Method ComputeWholeExtent

Filters/Geometry/vtkStructuredAMRGridConnectivity.cxx:2067–2105

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

//------------------------------------------------------------------------------
void vtkStructuredAMRGridConnectivity::ComputeWholeExtent()
{
  if (!this->LevelExists(0))
  {
    vtkErrorMacro("AMR dataset has no level 0!\n");
    return;
  }

  std::set<int>::iterator iter;
  std::set<int> rootLevelGrids = this->AMRHierarchy[0];

  int ext[6];
  bool initialPass = true;
  for (iter = rootLevelGrids.begin(); iter != rootLevelGrids.end(); ++iter)
  {
    int gridIdx = *iter;
    this->GetGridExtent(gridIdx, ext);

    if (initialPass)
    {
      for (int i = 0; i < 6; ++i)
      {
        this->WholeExtent[i] = ext[i];
      }
      initialPass = false;
    } // END if
    else
    {
      for (int dim = 0; dim < 3; ++dim)
      {
        this->WholeExtent[dim * 2] = std::min(this->WholeExtent[dim * 2], ext[dim * 2]);
        this->WholeExtent[dim * 2 + 1] = std::max(this->WholeExtent[dim * 2 + 1], ext[dim * 2 + 1]);
      } // END for all dimensions
    }   // END else
  }     // END for all grids at level L0

  this->DataDescription = vtkStructuredData::GetDataDescriptionFromExtent(this->WholeExtent);
  this->DataDimension = vtkStructuredData::GetDataDimension(this->DataDescription);
}
VTK_ABI_NAMESPACE_END