chart2/source/inc/PotentialRegressionCurveCalculator.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 #pragma once
  20
  21 #include "RegressionCurveCalculator.hxx"
  22
  23 namespace chart
  24 {
  25
  26 class PotentialRegressionCurveCalculator final : public RegressionCurveCalculator
  27 {
  28 public:
  29     PotentialRegressionCurveCalculator();
  30     virtual ~PotentialRegressionCurveCalculator() override;
  31
  32 protected:
  33     virtual OUString ImplGetRepresentation(
  34         const css::uno::Reference<css::util::XNumberFormatter>& xNumFormatter,
  35         sal_Int32 nNumberFormatKey, sal_Int32* pFormulaLength = nullptr ) const override;
  36
  37 private:
  38     // ____ XRegressionCurveCalculator ____
  39     virtual void SAL_CALL recalculateRegression(
  40         const css::uno::Sequence<double>& aXValues,
  41         const css::uno::Sequence<double>& aYValues ) override;
  42
  43     virtual double SAL_CALL getCurveValue( double x ) override;
  44
  45     virtual css::uno::Sequence<css::geometry::RealPoint2D> SAL_CALL getCurveValues(
  46         double min,
  47         double max,
  48         sal_Int32 nPointCount,
  49         const css::uno::Reference<css::chart2::XScaling>& xScalingX,
  50         const css::uno::Reference<css::chart2::XScaling>& xScalingY,
  51         sal_Bool bMaySkipPointsInCalculation ) override;
  52
  53     // formula is: f(x) = x ^ m_fSlope * m_fSign * m_fIntercept
  54     double m_fSlope;
  55     double m_fIntercept;
  56     double m_fSign;
  57 };
  58
  59 } //  namespace chart
  60
  61 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */