Method RefineExtent

Filters/Geometry/vtkStructuredAMRGridConnectivity.cxx:1975–2008

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//------------------------------------------------------------------------------
void vtkStructuredAMRGridConnectivity::RefineExtent(
  int orient[3], int ndim, int fromLevel, int toLevel, int ext[6])
{
  assert("pre: ndim must be either 1, 2 or 3" && (ndim > 0 && ndim <= 3));

  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 i = 0; i < ndim; ++i)
    {
      int dimIdx = orient[i];
      ext[dimIdx * 2] *= ratio;
      ext[dimIdx * 2 + 1] *= ratio;
    }
  } // END if constant refinement ratio
  else
  {
    assert("pre: refinement ratios has not been allocated" &&
      this->RefinementRatios.size() == this->NumberOfGrids);

    for (int l = fromLevel; l < toLevel; ++l)
    {
      int ratio = this->GetRefinementRatioAtLevel(l);
      for (int i = 0; i < ndim; ++i)
      {
        int dimIdx = orient[i];
        ext[dimIdx * 2] *= ratio;
        ext[dimIdx * 2 + 1] *= ratio;
      } // END for all dimensions
    }   // END for each level
  }     // END else varying refinement ratio
}

//------------------------------------------------------------------------------
void vtkStructuredAMRGridConnectivity::GetCellRefinedExtent(