80 lines
2.7 KiB
C++
80 lines
2.7 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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#include "LinearRegressionCurveCalculator.hxx"
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#include "macros.hxx"
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#include "RegressionCalculationHelper.hxx"
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#include <rtl/math.hxx>
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#include <rtl/ustrbuf.hxx>
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using namespace ::com::sun::star;
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namespace chart
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{
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LinearRegressionCurveCalculator::LinearRegressionCurveCalculator() :
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PolynomialRegressionCurveCalculator()
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{}
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LinearRegressionCurveCalculator::~LinearRegressionCurveCalculator()
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{}
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void LinearRegressionCurveCalculator::setRegressionProperties(
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sal_Int32 /*aDegree*/,
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sal_Bool aForceIntercept,
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double aInterceptValue,
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sal_Int32 aPeriod )
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throw (uno::RuntimeException)
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{
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PolynomialRegressionCurveCalculator::setRegressionProperties(
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1,
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aForceIntercept,
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aInterceptValue,
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aPeriod);
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}
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uno::Sequence< geometry::RealPoint2D > SAL_CALL LinearRegressionCurveCalculator::getCurveValues(
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double min, double max, ::sal_Int32 nPointCount,
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const uno::Reference< chart2::XScaling >& xScalingX,
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const uno::Reference< chart2::XScaling >& xScalingY,
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::sal_Bool bMaySkipPointsInCalculation )
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throw (lang::IllegalArgumentException,
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uno::RuntimeException)
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{
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if( bMaySkipPointsInCalculation &&
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isLinearScaling( xScalingX ) &&
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isLinearScaling( xScalingY ))
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{
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// optimize result
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uno::Sequence< geometry::RealPoint2D > aResult( 2 );
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aResult[0].X = min;
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aResult[0].Y = this->getCurveValue( min );
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aResult[1].X = max;
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aResult[1].Y = this->getCurveValue( max );
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return aResult;
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}
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return RegressionCurveCalculator::getCurveValues( min, max, nPointCount, xScalingX, xScalingY, bMaySkipPointsInCalculation );
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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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