chart2/source/inc/ExponentialRegressionCurveCalculator.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #ifndef INCLUDED_CHART2_SOURCE_INC_EXPONENTIALREGRESSIONCURVECALCULATOR_HXX
  20 #define INCLUDED_CHART2_SOURCE_INC_EXPONENTIALREGRESSIONCURVECALCULATOR_HXX
  21
  22 #include "RegressionCurveCalculator.hxx"
  23
  24 namespace chart
  25 {
  26
  27 class ExponentialRegressionCurveCalculator : public RegressionCurveCalculator
  28 {
  29 public:
  30     ExponentialRegressionCurveCalculator();
  31     virtual ~ExponentialRegressionCurveCalculator();
  32
  33 protected:
  34     virtual OUString ImplGetRepresentation(
  35         const css::uno::Reference<css::util::XNumberFormatter>& xNumFormatter,
  36         sal_Int32 nNumberFormatKey ) const SAL_OVERRIDE;
  37
  38 private:
  39     // ____ XRegressionCurveCalculator ____
  40     virtual void SAL_CALL recalculateRegression(
  41         const css::uno::Sequence<double>& aXValues,
  42         const css::uno::Sequence<double>& aYValues )
  43         throw (css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  44
  45     virtual double SAL_CALL getCurveValue( double x )
  46         throw (css::lang::IllegalArgumentException,
  47                css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  48
  49     virtual css::uno::Sequence<css::geometry::RealPoint2D> SAL_CALL getCurveValues(
  50         double min,
  51         double max,
  52         sal_Int32 nPointCount,
  53         const css::uno::Reference<css::chart2::XScaling>& xScalingX,
  54         const css::uno::Reference<css::chart2::XScaling>& xScalingY,
  55         sal_Bool bMaySkipPointsInCalculation )
  56         throw (css::lang::IllegalArgumentException,
  57                css::uno::RuntimeException, std::exception) SAL_OVERRIDE;
  58
  59     // formula is: f(x) = exp(m_fLogIntercept) * exp( m_fLogSlope * x )
  60     // mathematical model f(x) = Intercept * Slope^x
  61     double m_fLogSlope;
  62     double m_fLogIntercept;
  63 };
  64
  65 } //  namespace chart
  66
  67 // INCLUDED_CHART2_SOURCE_INC_EXPONENTIALREGRESSIONCURVECALCULATOR_HXX
  68 #endif
  69
  70 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */