.TH "QwtPlotMagnifier" 3 "Fri Apr 15 2011" "Version 6.0.0" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtPlotMagnifier \- 
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\fBQwtPlotMagnifier\fP provides zooming, by magnifying in steps.  

.SH SYNOPSIS
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\fC#include <qwt_plot_magnifier.h>\fP
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Inherits \fBQwtMagnifier\fP.
.SS "Public Member Functions"

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.RI "\fBQwtPlotMagnifier\fP (\fBQwtPlotCanvas\fP *)"
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.RI "virtual \fB~QwtPlotMagnifier\fP ()"
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.RI "void \fBsetAxisEnabled\fP (int axis, bool on)"
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.RI "bool \fBisAxisEnabled\fP (int axis) const "
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.RI "\fBQwtPlotCanvas\fP * \fBcanvas\fP ()"
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.RI "const \fBQwtPlotCanvas\fP * \fBcanvas\fP () const "
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.RI "\fBQwtPlot\fP * \fBplot\fP ()"
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.RI "const \fBQwtPlot\fP * \fBplot\fP () const "
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.SS "Protected Member Functions"

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.RI "virtual void \fBrescale\fP (double factor)"
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.SH "Detailed Description"
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\fBQwtPlotMagnifier\fP provides zooming, by magnifying in steps. 

Using \fBQwtPlotMagnifier\fP a plot can be zoomed in/out in steps using keys, the mouse wheel or moving a mouse button in vertical direction.
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Together with \fBQwtPlotZoomer\fP and \fBQwtPlotPanner\fP it is possible to implement individual and powerful navigation of the plot canvas.
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\fBSee also:\fP
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\fBQwtPlotZoomer\fP, \fBQwtPlotPanner\fP, \fBQwtPlot\fP 
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.SH "Constructor & Destructor Documentation"
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.SS "QwtPlotMagnifier::QwtPlotMagnifier (\fBQwtPlotCanvas\fP *canvas)\fC [explicit]\fP"Constructor 
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\fBParameters:\fP
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\fIcanvas\fP Plot canvas to be magnified 
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.SS "QwtPlotMagnifier::~QwtPlotMagnifier ()\fC [virtual]\fP"
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Destructor. 
.SH "Member Function Documentation"
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.SS "\fBQwtPlotCanvas\fP * QwtPlotMagnifier::canvas ()"
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Return observed plot canvas. 
.SS "const \fBQwtPlotCanvas\fP * QwtPlotMagnifier::canvas () const"
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Return Observed plot canvas. 
.SS "bool QwtPlotMagnifier::isAxisEnabled (intaxis) const"Test if an axis is enabled
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\fBParameters:\fP
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\fIaxis\fP Axis, see \fBQwtPlot::Axis\fP 
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\fBReturns:\fP
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True, if the axis is enabled
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\fBSee also:\fP
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\fBsetAxisEnabled()\fP 
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.SS "\fBQwtPlot\fP * QwtPlotMagnifier::plot ()"
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Return plot widget, containing the observed plot canvas. 
.SS "const \fBQwtPlot\fP * QwtPlotMagnifier::plot () const"
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Return plot widget, containing the observed plot canvas. 
.SS "void QwtPlotMagnifier::rescale (doublefactor)\fC [protected, virtual]\fP"Zoom in/out the axes scales 
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\fBParameters:\fP
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\fIfactor\fP A value < 1.0 zooms in, a value > 1.0 zooms out. 
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Implements \fBQwtMagnifier\fP.
.SS "void QwtPlotMagnifier::setAxisEnabled (intaxis, boolon)"
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En/Disable an axis. Only Axes that are enabled will be zoomed. All other axes will remain unchanged.
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\fBParameters:\fP
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\fIaxis\fP Axis, see \fBQwtPlot::Axis\fP 
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\fIon\fP On/Off
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\fBSee also:\fP
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\fBisAxisEnabled()\fP 
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.SH "Author"
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