Line data Source code
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 :
21 : #include "RegressionCurveCalculator.hxx"
22 : #include "RegressionCalculationHelper.hxx"
23 : #include "servicenames_coosystems.hxx"
24 :
25 : #include <comphelper/processfactory.hxx>
26 : #include <rtl/math.hxx>
27 :
28 : #include <com/sun/star/lang/XServiceName.hpp>
29 : #include <com/sun/star/util/NumberFormatter.hpp>
30 :
31 : using namespace ::com::sun::star;
32 :
33 : using ::com::sun::star::uno::Reference;
34 : using ::com::sun::star::uno::Sequence;
35 :
36 : namespace chart
37 : {
38 :
39 21 : RegressionCurveCalculator::RegressionCurveCalculator() :
40 : m_fCorrelationCoeffitient(0.0),
41 : mDegree(2),
42 : mForceIntercept(false),
43 : mInterceptValue(0.0),
44 21 : mPeriod(2)
45 : {
46 21 : rtl::math::setNan( &m_fCorrelationCoeffitient );
47 21 : rtl::math::setNan( &mInterceptValue );
48 21 : }
49 :
50 21 : RegressionCurveCalculator::~RegressionCurveCalculator()
51 21 : {}
52 :
53 0 : bool RegressionCurveCalculator::isLinearScaling(
54 : const Reference< chart2::XScaling > & xScaling )
55 : {
56 : // no scaling means linear
57 0 : if( !xScaling.is())
58 0 : return true;
59 0 : static OUString aLinScalingServiceName( "com.sun.star.chart2.LinearScaling" );
60 0 : uno::Reference< lang::XServiceName > xServiceName( xScaling, uno::UNO_QUERY );
61 0 : return (xServiceName.is() && xServiceName->getServiceName().equals( aLinScalingServiceName ));
62 : }
63 :
64 0 : bool RegressionCurveCalculator::isLogarithmicScaling(
65 : const Reference< chart2::XScaling > & xScaling )
66 : {
67 0 : static OUString aLogScalingServiceName( "com.sun.star.chart2.LogarithmicScaling" );
68 0 : uno::Reference< lang::XServiceName > xServiceName( xScaling, uno::UNO_QUERY );
69 0 : return (xServiceName.is() && xServiceName->getServiceName().equals( aLogScalingServiceName ));
70 : }
71 :
72 21 : void RegressionCurveCalculator::setRegressionProperties(
73 : sal_Int32 aDegree,
74 : sal_Bool aForceIntercept,
75 : double aInterceptValue,
76 : sal_Int32 aPeriod )
77 : throw (uno::RuntimeException)
78 : {
79 21 : mDegree = aDegree;
80 21 : mForceIntercept = aForceIntercept;
81 21 : mInterceptValue = aInterceptValue;
82 21 : mPeriod = aPeriod;
83 21 : }
84 :
85 0 : OUString RegressionCurveCalculator::getFormattedString(
86 : const Reference< util::XNumberFormatter >& xNumFormatter,
87 : sal_Int32 nNumberFormatKey,
88 : double fNumber ) const
89 : {
90 0 : OUString aResult;
91 :
92 0 : if( xNumFormatter.is())
93 0 : aResult = xNumFormatter->convertNumberToString( nNumberFormatKey, fNumber );
94 : else
95 0 : aResult = NUMBER_TO_STR( fNumber );
96 :
97 0 : return aResult;
98 : }
99 :
100 0 : Sequence< geometry::RealPoint2D > SAL_CALL RegressionCurveCalculator::getCurveValues(
101 : double min, double max, ::sal_Int32 nPointCount,
102 : const Reference< chart2::XScaling >& xScalingX,
103 : const Reference< chart2::XScaling >& /* xScalingY */,
104 : sal_Bool /* bMaySkipPointsInCalculation */ )
105 : throw (lang::IllegalArgumentException, uno::RuntimeException)
106 : {
107 0 : if( nPointCount < 2 )
108 0 : throw lang::IllegalArgumentException();
109 :
110 : // determine if scaling and inverse scaling for x-values work
111 0 : bool bDoXScaling( xScalingX.is());
112 0 : uno::Reference< chart2::XScaling > xInverseScaling;
113 0 : if( bDoXScaling )
114 0 : xInverseScaling.set( xScalingX->getInverseScaling());
115 0 : bDoXScaling = bDoXScaling && xInverseScaling.is();
116 :
117 0 : Sequence< geometry::RealPoint2D > aResult( nPointCount );
118 :
119 0 : double fMin( min );
120 0 : double fFact = (max - min) / double(nPointCount-1);
121 :
122 0 : if( bDoXScaling )
123 : {
124 0 : fMin = xScalingX->doScaling( min );
125 0 : fFact = (xScalingX->doScaling( max ) - fMin) / double(nPointCount-1);
126 : }
127 :
128 0 : for(sal_Int32 nP=0; nP<nPointCount; nP++)
129 : {
130 0 : double x = fMin + nP * fFact;
131 0 : if( bDoXScaling )
132 0 : x = xInverseScaling->doScaling( x );
133 0 : aResult[nP].X = x;
134 0 : aResult[nP].Y = this->getCurveValue( x );
135 : }
136 :
137 0 : return aResult;
138 : }
139 :
140 0 : double SAL_CALL RegressionCurveCalculator::getCorrelationCoefficient()
141 : throw (uno::RuntimeException)
142 : {
143 0 : return m_fCorrelationCoeffitient;
144 : }
145 :
146 0 : OUString SAL_CALL RegressionCurveCalculator::getRepresentation()
147 : throw (uno::RuntimeException)
148 : {
149 0 : return ImplGetRepresentation( Reference< util::XNumberFormatter >(), 0 );
150 : }
151 :
152 0 : OUString SAL_CALL RegressionCurveCalculator::getFormattedRepresentation(
153 : const Reference< util::XNumberFormatsSupplier > & xNumFmtSupplier,
154 : sal_Int32 nNumberFormatKey )
155 : throw (uno::RuntimeException)
156 : {
157 : // create and prepare a number formatter
158 0 : if( !xNumFmtSupplier.is())
159 0 : return getRepresentation();
160 0 : Reference< uno::XComponentContext > xContext( comphelper::getProcessComponentContext(), uno::UNO_QUERY_THROW );
161 0 : Reference< util::XNumberFormatter > xNumFormatter( util::NumberFormatter::create(xContext), uno::UNO_QUERY_THROW );
162 0 : xNumFormatter->attachNumberFormatsSupplier( xNumFmtSupplier );
163 :
164 0 : return ImplGetRepresentation( xNumFormatter, nNumberFormatKey );
165 : }
166 :
167 :
168 : } // namespace chart
169 :
170 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
