fix_spring.h
No OneTemporary
Actions

Subscribers

None

File Metadata

	/* ----------------------------------------------------------------------
	LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
	http://lammps.sandia.gov, Sandia National Laboratories
	Steve Plimpton, sjplimp@sandia.gov

	Copyright (2003) Sandia Corporation. Under the terms of Contract
	DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
	certain rights in this software. This software is distributed under
	the GNU General Public License.

	See the README file in the top-level LAMMPS directory.
	------------------------------------------------------------------------- */

	#ifndef FIX_SPRING_H
	#define FIX_SPRING_H

	#include "fix.h"

	namespace LAMMPS_NS {

	class FixSpring : public Fix {
	public:
	FixSpring(class LAMMPS , int, char *);
	int setmask();
	void init();
	void setup();
	void post_force(int);
	void post_force_respa(int, int, int);

	private:
	double xc,yc,zc,r0;
	double k_spring;
	int xflag,yflag,zflag;
	int styleflag;
	int igroup2,group2bit;
	double masstotal,masstotal2;
	int nlevels_respa;

	void spring_tether();
	void spring_couple();
	};

	}

	#endif