//////////////////////////////////////////////////////////////////////////////
//文件 Arc.h
//主要功能: 
//
//程序编写:		2005-12-07
/////////////////////////////////////////////////////////////////////////////


#pragma once
#include "curveex.h"
#include ".\circle.h"


class AFX_EXT_CLASS CArc : public CEllipse
{
	CCurveEx *m_pCurveArc;
public:
	CArc(void);
	virtual ~CArc(void);

	double step;
	double arc1,arc2;

	void Serialize(CArchive& ar, const short &ver) override;
	virtual int Read(CFile &fr, const short& ver);
	virtual void Write(CFile &fw, const short& ver);
	virtual int IsInRange(CRect8 &range,void *HowToViewCurve=NULL);
	virtual void GetRange(CRect8 &range,void *HowToViewCurve=NULL);
	virtual void GetRange(CPoint3D& minPoint, CPoint3D& maxPoint);
	virtual void ScaleProperty(double sx, double sy);
	virtual void Rotate(double xs, double ys, double angle);
	virtual void Offset(double dx, double dy);
	virtual void ScaleCoor(double xs, double ys, double dx, double dy);
	virtual void ExchangeXY(void);
	virtual void ExchangeXY(void* pProjection);	//转换到指定投影坐标,CPrljectio* pProjection
	// type为校正类型,比如两点校位、四点校位等;pValue为类对象指针，如CCalibrate2、CCalibrate4等
	virtual void Calibrate(int type, void* pValue);

	virtual void WriteDML(CFile &fw, const short& ver, int nBaseTabNum);
	virtual int ReadDML(CFile &fr, const short &ver);

	virtual void WritePCG(CFile &fw, const short& ver, int nBaseTabNum);
	virtual int ReadPCG(CFile &fr, const short &ver);

	virtual int ReadPCG2(CFile &fr, const short &ver);

	void SetParameter(CPoint2D CircleCenter, CPoint2D ptStart, CPoint2D ptEnd);
	void GetInTriangle(CPoint2D& ptArc1, CPoint2D& ptArc2, CPoint2D& ptArc3);//获得内接三角形的三个顶点
	virtual void SetInTriangle(CPoint2D& ptArc1, CPoint2D& ptArc2, CPoint2D& ptArc3);//根据内接三角形的三个顶点设置弧

	void operator = (CArc &t);
	void GetCurve(double step1);
	CCurveEx* GetCurve(void);

	DWORD GetType(void);
	void  SetType(DWORD nType);

	COLORREF color;

	//该定义与椭圆中的定义是连续的，不能相同
	enum ArcStyleFlags
	{
		drawArc		= 0x0008,		//显示为弧
		drawChord	= 0x0010,		//显示为弦
		drawPie		= 0x0020		//显示为饼
	};

private:
	int toCurve(double &step1);

public:
	virtual int ReadPCG(void *pxp, const short &ver);
	virtual int ReadPCG2(void *pxp, const short &ver);
};