void Plot::clear() { this->detachItems(); pointsArr.clear(); // ...a horizontal line at y = 1... QwtPlotMarker *mY1 = new QwtPlotMarker(); mY1->setLabel( QString::fromLatin1( "y = 1" ) ); mY1->setLabelAlignment( Qt::AlignRight | Qt::AlignTop ); mY1->setLineStyle( QwtPlotMarker::HLine ); mY1->setYValue( 1.0 ); mY1->setLinePen(Qt::black, 1, Qt::DashLine); mY1->attach( this ); QwtPlotMarker *mY = new QwtPlotMarker(); mY->setLabel( QString::fromLatin1( "y = 0" ) ); mY->setLabelAlignment( Qt::AlignRight | Qt::AlignTop ); mY->setLineStyle( QwtPlotMarker::HLine ); mY->setYValue( 0.0 ); mY->attach( this ); // ...a vertical line at x = 0 QwtPlotMarker *mX = new QwtPlotMarker(); mX->setLabel( QString::fromLatin1( "x = 0" ) ); mX->setLabelAlignment( Qt::AlignLeft | Qt::AlignBottom ); mX->setLabelOrientation( Qt::Vertical ); mX->setLineStyle( QwtPlotMarker::VLine ); mX->setLinePen( Qt::black, 0, Qt::DashDotLine ); mX->setXValue( 0 ); mX->attach( this ); }
Plot::Plot() { setTitle("A Simple QwtPlot Demonstration"); insertLegend(new QwtLegend(), QwtPlot::RightLegend); // Set axis titles setAxisTitle(xBottom, "x -->"); setAxisTitle(yLeft, "y -->"); // Insert new curves QwtPlotCurve *cSin = new QwtPlotCurve("y = sin(x)"); #if QT_VERSION >= 0x040000 cSin->setRenderHint(QwtPlotItem::RenderAntialiased); #endif cSin->setPen(QPen(Qt::red)); cSin->attach(this); QwtPlotCurve *cCos = new QwtPlotCurve("y = cos(x)"); #if QT_VERSION >= 0x040000 cCos->setRenderHint(QwtPlotItem::RenderAntialiased); #endif cCos->setPen(QPen(Qt::blue)); cCos->attach(this); // Create sin and cos data const int nPoints = 100; cSin->setData(SimpleData(::sin, nPoints)); cCos->setData(SimpleData(::cos, nPoints)); // Insert markers // ...a horizontal line at y = 0... QwtPlotMarker *mY = new QwtPlotMarker(); mY->setLabel(QString::fromLatin1("y = 0")); mY->setLabelAlignment(Qt::AlignRight|Qt::AlignTop); mY->setLineStyle(QwtPlotMarker::HLine); mY->setYValue(0.0); mY->attach(this); // ...a vertical line at x = 2 * pi QwtPlotMarker *mX = new QwtPlotMarker(); mX->setLabel(QString::fromLatin1("x = 2 pi")); mX->setLabelAlignment(Qt::AlignLeft | Qt::AlignBottom); mX->setLabelOrientation(Qt::Vertical); mX->setLineStyle(QwtPlotMarker::VLine); mX->setLinePen(QPen(Qt::black, 0, Qt::DashDotLine)); mX->setXValue(2.0 * M_PI); mX->attach(this); }
void QmitkTbssRoiAnalysisWidget::drawBar(int x) { m_Plot->detachItems(QwtPlotItem::Rtti_PlotMarker, true); QwtPlotMarker *mX = new QwtPlotMarker(); //mX->setLabel(QString::fromLatin1("selected point")); mX->setLabelAlignment(Qt::AlignLeft | Qt::AlignBottom); mX->setLabelOrientation(Qt::Vertical); mX->setLineStyle(QwtPlotMarker::VLine); mX->setLinePen(QPen(Qt::black, 0, Qt::SolidLine)); mX->setXValue(x); mX->attach(m_Plot); this->Replot(); }
