hp3D/hexFunctions.hh

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// additional functionality for hexahedra

#ifndef hexFunctions_hh
#define hexFunctions_hh

#include "basics/typedefs.hh"

namespace concepts {

  // forward declaration
  class Hexahedron;

}

namespace hp3D {

  // ********************************************************** HexFunctions **

  class HexFunctions {
  public:
    static void edgeOrientation(const uint i,
        uint& pIndex, uint& qIndex, uint& rIndex);

    static void faceOrientation(const concepts::Hexahedron& cntr, const uint i,
        uint& pIndex, uint& qIndex, uint& rIndex);

    static void faceShapefctOrientation(const concepts::Hexahedron& cntr,
          const uint i,
          bool& flip0, bool& flip1);

    static void vertexIndex(const uint i, uint ll[3]);

    static void edgeIndex(const uint i, const uint qIndex, const uint rIndex,
        uint ll[3]);

    static void faceIndex(const uint i, const uint rIndex, uint ll[3]);

    static uint index(const uint ll[3], const ushort p[3]) {
      // copy'n paste from TColumnTensor::operator[]
      return ll[0]+ll[1]*(1+p[0])+ll[2]*(1+p[0])*(1+p[1]);
    }
  };

} // namespace hp3D

#endif // hexFunctions_hh