LinearRegressionCurveCalculator.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <LinearRegressionCurveCalculator.hxx>
 
using namespace ::com::sun::star;
 
namespace chart
{
 
LinearRegressionCurveCalculator::LinearRegressionCurveCalculator()
{}
 
LinearRegressionCurveCalculator::~LinearRegressionCurveCalculator()
{}
 
void LinearRegressionCurveCalculator::setRegressionProperties(
    sal_Int32 /*aDegree*/,
    sal_Bool  aForceIntercept,
    double    aInterceptValue,
    sal_Int32 aPeriod,
    sal_Int32 /*nMovingType*/)
{
    PolynomialRegressionCurveCalculator::setRegressionProperties(
                                            1,
                                            aForceIntercept,
                                            aInterceptValue,
                                            aPeriod,
                                            0);
}
 
uno::Sequence< geometry::RealPoint2D > SAL_CALL LinearRegressionCurveCalculator::getCurveValues(
    double min, double max, ::sal_Int32 nPointCount,
    const uno::Reference< chart2::XScaling >& xScalingX,
    const uno::Reference< chart2::XScaling >& xScalingY,
    sal_Bool bMaySkipPointsInCalculation )
{
    if( bMaySkipPointsInCalculation &&
        isLinearScaling( xScalingX ) &&
        isLinearScaling( xScalingY ))
    {
        // optimize result
        uno::Sequence< geometry::RealPoint2D > aResult{ { min, getCurveValue( min ) },
                                                        { max, getCurveValue( max ) } };
 
        return aResult;
    }
    return RegressionCurveCalculator::getCurveValues( min, max, nPointCount, xScalingX, xScalingY, bMaySkipPointsInCalculation );
}
 
} //  namespace chart
 
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