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<h1>QwtPlotRasterItem Class Reference</h1> </div>
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<!-- doxytag: class="QwtPlotRasterItem" --><!-- doxytag: inherits="QwtPlotItem" -->
<p>A class, which displays raster data.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="qwt__plot__rasteritem_8h_source.html">qwt_plot_rasteritem.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for QwtPlotRasterItem:</div>
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<div class="center"><img src="class_qwt_plot_raster_item__inherit__graph.png" border="0" usemap="#_qwt_plot_raster_item_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_plot_raster_item_inherit__map" id="_qwt_plot_raster_item_inherit__map">
<area shape="rect" id="node7" href="class_qwt_plot_spectrogram.html" title="A plot item, which displays a spectrogram." alt="" coords="16,237,157,267"/><area shape="rect" id="node2" href="class_qwt_plot_item.html" title="Base class for items on the plot canvas." alt="" coords="40,83,133,112"/><area shape="rect" id="node4" href="class_qwt_legend_item_manager.html" title="Abstract API to bind plot items to the legend." alt="" coords="5,5,168,35"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="class_qwt_plot_raster_item-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">CachePolicy</a> { <br/>
  <b>NoCache</b>,
<br/>
  <b>PaintCache</b>
<br/>
}</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a> { <br/>
  <a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176">Legend</a> = 0x01,
<br/>
  <a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48">AutoScale</a> = 0x02
<br/>
}</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef QFlags< <a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#af356dc13c7838c7437334e199a356764">ItemAttributes</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a> { <a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394eea77b139d4d7327465408fe06ec98dbc0d">PaintInDeviceResolution</a> = 1
}</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef QFlags< <a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a6bde441d571c4943da01765dec2d4b4a">PaintAttributes</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">RenderHint</a> { <a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704ae0c9811915d496eaacbd749724647f13">RenderAntialiased</a> = 1
}</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">typedef QFlags< <a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">RenderHint</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a40cf900701d3a68948b00316689616d1">RenderHints</a></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#ab149ac85e233ce9cedf2f2f2af871bf3">RttiValues</a> { <br/>
  <b>Rtti_PlotItem</b> = 0,
<br/>
  <b>Rtti_PlotGrid</b>,
<br/>
  <b>Rtti_PlotScale</b>,
<br/>
  <b>Rtti_PlotMarker</b>,
<br/>
  <b>Rtti_PlotCurve</b>,
<br/>
  <b>Rtti_PlotSpectroCurve</b>,
<br/>
  <b>Rtti_PlotIntervalCurve</b>,
<br/>
  <b>Rtti_PlotHistogram</b>,
<br/>
  <b>Rtti_PlotSpectrogram</b>,
<br/>
  <b>Rtti_PlotSVG</b>,
<br/>
  <b>Rtti_PlotUserItem</b> = 1000
<br/>
}</td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a96b2faa0bc0fe086bff1abe72bcb2016">alpha</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#aeb2f676533ccae3436bf578824e2165e">attach</a> (<a class="el" href="class_qwt_plot.html">QwtPlot</a> *plot)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QRectF </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#ad96073173caf80301e108a6d8b0648e9">boundingRect</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">CachePolicy</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#ac953db5d88084f416b4dbc3ca8a323f3">cachePolicy</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#ab2bbee6dbe36a5f1d0ce853ac66716a6">detach</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a2bb321c1ddc67b96a54a266ba27e6fe0">draw</a> (QPainter *p, const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &xMap, const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &yMap, const QRectF &rect) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_legend_item_manager.html#a8dd765a2fd5b9a286fa398810a5c2ad8">drawLegendIdentifier</a> (QPainter *, const QRectF &) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a1faea017baa2492416a13e6bc3c144aa">hide</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_qwt_interval.html">QwtInterval</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a0ffa377f71d05a0d3d077e040b08c357">interval</a> (Qt::Axis) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a547ce4d8d031b230226cfbd509ef65b5">invalidateCache</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#aeaf8eeb5f080017e181a5d7be798d789">isVisible</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QWidget * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a09824eda5e564a853e6586bc387a3b4b">legendItem</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QRectF </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#afa05b98fd7ea65ca1ffcb04bb6b4326d">paintRect</a> (const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &, const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QRectF </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a03a69bfe7d3d125ba4f580d1ecd5e2f4">pixelHint</a> (const QRectF &) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_plot.html">QwtPlot</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a4c99653a14a49ad94d466168d06e97b9">plot</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#af487c6abc8e95200d4537d1373f96be5">QwtPlotRasterItem</a> (const <a class="el" href="class_qwt_text.html">QwtText</a> &title)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a2149c1d6b71c607027345a9a51ef3314">QwtPlotRasterItem</a> (const QString &title=QString::null)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#af153b5a40a60ac626f1c58e69fc4ecad">rtti</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QRectF </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a186036cbee194b87b9bc4afb693c27f4">scaleRect</a> (const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &, const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a14f2ab8ec0994384e6269f869c352273">setAlpha</a> (int alpha)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a6f6c7b34fe86e8029914b3b780b55ea4">setAxes</a> (int xAxis, int yAxis)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a31f74199f7e333c2683b0f18289e4c7f">setCachePolicy</a> (<a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">CachePolicy</a>)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a> (<a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a>, bool on=true)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a70d6b94821e5eafb29b1f045d1f3a2e6">setPaintAttribute</a> (<a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a>, bool on=true)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#acd023c40f659c304ded324942865edc8">setRenderHint</a> (<a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">RenderHint</a>, bool on=true)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a2db3214b23b78274fa6f8c0321a76839">setTitle</a> (const <a class="el" href="class_qwt_text.html">QwtText</a> &title)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a1b74686181ab6dd5033917123c7db30f">setTitle</a> (const QString &title)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a5f0eeb2b72207fd8d33a95b0565657a1">setVisible</a> (bool)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a81d3dd7feaadda4b0dbb8c13642046cf">setXAxis</a> (int axis)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#aa92dad876d76ce136925d5ae8f01db9a">setYAxis</a> (int axis)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a57d90e4146133b59d589c71b3a643e82">setZ</a> (double z)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a93a50fb9c86bc66617e28315e02281c3">show</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#aef70936d34ef661876692e6a06d4a464">testItemAttribute</a> (<a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a>) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a17d8f350acf46d2ba7a68df977f80a52">testPaintAttribute</a> (<a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a>) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#ad4009381d6a26359125549e1cf874b69">testRenderHint</a> (<a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">RenderHint</a>) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_text.html">QwtText</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a3859d011b670b5f89e45d1ccef9206f7">title</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a193770cd20609a368c5130de59cb782e">updateLegend</a> (<a class="el" href="class_qwt_legend.html">QwtLegend</a> *) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#abf6a70847d3db952161ca4d4a952eea0">updateScaleDiv</a> (const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> &, const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> &)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a7af360bf6d5a5b6257ce6b0dd99b7525">xAxis</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#ac7714ffa278a10e0cf45972e487b63ff">yAxis</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_item.html#a4c58d814336643190b9f2918f80c30df">z</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a2715233827c346ab15504dc75d6e9714">~QwtPlotRasterItem</a> ()</td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a9feb834f9e40cdff11d8cd6ad74fda10">imageMap</a> (Qt::Orientation, const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &map, const QRectF &area, const QSize &imageSize, double pixelSize) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QImage </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74">renderImage</a> (const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &xMap, const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> &yMap, const QRectF &area, const QSize &imageSize) const =0</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A class, which displays raster data. </p>
<p>Raster data is a grid of pixel values, that can be represented as a QImage. It is used for many types of information like spectrograms, cartograms, geographical maps ...</p>
<p>Often a plot has several types of raster data organized in layers. ( f.e a geographical map, with weather statistics ). Using <a class="el" href="class_qwt_plot_raster_item.html#a14f2ab8ec0994384e6269f869c352273" title="Set an alpha value for the raster data.">setAlpha()</a> raster items can be stacked easily.</p>
<p><a class="el" href="class_qwt_plot_raster_item.html" title="A class, which displays raster data.">QwtPlotRasterItem</a> is only implemented for images of the following formats: QImage::Format_Indexed8, QImage::Format_ARGB32.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_spectrogram.html" title="A plot item, which displays a spectrogram.">QwtPlotSpectrogram</a> </dd></dl>
</div><hr/><h2>Member Typedef Documentation</h2>
<a class="anchor" id="af356dc13c7838c7437334e199a356764"></a><!-- doxytag: member="QwtPlotRasterItem::ItemAttributes" ref="af356dc13c7838c7437334e199a356764" args="" -->
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<td class="memname">typedef QFlags<<a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a>> <a class="el" href="class_qwt_plot_item.html#af356dc13c7838c7437334e199a356764">QwtPlotItem::ItemAttributes</a><code> [inherited]</code></td>
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<p>Plot Item Attributes. </p>
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<a class="anchor" id="a6bde441d571c4943da01765dec2d4b4a"></a><!-- doxytag: member="QwtPlotRasterItem::PaintAttributes" ref="a6bde441d571c4943da01765dec2d4b4a" args="" -->
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<td class="memname">typedef QFlags<<a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a>> <a class="el" href="class_qwt_plot_raster_item.html#a6bde441d571c4943da01765dec2d4b4a">QwtPlotRasterItem::PaintAttributes</a></td>
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<p>Paint attributes. </p>
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<a class="anchor" id="a40cf900701d3a68948b00316689616d1"></a><!-- doxytag: member="QwtPlotRasterItem::RenderHints" ref="a40cf900701d3a68948b00316689616d1" args="" -->
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<td class="memname">typedef QFlags<<a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">RenderHint</a>> <a class="el" href="class_qwt_plot_item.html#a40cf900701d3a68948b00316689616d1">QwtPlotItem::RenderHints</a><code> [inherited]</code></td>
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<p>Render hints. </p>
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<hr/><h2>Member Enumeration Documentation</h2>
<a class="anchor" id="a94929fc4c31c3dab75ee5adcac2d57b0"></a><!-- doxytag: member="QwtPlotRasterItem::CachePolicy" ref="a94929fc4c31c3dab75ee5adcac2d57b0" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a></td>
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<ul>
<li>NoCache<br/>
<a class="el" href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74" title="Render an image.">renderImage()</a> is called, whenever the item has to be repainted</li>
<li>PaintCache<br/>
<a class="el" href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74" title="Render an image.">renderImage()</a> is called, whenever the image cache is not valid, or the scales, or the size of the canvas has changed. This type of cache is only useful for improving the performance of hide/show operations. All other situations are already handled by the plot canvas cache.</li>
</ul>
<p>The default policy is NoCache </p>
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<td class="memname">enum <a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">QwtPlotItem::ItemAttribute</a><code> [inherited]</code></td>
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<p>Plot Item Attributes </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute()</a>, <a class="el" href="class_qwt_plot_item.html#aef70936d34ef661876692e6a06d4a464">testItemAttribute()</a> </dd></dl>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176"></a><!-- doxytag: member="Legend" ref="ae0fabcdd35f4818ce5bbe019b0eed062a4e377b54bd879c60a95162b6a9e9e176" args="" -->Legend</em> </td><td>
<p>The item is represented on the legend. </p>
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<tr><td valign="top"><em><a class="anchor" id="ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48"></a><!-- doxytag: member="AutoScale" ref="ae0fabcdd35f4818ce5bbe019b0eed062a9de83e2ad8a88796a36a11ef8b033a48" args="" -->AutoScale</em> </td><td>
<p>The <a class="el" href="class_qwt_plot_item.html#aec3c408e14af30b82b52c1197310eb21">boundingRect()</a> of the item is included in the autoscaling calculation. </p>
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<a class="anchor" id="a75ac68ea258b8612e8a1893e845394ee"></a><!-- doxytag: member="QwtPlotRasterItem::PaintAttribute" ref="a75ac68ea258b8612e8a1893e845394ee" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">QwtPlotRasterItem::PaintAttribute</a></td>
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<p>Attributes to modify the drawing algorithm. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a70d6b94821e5eafb29b1f045d1f3a2e6">setPaintAttribute()</a>, <a class="el" href="class_qwt_plot_raster_item.html#a17d8f350acf46d2ba7a68df977f80a52" title="Return the current paint attributes.">testPaintAttribute()</a> </dd></dl>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="a75ac68ea258b8612e8a1893e845394eea77b139d4d7327465408fe06ec98dbc0d"></a><!-- doxytag: member="PaintInDeviceResolution" ref="a75ac68ea258b8612e8a1893e845394eea77b139d4d7327465408fe06ec98dbc0d" args="" -->PaintInDeviceResolution</em> </td><td>
