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22*de7b3f82SAndrew Rist 
23cdf0e10cSrcweir #ifndef CHART2_EXPONENTIALREGRESSIONCURVECALCULATOR_HXX
24cdf0e10cSrcweir #define CHART2_EXPONENTIALREGRESSIONCURVECALCULATOR_HXX
25cdf0e10cSrcweir 
26cdf0e10cSrcweir #include "RegressionCurveCalculator.hxx"
27cdf0e10cSrcweir 
28cdf0e10cSrcweir namespace chart
29cdf0e10cSrcweir {
30cdf0e10cSrcweir 
31cdf0e10cSrcweir class ExponentialRegressionCurveCalculator :
32cdf0e10cSrcweir         public RegressionCurveCalculator
33cdf0e10cSrcweir {
34cdf0e10cSrcweir public:
35cdf0e10cSrcweir 	ExponentialRegressionCurveCalculator();
36cdf0e10cSrcweir 	virtual ~ExponentialRegressionCurveCalculator();
37cdf0e10cSrcweir 
38cdf0e10cSrcweir protected:
39cdf0e10cSrcweir     virtual ::rtl::OUString ImplGetRepresentation(
40cdf0e10cSrcweir         const ::com::sun::star::uno::Reference< ::com::sun::star::util::XNumberFormatter >& xNumFormatter,
41cdf0e10cSrcweir         ::sal_Int32 nNumberFormatKey ) const;
42cdf0e10cSrcweir 
43cdf0e10cSrcweir private:
44cdf0e10cSrcweir     // ____ XRegressionCurveCalculator ____
45cdf0e10cSrcweir     virtual void SAL_CALL recalculateRegression(
46cdf0e10cSrcweir         const ::com::sun::star::uno::Sequence< double >& aXValues,
47cdf0e10cSrcweir         const ::com::sun::star::uno::Sequence< double >& aYValues )
48cdf0e10cSrcweir         throw (::com::sun::star::uno::RuntimeException);
49cdf0e10cSrcweir     virtual double SAL_CALL getCurveValue( double x )
50cdf0e10cSrcweir         throw (::com::sun::star::lang::IllegalArgumentException,
51cdf0e10cSrcweir                ::com::sun::star::uno::RuntimeException);
52cdf0e10cSrcweir     virtual ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealPoint2D > SAL_CALL getCurveValues(
53cdf0e10cSrcweir         double min,
54cdf0e10cSrcweir         double max,
55cdf0e10cSrcweir         ::sal_Int32 nPointCount,
56cdf0e10cSrcweir         const ::com::sun::star::uno::Reference< ::com::sun::star::chart2::XScaling >& xScalingX,
57cdf0e10cSrcweir         const ::com::sun::star::uno::Reference< ::com::sun::star::chart2::XScaling >& xScalingY,
58cdf0e10cSrcweir         ::sal_Bool bMaySkipPointsInCalculation )
59cdf0e10cSrcweir         throw (::com::sun::star::lang::IllegalArgumentException,
60cdf0e10cSrcweir                ::com::sun::star::uno::RuntimeException);
61cdf0e10cSrcweir 
62cdf0e10cSrcweir     // formula is: f(x) = exp(m_fLogIntercept) * exp( m_fLogSlope * x )
63cdf0e10cSrcweir     // mathematical model f(x) = Intercept * Slope^x
64cdf0e10cSrcweir     double m_fLogSlope;
65cdf0e10cSrcweir     double m_fLogIntercept;
66cdf0e10cSrcweir };
67cdf0e10cSrcweir 
68cdf0e10cSrcweir } //  namespace chart
69cdf0e10cSrcweir 
70cdf0e10cSrcweir // CHART2_EXPONENTIALREGRESSIONCURVECALCULATOR_HXX
71cdf0e10cSrcweir #endif
72