mirror of
https://github.com/GoldenCheetah/GoldenCheetah.git
synced 2026-02-13 16:18:42 +00:00
49cf6340a4
This commit is based on https://github.com/GoldenCheetah/GoldenCheetah/pull/3956 with the following additions / changes: * Upgraded to the latest version of the multiaxes-branch, thus eliminating crashes of GoldenCheetah on startup * Disabled the emitting of Layout Requests on geometry changes of QwtScaleWidget - without this, CPU utilization was up to 100% on one core * Added the class SplineLookup, reusing small portions of code from Qwt 6.1 * Re-added the splines in WPrime and RideFile (resampling), using the new interface of QwtSpline * Appveyor: qwt in cache-section now depends on qwt/qwtconfig.prin.in for refresh on version change
125 lines
3.5 KiB
C++
125 lines
3.5 KiB
C++
/*****************************************************************************
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* Qwt Examples - Copyright (C) 2002 Uwe Rathmann
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* This file may be used under the terms of the 3-clause BSD License
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*****************************************************************************/
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#include "Plot.h"
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#include <QwtColorMap>
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#include <QwtPlotSpectrogram>
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#include <QwtPlotLayout>
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#include <QwtMatrixRasterData>
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#include <QwtScaleWidget>
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#include <QwtPlotMagnifier>
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#include <QwtPlotPanner>
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#include <QwtPlotRenderer>
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#include <QwtPlotGrid>
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#include <QwtPlotCanvas>
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#include <QwtInterval>
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namespace
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{
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class RasterData : public QwtMatrixRasterData
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{
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public:
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RasterData()
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{
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const double matrix[] =
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{
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1, 2, 4, 1,
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6, 3, 5, 2,
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4, 2, 1, 5,
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5, 4, 2, 3
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};
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QVector< double > values;
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for ( uint i = 0; i < sizeof( matrix ) / sizeof( double ); i++ )
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values += matrix[i];
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const int numColumns = 4;
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setValueMatrix( values, numColumns );
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setInterval( Qt::XAxis,
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QwtInterval( -0.5, 3.5, QwtInterval::ExcludeMaximum ) );
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setInterval( Qt::YAxis,
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QwtInterval( -0.5, 3.5, QwtInterval::ExcludeMaximum ) );
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setInterval( Qt::ZAxis, QwtInterval( 1.0, 6.0 ) );
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}
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};
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class ColorMap : public QwtLinearColorMap
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{
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public:
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ColorMap()
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: QwtLinearColorMap( Qt::darkBlue, Qt::darkRed )
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{
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addColorStop( 0.2, Qt::blue );
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addColorStop( 0.4, Qt::cyan );
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addColorStop( 0.6, Qt::yellow );
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addColorStop( 0.8, Qt::red );
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}
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};
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}
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Plot::Plot( QWidget* parent ):
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QwtPlot( parent )
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{
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QwtPlotCanvas* canvas = new QwtPlotCanvas();
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canvas->setBorderRadius( 10 );
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setCanvas( canvas );
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#if 0
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QwtPlotGrid* grid = new QwtPlotGrid();
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grid->setPen( Qt::DotLine );
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grid->attach( this );
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#endif
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m_spectrogram = new QwtPlotSpectrogram();
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m_spectrogram->setRenderThreadCount( 0 ); // use system specific thread count
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m_spectrogram->setColorMap( new ColorMap() );
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m_spectrogram->setData( new RasterData() );
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m_spectrogram->attach( this );
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const QwtInterval zInterval = m_spectrogram->data()->interval( Qt::ZAxis );
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// A color bar on the right axis
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QwtScaleWidget* rightAxis = axisWidget( QwtAxis::YRight );
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rightAxis->setColorBarEnabled( true );
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rightAxis->setColorBarWidth( 40 );
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rightAxis->setColorMap( zInterval, new ColorMap() );
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setAxisScale( QwtAxis::YRight, zInterval.minValue(), zInterval.maxValue() );
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setAxisVisible( QwtAxis::YRight );
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plotLayout()->setAlignCanvasToScales( true );
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setAxisScale( QwtAxis::XBottom, 0.0, 3.0 );
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setAxisMaxMinor( QwtAxis::XBottom, 0 );
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setAxisScale( QwtAxis::YLeft, 0.0, 3.0 );
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setAxisMaxMinor( QwtAxis::YLeft, 0 );
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QwtPlotMagnifier* magnifier = new QwtPlotMagnifier( canvas );
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magnifier->setAxisEnabled( QwtAxis::YRight, false );
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QwtPlotPanner* panner = new QwtPlotPanner( canvas );
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panner->setAxisEnabled( QwtAxis::YRight, false );
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}
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void Plot::exportPlot()
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{
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QwtPlotRenderer renderer;
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renderer.exportTo( this, "rasterview.pdf" );
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}
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void Plot::setResampleMode( int mode )
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{
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RasterData* rasterData = static_cast< RasterData* >( m_spectrogram->data() );
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rasterData->setResampleMode(
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static_cast< QwtMatrixRasterData::ResampleMode >( mode ) );
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replot();
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}
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#include "moc_Plot.cpp"
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