<p>When the image is rendered according to the data pixels ( <a class="el" href="class_qwt_raster_data.html#ad1ce58351804760d1ba1e7efe97d39d6" title="Pixel hint.">QwtRasterData::pixelHint()</a> ) it can be expanded to paint device resolution before it is passed to QPainter. The expansion algorithm rounds the pixel borders in the same way as the axis ticks, what is usually better than the scaling algorithm implemented in Qt. Disabling this flag might make sense, to reduce the size of a document/file. If this is possible for a document format depends on the implementation of the specific QPaintEngine. </p>
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<a class="anchor" id="abe0e8a39aceef9a600b73e02550a9704"></a><!-- doxytag: member="QwtPlotRasterItem::RenderHint" ref="abe0e8a39aceef9a600b73e02550a9704" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">QwtPlotItem::RenderHint</a><code> [inherited]</code></td>
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<p>Render hints. </p>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="abe0e8a39aceef9a600b73e02550a9704ae0c9811915d496eaacbd749724647f13"></a><!-- doxytag: member="RenderAntialiased" ref="abe0e8a39aceef9a600b73e02550a9704ae0c9811915d496eaacbd749724647f13" args="" -->RenderAntialiased</em> </td><td>
<p>Enable antialiasing. </p>
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<a class="anchor" id="ab149ac85e233ce9cedf2f2f2af871bf3"></a><!-- doxytag: member="QwtPlotRasterItem::RttiValues" ref="ab149ac85e233ce9cedf2f2f2af871bf3" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_plot_item.html#ab149ac85e233ce9cedf2f2f2af871bf3">QwtPlotItem::RttiValues</a><code> [inherited]</code></td>
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<p>Runtime type information. </p>
<p>RttiValues is used to cast plot items, without having to enable runtime type information of the compiler. </p>
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<hr/><h2>Constructor & Destructor Documentation</h2>
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<td class="paramtype">const QString & </td>
<td class="paramname"><em>title</em> = <code>QString::null</code></td><td>)</td>
<td><code> [explicit]</code></td>
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<p>Constructor. </p>
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<a class="anchor" id="af487c6abc8e95200d4537d1373f96be5"></a><!-- doxytag: member="QwtPlotRasterItem::QwtPlotRasterItem" ref="af487c6abc8e95200d4537d1373f96be5" args="(const QwtText &title)" -->
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<td class="memname">QwtPlotRasterItem::QwtPlotRasterItem </td>
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<td class="paramtype">const <a class="el" href="class_qwt_text.html">QwtText</a> & </td>
<td class="paramname"><em>title</em></td><td>)</td>
<td><code> [explicit]</code></td>
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<p>Constructor. </p>
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<a class="anchor" id="a2715233827c346ab15504dc75d6e9714"></a><!-- doxytag: member="QwtPlotRasterItem::~QwtPlotRasterItem" ref="a2715233827c346ab15504dc75d6e9714" args="()" -->
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<td class="paramname"></td><td>)</td>
<td><code> [virtual]</code></td>
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<p>Destructor. </p>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a96b2faa0bc0fe086bff1abe72bcb2016"></a><!-- doxytag: member="QwtPlotRasterItem::alpha" ref="a96b2faa0bc0fe086bff1abe72bcb2016" args="() const " -->
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<td class="memname">int QwtPlotRasterItem::alpha </td>
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<td> const</td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Alpha value of the raster item </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a14f2ab8ec0994384e6269f869c352273" title="Set an alpha value for the raster data.">setAlpha()</a> </dd></dl>
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<a class="anchor" id="aeb2f676533ccae3436bf578824e2165e"></a><!-- doxytag: member="QwtPlotRasterItem::attach" ref="aeb2f676533ccae3436bf578824e2165e" args="(QwtPlot *plot)" -->
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<td class="memname">void QwtPlotItem::attach </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot.html">QwtPlot</a> * </td>
<td class="paramname"><em>plot</em></td><td>)</td>
<td><code> [inherited]</code></td>
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<p>Attach the item to a plot. </p>
<p>This method will attach a <a class="el" href="class_qwt_plot_item.html" title="Base class for items on the plot canvas.">QwtPlotItem</a> to the <a class="el" href="class_qwt_plot.html" title="A 2-D plotting widget.">QwtPlot</a> argument. It will first detach the <a class="el" href="class_qwt_plot_item.html" title="Base class for items on the plot canvas.">QwtPlotItem</a> from any plot from a previous call to attach (if necessary). If a NULL argument is passed, it will detach from any <a class="el" href="class_qwt_plot.html" title="A 2-D plotting widget.">QwtPlot</a> it was attached to.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">plot</td><td>Plot widget </td></tr>
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</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#ab2bbee6dbe36a5f1d0ce853ac66716a6" title="This method detaches a QwtPlotItem from any QwtPlot it has been associated with.">detach()</a> </dd></dl>
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<a class="anchor" id="ad96073173caf80301e108a6d8b0648e9"></a><!-- doxytag: member="QwtPlotRasterItem::boundingRect" ref="ad96073173caf80301e108a6d8b0648e9" args="() const " -->
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<td class="memname">QRectF QwtPlotRasterItem::boundingRect </td>
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<td> const<code> [virtual]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Bounding rect of the data </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a0ffa377f71d05a0d3d077e040b08c357">QwtPlotRasterItem::interval()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="class_qwt_plot_item.html#aec3c408e14af30b82b52c1197310eb21">QwtPlotItem</a>.</p>
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<a class="anchor" id="ac953db5d88084f416b4dbc3ca8a323f3"></a><!-- doxytag: member="QwtPlotRasterItem::cachePolicy" ref="ac953db5d88084f416b4dbc3ca8a323f3" args="() const " -->
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<td class="memname"><a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a> QwtPlotRasterItem::cachePolicy </td>
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<td> const</td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Cache policy </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">CachePolicy</a>, <a class="el" href="class_qwt_plot_raster_item.html#a31f74199f7e333c2683b0f18289e4c7f">setCachePolicy()</a> </dd></dl>
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<td class="memname">void QwtPlotItem::detach </td>
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<td><code> [inherited]</code></td>
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<p>This method detaches a <a class="el" href="class_qwt_plot_item.html" title="Base class for items on the plot canvas.">QwtPlotItem</a> from any <a class="el" href="class_qwt_plot.html" title="A 2-D plotting widget.">QwtPlot</a> it has been associated with. </p>
