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


QwtPlotMagnifier -


#include <qwt_plot_magnifier.h> Inherits QwtMagnifier. Public Member Functions QwtPlotMagnifier (QwtPlotCanvas *) virtual ~QwtPlotMagnifier () QwtPlotCanvas * canvas () const QwtPlotCanvas * canvas () const bool isAxisEnabled (int axis) const QwtPlot * plot () const QwtPlot * plot () const void setAxisEnabled (int axis, bool on) 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: QwtPlotZoomer, QwtPlotPanner, QwtPlot Constructor & Destructor Documentation QwtPlotMagnifier::QwtPlotMagnifier (QwtPlotCanvas *canvas) [explicit] Constructor Parameters: canvas Plot canvas to be magnified Member Function Documentation bool QwtPlotMagnifier::isAxisEnabled (intaxis) const Test if an axis is enabled Parameters: axis Axis, see QwtPlot::Axis Returns: True, if the axis is enabled See also: setAxisEnabled() void QwtPlotMagnifier::rescale (doublefactor) [protected], [virtual] Zoom in/out the axes scales Parameters: factor A value < 1.0 zooms in, a value > 1.0 zooms out. Implements QwtMagnifier. void QwtPlotMagnifier::setAxisEnabled (intaxis, boolon) En/Disable an axis. Axes that are enabled will be synchronized to the result of panning. All other axes will remain unchanged. Parameters: axis Axis, see QwtPlot::Axis on On/Off See also: isAxisEnabled() Author Generated automatically by Doxygen for Qwt User's Guide from the source code. Version 5.2.3 Tue Nov 20 2012 QwtPlotMagnifier(3)

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