circle.h

电子画图板

//Circle圆类   
//Circle.h

//包含的头文件

//类定义
class Circle:public Shape{
	DECLARE_SERIAL(Circle) 
private:
	double a;		//圆点坐标的横轴
	double b;		//圆点坐标的纵轴
	double r;		//圆的半径
public:
	Circle();
	Circle(double a,double b,double r);
	~Circle();
public:
	virtual void drawShape(CDC *pDC,Coordinate co);		//画圆
	virtual void Serialize(CArchive& ar);				//串行化
};