<p><a class="el" href="class_qwt_plot_item.html#ab2bbee6dbe36a5f1d0ce853ac66716a6" title="This method detaches a QwtPlotItem from any QwtPlot it has been associated with.">detach()</a> is equivalent to calling attach( NULL ) </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#aeb2f676533ccae3436bf578824e2165e" title="Attach the item to a plot.">attach()</a> </dd></dl>
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<a class="anchor" id="a2bb321c1ddc67b96a54a266ba27e6fe0"></a><!-- doxytag: member="QwtPlotRasterItem::draw" ref="a2bb321c1ddc67b96a54a266ba27e6fe0" args="(QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &rect) const " -->
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<td class="memname">void QwtPlotRasterItem::draw </td>
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<td class="paramtype">QPainter * </td>
<td class="paramname"><em>painter</em>, </td>
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<td class="paramkey"></td>
<td></td>
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<td class="paramname"><em>xMap</em>, </td>
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<td class="paramkey"></td>
<td></td>
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<td class="paramname"><em>yMap</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const QRectF & </td>
<td class="paramname"><em>canvasRect</em> </td>
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<p>Draw the raster data. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">painter</td><td>Painter </td></tr>
<tr><td class="paramname">xMap</td><td>X-Scale Map </td></tr>
<tr><td class="paramname">yMap</td><td>Y-Scale Map </td></tr>
<tr><td class="paramname">canvasRect</td><td>Contents rect of the plot canvas </td></tr>
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</dd>
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<p>Implements <a class="el" href="class_qwt_plot_item.html#a0b0d6589d5db81ce72e6b33c4fbb21f9">QwtPlotItem</a>.</p>
<p>Reimplemented in <a class="el" href="class_qwt_plot_spectrogram.html#a92bafff167caeef9e1e4a6e652c0c5d4">QwtPlotSpectrogram</a>.</p>
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<a class="anchor" id="a8dd765a2fd5b9a286fa398810a5c2ad8"></a><!-- doxytag: member="QwtPlotRasterItem::drawLegendIdentifier" ref="a8dd765a2fd5b9a286fa398810a5c2ad8" args="(QPainter *, const QRectF &) const " -->
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<td class="memname">virtual void QwtLegendItemManager::drawLegendIdentifier </td>
<td>(</td>
<td class="paramtype">QPainter * </td>
<td class="paramname">, </td>
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<td></td>
<td class="paramtype">const QRectF & </td>
<td class="paramname"> </td>
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<td>)</td>
<td></td><td> const<code> [inline, virtual, inherited]</code></td>
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<p><a class="el" href="class_qwt_legend_item.html" title="A widget representing something on a QwtLegend().">QwtLegendItem</a> can display an icon-identifier followed by a text. The icon helps to identify a plot item on the plot canvas and depends on the type of information, that is displayed.</p>
<p>The default implementation paints nothing. </p>
<p>Reimplemented in <a class="el" href="class_qwt_plot_curve.html#a8e9518a3e9f64e1d024a7f4550335df0">QwtPlotCurve</a>, <a class="el" href="class_qwt_plot_histogram.html#a8bf6410cab08923d02e7167321b3c926">QwtPlotHistogram</a>, <a class="el" href="class_qwt_plot_interval_curve.html#a3cd73ea413b99647d8e3e9d8dc322431">QwtPlotIntervalCurve</a>, and <a class="el" href="class_qwt_plot_marker.html#ae99020d14c8ec4567ed94cdeb805fea1">QwtPlotMarker</a>.</p>
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<td class="memname">void QwtPlotItem::hide </td>
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<td><code> [inherited]</code></td>
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<p>Hide the item. </p>
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<a class="anchor" id="a9feb834f9e40cdff11d8cd6ad74fda10"></a><!-- doxytag: member="QwtPlotRasterItem::imageMap" ref="a9feb834f9e40cdff11d8cd6ad74fda10" args="(Qt::Orientation, const QwtScaleMap &map, const QRectF &area, const QSize &imageSize, double pixelSize) const " -->
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<td class="memname"><a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> QwtPlotRasterItem::imageMap </td>
<td>(</td>
<td class="paramtype">Qt::Orientation </td>
<td class="paramname"><em>orientation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td>
<td class="paramname"><em>map</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QRectF & </td>
<td class="paramname"><em>area</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QSize & </td>
<td class="paramname"><em>imageSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>pixelSize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [protected, virtual]</code></td>
</tr>
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<p>Calculate a scale map for painting to an image. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">orientation</td><td>Orientation, Qt::Horizontal means a X axis </td></tr>
<tr><td class="paramname">map</td><td>Scale map for rendering the plot item </td></tr>
<tr><td class="paramname">area</td><td>Area to be painted on the image </td></tr>
<tr><td class="paramname">imageSize</td><td>Image size </td></tr>
<tr><td class="paramname">pixelSize</td><td>Width/Height of a data pixel </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a0ffa377f71d05a0d3d077e040b08c357"></a><!-- doxytag: member="QwtPlotRasterItem::interval" ref="a0ffa377f71d05a0d3d077e040b08c357" args="(Qt::Axis) const " -->
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<td class="memname"><a class="el" href="class_qwt_interval.html">QwtInterval</a> QwtPlotRasterItem::interval </td>
<td>(</td>
<td class="paramtype">Qt::Axis </td>
<td class="paramname"><em>axis</em></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Bounding interval for an axis</dd></dl>
<p>This method is intended to be reimplemented by derived classes. The default implementation returns an invalid interval.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">axis</td><td>X, Y, or Z axis </td></tr>
</table>
</dd>
</dl>
<p>Reimplemented in <a class="el" href="class_qwt_plot_spectrogram.html#a958a45464b5946aff31b7d28b7cfb5f9">QwtPlotSpectrogram</a>.</p>
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<a class="anchor" id="a547ce4d8d031b230226cfbd509ef65b5"></a><!-- doxytag: member="QwtPlotRasterItem::invalidateCache" ref="a547ce4d8d031b230226cfbd509ef65b5" args="()" -->
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<td class="memname">void QwtPlotRasterItem::invalidateCache </td>
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<p>Invalidate the paint cache </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a31f74199f7e333c2683b0f18289e4c7f">setCachePolicy()</a> </dd></dl>
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<td class="memname">bool QwtPlotItem::isVisible </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>true if visible </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a5f0eeb2b72207fd8d33a95b0565657a1">setVisible()</a>, <a class="el" href="class_qwt_plot_item.html#a93a50fb9c86bc66617e28315e02281c3" title="Show the item.">show()</a>, <a class="el" href="class_qwt_plot_item.html#a1faea017baa2492416a13e6bc3c144aa" title="Hide the item.">hide()</a> </dd></dl>
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<a class="anchor" id="ad956fdbce5b0721abccce6d09fe4d5ce"></a><!-- doxytag: member="QwtPlotRasterItem::itemChanged" ref="ad956fdbce5b0721abccce6d09fe4d5ce" args="()" -->
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<td class="memname">void QwtPlotItem::itemChanged </td>
