//-------------------------------------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TPGeGLineRay2D 类
// = Version	:   ver2.0
// = Author		:   wlw
// = CreateDate	:   2002-09-09
// = Description:   TPGeGLineRay2D 声明
// = Maintainers: 
//                  
//-------------------------------------------------------------------------------------------------------+
#ifndef _TPGEGLINERAY2D_H_
#define _TPGEGLINERAY2D_H_

#ifndef _TPGECURVE2D_H_
#include "TPGeCurve2D.h"
#endif

#ifndef _TGVECTOR2D_H_
#include "TGVector2D.h"
#endif

#ifndef _TPGELINE2D_H_
#include "TPGeLine2D.h"
#endif

#ifndef _TGPOINT_H_
#include "TGPoint.h"
#endif

#ifndef _TTABLE_H_
#include "TTable.h"
#endif

#ifndef _TGOBJECT_H_
#include "TGObject.h"
#endif

#ifndef _TGOBJECTLIST_H_
#include "TGObjectList.h"
#endif

#ifndef _TWFLAG_H_
#include "TWFlag.h"
#endif

#ifndef _TPGEGLINE2D_H_
#include "TPGeGLine2D.h"
#endif

class TGObject3D;

class GEOAPI TPGeGLineRay2D:public TPGeGLine2D
{
	DECLARE_RUN_TIME_CLASS(TPGeGLineRay2D)

public:

	TPGeGLineRay2D();

	TPGeGLineRay2D(const TGVector2D& vt,const TGPoint& pt);
	
	TPGeGLineRay2D(const TGPoint& pt0,const TGPoint& pt1);
	
	TPGeGLineRay2D(const TPGeLine2D& line);

	virtual ~TPGeGLineRay2D();
	//重载 TPGeCurve2D
	//存在区间[0,正无穷)
	virtual bool IsFinite(bool bStart) const;
	
	virtual void Split(const TTable<double>& paTable,TGObjectList& res) const;
	
	virtual TPGeCurve2D* GetExtendCurve() const;

	//重载 TGObject2D
	virtual TGObject3D* Convert3D() const;

	//重载 TGObject
	virtual TGObject * Clone() const;
	
	virtual GRelation HitTest(const TGPoint& pt) const;
	
	virtual bool IsInclude(const TGObject& obj) const;
	
	virtual bool Intersect(const TGObject& obj,TGObjectList& res) const;
	
	bool IsSameRay(const TPGeGLineRay2D& ray) const;
};

#endif