secondline.h

电子画图板

//SecondLine二次函数类   
//SecondLine.h

//包含的头文件

//类定义
class SecondLine:public Shape{	//继承于Shape类
	DECLARE_SERIAL(SecondLine) 
private:
	double a;		//二次函数参数a	  (y=a*x^2+b*x+c)
	double b;		//二次函数参数b   (y=a*x^2+b*x+c)
	double c;		//二次函数参数c   (y=a*x^2+b*x+c)
public:
	SecondLine();
	SecondLine(double a,double b,double c);
	~SecondLine();
public:
	virtual void drawShape(CDC *pDC,Coordinate co);		//画二次函数
	virtual void Serialize(CArchive& ar);				//串行化
};