NAME¶

QwtPlotMagnifier - QwtPlotMagnifier provides zooming, by magnifying in steps.

SYNOPSIS¶

#include <qwt_plot_magnifier.h> Inherits QwtMagnifier.

Public Member Functions¶

QwtPlotMagnifier (QwtPlotCanvas *) virtual ~QwtPlotMagnifier () void setAxisEnabled (int axis, bool on) bool isAxisEnabled (int axis) const QwtPlotCanvas * canvas () const QwtPlotCanvas * canvas () const QwtPlot * plot () const QwtPlot * plot () const

Protected Member Functions¶

virtual void rescale (double factor)

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:

Constructor & Destructor Documentation¶

QwtPlotMagnifier::QwtPlotMagnifier (QwtPlotCanvas *canvas) [explicit] Constructor¶

Parameters:

QwtPlotMagnifier::~QwtPlotMagnifier () [virtual]¶

Destructor.

Member Function Documentation¶

QwtPlotCanvas * QwtPlotMagnifier::canvas ()¶

Return observed plot canvas.

const QwtPlotCanvas * QwtPlotMagnifier::canvas () const¶

Return Observed plot canvas.

bool QwtPlotMagnifier::isAxisEnabled (intaxis) const Test if an axis is enabled¶

Parameters: Returns: See also:

QwtPlot * QwtPlotMagnifier::plot ()¶

Return plot widget, containing the observed plot canvas.

const QwtPlot * QwtPlotMagnifier::plot () const¶

Return plot widget, containing the observed plot canvas.

void QwtPlotMagnifier::rescale (doublefactor) [protected, virtual] Zoom in/out the axes scales¶

Parameters: Implements QwtMagnifier.

void QwtPlotMagnifier::setAxisEnabled (intaxis, boolon)¶

En/Disable an axis. Only Axes that are enabled will be zoomed. All other axes will remain unchanged. Parameters: See also:

Author¶

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