//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TPGeGLineSeg3D.h
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   类的声明
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _TPGEGLINESEG3D_H_
#define _TPGEGLINESEG3D_H_

#ifndef _TPGECURVE3D_H_
#include "TPGeCurve3D.h"
#endif

#ifndef _TGVECTOR3D_H_
#include "TGVector3D.h"
#endif

#ifndef _TPGEGLINE3D_H_
#include "TPGeGLine3D.h"
#endif

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

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

#ifndef _TPGEEXTEND2D_H_
#include "TPGeExtend2D.h"
#endif

#ifndef _TPGEEXTEND3D_H_
#include "TPGeExtend3D.h"
#endif

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

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

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

#ifndef _TGMLINE2D_H_
#include "TGMLine2D.h"
#endif

class TGObject2D;

class GEOAPI TPGeGLineSeg3D : public TPGeGLine3D
{
	DECLARE_RUN_TIME_CLASS(TPGeGLineSeg3D)
public:
	
	TPGeGLineSeg3D();
	
	TPGeGLineSeg3D(const TPGeLine3D& line);
	
	TPGeGLineSeg3D(const TGVector3D& vt,const TGPoint& pt);
	
	TPGeGLineSeg3D(const TGPoint& pt0,const TGPoint& pt1);

	virtual ~TPGeGLineSeg3D();
	//重载 TPGeCurve3D	
	virtual double Length()const;
	
	virtual bool IsFinite(bool bStart)const;

	virtual void GetStartPoint(TGPoint&pt)const;
	
	virtual void GetEndPoint(TGPoint&pt)const;
	
	virtual void Reverse();
	
	virtual void Split(const TTable<double>& paTable,TGObjectList& res)const;

	//重载 TGObject3D
	virtual TGObject2D* Convert2D()const;

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

	virtual bool Intersect(const TGObject& obj,TGObjectList& res)const;
	
	virtual GRelation HitTest(const TGPoint& pt)const;
	
	virtual bool IsInclude(const TGObject& obj)const;
	
	virtual bool GetExtend2D(TPGeExtend2D& ext)const;
	
	virtual bool GetExtend3D(TPGeExtend3D& ext)const;

	const TGPoint& GetStartPoint()const;

	TGPoint GetEndPoint()const;
	
	TGPoint GetMidPoint()const;
	
	const TPGeLine3D &GetGeLine()const;
	
	bool IsSameSeg(const TPGeGLineSeg3D& seg, bool bSameDirection = false)const;

};

#endif