/**
 *  \file IMP/misc/SoftCylinderPairScore.h
 *  \brief A Score on the distance between a pair of particles.
 *
 *  Copyright 2007-2013 IMP Inventors. All rights reserved.
 */

#ifndef IMPMISC_SOFT_CYLINDER_PAIR_SCORE_H
#define IMPMISC_SOFT_CYLINDER_PAIR_SCORE_H

#include <IMP/misc/misc_config.h>
#include <IMP/PairScore.h>
#include <IMP/UnaryFunction.h>
#include <IMP/Pointer.h>
#include <IMP/pair_macros.h>

IMPMISC_BEGIN_NAMESPACE

//! Apply a function to the distance between the cylinders defined by two bonds.
/** The two endpoints of the bond must have the same radius and that is used
    for the radius of the cylinder connecting them.
*/
class IMPMISCEXPORT SoftCylinderPairScore : public PairScore
{
  double k_;
public:
  SoftCylinderPairScore(double k);
  IMP_PAIR_SCORE(SoftCylinderPairScore);
};

IMPMISC_END_NAMESPACE

#endif  /* IMPMISC_SOFT_CYLINDER_PAIR_SCORE_H */