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<td><code> [virtual, inherited]</code></td>
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<p>Update the legend and call <a class="el" href="class_qwt_plot.html#aea78ab565d05b69b8730a4af2a11f07e" title="Replots the plot if autoReplot() is true.">QwtPlot::autoRefresh</a> for the parent plot.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a193770cd20609a368c5130de59cb782e" title="Update the widget that represents the item on the legend.">updateLegend()</a> </dd></dl>
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<a class="anchor" id="a09824eda5e564a853e6586bc387a3b4b"></a><!-- doxytag: member="QwtPlotRasterItem::legendItem" ref="a09824eda5e564a853e6586bc387a3b4b" args="() const " -->
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<td class="memname">QWidget * QwtPlotItem::legendItem </td>
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<td> const<code> [virtual, inherited]</code></td>
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<p>Allocate the widget that represents the item on the legend. </p>
<p>The default implementation returns a QwtLegendItem(), but an item could be represented by any type of widget, by overloading <a class="el" href="class_qwt_plot_item.html#a09824eda5e564a853e6586bc387a3b4b" title="Allocate the widget that represents the item on the legend.">legendItem()</a> and <a class="el" href="class_qwt_plot_item.html#a193770cd20609a368c5130de59cb782e" title="Update the widget that represents the item on the legend.">updateLegend()</a>.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>QwtLegendItem() </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a193770cd20609a368c5130de59cb782e" title="Update the widget that represents the item on the legend.">updateLegend()</a> QwtLegend() </dd></dl>
<p>Implements <a class="el" href="class_qwt_legend_item_manager.html#ac019b92797940db3cec2246a080598e0">QwtLegendItemManager</a>.</p>
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<a class="anchor" id="afa05b98fd7ea65ca1ffcb04bb6b4326d"></a><!-- doxytag: member="QwtPlotRasterItem::paintRect" ref="afa05b98fd7ea65ca1ffcb04bb6b4326d" args="(const QwtScaleMap &, const QwtScaleMap &) const " -->
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<td class="memname">QRectF QwtPlotItem::paintRect </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td>
<td class="paramname"><em>xMap</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td>
<td class="paramname"><em>yMap</em> </td>
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<td>)</td>
<td></td><td> const<code> [inherited]</code></td>
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<p>Calculate the bounding paint rect of 2 maps. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">xMap</td><td>X map </td></tr>
<tr><td class="paramname">yMap</td><td>X map</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Bounding paint rect of the scale maps, normalized </dd></dl>
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<a class="anchor" id="a03a69bfe7d3d125ba4f580d1ecd5e2f4"></a><!-- doxytag: member="QwtPlotRasterItem::pixelHint" ref="a03a69bfe7d3d125ba4f580d1ecd5e2f4" args="(const QRectF &) const " -->
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<td class="memname">QRectF QwtPlotRasterItem::pixelHint </td>
<td>(</td>
<td class="paramtype">const QRectF & </td>
<td class="paramname"><em>area</em></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<p>Pixel hint. </p>
<p>The geometry of a pixel is used to calculated the resolution and alignment of the rendered image.</p>
<p>Width and height of the hint need to be the horizontal and vertical distances between 2 neighboured points. The center of the hint has to be the position of any point ( it doesn't matter which one ).</p>
<p>Limiting the resolution of the image might significantly improve the performance and heavily reduce the amount of memory when rendering a QImage from the raster data.</p>
<p>The default implementation returns an empty rectangle (QRectF()), meaning, that the image will be rendered in target device ( f.e screen ) resolution.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">area</td><td>In most implementations the resolution of the data doesn't depend on the requested area.</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Bounding rectangle of a pixel</dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd>render(), <a class="el" href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74" title="Render an image.">renderImage()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_plot_spectrogram.html#a9b06ef6a2526da8715615d07fdb31a95">QwtPlotSpectrogram</a>.</p>
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<a class="anchor" id="a4c99653a14a49ad94d466168d06e97b9"></a><!-- doxytag: member="QwtPlotRasterItem::plot" ref="a4c99653a14a49ad94d466168d06e97b9" args="() const " -->
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<td class="memname"><a class="el" href="class_qwt_plot.html">QwtPlot</a> * QwtPlotItem::plot </td>
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<td> const<code> [inherited]</code></td>
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<p>Return attached plot. </p>
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<a class="anchor" id="a1738b36c0e6e4073f3ad6629e7923f74"></a><!-- doxytag: member="QwtPlotRasterItem::renderImage" ref="a1738b36c0e6e4073f3ad6629e7923f74" args="(const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &area, const QSize &imageSize) const =0" -->
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<td class="memname">virtual QImage QwtPlotRasterItem::renderImage </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td>
<td class="paramname"><em>xMap</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td>
<td class="paramname"><em>yMap</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QRectF & </td>
<td class="paramname"><em>area</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QSize & </td>
<td class="paramname"><em>imageSize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [protected, pure virtual]</code></td>
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<p>Render an image. </p>
<p>An implementation of render() might iterate over all pixels of imageRect. Each pixel has to be translated into the corresponding position in scale coordinates using the maps. This position can be used to look up a value in a implementation specific way and to map it into a color.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">xMap</td><td>X-Scale Map </td></tr>
<tr><td class="paramname">yMap</td><td>Y-Scale Map </td></tr>
<tr><td class="paramname">area</td><td>Requested area for the image in scale coordinates </td></tr>
<tr><td class="paramname">imageSize</td><td>Requested size of the image </td></tr>
</table>
</dd>
</dl>
<p>Implemented in <a class="el" href="class_qwt_plot_spectrogram.html#a99fa9694347e6f06240538af88385ca6">QwtPlotSpectrogram</a>.</p>
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<a class="anchor" id="af153b5a40a60ac626f1c58e69fc4ecad"></a><!-- doxytag: member="QwtPlotRasterItem::rtti" ref="af153b5a40a60ac626f1c58e69fc4ecad" args="() const " -->
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<td class="memname">int QwtPlotItem::rtti </td>
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<p>Return rtti for the specific class represented. <a class="el" href="class_qwt_plot_item.html" title="Base class for items on the plot canvas.">QwtPlotItem</a> is simply a virtual interface class, and base classes will implement this method with specific rtti values so a user can differentiate them.</p>
