#ifndef Curvature2D_H
#define Curvature2D_H

/* Last edited on DATE TIME by USER */

#include <Energy.h>

typedef struct Curvature2D_data_t { } Curvature2D_data_t;
  /* The {Curvature 2D} energy measures the outer dihedral angles between 
    adjacent walls.
    
    This energy is computed only for walls that:

    - exist,
    - belong to the same original wall, and
    - are adjacent to one common @{edge->?}.
    
    The energy depends on the actual angle {A}, as
    {1 + cos(A)}; which reaches its minimum when {A==Pi}.
  */

Energy_t Curvature2D_new(void);

#endif