position.hpp

微分方程数值解法实验--二维有限元（用C++实现）

#ifndef POSITION_HPP
#define POSITION_HPP
#include<iostream.h>

//二维点坐标类

class Pos{
	friend istream &operator>>(istream &cin,Pos &obj);
	friend ostream &operator<<(ostream &cout,Pos &obj);
public:
	Pos(){x=0.0;y=0.0;}
	Pos(double a,double b){x=a;y=b;}
	void setX(double a){x=a;}
	void setY(double b){y=b;}
	double getX(){return x;}
	double getY(){return y;}
	void setN(int n){num=n;}
	int getN(){return num;}

private:
	int num;          //节点统一编号，用于判断节点位置
	double x;         //x坐标
	double y;         //y坐标
};

istream &operator>>(istream &cin,Pos &obj)
{
	char c;
	cin>>c;
	cin>>obj.x>>c;
	cin>>obj.y>>c;
	return cin;
}

ostream &operator<<(ostream &cout,Pos &obj)
{
	cout<<"("<<obj.x<<","<<obj.y<<")";
	return cout;
}


#endif //POSITION_HPP