chart2/source/tools/LinearRegressionCurveCalculator.cxx

   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
  20 #include <LinearRegressionCurveCalculator.hxx>
  21
  22 using namespace ::com::sun::star;
  23
  24 namespace chart
  25 {
  26
  27 LinearRegressionCurveCalculator::LinearRegressionCurveCalculator()
  28 {}
  29
  30 LinearRegressionCurveCalculator::~LinearRegressionCurveCalculator()
  31 {}
  32
  33 void LinearRegressionCurveCalculator::setRegressionProperties(
  34     sal_Int32 /*aDegree*/,
  35     sal_Bool  aForceIntercept,
  36     double    aInterceptValue,
  37     sal_Int32 aPeriod,
  38     sal_Int32 /*nMovingType*/)
  39 {
  40     PolynomialRegressionCurveCalculator::setRegressionProperties(
  41                                             1,
  42                                             aForceIntercept,
  43                                             aInterceptValue,
  44                                             aPeriod,
  45                                             0);
  46 }
  47
  48 uno::Sequence< geometry::RealPoint2D > SAL_CALL LinearRegressionCurveCalculator::getCurveValues(
  49     double min, double max, ::sal_Int32 nPointCount,
  50     const uno::Reference< chart2::XScaling >& xScalingX,
  51     const uno::Reference< chart2::XScaling >& xScalingY,
  52     sal_Bool bMaySkipPointsInCalculation )
  53 {
  54     if( bMaySkipPointsInCalculation &&
  55         isLinearScaling( xScalingX ) &&
  56         isLinearScaling( xScalingY ))
  57     {
  58         // optimize result
  59         uno::Sequence< geometry::RealPoint2D > aResult{ { min, getCurveValue( min ) },
  60                                                         { max, getCurveValue( max ) } };
  61
  62         return aResult;
  63     }
  64     return RegressionCurveCalculator::getCurveValues( min, max, nPointCount, xScalingX, xScalingY, bMaySkipPointsInCalculation );
  65 }
  66
  67 } //  namespace chart
  68
  69 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */