C++ QwtPlotMarker::attach方法代码示例

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 );
}

SimDialog::SimDialog( QWidget * parent, Qt::WFlags f) 
	: QDialog(parent, f)
{
  setupUi(this);

  // setup the plot ...
  m_plot->setTitle("Comparing Similarity Measures");
  m_plot->insertLegend(new QwtLegend(), QwtPlot::BottomLegend);

  // set up the axes ...
  m_plot->setAxisTitle(QwtPlot::xBottom, "Variations");
  m_plot->setAxisScale(QwtPlot::xBottom, -10, 10);

  m_plot->setAxisTitle(QwtPlot::yLeft, "Similarity");
  m_plot->setAxisScale(QwtPlot::yLeft, -1.5, 1.5);

  // enable grid ...
  QwtPlotGrid *grid = new QwtPlotGrid;
  grid->enableXMin(true);
  grid->enableYMin(true);
  grid->setMajPen(QPen(Qt::black, 0, Qt::DotLine));
  grid->setMinPen(QPen(Qt::gray, 0 , Qt::DotLine));
  grid->attach(m_plot);

  //  Insert zero line at y = 0
  QwtPlotMarker *mY = new QwtPlotMarker();
  mY->setLabelAlignment(Qt::AlignRight|Qt::AlignTop);
  mY->setLineStyle(QwtPlotMarker::HLine);
  mY->setYValue(0.0);
  mY->attach(m_plot);

  //  Insert zero line at x = 0
  QwtPlotMarker *mX = new QwtPlotMarker();
  mX->setLabelAlignment(Qt::AlignRight|Qt::AlignTop);
  mX->setLineStyle(QwtPlotMarker::VLine);
  mX->setXValue(0.0);
  mX->attach(m_plot);

  // Insert new curves
  cReg = new QwtPlotCurve("Regular Similarity Measure");
  cReg->attach(m_plot);

  cOct = new QwtPlotCurve("Octree based Similarity Measure");
  cOct->attach(m_plot);

  // Set curve styles
  cReg->setPen(QPen(Qt::red, 2));
  cOct->setPen(QPen(Qt::blue, 2));

  // Populate the volume combos ...
  MainWindow* _win  = (MainWindow *)this->parent();
  viewer3d *  _view = (viewer3d *) _win->getViewer();
  QList<Volume*> _vols = _view->getVolumes();

  // append Volume names to combo boxes ...
  // Need to modify Volume class so that it stored patient name ...
  // More importantly modify PatientBrowser so that the data can be directly
  // loaded.
}

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 Variog_plot::mouseReleaseEvent(QMouseEvent * event)
{
  std::cerr << "show_pairs_count() called " << std::endl;
  if( event->button() != Qt::RightButton ) return;

  const float offset=1.02;
  QFont font;
  font.setPointSize( 7 );

  if( !pairs_shown_ ) {
    for( unsigned int i=0; i < pairs_.size(); i++ ) {
      QString label;
      label.setNum( pairs_[i] );
      QwtText T(label);
      
      QwtPlotMarker * marker = new QwtPlotMarker();
      marker->attach(this);

      T.setFont(font);
      marker->setValue(pairs_coord_x_[i], pairs_coord_y_[i]*offset);
      marker->setLabel(T);
    }
    pairs_shown_ = true;
  }
  else {
    detachItems(QwtPlotItem::Rtti_PlotMarker);
    pairs_shown_ = false;
  }
  replot();
}

void PlotWindow::drawLapMarkers()
{
	if (_data_log->numLaps() > 1)
	{
		for (int i=0; i < _data_log->numLaps(); ++i)
		{
			QwtPlotMarker* marker = new QwtPlotMarker;
			marker->setLineStyle(QwtPlotMarker::VLine);
			marker->setLinePen(QPen(Qt::DotLine));
			if (_x_axis_measurement->currentIndex() == 0) // time
			{
				const double time = _data_log->time(_data_log->lap(i).second);
				marker->setXValue(time);
			}
			else // distance
			{
				const double dist = _data_log->dist(_data_log->lap(i).second);
				marker->setXValue(dist);
			}
			marker->attach(_plot);
			marker->show();
			_lap_markers.push_back(marker);
		}
	}
}

