#ifndef HingeEnergy_H
#define HingeEnergy_H

/* Last edited on DATE TIME by USER */

/* NOT USED */

#include <Energy.h>

typedef struct HingeEnergy_data_t { } HingeEnergy_data_t;
  /*  The {Hinge} energy measures the difference among the {ideal} diedral angle
    and the {average} diedral angle of adjacent walls incident to one @{edge->?}.
    
    This energy is computed only for @{edge->?}s that exists, have DegreeRingWalls
    three or more, and have only existing walls and knots incident to them,
    and have the {hinge} bit set.

    Minimizing this energy tends to equalize the diedral angles between adja-
    cent walls incidents to same @{edge->?}, thus tends to regular configurations.
    This energy is minimum (zero) when the {ideal} diedral angle is equal to
    {average} diedral angle between adjacent walls. */

Energy_t HingeEnergy_new(void);

#endif