Method GetCellRefinedExtent

Filters/Geometry/vtkStructuredAMRGridConnectivity.cxx:2011–2045

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void vtkStructuredAMRGridConnectivity::GetCellRefinedExtent(
  int orient[3], int ndim, int i, int j, int k, int fromLevel, int toLevel, int ext[6])
{
  // STEP 0: Initialize ext
  IMIN(ext) = IMAX(ext) = i;
  JMIN(ext) = JMAX(ext) = j;
  KMIN(ext) = KMAX(ext) = k;

  // STEP 1: Compute refined cell extent
  if (this->HasConstantRefinementRatio())
  {
    assert("pre: invalid constant refinement ratio" && this->RefinementRatio >= 2);
    int levelDifference = std::abs(fromLevel - toLevel);
    int ratio = levelDifference * this->RefinementRatio;
    for (int dim = 0; dim < ndim; ++dim)
    {
      int dimIdx = orient[dim];
      ext[dimIdx * 2] *= ratio;
      ext[dimIdx * 2 + 1] = (ext[dimIdx * 2] + (ratio - 1));
    } // END for all dimensions
  }   // END if constant refinement ratio
  else
  {
    for (int l = fromLevel; l < toLevel; ++l)
    {
      int ratio = this->GetRefinementRatioAtLevel(l);
      for (int dim = 0; dim < ndim; ++dim)
      {
        int dimIdx = orient[dim];
        ext[dimIdx * 2] *= ratio;
        ext[dimIdx * 2 + 1] = (ext[dimIdx * 2] + (ratio - 1));
      } // END for all dimensions
    }   // END for each level
  }     // END else varying refinement ratio
}

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void vtkStructuredAMRGridConnectivity::GetWholeExtentAtLevel(int level, int ext[6])