Man page - qwtplotpanner(3)

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

QwtPlotPanner - QwtPlotPanner provides panning of a plot canvas.

#include <qwt_plot_panner.h>

Inherits QwtPanner.


QwtPlotPanner (QWidget *)
A panner for the canvas of a QwtPlot. virtual ~QwtPlotPanner ()
Destructor. 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. void setAxisEnabled (int axis, bool on)
En/Disable an axis. bool isAxisEnabled (int axis) const


virtual void moveCanvas (int dx, int dy)


virtual QBitmap contentsMask () const
virtual QPixmap grab () const

QwtPlotPanner provides panning of a plot canvas.

QwtPlotPanner is a panner for a plot canvas, that adjusts the scales of the axes after dropping the canvas on its new position.

Together with QwtPlotZoomer and QwtPlotMagnifier powerful ways of navigating on a QwtPlot widget can be implemented easily.

Note:

The axes are not updated, while dragging the canvas

See also:

QwtPlotZoomer, QwtPlotMagnifier

A panner for the canvas of a QwtPlot. The panner is enabled for all axes

Parameters:

canvas Plot canvas to pan, also the parent object

See also:

setAxisEnabled()

Calculate a mask from the border path of the canvas

Returns:

Mask as bitmap

See also:

QwtPlotCanvas::borderPath()

Reimplemented from QwtPanner.

Returns:

Pixmap with the content of the canvas

Reimplemented from QwtPanner.

Test if an axis is enabled

Parameters:

axis Axis, see QwtPlot::Axis

Returns:

True, if the axis is enabled

See also:

setAxisEnabled(), moveCanvas()

Adjust the enabled axes according to dx/dy

Parameters:

dx Pixel offset in x direction
dy Pixel offset in y direction

See also:

QwtPanner::panned()

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(), moveCanvas()

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Wed Jan 2 2019 Version 6.1.4