// http://wenku.baidu.com/view/7c6f4a000740be1e650e9a75.html

// 肯特映射

class KentEquation : public DiscreteEquation

{

public:

    KentEquation()

    {

        m_StartX = 0.0f;

        m_StartY = 0.36f;

        m_ParamA = 0.01f;

    }

    void IterateValue(float x, float y, float& outX, float& outY) const

    {

        outX = x+0.00025f;

        if (y <= m_ParamA)

        {

            outY = y/m_ParamA;

        }

        else

        {

            outY = (-y)/(-m_ParamA);

        }

    }

    bool IsValidParamA() const {return true;}

};