CSGCellEngUnit.C

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#include "CSGCellEngUnit.h"
#include "CSGBase.h"
#include "CSGRegion.h"

namespace CSG
{

CSGCellEngUnit::CSGCellEngUnit(const std::string & name)
  : CSGCell(name, CSGRegion()), CSGEngUnit("CELL")
{
}

const CSGCell &
CSGCellEngUnit::getExpandedCell() const
{
  // must contain exactly one cell in the root universe to be considered a correct implementation
  // and be expanded properly. Additional cells can exist in _internal_base through universe/cell
  // nesting.
  const auto & cells = _internal_base->getRootUniverse().getAllCells();
  if (cells.size() == 0)
    mooseError("The root universe of CSGCellEngUnit ",
               getName(),
               " contains no cells. ",
               "Either getExpandedCell() was called before expandUnit() or expandUnit() is not "
               "implemented correctly");
  if (cells.size() > 1)
    mooseError("CSGCellEngUnit '",
               getName(),
               "' expandUnit() must create exactly one cell in _internal_base's root universe "
               "(found ",
               cells.size(),
               ").");
  // Check that all universes and cells in _internal_base are reachable from root.
  if (!_internal_base->areUniversesLinked())
    mooseError("CSGCellEngUnit '",
               getName(),
               "' of type '",
               getUnitType(),
               "' contains unlinked universes or cells. All objects created in expandUnit() must "
               "be reachable from root. Check implementation of expandUnit().");

  return cells[0];
}

} // namespace CSG