line2d.h

我自己写的代码 可能比较简单 我实现了模拟图层的功能

///////////////////////////////////////////////////////////
//  Line2D.h
//  Implementation of the Class Line2D
//  Created on:      18-二月-2009 17:17:20
//  Original author: pangyj
///////////////////////////////////////////////////////////

#if !defined(EA_9448FE11_A0F2_4265_AA0B_334517EE1AE5__INCLUDED_)
#define EA_9448FE11_A0F2_4265_AA0B_334517EE1AE5__INCLUDED_

#include "Point2D.h"
#include "ErrorStatus.h"
#include "GeometryPrimitive.h"

class Line2D : public GeometryPrimitive
{

public:
	virtual ~Line2D();

	Line2D();
	Line2D(const Point2D& ePt, const Point2D& sPt);
	const Point2D endPoint() const;
	void endPoint(const Point2D& pt);
	virtual ErrorStatus read(fstream& f);
	const Point2D startPoint() const;
	void startPoint(const Point2D& pt);
	virtual ErrorStatus write(fstream& f);
	virtual void list()const;

private:
	Point2D endPt;
	Point2D startPt;

};
#endif // !defined(EA_9448FE11_A0F2_4265_AA0B_334517EE1AE5__INCLUDED_)