//-------------------------------------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TPGeDscEdge3D 类
// = Version	:   ver2.0
// = Author		:   wlw
// = CreateDate	:   2002-09-09
// = Description:   TPGeDscEdge3D 声明  离散无向边集合
// = Maintainers: 
//                  
//-------------------------------------------------------------------------------------------------------+
#ifndef _TPGEDSCEDGE3D_H_
#define _TPGEDSCEDGE3D_H_

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

#ifndef _TPGEFITPATH3D_H_
#include "TPGeFitPath3D.h"
#endif

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

#ifndef _TPGEDSCEDGE_H_
#include "TPGeDscEdge.h"
#endif

class GDscPoint;
class TPGeFitTriangle;
class TPGeDscPoint3D;

class GEOAPI TPGeDscEdge3D : public TWFlag
{
public:

	//同时建立点连接!
	TPGeDscEdge3D(TPGeDscPoint3D*p0,TPGeDscPoint3D*p1);	
	
	virtual ~TPGeDscEdge3D();
	
	TPGeDscPoint3D* GetNextPoint(TPGeDscPoint3D*pPt) const;
	
	//计算一般线性插值点,失败返回NULL
	TPGeDscPoint3D* GetFitPoint(double value);
	
	//从这一边起构造拟合路径,沿途边加VISITED标志
	void ConnectPath(TPGeFitPath3D&path);
	
	double GetMinValue();

	bool operator >(const TPGeDscEdge&e) const;
	
	bool operator <(const TPGeDscEdge&e) const;

public:
	
	//第一点，第二点<引用>
	TPGeDscPoint3D*pPt0,*pPt1;
	
	//当前拟合点<引用>
	TPGeDscPoint3D*pPtFit;    
};

#endif