INTEGRATION: CWS chart17 (1.1.2); FILE ADDED
2007/10/23 16:51:19 bm 1.1.2.3: #i82891# no scaling means automatically linear 2007/10/23 15:02:36 bm 1.1.2.2: #i82891# improve rendering of regression curves using XRegressionCurveCalculator::getCurveValues() 2007/10/12 12:32:34 bm 1.1.2.1: #i7998# equations for regression curves
This commit is contained in:
Ivo Hinkelmann
parent
72e2310c9d
commit
1dde033c88
1 changed files with 176 additions and 0 deletions
176
chart2/source/tools/RegressionCurveCalculator.cxx
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176
chart2/source/tools/RegressionCurveCalculator.cxx
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/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: RegressionCurveCalculator.cxx,v $
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*
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* $Revision: 1.2 $
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*
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* last change: $Author: ihi $ $Date: 2007-11-23 12:07:14 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_chart2.hxx"
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#include "RegressionCurveCalculator.hxx"
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#include "RegressionCalculationHelper.hxx"
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#include "servicenames_coosystems.hxx"
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#include <comphelper/processfactory.hxx>
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#include <rtl/math.hxx>
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#include <com/sun/star/lang/XServiceName.hpp>
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using namespace ::com::sun::star;
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using ::com::sun::star::uno::Reference;
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using ::com::sun::star::uno::Sequence;
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using ::rtl::OUString;
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namespace chart
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{
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RegressionCurveCalculator::RegressionCurveCalculator() :
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m_fCorrelationCoeffitient( 0.0 )
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{
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::rtl::math::setNan( & m_fCorrelationCoeffitient );
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}
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RegressionCurveCalculator::~RegressionCurveCalculator()
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{}
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// static
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bool RegressionCurveCalculator::isLinearScaling(
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const Reference< chart2::XScaling > & xScaling )
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{
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// no scaling means linear
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if( !xScaling.is())
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return true;
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static OUString aLinScalingServiceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.chart2.LinearScaling" ));
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uno::Reference< lang::XServiceName > xServiceName( xScaling, uno::UNO_QUERY );
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return (xServiceName.is() && xServiceName->getServiceName().equals( aLinScalingServiceName ));
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}
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// static
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bool RegressionCurveCalculator::isLogarithmicScaling(
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const Reference< chart2::XScaling > & xScaling )
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{
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static OUString aLogScalingServiceName( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.chart2.LogarithmicScaling" ));
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uno::Reference< lang::XServiceName > xServiceName( xScaling, uno::UNO_QUERY );
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return (xServiceName.is() && xServiceName->getServiceName().equals( aLogScalingServiceName ));
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}
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OUString RegressionCurveCalculator::getFormattedString(
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const Reference< util::XNumberFormatter >& xNumFormatter,
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::sal_Int32 nNumberFormatKey,
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double fNumber ) const
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{
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OUString aResult;
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if( xNumFormatter.is())
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aResult = xNumFormatter->convertNumberToString( nNumberFormatKey, fNumber );
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else
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aResult = NUMBER_TO_STR( fNumber );
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return aResult;
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}
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Sequence< geometry::RealPoint2D > SAL_CALL RegressionCurveCalculator::getCurveValues(
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double min, double max, ::sal_Int32 nPointCount,
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const Reference< chart2::XScaling >& xScalingX,
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const 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( nPointCount < 2 )
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throw lang::IllegalArgumentException();
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// determine if scaling and inverse scaling for x-values work
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bool bDoXScaling( xScalingX.is());
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uno::Reference< chart2::XScaling > xInverseScaling;
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if( bDoXScaling )
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xInverseScaling.set( xScalingX->getInverseScaling());
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bDoXScaling = bDoXScaling && xInverseScaling.is();
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Sequence< geometry::RealPoint2D > aResult( nPointCount );
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double fMin( min );
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double fFact = (max - min) / double(nPointCount-1);
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if( bDoXScaling )
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{
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fMin = xScalingX->doScaling( min );
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fFact = (xScalingX->doScaling( max ) - fMin) / double(nPointCount-1);
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}
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for(sal_Int32 nP=0; nP<nPointCount; nP++)
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{
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double x = fMin + nP * fFact;
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if( bDoXScaling )
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x = xInverseScaling->doScaling( x );
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aResult[nP].X = x;
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aResult[nP].Y = this->getCurveValue( x );
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}
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return aResult;
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}
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double SAL_CALL RegressionCurveCalculator::getCorrelationCoefficient()
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throw (uno::RuntimeException)
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{
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return m_fCorrelationCoeffitient;
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}
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OUString SAL_CALL RegressionCurveCalculator::getRepresentation()
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throw (uno::RuntimeException)
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{
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return ImplGetRepresentation( Reference< util::XNumberFormatter >(), 0 );
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}
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OUString SAL_CALL RegressionCurveCalculator::getFormattedRepresentation(
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const Reference< util::XNumberFormatsSupplier > & xNumFmtSupplier,
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::sal_Int32 nNumberFormatKey )
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throw (uno::RuntimeException)
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{
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// create and prepare a number formatter
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if( !xNumFmtSupplier.is())
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return getRepresentation();
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Reference< util::XNumberFormatter > xNumFormatter;
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Reference< lang::XMultiServiceFactory > xFact( comphelper::getProcessServiceFactory(), uno::UNO_QUERY );
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if( xFact.is())
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xNumFormatter.set( xFact->createInstance(
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OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.util.NumberFormatter"))), uno::UNO_QUERY );
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if( !xNumFormatter.is())
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return getRepresentation();
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xNumFormatter->attachNumberFormatsSupplier( xNumFmtSupplier );
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return ImplGetRepresentation( xNumFormatter, nNumberFormatKey );
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}
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} // namespace chart
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