void Plot::populate() { // Insert new curves QwtPlotCurve *cSin = new QwtPlotCurve("y = sin(x)"); cSin->setRenderHint(QwtPlotItem::RenderAntialiased); cSin->setLegendAttribute(QwtPlotCurve::LegendShowLine, true); cSin->setPen(QPen(Qt::red)); cSin->attach(this); QwtPlotCurve *cCos = new QwtPlotCurve("y = cos(x)"); cCos->setRenderHint(QwtPlotItem::RenderAntialiased); cCos->setLegendAttribute(QwtPlotCurve::LegendShowLine, true); cCos->setPen(QPen(Qt::blue)); cCos->attach(this); // Create sin and cos data cSin->setData(new FunctionData(::sin)); cCos->setData(new FunctionData(::cos)); // Insert markers // ...a horizontal line at y = 0... QwtPlotMarker *mY = new QwtPlotMarker(); mY->setLabel(QString::fromLatin1("y = 0")); mY->setLabelAlignment(Qt::AlignRight|Qt::AlignTop); mY->setLineStyle(QwtPlotMarker::HLine); mY->setYValue(0.0); mY->attach(this); // ...a vertical line at x = 2 * pi QwtPlotMarker *mX = new QwtPlotMarker(); mX->setLabel(QString::fromLatin1("x = 2 pi")); mX->setLabelAlignment(Qt::AlignLeft | Qt::AlignBottom); mX->setLabelOrientation(Qt::Vertical); mX->setLineStyle(QwtPlotMarker::VLine); mX->setLinePen(QPen(Qt::black, 0, Qt::DashDotLine)); mX->setXValue(2.0 * M_PI); mX->attach(this); }
Plot::Plot(QWidget *parent): QwtPlot( parent ) { setAutoFillBackground( true ); setPalette( QPalette( QColor( 165, 193, 228 ) ) ); updateGradient(); setTitle( "График аппроксимации" ); insertLegend( new QwtLegend(), QwtPlot::RightLegend ); // axes setAxisTitle( xBottom, "" ); setAxisScale( xBottom, 0.0, 10.0 ); setAxisTitle( yLeft, "Функция принадлежности -->" ); setAxisScale( yLeft, 0, 2 ); // canvas QwtPlotCanvas *canvas = new QwtPlotCanvas(); canvas->setLineWidth( 1 ); canvas->setFrameStyle( QFrame::Box | QFrame::Plain ); canvas->setBorderRadius( 15 ); QPalette canvasPalette( Qt::white ); canvasPalette.setColor( QPalette::Foreground, QColor( 133, 190, 232 ) ); canvas->setPalette( canvasPalette ); setCanvas( canvas ); // panning with the left mouse button ( void ) new QwtPlotPanner( canvas ); // zoom in/out with the wheel ( void ) new QwtPlotMagnifier( canvas ); // ...a horizontal line at y = 0... QwtPlotMarker *mY = new QwtPlotMarker(); mY->setLabel( QString::fromLatin1( "y = 0" ) ); mY->setLabelAlignment( Qt::AlignRight | Qt::AlignTop ); mY->setLineStyle( QwtPlotMarker::HLine ); mY->setYValue( 0.0 ); mY->attach( this ); // ...a horizontal line at y = 1... QwtPlotMarker *mY1 = new QwtPlotMarker(); mY1->setLabel( QString::fromLatin1( "y = 1" ) ); mY1->setLabelAlignment( Qt::AlignRight | Qt::AlignTop ); mY1->setLineStyle( QwtPlotMarker::HLine ); mY1->setYValue( 1.0 ); mY1->setLinePen(Qt::black, 1, Qt::DashLine); mY1->attach( this ); // ...a vertical line at x = 0 QwtPlotMarker *mX = new QwtPlotMarker(); mX->setLabel( QString::fromLatin1( "x = 0" ) ); mX->setLabelAlignment( Qt::AlignLeft | Qt::AlignBottom ); mX->setLabelOrientation( Qt::Vertical ); mX->setLineStyle( QwtPlotMarker::VLine ); mX->setLinePen( Qt::black, 0, Qt::DashDotLine ); mX->setXValue( 0 ); mX->attach( this ); // curvePoints = new QwtPlotCurve(); // curvePoints->setStyle( QwtPlotCurve::Dots ); // curvePoints->attach( this ); }