<p>The rtti value is useful for environments, where the runtime type information is disabled and it is not possible to do a dynamic_cast<...>.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>rtti value </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#ab149ac85e233ce9cedf2f2f2af871bf3" title="Runtime type information.">RttiValues</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_plot_curve.html#a1cb75062e781f4e0839a6cd2081c3928">QwtPlotCurve</a>, <a class="el" href="class_qwt_plot_grid.html#aae0d0b5afbc670dd257302b13601ea99">QwtPlotGrid</a>, <a class="el" href="class_qwt_plot_histogram.html#a7a927d6ad8544cf5d46e629a03a5a8f1">QwtPlotHistogram</a>, <a class="el" href="class_qwt_plot_interval_curve.html#a59e7b26fc91dd3c7c2412b5fd8d4ca9f">QwtPlotIntervalCurve</a>, <a class="el" href="class_qwt_plot_marker.html#a4e48032adf8bdda1aacba4977280123f">QwtPlotMarker</a>, <a class="el" href="class_qwt_plot_scale_item.html#a72d7c46ade62f45f3dffa93931900d74">QwtPlotScaleItem</a>, <a class="el" href="class_qwt_plot_spectro_curve.html#a5e866a7b7c024d26329814745ca2379c">QwtPlotSpectroCurve</a>, <a class="el" href="class_qwt_plot_spectrogram.html#a01197466f530633759337bbb7b8f7504">QwtPlotSpectrogram</a>, and <a class="el" href="class_qwt_plot_svg_item.html#a4331deca8a2ecdd6a7ebe1be7de22969">QwtPlotSvgItem</a>.</p>
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<a class="anchor" id="a186036cbee194b87b9bc4afb693c27f4"></a><!-- doxytag: member="QwtPlotRasterItem::scaleRect" ref="a186036cbee194b87b9bc4afb693c27f4" args="(const QwtScaleMap &, const QwtScaleMap &) const " -->
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<td class="memname">QRectF QwtPlotItem::scaleRect </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td>
<td class="paramname"><em>xMap</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td>
<td class="paramname"><em>yMap</em> </td>
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<td>)</td>
<td></td><td> const<code> [inherited]</code></td>
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<p>Calculate the bounding scale rect of 2 maps. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">xMap</td><td>X map </td></tr>
<tr><td class="paramname">yMap</td><td>X map</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Bounding scale rect of the scale maps, normalized </dd></dl>
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<a class="anchor" id="a14f2ab8ec0994384e6269f869c352273"></a><!-- doxytag: member="QwtPlotRasterItem::setAlpha" ref="a14f2ab8ec0994384e6269f869c352273" args="(int alpha)" -->
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<td class="memname">void QwtPlotRasterItem::setAlpha </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>alpha</em></td><td>)</td>
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<p>Set an alpha value for the raster data. </p>
<p>Often a plot has several types of raster data organized in layers. ( f.e a geographical map, with weather statistics ). Using <a class="el" href="class_qwt_plot_raster_item.html#a14f2ab8ec0994384e6269f869c352273" title="Set an alpha value for the raster data.">setAlpha()</a> raster items can be stacked easily.</p>
<p>The alpha value is a value [0, 255] to control the transparency of the image. 0 represents a fully transparent color, while 255 represents a fully opaque color.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">alpha</td><td>Alpha value</td></tr>
</table>
</dd>
</dl>
<ul>
<li>alpha >= 0<br/>
All alpha values of the pixels returned by <a class="el" href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74" title="Render an image.">renderImage()</a> will be set to alpha, beside those with an alpha value of 0 (invalid pixels).</li>
<li>alpha < 0 The alpha values returned by <a class="el" href="class_qwt_plot_raster_item.html#a1738b36c0e6e4073f3ad6629e7923f74" title="Render an image.">renderImage()</a> are not changed.</li>
</ul>
<p>The default alpha value is -1.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a96b2faa0bc0fe086bff1abe72bcb2016">alpha()</a> </dd></dl>
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<a class="anchor" id="a6f6c7b34fe86e8029914b3b780b55ea4"></a><!-- doxytag: member="QwtPlotRasterItem::setAxes" ref="a6f6c7b34fe86e8029914b3b780b55ea4" args="(int xAxis, int yAxis)" -->
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<td class="memname">void QwtPlotItem::setAxes </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>xAxis</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>yAxis</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
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<p>Set X and Y axis</p>
<p>The item will painted according to the coordinates its Axes.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">xAxis</td><td>X Axis </td></tr>
<tr><td class="paramname">yAxis</td><td>Y Axis</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a81d3dd7feaadda4b0dbb8c13642046cf">setXAxis()</a>, <a class="el" href="class_qwt_plot_item.html#aa92dad876d76ce136925d5ae8f01db9a">setYAxis()</a>, <a class="el" href="class_qwt_plot_item.html#a7af360bf6d5a5b6257ce6b0dd99b7525" title="Return xAxis.">xAxis()</a>, <a class="el" href="class_qwt_plot_item.html#ac7714ffa278a10e0cf45972e487b63ff" title="Return yAxis.">yAxis()</a> </dd></dl>
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<a class="anchor" id="a31f74199f7e333c2683b0f18289e4c7f"></a><!-- doxytag: member="QwtPlotRasterItem::setCachePolicy" ref="a31f74199f7e333c2683b0f18289e4c7f" args="(CachePolicy)" -->
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<td class="memname">void QwtPlotRasterItem::setCachePolicy </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">QwtPlotRasterItem::CachePolicy</a> </td>
<td class="paramname"><em>policy</em></td><td>)</td>
<td></td>
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<p>Change the cache policy</p>
<p>The default policy is NoCache</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">policy</td><td>Cache policy </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a94929fc4c31c3dab75ee5adcac2d57b0">CachePolicy</a>, <a class="el" href="class_qwt_plot_raster_item.html#ac953db5d88084f416b4dbc3ca8a323f3">cachePolicy()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a5a335be8ff488809a2cf7f4b734ad1b6"></a><!-- doxytag: member="QwtPlotRasterItem::setItemAttribute" ref="a5a335be8ff488809a2cf7f4b734ad1b6" args="(ItemAttribute, bool on=true)" -->
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<td class="memname">void QwtPlotItem::setItemAttribute </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a> </td>
<td class="paramname"><em>attribute</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>on</em> = <code>true</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Toggle an item attribute</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">attribute</td><td>Attribute type </td></tr>
<tr><td class="paramname">on</td><td>true/false</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#aef70936d34ef661876692e6a06d4a464">testItemAttribute()</a>, <a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a70d6b94821e5eafb29b1f045d1f3a2e6"></a><!-- doxytag: member="QwtPlotRasterItem::setPaintAttribute" ref="a70d6b94821e5eafb29b1f045d1f3a2e6" args="(PaintAttribute, bool on=true)" -->
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<td class="memname">void QwtPlotRasterItem::setPaintAttribute </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a> </td>
<td class="paramname"><em>attribute</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>on</em> = <code>true</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Specify an attribute how to draw the raster item</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">attribute</td><td>Paint attribute </td></tr>
