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

#ifndef _TENTITYSET_H_
#include "TEntitySet.h"
#endif

class GEOAPI TGGeSector
{	
public:
	TGGeSector();
	TGGeSector(ads_real dStAng, ads_real dEndAng);
	TGGeSector(const TGGeSector & src);
	TGGeSector(const TEntitySet & ent);
	~TGGeSector();

	TGGeSector& operator = (TGGeSector &src);
	
	bool operator == (const TGGeSector &src) const;
	int operator ! () const;
	
	// 判断一平面向量是否在扇形区内
	int AngleFlag(ads_real dAng) const;
	
	// 找较近的一个角度
	ads_real* NearAngle(ads_real dAng);
	
	ads_real Bulge() const;
	ads_real MidAngle() const;
	
	void SetAngles(ads_real dStart, ads_real dEnd);

	void TransUCS(ads_real dIncAngle);

	void SetStarAngle(ads_real dAngle);
	void SetEndAngle(ads_real dAngle);

	ads_real GetStarAngle() const;
	ads_real GetEndAngle() const;

public:
	double m_dstartAngle;
	double m_dendAngle;
};

#endif