QwtPlotPicker - QwtPlotPicker provides selections on a plot canvas.

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Version 6.1.4                                    Wed Jan 2 2019                                 QwtPlotPicker(3)

QwtPlotPicker::QwtPlotPicker(QWidget*canvas)[explicit]
       Create a plot picker. The picker is set to those x- and y-axis of the plot that are enabled. If both or
       no x-axis are enabled, the picker is set to QwtPlot::xBottom. If both or no y-axis are enabled, it is set
       to QwtPlot::yLeft.

       Parameters:canvas Plot canvas to observe, also the parent object

       Seealso:QwtPlot::autoReplot(), QwtPlot::replot(), scaleRect()QwtPlotPicker::QwtPlotPicker(intxAxis,intyAxis,QWidget*canvas)[explicit]
       Create a plot picker

       Parameters:xAxis Set the x axis of the picker
           yAxis Set the y axis of the picker
           canvas Plot canvas to observe, also the parent object

       Seealso:QwtPlot::autoReplot(), QwtPlot::replot(), scaleRect()QwtPlotPicker::QwtPlotPicker(intxAxis,intyAxis,RubberBandrubberBand,DisplayModetrackerMode,QWidget*canvas)[explicit]
       Create a plot picker

       Parameters:xAxis X axis of the picker
           yAxis Y axis of the picker
           rubberBand Rubber band style
           trackerMode Tracker mode
           canvas Plot canvas to observe, also the parent object

       Seealso:QwtPicker, QwtPicker::setSelectionFlags(), QwtPicker::setRubberBand(), QwtPicker::setTrackerModeQwtPlot::autoReplot(), QwtPlot::replot(), scaleRect()

QwtPlotPicker provides selections on a plot canvas.

       QwtPlotPicker is a QwtPicker tailored for selections on a plot canvas. It is set to a x-Axis and y-Axis
       and translates all pixel coordinates into this coordinate system.

voidQwtPlotPicker::append(constQPoint&pos)[protected],[virtual]
       Append a point to the selection and update rubber band and tracker.

       Parameters:pos Additional point

       Seealso:isActive, begin(), end(), move(), appended()Note:
           The appended(constQPoint&), appended(const QDoublePoint &) signals are emitted.

       Reimplemented from QwtPicker.

   voidQwtPlotPicker::appended(constQPointF&pos)[signal]
       A signal emitted when a point has been appended to the selection

       Parameters:pos Position of the appended point.

       Seealso:append(). moved()QWidget*QwtPlotPicker::canvas()Returns:
           Observed plot canvas

   constQWidget*QwtPlotPicker::canvas()constReturns:
           Observed plot canvas

   boolQwtPlotPicker::end(boolok=true)[protected],[virtual]
       Close a selection setting the state to inactive.

       Parameters:ok If true, complete the selection and emit selected signals otherwise discard the selection.

       Returns:
           True if the selection has been accepted, false otherwise

       Reimplemented from QwtPicker.

       Reimplemented in QwtPlotZoomer.

   QRectFQwtPlotPicker::invTransform(constQRect&rect)const[protected]
       Translate a rectangle from pixel into plot coordinates

       Returns:
           Rectangle in plot coordinates

       Seealso:transform()QPointFQwtPlotPicker::invTransform(constQPoint&pos)const[protected]
       Translate a point from pixel into plot coordinates

       Returns:
           Point in plot coordinates

       Seealso:transform()voidQwtPlotPicker::move(constQPoint&pos)[protected],[virtual]
       Move the last point of the selection

       Parameters:pos New position

       Seealso:isActive, begin(), end(), append()Note:
           The moved(constQPoint&), moved(const QDoublePoint &) signals are emitted.

       Reimplemented from QwtPicker.

   voidQwtPlotPicker::moved(constQPointF&pos)[signal]
       A signal emitted whenever the last appended point of the selection has been moved.

       Parameters:pos Position of the moved last point of the selection.