<tr><td class="paramname">on</td><td>On/Off /sa PaintAttribute, <a class="el" href="class_qwt_plot_raster_item.html#a17d8f350acf46d2ba7a68df977f80a52" title="Return the current paint attributes.">testPaintAttribute()</a> </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="acd023c40f659c304ded324942865edc8"></a><!-- doxytag: member="QwtPlotRasterItem::setRenderHint" ref="acd023c40f659c304ded324942865edc8" args="(RenderHint, bool on=true)" -->
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<td class="memname">void QwtPlotItem::setRenderHint </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">RenderHint</a> </td>
<td class="paramname"><em>hint</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>on</em> = <code>true</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Toggle an render hint</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">hint</td><td>Render hint </td></tr>
<tr><td class="paramname">on</td><td>true/false</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#ad4009381d6a26359125549e1cf874b69">testRenderHint()</a>, <a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704" title="Render hints.">RenderHint</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a1b74686181ab6dd5033917123c7db30f"></a><!-- doxytag: member="QwtPlotRasterItem::setTitle" ref="a1b74686181ab6dd5033917123c7db30f" args="(const QString &title)" -->
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<td class="memname">void QwtPlotItem::setTitle </td>
<td>(</td>
<td class="paramtype">const QString & </td>
<td class="paramname"><em>title</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set a new title</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">title</td><td>Title </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a3859d011b670b5f89e45d1ccef9206f7">title()</a> </dd></dl>
</div>
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<a class="anchor" id="a2db3214b23b78274fa6f8c0321a76839"></a><!-- doxytag: member="QwtPlotRasterItem::setTitle" ref="a2db3214b23b78274fa6f8c0321a76839" args="(const QwtText &title)" -->
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<td class="memname">void QwtPlotItem::setTitle </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_text.html">QwtText</a> & </td>
<td class="paramname"><em>title</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set a new title</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">title</td><td>Title </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a3859d011b670b5f89e45d1ccef9206f7">title()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a5f0eeb2b72207fd8d33a95b0565657a1"></a><!-- doxytag: member="QwtPlotRasterItem::setVisible" ref="a5f0eeb2b72207fd8d33a95b0565657a1" args="(bool)" -->
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<td class="memname">void QwtPlotItem::setVisible </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>on</em></td><td>)</td>
<td><code> [virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Show/Hide the item</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">on</td><td>Show if true, otherwise hide </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#aeaf8eeb5f080017e181a5d7be798d789">isVisible()</a>, <a class="el" href="class_qwt_plot_item.html#a93a50fb9c86bc66617e28315e02281c3" title="Show the item.">show()</a>, <a class="el" href="class_qwt_plot_item.html#a1faea017baa2492416a13e6bc3c144aa" title="Hide the item.">hide()</a> </dd></dl>
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<a class="anchor" id="a81d3dd7feaadda4b0dbb8c13642046cf"></a><!-- doxytag: member="QwtPlotRasterItem::setXAxis" ref="a81d3dd7feaadda4b0dbb8c13642046cf" args="(int axis)" -->
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<td class="memname">void QwtPlotItem::setXAxis </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>axis</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set the X axis</p>
<p>The item will painted according to the coordinates its Axes.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">axis</td><td>X Axis </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a6f6c7b34fe86e8029914b3b780b55ea4">setAxes()</a>, <a class="el" href="class_qwt_plot_item.html#aa92dad876d76ce136925d5ae8f01db9a">setYAxis()</a>, <a class="el" href="class_qwt_plot_item.html#a7af360bf6d5a5b6257ce6b0dd99b7525" title="Return xAxis.">xAxis()</a> </dd></dl>
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<a class="anchor" id="aa92dad876d76ce136925d5ae8f01db9a"></a><!-- doxytag: member="QwtPlotRasterItem::setYAxis" ref="aa92dad876d76ce136925d5ae8f01db9a" args="(int axis)" -->
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<td class="memname">void QwtPlotItem::setYAxis </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>axis</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set the Y axis</p>
<p>The item will painted according to the coordinates its Axes.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">axis</td><td>Y Axis </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a6f6c7b34fe86e8029914b3b780b55ea4">setAxes()</a>, <a class="el" href="class_qwt_plot_item.html#a81d3dd7feaadda4b0dbb8c13642046cf">setXAxis()</a>, <a class="el" href="class_qwt_plot_item.html#ac7714ffa278a10e0cf45972e487b63ff" title="Return yAxis.">yAxis()</a> </dd></dl>
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<a class="anchor" id="a57d90e4146133b59d589c71b3a643e82"></a><!-- doxytag: member="QwtPlotRasterItem::setZ" ref="a57d90e4146133b59d589c71b3a643e82" args="(double z)" -->
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<td class="memname">void QwtPlotItem::setZ </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>z</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set the z value. </p>
<p>Plot items are painted in increasing z-order.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">z</td><td>Z-value </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a4c58d814336643190b9f2918f80c30df">z()</a>, <a class="el" href="class_qwt_plot_dict.html#a9cbb1c5c22de93594b7e2524af108f55" title="A QwtPlotItemList of all attached plot items.">QwtPlotDict::itemList()</a> </dd></dl>
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<a class="anchor" id="a93a50fb9c86bc66617e28315e02281c3"></a><!-- doxytag: member="QwtPlotRasterItem::show" ref="a93a50fb9c86bc66617e28315e02281c3" args="()" -->
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<td class="memname">void QwtPlotItem::show </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Show the item. </p>
</div>
</div>
<a class="anchor" id="aef70936d34ef661876692e6a06d4a464"></a><!-- doxytag: member="QwtPlotRasterItem::testItemAttribute" ref="aef70936d34ef661876692e6a06d4a464" args="(ItemAttribute) const " -->
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<td class="memname">bool QwtPlotItem::testItemAttribute </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a> </td>
<td class="paramname"><em>attribute</em></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Test an item attribute</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">attribute</td><td>Attribute type </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>true/false </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute()</a>, <a class="el" href="class_qwt_plot_item.html#ae0fabcdd35f4818ce5bbe019b0eed062">ItemAttribute</a> </dd></dl>
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<a class="anchor" id="a17d8f350acf46d2ba7a68df977f80a52"></a><!-- doxytag: member="QwtPlotRasterItem::testPaintAttribute" ref="a17d8f350acf46d2ba7a68df977f80a52" args="(PaintAttribute) const " -->
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<td class="memname">bool QwtPlotRasterItem::testPaintAttribute </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a> </td>
