DXF图元文件提取与显示(三)-Circle

#pragma once
#include "dxfmeta.h"
class DXFCircle :
	public DXFMeta
{
public:
	explicit DXFCircle(UINT rCount,UINT seekBytes);
	~DXFCircle(void);

	virtual string OutputFormat();

	friend	ostream& operator<<(ostream& os,const DXFCircle& metaCircle);		//数据输出的友元函数
	friend	istream& operator>>(istream& is,DXFCircle& metaCircle);				//数据输入的友元函数

	virtual void Draw( HDC& dc );

private:
	Point center;
	double radius;
};

 

 

http://blog.youkuaiyun.com/password318/article/details/7009957