<map id="G" name="G">
<area shape="rect" id="node3" href="$class_qwt_picker.html" title="QwtPicker provides selections on a widget." alt="" coords="22,80,103,107"/>
<area shape="rect" id="node5" href="$class_qwt_plot_picker.html" title="QwtPlotPicker provides selections on a plot canvas." alt="" coords="11,155,113,181"/>
<area shape="rect" id="node7" href="$class_qwt_plot_zoomer.html" title="QwtPlotZoomer provides stacked zooming for a plot widget." alt="" coords="7,229,117,256"/>
</map>
