Function FillRegion

Common/DataModel/vtkAMRBox.h:376–416

 */
template <typename T>
void FillRegion(T* pArray, const vtkAMRBox& arrayRegion, const vtkAMRBox& destRegion, T fillValue)
{
  // Convert regions to array index space. VTK arrays
  // always start with 0,0,0.
  int ofs[3];
  ofs[0] = -arrayRegion.GetLoCorner()[0];
  ofs[1] = -arrayRegion.GetLoCorner()[1];
  ofs[2] = -arrayRegion.GetLoCorner()[2];
  vtkAMRBox arrayDims(arrayRegion);
  arrayDims.Shift(ofs);
  vtkAMRBox destDims(destRegion);
  destDims.Shift(ofs);
  // Quick sanity check.
  if (!arrayRegion.Contains(destRegion))
  {
    vtkGenericWarningMacro(<< "ERROR: Array must enclose the destination region. "
                           << "Aborting the fill.");
  }
  // Get the bounds of the indices we fill.
  const int* destLo = destDims.GetLoCorner();
  int destHi[3];
  destDims.GetValidHiCorner(destHi);
  // Get the array dimensions.
  int arrayHi[3];
  arrayDims.GetNumberOfCells(arrayHi);
  // Fill.
  for (int k = destLo[2]; k <= destHi[2]; ++k)
  {
    vtkIdType kOfs = k * arrayHi[0] * arrayHi[1];
    for (int j = destLo[1]; j <= destHi[1]; ++j)
    {
      vtkIdType idx = kOfs + j * arrayHi[0] + destLo[0];
      for (int i = destLo[0]; i <= destHi[0]; ++i)
      {
        pArray[idx] = fillValue;
        ++idx;
      }
    }
  }
  ///@}
}

VTK_ABI_NAMESPACE_END
#endif