OOPSE/libmdtools/ConstraintPair.hpp

#ifndef _CONSTRAINT_PAIR_H_
#define _CONSTRAINT_PAIR_H_

#include "ConstraintElement.hpp"

class ConstraintAlgorithm;
class ConstraintPair{
  public:
    virtual ~ConstraintPair() {}
    ConstraintElement* firstElem;
    ConstraintElement* secondElem;

    bool isMoved() {return firstElem->getMoved() || secondElem->getMoved();}
    virtual double getBondLength2() = 0;

    double getLamda() {return lamda;}
    void setLamda(double l) {lamda = l;}

    //double getDistance();
    
  protected:
    ConstraintPair(ConstraintElement* ce1, ConstraintElement* ce2) : firstElem(ce1), secondElem(ce2){}

  private:
    double lamda;
};


//Constrain two linked rigid bodies which share the same joint
class JointConstraintPair : public ConstraintPair{
  public:
    JointConstraintPair(ConstraintElement* ce1, ConstraintElement* ce2) : ConstraintPair(ce1, ce2){}
    double getBondLength2() {return 0;}
};

//constraint two 
class DistanceConstraintPair : public ConstraintPair{
  public:
    DistanceConstraintPair(ConstraintElement* ce1, ConstraintElement* ce2, double bondLength2) 
                                                      : ConstraintPair(ce1, ce2), d2(bondLength2){}
    double getBondLength2() {return d2;}
  private:
    double d2;    
};

#endif //ifndef _CONSTRAINT_PAIR_H_
Revision:	1452
Committed:	Mon Aug 23 15:11:36 2004 UTC (21 years, 2 months ago) by tim
File size:	1294 byte(s)
Log Message:	* empty log message *
#	Content
1	#ifndef _CONSTRAINT_PAIR_H_
2	#define _CONSTRAINT_PAIR_H_
3
4	#include "ConstraintElement.hpp"
5
6	class ConstraintAlgorithm;
7	class ConstraintPair{
8	public:
9	virtual ~ConstraintPair() {}
10	ConstraintElement* firstElem;
11	ConstraintElement* secondElem;
12
13	bool isMoved() {return firstElem->getMoved() \|\| secondElem->getMoved();}
14	virtual double getBondLength2() = 0;
15
16	double getLamda() {return lamda;}
17	void setLamda(double l) {lamda = l;}
18
19	//double getDistance();
20
21	protected:
22	ConstraintPair(ConstraintElement* ce1, ConstraintElement* ce2) : firstElem(ce1), secondElem(ce2){}
23
24	private:
25	double lamda;
26	};
27
28
29	//Constrain two linked rigid bodies which share the same joint
30	class JointConstraintPair : public ConstraintPair{
31	public:
32	JointConstraintPair(ConstraintElement* ce1, ConstraintElement* ce2) : ConstraintPair(ce1, ce2){}
33	double getBondLength2() {return 0;}
34	};
35
36	//constraint two
37	class DistanceConstraintPair : public ConstraintPair{
38	public:
39	DistanceConstraintPair(ConstraintElement* ce1, ConstraintElement* ce2, double bondLength2)
40	: ConstraintPair(ce1, ce2), d2(bondLength2){}
41	double getBondLength2() {return d2;}
42	private:
43	double d2;
44	};
45
46	#endif //ifndef _CONSTRAINT_PAIR_H_