DataPlot::DataPlot(QWidget *parent, TelemetryStateReceiver* collector, OdometryStateReceiver* odometryReceiver,QMap<QString, QStringList> *list) :
    QwtPlot(parent),
    d_interval(0),
    d_timerId(-1)
{
    node=collector;
    odom_receiver=odometryReceiver;
    connect_status=false;
    QObject::connect( node, SIGNAL( parameterReceived( )), this, SLOT( onParameterReceived( )));

    data_count=0;
    posicionBuffer=PLOT_SIZE;
    colors_list <<"red"<<"blue"<<"green"<<"black"<<"yellow"<<"magenta"<<"cyan"<<"gray"<<"darkCyan"<<"darkMagenta"<<"darkYellow"<<"darkGray"<<"darkRed"<<"darkBlue"<<"darkGreen"<<"lightGray" <<"red"<<"blue"<<"green"<<"black"<<"yellow"<<"magenta"<<"cyan"<<"gray"<<"darkCyan"<<"darkMagenta"<<"darkYellow"<<"darkGray"<<"darkRed"<<"darkBlue"<<"darkGreen"<<"lightGray" <<"red"<<"blue"<<"green"<<"black"<<"yellow"<<"magenta"<<"cyan"<<"gray"<<"darkCyan"<<"darkMagenta"<<"darkYellow"<<"darkGray"<<"darkRed"<<"darkBlue"<<"darkGreen"<<"lightGray" <<"red"<<"blue"<<"green"<<"black"<<"yellow"<<"magenta"<<"cyan"<<"gray"<<"darkCyan"<<"darkMagenta"<<"darkYellow"<<"darkGray"<<"darkRed"<<"darkBlue"<<"darkGreen"<<"lightGray";

    iterator_colors=0;
    is_stop_pressed=false;
    alignScales();
    setAutoReplot(false);

    parameters_list = setCurveLabels(*list);
    current_min_limit=0;
    current_max_limit=0;


    QwtPlotZoomer* zoomer = new MyZoomer(canvas());


    QwtPlotPanner *panner = new QwtPlotPanner(canvas());
    panner->setAxisEnabled(QwtPlot::yRight, true);
    panner->setMouseButton(Qt::MidButton);

    // Avoid jumping when labels with more/less digits
    // appear/disappear when scrolling vertically
    const QFontMetrics fm(axisWidget(QwtPlot::yLeft)->font());
    QwtScaleDraw *sd = axisScaleDraw(QwtPlot::yLeft);
    sd->setMinimumExtent( fm.width("100.00") );

    const QColor c(Qt::darkBlue);
    zoomer->setRubberBandPen(c);
    zoomer->setTrackerPen(c);

    setGridPlot();
    initTimeData();

#if 0
    //  Insert zero line at y = 0
    QwtPlotMarker *mY = new QwtPlotMarker();
    mY->setLabelAlignment(Qt::AlignRight|Qt::AlignTop);
    mY->setLineStyle(QwtPlotMarker::HLine);
    mY->setYValue(0.0);
    mY->attach(this);
#endif

    initAxisX();
    initAxisY();
    initCurves();

    setTimerInterval(1000);// 1 second = 1000
}

void SweepInspector::loadSweep(int index) {
  //load in new sweep values from data
  if (data == NULL) return;
  if ( (index < 0)  || (index >= data->getNumSweeps())) return;

  //remove old data and get new
  if (d_curve) d_curve->attach(NULL);
  detachItems();
  fsweep sweep = data->getSweep(index);

  d_curve = new QwtPlotCurve( data->timestampFromIndex(index) ); //Qwt will delete() this when its done with it
  d_curve->setRenderHint( QwtPlotItem::RenderAntialiased );
  d_curve->setStyle( QwtPlotCurve::Lines );
  d_curve->setPen( QColor( Qt::yellow ), 2, Qt::SolidLine );
  d_curve->setSamples( sweep );
  d_curve->attach(this);

  QwtInterval frange = data->limits(FREQ);
  //setAxisScale(QwtPlot::xBottom, frange.minValue(), frange.maxValue(), (frange.maxValue() - frange.minValue())/ 5.0);
  //setAxisScale(QwtPlot::yLeft, -135, 20, 10.0);
  setTitle( QString("RF Sweep @ %1").arg(data->timestampFromIndex(index)) );
  //set maximum zoom out
  zoomer->setZoomBase(QRectF(QPointF(frange.minValue(), 40), QPointF(frange.maxValue(), -135)));
  zoomer->zoomBase();

  //find max, min, and average values and drop it on plot as well
  double max = sweep.first().y(), min = sweep.first().y(), avg=0;
  for(int i=0; i < sweep.size(); i++) {
    max = std::max(max, sweep.at(i).y());
    min = std::min(min, sweep.at(i).y());
    avg += sweep.at(i).y();
  } avg /= sweep.size();

  //add markers onto the plot
  QwtPlotMarker *one = new QwtPlotMarker(), *two = new QwtPlotMarker();
  one->attach(this); one->setAxes(QwtPlot::xTop, QwtPlot::yRight);
  two->attach(this); two->setAxes(QwtPlot::xTop, QwtPlot::yRight);

  QwtText tone = QwtText(QString("Max: %1 dBm\nMin: %2 dBm\nAvg: %3 dBm").arg(max).arg(min).arg(avg));
  tone.setFont( QFont( "Helvetica", 10, QFont::Bold ) );
  tone.setColor( Qt::green );
  tone.setRenderFlags(Qt::AlignTop | Qt::AlignLeft);

  one->setLabel(tone);
  one->setValue(0, 10);
  one->setLabelAlignment(Qt::AlignBottom | Qt::AlignRight);