void QgsHistogramWidget::drawHistogram() { if ( !mVectorLayer || mSourceFieldExp.isEmpty() ) return; QApplication::setOverrideCursor( Qt::WaitCursor ); if ( mValues.empty() ) { bool ok; mValues = mVectorLayer->getDoubleValues( mSourceFieldExp, ok ); if ( ! ok ) { QApplication::restoreOverrideCursor(); return; } qSort( mValues.begin(), mValues.end() ); mHistogram.setValues( mValues ); mBinsSpinBox->blockSignals( true ); mBinsSpinBox->setValue( qMax( mHistogram.optimalNumberBins(), 30 ) ); mBinsSpinBox->blockSignals( false ); mStats.setStatistics( QgsStatisticalSummary::StDev ); mStats.calculate( mValues ); } // clear plot mpPlot->detachItems(); //ensure all children get removed mpPlot->setAutoDelete( true ); // Set axis titles mpPlot->setAxisTitle( QwtPlot::xBottom, QObject::tr( "Value" ) ); mpPlot->setAxisTitle( QwtPlot::yLeft, QObject::tr( "Count" ) ); mpPlot->setAxisAutoScale( QwtPlot::yLeft ); mpPlot->setAxisAutoScale( QwtPlot::xBottom ); // add a grid QwtPlotGrid * grid = new QwtPlotGrid(); grid->enableX( false ); grid->setPen( mGridPen ); grid->attach( mpPlot ); // make colors list mHistoColors.clear(); foreach ( QgsRendererRangeV2 range, mRanges ) { mHistoColors << ( range.symbol() ? range.symbol()->color() : Qt::black ); } //draw histogram #if defined(QWT_VERSION) && QWT_VERSION>=0x060000 QwtPlotHistogram * plotHistogram = 0; plotHistogram = createPlotHistogram( mRanges.count() > 0 ? mRanges.at( 0 ).label() : QString(), mRanges.count() > 0 ? QBrush( mHistoColors.at( 0 ) ) : mBrush, mRanges.count() > 0 ? Qt::NoPen : mPen ); #else HistogramItem *plotHistogramItem = 0; plotHistogramItem = createHistoItem( mRanges.count() > 0 ? mRanges.at( 0 ).label() : QString(), mRanges.count() > 0 ? QBrush( mHistoColors.at( 0 ) ) : mBrush, mRanges.count() > 0 ? Qt::NoPen : mPen ); #endif #if defined(QWT_VERSION) && QWT_VERSION>=0x060000 QVector<QwtIntervalSample> dataHisto; #else // we safely assume that QT>=4.0 (min version is 4.7), therefore QwtArray is a QVector, so don't set size here QwtArray<QwtDoubleInterval> intervalsHisto; QwtArray<double> valuesHisto; #endif int bins = mBinsSpinBox->value(); QList<double> edges = mHistogram.binEdges( bins ); QList<int> counts = mHistogram.counts( bins ); int rangeIndex = 0; int lastValue = 0; for ( int bin = 0; bin < bins; ++bin ) { int binValue = counts.at( bin ); //current bin crosses two graduated ranges, so we split between //two histogram items if ( rangeIndex < mRanges.count() - 1 && edges.at( bin ) > mRanges.at( rangeIndex ).upperValue() ) { rangeIndex++; #if defined(QWT_VERSION) && QWT_VERSION>=0x060000 plotHistogram->setSamples( dataHisto ); plotHistogram->attach( mpPlot ); plotHistogram = createPlotHistogram( mRanges.at( rangeIndex ).label(), mHistoColors.at( rangeIndex ) ); dataHisto.clear(); dataHisto << QwtIntervalSample( lastValue, mRanges.at( rangeIndex - 1 ).upperValue(), edges.at( bin ) ); #else plotHistogramItem->setData( QwtIntervalData( intervalsHisto, valuesHisto ) ); plotHistogramItem->attach( mpPlot ); plotHistogramItem = createHistoItem( mRanges.at( rangeIndex ).label(), mHistoColors.at( rangeIndex ) ); intervalsHisto.clear(); valuesHisto.clear(); intervalsHisto.append( QwtDoubleInterval( mRanges.at( rangeIndex - 1 ).upperValue(), edges.at( bin ) ) ); valuesHisto.append( lastValue ); #endif } double upperEdge = mRanges.count() > 0 ? qMin( edges.at( bin + 1 ), mRanges.at( rangeIndex ).upperValue() ) : edges.at( bin + 1 ); #if defined(QWT_VERSION) && QWT_VERSION>=0x060000 dataHisto << QwtIntervalSample( binValue, edges.at( bin ), upperEdge ); #else intervalsHisto.append( QwtDoubleInterval( edges.at( bin ), upperEdge ) ); valuesHisto.append( double( binValue ) ); #endif lastValue = binValue; } #if defined(QWT_VERSION) && QWT_VERSION>=0x060000 plotHistogram->setSamples( dataHisto ); plotHistogram->attach( mpPlot ); #else plotHistogramItem->setData( QwtIntervalData( intervalsHisto, valuesHisto ) ); plotHistogramItem->attach( mpPlot ); #endif mRangeMarkers.clear(); foreach ( QgsRendererRangeV2 range, mRanges ) { QwtPlotMarker* rangeMarker = new QwtPlotMarker(); rangeMarker->attach( mpPlot ); rangeMarker->setLineStyle( QwtPlotMarker::VLine ); rangeMarker->setXValue( range.upperValue() ); rangeMarker->setLabel( QString::number( range.upperValue() ) ); rangeMarker->setLabelOrientation( Qt::Vertical ); rangeMarker->setLabelAlignment( Qt::AlignLeft | Qt::AlignTop ); rangeMarker->show(); mRangeMarkers << rangeMarker; }
//-------------------------------------------------------------------------------------------------- /// //-------------------------------------------------------------------------------------------------- void RiuPvtPlotWidget::plotCurves(RiaEclipseUnitTools::UnitSystem unitSystem, const std::vector<RigFlowDiagSolverInterface::PvtCurve>& curveArr, double pressure, double pointMarkerYValue, QString pointMarkerLabel, QString plotTitle, QString yAxisTitle) { m_qwtPlot->detachItems(QwtPlotItem::Rtti_PlotCurve); m_qwtPlot->detachItems(QwtPlotItem::Rtti_PlotMarker); m_qwtCurveArr.clear(); m_pvtCurveArr.clear(); m_trackerPlotMarker = nullptr; // Construct an auxiliary curve that connects the first point in all the input curves as a visual aid // This should only be shown when the phase being plotted is oil // Will not be added to our array of qwt curves since we do not expect the user to interact with it { std::vector<double> xVals; std::vector<double> yVals; for (size_t i = 0; i < curveArr.size(); i++) { const RigFlowDiagSolverInterface::PvtCurve& curve = curveArr[i]; if (curve.phase == RigFlowDiagSolverInterface::PvtCurve::OIL && curve.pressureVals.size() > 0 && curve.yVals.size() > 