#pragma once
#include "GeCircle.h"
#include "GeSector.h"
#include "ADSGePoint3d.h"


class EntitySet;
class GeArc : public GeCircle, public GeSector
{
public :
	GeArc();
	GeArc(const GeArc &src);
	GeArc(const EntitySet &aCircle);
	GeArc(const EntitySet &aArc, ads_matrix mat);
	GeArc(const ADSGePoint3d &spt, const ADSGePoint3d &ept, ads_real dang);
	GeArc(const ADSGePoint3d &ptStart, const ADSGePoint3d &pt2, const ADSGePoint3d &ptEnd);
	GeArc(ads_point ptcenter, double dradius, double ptstartAngle, double ptendAngle);
	virtual ~GeArc();

	virtual	bool IsKindOf(TEntityId entType) const;
	virtual	TEntityId Type() const;
	virtual void CopyFrom(const GeEntity* pImpSrc);

	virtual int Make(const TCHAR *szlay = NULL) const;
	virtual int Modify(const EntitySet* pEnt) const;
	virtual int GetExtend(ads_point lowPt, ads_point upPt) const;
	virtual int MakeEntity(const EntitySet* pEnt) const;
	virtual int GetSubArc(const ADSGePoint3d &ptloc, ads_real dchordLen, GeArc &arcRes) const;
	//图形长度，周长
	virtual ads_real GetLength() const;
	
	GeArc& operator = (const GeSector &src);
	GeArc& operator = (const GeArc &src);
	bool  operator == (const GeArc &src) const;
	int   operator ! () const;
	
	virtual	int HitTest2d(const ADSGePoint3d &ptTest) const;
	virtual	int OSnap(int nMode, ADSGePoint3d &ptPick) const;
	
	bool Set(const ADSGePoint3d &spt, const ADSGePoint3d &ept, ads_real dang);
	bool Set(const ADSGePoint3d &ptStart, const ADSGePoint3d &ptOn, const ADSGePoint3d &ptEnd);
	void SetAngleByPoints(const ADSGePoint3d &ptStart, const ADSGePoint3d &ptEnd);
	
	void GetStartPoint(ADSGePoint3d &ptStart) const;
	void GetEndPoint(ADSGePoint3d &ptEnd) const;

	void MidPoint(ADSGePoint3d &ptres) const;
	ADSGePoint3d MidPoint() const;

	//求弦长
	ads_real ChordLength() const;
	// 扇形面积
	ads_real Area() const;
	//起点到终点的积分面积
	ads_real PathArea() const;
	
	GeArc Offset(ads_real dist) const;
	
	virtual void TransUCS(ads_matrix mat);
	
	//上华direction
	ads_real  IDirection(int pt) const;
	ads_real  ODirection(int pt) const;
	
	virtual	int  Intersection(const GeLine* pLine, ads_point ptRp1 = NULL, ads_point ptRp2 = NULL) const;
	virtual	int  Intersection(const GeArc* pArc, ads_point ptRp1 = NULL, ads_point ptRp2 = NULL) const;
	virtual	int  Intersection(const GeCircle* pCir, ads_point ptRp1 = NULL, ads_point ptRp2 = NULL) const;
	
	ads_real * SelectNear(ads_point pt1, ads_point pt2) const;
	int PtOnArc(const ADSGePoint3d &pt) const;
};