QwtPlotMagnifier(3)            Qwt User's Guide            QwtPlotMagnifier(3)

NAME
       QwtPlotMagnifier - QwtPlotMagnifier provides zooming, by magnifying in
       steps.


SYNOPSIS
       #include <qwt_plot_magnifier.h>

       Inherits QwtMagnifier.

   Public Slots
       virtual void rescale (double factor) override

   Public Member Functions
       QwtPlotMagnifier (QWidget *)
       virtual ~QwtPlotMagnifier ()
           Destructor.
       void setAxisEnabled (QwtAxisId, bool on)
           En/Disable an axis.
       bool isAxisEnabled (QwtAxisId) const
       QWidget * canvas ()
           Return observed plot canvas.
       const QWidget * canvas () const
           Return Observed plot canvas.
       QwtPlot * plot ()
           Return plot widget, containing the observed plot canvas.
       const QwtPlot * plot () const
           Return plot widget, containing the observed plot canvas.

   Additional Inherited Members

Detailed Description
       QwtPlotMagnifier provides zooming, by magnifying in steps.

       Using QwtPlotMagnifier a plot can be zoomed in/out in steps using keys,
       the mouse wheel or moving a mouse button in vertical direction.

       Together with QwtPlotZoomer and QwtPlotPanner it is possible to
       implement individual and powerful navigation of the plot canvas.

       See also
           QwtPlotZoomer, QwtPlotPanner, QwtPlot

       Definition at line 30 of file qwt_plot_magnifier.h.

Constructor & Destructor Documentation
   QwtPlotMagnifier::QwtPlotMagnifier (QWidget * canvas) [explicit]
       Constructor

       Parameters
           canvas Plot canvas to be magnified

       Definition at line 30 of file qwt_plot_magnifier.cpp.

Member Function Documentation
   bool QwtPlotMagnifier::isAxisEnabled (QwtAxisId axisId) const
       Test if an axis is enabled

       Parameters
           axisId Axis

       Returns
           True, if the axis is enabled

       See also
           setAxisEnabled()

       Definition at line 67 of file qwt_plot_magnifier.cpp.

   void QwtPlotMagnifier::rescale (double factor) [override],  [virtual],
       [slot]
       Zoom in/out the axes scales

       Parameters
           factor A value < 1.0 zooms in, a value > 1.0 zooms out.

       Definition at line 111 of file qwt_plot_magnifier.cpp.

   void QwtPlotMagnifier::setAxisEnabled (QwtAxisId axisId, bool on)
       En/Disable an axis. Only Axes that are enabled will be zoomed. All
       other axes will remain unchanged.

       Parameters
           axisId Axis
           on On/Off

       See also
           isAxisEnabled()

       Definition at line 53 of file qwt_plot_magnifier.cpp.


Author
       Generated automatically by Doxygen for Qwt User's Guide from the source
       code.

Version 6.2.0                   Sun Jul 18 2021            QwtPlotMagnifier(3)