0) { xVals.push_back(curve.pressureVals[0]); yVals.push_back(curve.yVals[0]); } } if (xVals.size() > 1) { QwtPlotCurve* qwtCurve = new QwtPlotCurve(); qwtCurve->setSamples(xVals.data(), yVals.data(), static_cast<int>(xVals.size())); qwtCurve->setStyle(QwtPlotCurve::Lines); qwtCurve->setRenderHint(QwtPlotItem::RenderAntialiased, true); QColor curveClr = Qt::darkGreen; const QPen curvePen(curveClr); qwtCurve->setPen(curvePen); qwtCurve->attach(m_qwtPlot); } } // Add the primary curves for (size_t i = 0; i < curveArr.size(); i++) { const RigFlowDiagSolverInterface::PvtCurve& curve = curveArr[i]; QwtPlotCurve* qwtCurve = new QwtPlotCurve(); CVF_ASSERT(curve.pressureVals.size() == curve.yVals.size()); qwtCurve->setSamples(curve.pressureVals.data(), curve.yVals.data(), static_cast<int>(curve.pressureVals.size())); qwtCurve->setStyle(QwtPlotCurve::Lines); QColor curveClr = Qt::magenta; if (curve.phase == RigFlowDiagSolverInterface::PvtCurve::GAS) curveClr = QColor(Qt::red); else if (curve.phase == RigFlowDiagSolverInterface::PvtCurve::OIL) curveClr = QColor(Qt::green); const QPen curvePen(curveClr); qwtCurve->setPen(curvePen); qwtCurve->setRenderHint(QwtPlotItem::RenderAntialiased, true); QwtSymbol* curveSymbol = new QwtSymbol(QwtSymbol::Ellipse); curveSymbol->setSize(6, 6); curveSymbol->setPen(curvePen); curveSymbol->setBrush(Qt::NoBrush); qwtCurve->setSymbol(curveSymbol); qwtCurve->attach(m_qwtPlot); m_qwtCurveArr.push_back(qwtCurve); } m_pvtCurveArr = curveArr; CVF_ASSERT(m_pvtCurveArr.size() == m_qwtCurveArr.size()); // Add vertical marker line to indicate cell pressure if (pressure != HUGE_VAL) { QwtPlotMarker* lineMarker = new QwtPlotMarker; lineMarker->setXValue(pressure); lineMarker->setLineStyle(QwtPlotMarker::VLine); lineMarker->setLinePen(QPen(QColor(128, 128, 255), 1, Qt::DashLine)); lineMarker->setLabel(QString("PRESSURE")); lineMarker->setLabelAlignment(Qt::AlignTop | Qt::AlignRight); lineMarker->setLabelOrientation(Qt::Vertical); lineMarker->attach(m_qwtPlot); } // Then point marker if (pressure != HUGE_VAL && pointMarkerYValue != HUGE_VAL) { QwtPlotMarker* pointMarker = new QwtPlotMarker; pointMarker->setValue(pressure, pointMarkerYValue); QColor markerClr(128, 0, 255); QwtSymbol* symbol = new QwtSymbol(QwtSymbol::Ellipse); symbol->setSize(13, 13); symbol->setPen(QPen(markerClr, 2)); symbol->setBrush(Qt::NoBrush); pointMarker->setSymbol(symbol); if (!pointMarkerLabel.isEmpty()) { QwtText text(pointMarkerLabel); text.setRenderFlags(Qt::AlignLeft); text.setColor(markerClr); pointMarker->setLabel(text); pointMarker->setLabelAlignment(Qt::AlignTop | Qt::AlignRight); } pointMarker->attach(m_qwtPlot); } m_qwtPlot->setTitle(plotTitle); m_qwtPlot->setAxisTitle(QwtPlot::xBottom, QString("Pressure [%1]").arg(RiaEclipseUnitTools::unitStringPressure(unitSystem))); m_qwtPlot->setAxisTitle(QwtPlot::yLeft, yAxisTitle); updateTrackerPlotMarkerAndLabelFromPicker(); m_qwtPlot->replot(); }