#ifndef __CFoldToolKit_H__
#define __CFoldToolKit_H__

#if _MSC_VER > 1000
#pragma once
#endif

typedef struct Equation
{
	double m_dK0;
	double m_dK1;
	double m_dK2;
	double m_dK3;

	Equation()
	{
		m_dK0 = m_dK1 = m_dK2 = m_dK3 = 0.0;
	}

	void InputK(double dK0,double dK1,double dK2,double dK3)
	{
		m_dK0 = dK0;
		m_dK1 = dK1;
		m_dK2 = dK2;
		m_dK3 = dK3;
	}
}Equation;

class CFoldToolKit
{
public:

	static CFoldToolKit* Instance();

	static void DisInstance();

	BOOL CalcFoldBx(double dH1,double dH2,double dDist,double dHx,FoldCalcResult& FoldRes);

	BOOL CalcFoldBx(double dH1,double dH2,double dDist,double dHx,double& dBx);

	double CalcFoldY(const Equation& equ,double dX);

	double CalcFoldRx(double dH,double dHx);

	double CalcEffectDist(double dH1,double dH2,double dDist,double dHx);

protected:
	CFoldToolKit(void);
	~CFoldToolKit(void);

	//载入公式
	void IniEquation();
protected:
	static CFoldToolKit* m_pInstance;
	std::map<CString,Equation> m_Equations;  //公式参数map
};

#endif