//-------------------------------------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TPGeGLine2D 类
// = Version	:   ver2.0
// = Author		:   wlw
// = CreateDate	:   2002-09-09
// = Description:   TPGeGLine2D 声明
// = Maintainers: 
//                  
//-------------------------------------------------------------------------------------------------------+
#ifndef _TPGEGLINE2D_H_
#define _TPGEGLINE2D_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 _TGMATRIX_H_
#include "TGMatrix.h"
#endif

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

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

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

class TGObject3D;

class GEOAPI TPGeGLine2D:public TPGeCurve2D,public TPGeLine2D
{
	DECLARE_RUN_TIME_CLASS(TPGeGLine2D)
		
public:

	TPGeGLine2D();

	TPGeGLine2D(const TGVector2D&vt,const TGPoint&pt);
	
	TPGeGLine2D(const TGPoint&pt0,const TGPoint&pt1);
	
	TPGeGLine2D(const TPGeLine2D&line);
	
	virtual ~TPGeGLine2D();


	//重载 TPGeCurve2D
	virtual bool IsClosed() const;
	
	virtual bool IsFinite(bool bStart) const;
	
	virtual void Pa2Pt(double pa,TGPoint&pt) const;
	
	virtual void Pt2Pa(const TGPoint&pt,double&pa) const;
	
	virtual void GetTangent(double pa,TPGeLine2D&line) const;
	
	virtual double Integration(double pa0,double pa1) const;
	
	virtual void Reverse();
	
	virtual void Split(const TTable<double> &paTable,TGObjectList&res) const;
	
	virtual TPGeCurve2D* GetSubCurve(double pa0,double pa1) const;
	
	virtual bool Offset(double offset);

	//重载 TGObject2D
	virtual double GetElev() const;

	virtual void SetElev(double elev);
	
	virtual TGObject3D* Convert3D() const;

	//重载 TGObject
	virtual TGObject * Clone() const;	

	virtual bool IsValid() const;
	
	virtual bool IsInclude(const TGObject&obj) const;
	
	virtual bool Intersect(const TGObject&obj,TGObjectList&res) const;
	
	virtual void TransformBy(const TGMatrix&matrix);
	
	virtual GRelation HitTest(const TGPoint&pt) const;
	
	const TPGeLine2D &GetGeLine() const;
};

#endif