModel/vtkKdTree.cxx:2751–2830

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkKdTree::UpdateBuildTime()
{
  this->BuildTime.Modified();

  // Save enough information so that next time we execute,
  // we can determine whether input geometry has changed.

  this->InvalidateGeometry();

  int numDataSets = this->GetNumberOfDataSets();
  if (numDataSets > this->LastDataCacheSize)
  {
    this->ClearLastBuildCache();

    this->LastInputDataSets = new vtkDataSet*[numDataSets];
    this->LastDataSetObserverTags = new unsigned long[numDataSets];
    this->LastDataSetType = new int[numDataSets];
    this->LastInputDataInfo = new double[9 * numDataSets];
    this->LastBounds = new double[6 * numDataSets];
    this->LastNumPoints = new vtkIdType[numDataSets];
    this->LastNumCells = new vtkIdType[numDataSets];
    this->LastDataCacheSize = numDataSets;
  }

  this->LastNumDataSets = numDataSets;

  int nextds = 0;

  vtkCollectionSimpleIterator cookie;
  this->DataSets->InitTraversal(cookie);
  for (vtkDataSet* in = this->DataSets->GetNextDataSet(cookie); in != nullptr;
       in = this->DataSets->GetNextDataSet(cookie))
  {
    if (nextds >= numDataSets)
    {
      vtkErrorMacro(<< "vtkKdTree::UpdateBuildTime corrupt counts");
      return;
    }

    vtkCallbackCommand* cbc = vtkCallbackCommand::New();
    cbc->SetCallback(LastInputDeletedCallback);
    cbc->SetClientData(this);
    this->LastDataSetObserverTags[nextds] = in->AddObserver(vtkCommand::DeleteEvent, cbc);
    cbc->Delete();

    this->LastInputDataSets[nextds] = in;

    this->LastNumPoints[nextds] = in->GetNumberOfPoints();
    this->LastNumCells[nextds] = in->GetNumberOfCells();

    in->GetBounds(this->LastBounds + 6 * nextds);

    int type = this->LastDataSetType[nextds] = in->GetDataObjectType();

    if ((type == VTK_IMAGE_DATA) || (type == VTK_UNIFORM_GRID))
    {
      double origin[3], spacing[3];
      int dims[3];