61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include "RegressionCurveCalculator.hxx"
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namespace chart
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{
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class PotentialRegressionCurveCalculator final : public RegressionCurveCalculator
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{
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public:
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PotentialRegressionCurveCalculator();
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virtual ~PotentialRegressionCurveCalculator() override;
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protected:
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virtual OUString ImplGetRepresentation(
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const css::uno::Reference<css::util::XNumberFormatter>& xNumFormatter,
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sal_Int32 nNumberFormatKey, sal_Int32* pFormulaLength = nullptr ) const override;
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private:
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// ____ XRegressionCurveCalculator ____
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virtual void SAL_CALL recalculateRegression(
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const css::uno::Sequence<double>& aXValues,
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const css::uno::Sequence<double>& aYValues ) override;
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virtual double SAL_CALL getCurveValue( double x ) override;
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virtual css::uno::Sequence<css::geometry::RealPoint2D> SAL_CALL getCurveValues(
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double min,
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double max,
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sal_Int32 nPointCount,
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const css::uno::Reference<css::chart2::XScaling>& xScalingX,
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const css::uno::Reference<css::chart2::XScaling>& xScalingY,
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sal_Bool bMaySkipPointsInCalculation ) override;
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// formula is: f(x) = x ^ m_fSlope * m_fSign * m_fIntercept
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double m_fSlope;
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double m_fIntercept;
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double m_fSign;
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};
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} // namespace chart
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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