<td class="paramname"><em>attribute</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return the current paint attributes. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_raster_item.html#a75ac68ea258b8612e8a1893e845394ee">PaintAttribute</a>, <a class="el" href="class_qwt_plot_raster_item.html#a70d6b94821e5eafb29b1f045d1f3a2e6">setPaintAttribute()</a> </dd></dl>
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<a class="anchor" id="ad4009381d6a26359125549e1cf874b69"></a><!-- doxytag: member="QwtPlotRasterItem::testRenderHint" ref="ad4009381d6a26359125549e1cf874b69" args="(RenderHint) const " -->
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<td class="memname">bool QwtPlotItem::testRenderHint </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704">RenderHint</a> </td>
<td class="paramname"><em>hint</em></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Test a render hint</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">hint</td><td>Render hint </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>true/false </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#acd023c40f659c304ded324942865edc8">setRenderHint()</a>, <a class="el" href="class_qwt_plot_item.html#abe0e8a39aceef9a600b73e02550a9704" title="Render hints.">RenderHint</a> </dd></dl>
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<a class="anchor" id="a3859d011b670b5f89e45d1ccef9206f7"></a><!-- doxytag: member="QwtPlotRasterItem::title" ref="a3859d011b670b5f89e45d1ccef9206f7" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_text.html">QwtText</a> & QwtPlotItem::title </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Title of the item </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a1b74686181ab6dd5033917123c7db30f">setTitle()</a> </dd></dl>
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<a class="anchor" id="a193770cd20609a368c5130de59cb782e"></a><!-- doxytag: member="QwtPlotRasterItem::updateLegend" ref="a193770cd20609a368c5130de59cb782e" args="(QwtLegend *) const " -->
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<td class="memname">void QwtPlotItem::updateLegend </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_legend.html">QwtLegend</a> * </td>
<td class="paramname"><em>legend</em></td><td>)</td>
<td> const<code> [virtual, inherited]</code></td>
</tr>
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<p>Update the widget that represents the item on the legend. </p>
<p><a class="el" href="class_qwt_plot_item.html#a193770cd20609a368c5130de59cb782e" title="Update the widget that represents the item on the legend.">updateLegend()</a> is called from <a class="el" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged()</a> to adopt the widget representing the item on the legend to its new configuration.</p>
<p>The default implementation updates a QwtLegendItem(), but an item could be represented by any type of widget, by overloading <a class="el" href="class_qwt_plot_item.html#a09824eda5e564a853e6586bc387a3b4b" title="Allocate the widget that represents the item on the legend.">legendItem()</a> and <a class="el" href="class_qwt_plot_item.html#a193770cd20609a368c5130de59cb782e" title="Update the widget that represents the item on the legend.">updateLegend()</a>.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">legend</td><td>Legend</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a09824eda5e564a853e6586bc387a3b4b" title="Allocate the widget that represents the item on the legend.">legendItem()</a>, <a class="el" href="class_qwt_plot_item.html#ad956fdbce5b0721abccce6d09fe4d5ce">itemChanged()</a>, QwtLegend() </dd></dl>
<p>Implements <a class="el" href="class_qwt_legend_item_manager.html#ad3bd052ea242ef8595c7d6008b9cc6f4">QwtLegendItemManager</a>.</p>
<p>Reimplemented in <a class="el" href="class_qwt_plot_curve.html#aedbca95048e4c7b42cd0bf486ec36b4d">QwtPlotCurve</a>, and <a class="el" href="class_qwt_plot_marker.html#a75ea063a742c23ab1952fc2bf96b5762">QwtPlotMarker</a>.</p>
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<a class="anchor" id="abf6a70847d3db952161ca4d4a952eea0"></a><!-- doxytag: member="QwtPlotRasterItem::updateScaleDiv" ref="abf6a70847d3db952161ca4d4a952eea0" args="(const QwtScaleDiv &, const QwtScaleDiv &)" -->
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<td class="memname">void QwtPlotItem::updateScaleDiv </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> & </td>
<td class="paramname"><em>xScaleDiv</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> & </td>
<td class="paramname"><em>yScaleDiv</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [virtual, inherited]</code></td>
</tr>
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<p>Update the item to changes of the axes scale division. </p>
<p>Update the item, when the axes of plot have changed. The default implementation does nothing, but items that depend on the scale division (like QwtPlotGrid()) have to reimplement <a class="el" href="class_qwt_plot_item.html#abf6a70847d3db952161ca4d4a952eea0" title="Update the item to changes of the axes scale division.">updateScaleDiv()</a></p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">xScaleDiv</td><td>Scale division of the x-axis </td></tr>
<tr><td class="paramname">yScaleDiv</td><td>Scale division of the y-axis</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot.html#a1fb2dbc3697a66024d48c08b1d18f8a5" title="Rebuild the scales.">QwtPlot::updateAxes()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_plot_grid.html#ad15166f257160adc90b60b9e29d69edf">QwtPlotGrid</a>, <a class="el" href="class_qwt_plot_scale_item.html#a9c32bac1ff73c6527305698792a6edfe">QwtPlotScaleItem</a>, <a class="el" href="class_qwt_plot_series_item.html#a5c40b692a48718b71bed27a1802c50d0">QwtPlotSeriesItem< T ></a>, <a class="el" href="class_qwt_plot_series_item.html#a5c40b692a48718b71bed27a1802c50d0">QwtPlotSeriesItem< QwtIntervalSample ></a>, <a class="el" href="class_qwt_plot_series_item.html#a5c40b692a48718b71bed27a1802c50d0">QwtPlotSeriesItem< QPointF ></a>, and <a class="el" href="class_qwt_plot_series_item.html#a5c40b692a48718b71bed27a1802c50d0">QwtPlotSeriesItem< QwtPoint3D ></a>.</p>
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<a class="anchor" id="a7af360bf6d5a5b6257ce6b0dd99b7525"></a><!-- doxytag: member="QwtPlotRasterItem::xAxis" ref="a7af360bf6d5a5b6257ce6b0dd99b7525" args="() const " -->
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<td class="memname">int QwtPlotItem::xAxis </td>
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<td> const<code> [inherited]</code></td>
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<p>Return xAxis. </p>
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<a class="anchor" id="ac7714ffa278a10e0cf45972e487b63ff"></a><!-- doxytag: member="QwtPlotRasterItem::yAxis" ref="ac7714ffa278a10e0cf45972e487b63ff" args="() const " -->
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<td class="memname">int QwtPlotItem::yAxis </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<p>Return yAxis. </p>
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<a class="anchor" id="a4c58d814336643190b9f2918f80c30df"></a><!-- doxytag: member="QwtPlotRasterItem::z" ref="a4c58d814336643190b9f2918f80c30df" args="() const " -->
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<td class="memname">double QwtPlotItem::z </td>
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<td> const<code> [inherited]</code></td>
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<p>Plot items are painted in increasing z-order.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd><a class="el" href="class_qwt_plot_item.html#a57d90e4146133b59d589c71b3a643e82" title="Set the z value.">setZ()</a>, <a class="el" href="class_qwt_plot_dict.html#a9cbb1c5c22de93594b7e2524af108f55" title="A QwtPlotItemList of all attached plot items.">QwtPlotDict::itemList()</a> </dd></dl>
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