       Seealso:move(), appended()QwtPlot*QwtPlotPicker::plot()Returns:
           Plot widget, containing the observed plot canvas

   constQwtPlot*QwtPlotPicker::plot()constReturns:
           Plot widget, containing the observed plot canvas

   QRectFQwtPlotPicker::scaleRect()const[protected]Returns:
           Normalized bounding rectangle of the axes

       Seealso:QwtPlot::autoReplot(), QwtPlot::replot().

   voidQwtPlotPicker::selected(constQPointF&pos)[signal]
       A signal emitted in case of QwtPickerMachine::PointSelection.

       Parameters:pos Selected point

   voidQwtPlotPicker::selected(constQRectF&rect)[signal]
       A signal emitted in case of QwtPickerMachine::RectSelection.

       Parameters:rect Selected rectangle

   voidQwtPlotPicker::selected(constQVector<QPointF>&pa)[signal]
       A signal emitting the selected points, at the end of a selection.

       Parameters:pa Selected points

   voidQwtPlotPicker::setAxis(intxAxis,intyAxis)[virtual]
       Set the x and y axes of the picker

       Parameters:xAxis X axis
           yAxis Y axis

       Reimplemented in QwtPlotZoomer.

   QwtTextQwtPlotPicker::trackerText(constQPoint&pos)const[protected],[virtual]
       Translate a pixel position into a position string

       Parameters:pos Position in pixel coordinates

       Returns:
           Position string

       Reimplemented from QwtPicker.

   QwtTextQwtPlotPicker::trackerTextF(constQPointF&pos)const[protected],[virtual]
       Translate a position into a position string. In case of HLineRubberBand the label is the value of the y
       position, in case of VLineRubberBand the value of the x position. Otherwise the label contains x and y
       position separated by a ',' .

       The format for the double to string conversion is '%.4f'.

       Parameters:pos Position

       Returns:
           Position string

   QRectQwtPlotPicker::transform(constQRectF&rect)const[protected]
       Translate a rectangle from plot into pixel coordinates

       Returns:
           Rectangle in pixel coordinates

       Seealso:invTransform()QPointQwtPlotPicker::transform(constQPointF&pos)const[protected]
       Translate a point from plot into pixel coordinates

       Returns:
           Point in pixel coordinates

       Seealso:invTransform()

       QwtPlotPicker - QwtPlotPicker provides selections on a plot canvas.

       #include <qwt_plot_picker.h>

       Inherits QwtPicker.

       Inherited by QwtPlotZoomer.

   Signals
       void selected (const QPointF &pos)
       void selected (const QRectF &rect)
       void selected (const QVector< QPointF > &pa)
       void appended (const QPointF &pos)
       void moved (const QPointF &pos)

   PublicMemberFunctionsQwtPlotPicker (QWidget *canvas)
           Create a plot picker.
       virtual ~QwtPlotPicker ()
           Destructor.
       QwtPlotPicker (int xAxis, int yAxis, QWidget *)
       QwtPlotPicker (int xAxis, int yAxis, RubberBandrubberBand, DisplayModetrackerMode, QWidget *)
       virtual void setAxis (int xAxis, int yAxis)
       int xAxis () const
           Return x axis.
       int yAxis () const
           Return y axis.
       QwtPlot * plot ()
       const QwtPlot * plot () const
       QWidget * canvas ()
       const QWidget * canvas () const

   ProtectedMemberFunctions
       QRectF scaleRect () const
       QRectF invTransform (const QRect &) const
       QRect transform (const QRectF &) const
       QPointF invTransform (const QPoint &) const
       QPoint transform (const QPointF &) const
       virtual QwtTexttrackerText (const QPoint &) const
       virtual QwtTexttrackerTextF (const QPointF &) const
           Translate a position into a position string.
       virtual void move (const QPoint &)
       virtual void append (const QPoint &)
       virtual bool end (bool ok=true)

   AdditionalInheritedMembers