  QwtText ttwo(data->plotText());
  ttwo.setFont( QFont( "Helvetica", 10, QFont::Bold ) );
  ttwo.setColor( Qt::white );
  ttwo.setRenderFlags(Qt::AlignBottom | Qt::AlignRight);

  two->setLabel(ttwo);
  two->setValue(10, 10);
  two->setLabelAlignment(Qt::AlignBottom | Qt::AlignLeft);

  replot();
  repaint();
}

void wykres::dodaj_naj(double d) {
    QwtPlotMarker *mY = new QwtPlotMarker();
    mY->setLabel(QString::fromLatin1("Osobnik najlepszy = ")+QString::number(-d));
    mY->setLabelAlignment(Qt::AlignRight|Qt::AlignTop);
    mY->setLineStyle(QwtPlotMarker::HLine);
    mY->setYValue(-d);
    mY->attach(this);
}

void Plot_AddHLine(QwtPlot* plot, double value , double r , double g, double b)
{
    QwtPlotMarker *marker = new QwtPlotMarker();
    marker->setLineStyle ( QwtPlotMarker::HLine );
    marker->setLinePen(QPen(QColor(r, g, b, 128), 1, Qt::DashDotLine));
    marker->attach( plot );
    marker->setYValue( value );
}

  /**
   * This is a helper method to create new band markers with the same line
   *   style and a custom color.
   *
   * @param color The color of the band marker
   * @return The requested plot marker; ownership is passed to the caller
   */
  QwtPlotMarker *SpectralPlotWindow::createMarker(QColor color) {
    QPen markerPen(color);
    markerPen.setWidth(1);

    QwtPlotMarker *newMarker = new QwtPlotMarker;
    newMarker->setLineStyle(QwtPlotMarker::LineStyle(2));
    newMarker->setLinePen(markerPen);
    newMarker->attach(plot());
    newMarker->setVisible(false);

    return newMarker;
  }

/**
 * Dodaje dodatkowy opis wykresu.
 *
 * @param caption opis wykresu
 * @param x pozycja na wykresie w skali czasu
 * @param y pozycja na wykresie w skali pionowej (np. częstotliwości)
 */
void SpectrogramPlot::setExtraCaption(QString caption, double x, double y)
{
    QwtPlotMarker* marker = new QwtPlotMarker();
    QwtText label(caption);
    label.setColor(QColor::fromRgba(0x88FFFFFF));
    label.setFont(QFont("Arial", 10, QFont::Bold));
    marker->setLabel(label);
    marker->setLineStyle(QwtPlotMarker::NoLine);
    marker->setValue(x, y);
    marker->setLabelAlignment(Qt::AlignRight | Qt::AlignBottom);
    marker->attach(this);
}

void QgsCurveEditorWidget::addPlotMarker( double x, double y, bool isSelected )
{
  QColor borderColor( 0, 0, 0 );

  QColor brushColor = isSelected ? borderColor : QColor( 255, 255, 255, 0 );

  QwtPlotMarker *marker = new QwtPlotMarker();
  marker->setSymbol( new QwtSymbol( QwtSymbol::Ellipse,  QBrush( brushColor ), QPen( borderColor, isSelected ? 2 : 1 ), QSize( 8, 8 ) ) );
  marker->setValue( x, y );
  marker->attach( mPlot );
  marker->setRenderHint( QwtPlotItem::RenderAntialiased, true );
  mMarkers << marker;
}

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);
}

void caStripPlot::addText(double x, double y, char* text, QColor c, int fontsize)
{
    QwtPlotMarker *mY = new QwtPlotMarker();
    QwtText txt;
    txt.setText(text);
    txt.setFont(QFont("Helvetica",fontsize, QFont::Bold));
    txt.setColor(c);
    mY->setLabel(txt);
    mY->setLabelAlignment(Qt::AlignRight | Qt::AlignTop);
    mY->setXValue(x);
    mY->setYValue(y);
    mY->attach(this);
    replot();
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RicGridStatisticsDialog::setMarkers(const Rim3dOverlayInfoConfig::HistogramData& histData, QwtPlot* plot)
{
    auto scale = plot->axisScaleDiv(QwtPlot::yLeft);

    QwtPlotMarker* marker;

    if (histData.p10 != HUGE_VAL)
    {
        marker = createVerticalPlotMarker(Qt::red, histData.p10);
        marker->attach(plot);
    }

    if (histData.p90 != HUGE_VAL)
    {
        marker = createVerticalPlotMarker(Qt::red, histData.p90);
        marker->attach(plot);
    }

    if (histData.mean != HUGE_VAL)
    {
        marker = createVerticalPlotMarker(Qt::blue, histData.mean);
        marker->attach(plot);
    }
}