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<p>A bit field corresponding to the pixels of a rectangle.
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<a href="class_qwt_pixel_matrix.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="qwt__pixel__matrix_8h_source.html">qwt_pixel_matrix.h</a>></code></p>
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Inheritance diagram for QwtPixelMatrix:</div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:aa197eddf30db429ab267db2a875e7d71"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#aa197eddf30db429ab267db2a875e7d71">QwtPixelMatrix</a> (const QRect &<a class="el" href="class_qwt_pixel_matrix.html#a05162507dc01b9616ef4b6b079786599">rect</a>)</td></tr>
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<tr class="memdesc:aa197eddf30db429ab267db2a875e7d71"><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#aa197eddf30db429ab267db2a875e7d71">More...</a><br /></td></tr>
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<tr class="separator:aa197eddf30db429ab267db2a875e7d71"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a6691629e198fb39e6f653038cfb74f6b"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6691629e198fb39e6f653038cfb74f6b"></a>
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 </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#a6691629e198fb39e6f653038cfb74f6b">~QwtPixelMatrix</a> ()</td></tr>
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<tr class="memdesc:a6691629e198fb39e6f653038cfb74f6b"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br /></td></tr>
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<tr class="separator:a6691629e198fb39e6f653038cfb74f6b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae8150f8d1f1922746172e9da1488e98b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#ae8150f8d1f1922746172e9da1488e98b">setRect</a> (const QRect &<a class="el" href="class_qwt_pixel_matrix.html#a05162507dc01b9616ef4b6b079786599">rect</a>)</td></tr>
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<tr class="separator:ae8150f8d1f1922746172e9da1488e98b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a05162507dc01b9616ef4b6b079786599"><td class="memItemLeft" align="right" valign="top">QRect </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#a05162507dc01b9616ef4b6b079786599">rect</a> () const </td></tr>
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<tr class="separator:a05162507dc01b9616ef4b6b079786599"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a1089a8d1da928ed35766da496a9b234e"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#a1089a8d1da928ed35766da496a9b234e">testPixel</a> (int x, int y) const </td></tr>
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<tr class="memdesc:a1089a8d1da928ed35766da496a9b234e"><td class="mdescLeft"> </td><td class="mdescRight">Test if a pixel has been set. <a href="#a1089a8d1da928ed35766da496a9b234e">More...</a><br /></td></tr>
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<tr class="separator:a1089a8d1da928ed35766da496a9b234e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a51c2ecd161c0c93dccb62fcf640ff280"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#a51c2ecd161c0c93dccb62fcf640ff280">testAndSetPixel</a> (int x, int y, bool on)</td></tr>
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<tr class="memdesc:a51c2ecd161c0c93dccb62fcf640ff280"><td class="mdescLeft"> </td><td class="mdescRight">Set a pixel and test if a pixel has been set before. <a href="#a51c2ecd161c0c93dccb62fcf640ff280">More...</a><br /></td></tr>
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<tr class="separator:a51c2ecd161c0c93dccb62fcf640ff280"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a786989b4ff383d7939edbba31c89178d"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#a786989b4ff383d7939edbba31c89178d">index</a> (int x, int y) const </td></tr>
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<tr class="memdesc:a786989b4ff383d7939edbba31c89178d"><td class="mdescLeft"> </td><td class="mdescRight">Calculate the index in the bit field corresponding to a position. <a href="#a786989b4ff383d7939edbba31c89178d">More...</a><br /></td></tr>
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<tr class="separator:a786989b4ff383d7939edbba31c89178d"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>A bit field corresponding to the pixels of a rectangle. </p>
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<p><a class="el" href="class_qwt_pixel_matrix.html" title="A bit field corresponding to the pixels of a rectangle. ">QwtPixelMatrix</a> is intended to filter out duplicates in an unsorted array of points. </p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<a class="anchor" id="aa197eddf30db429ab267db2a875e7d71"></a>
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<td class="memname">QwtPixelMatrix::QwtPixelMatrix </td>
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<td>(</td>
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<td class="paramtype">const QRect & </td>
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<td class="paramname"><em>rect</em></td><td>)</td>
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<td></td>
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<p>Constructor. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">rect</td><td>Bounding rectangle for the matrix </td></tr>
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</dd>
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</dl>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">int QwtPixelMatrix::index </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>x</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>y</em> </td>
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<td>)</td>
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<td></td><td> const</td>
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>Calculate the index in the bit field corresponding to a position. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">x</td><td>X-coordinate </td></tr>
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<tr><td class="paramname">y</td><td>Y-coordinate </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Index, when <a class="el" href="class_qwt_pixel_matrix.html#a05162507dc01b9616ef4b6b079786599">rect()</a> contains pos - otherwise -1. </dd></dl>
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<a class="anchor" id="a05162507dc01b9616ef4b6b079786599"></a>
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<td class="memname">QRect QwtPixelMatrix::rect </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>Bounding rectangle </dd></dl>
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<td class="memname">void QwtPixelMatrix::setRect </td>
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<td>(</td>
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<td class="paramtype">const QRect & </td>
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<td class="paramname"><em>rect</em></td><td>)</td>
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<td></td>
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<p>Set the bounding rectangle of the matrix</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">rect</td><td>Bounding rectangle</td></tr>
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</table>
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</dd>
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<dl class="section note"><dt>Note</dt><dd>All bits are cleared </dd></dl>
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<td class="memname">bool QwtPixelMatrix::testAndSetPixel </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>x</em>, </td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>on</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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<p>Set a pixel and test if a pixel has been set before. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">x</td><td>X-coordinate </td></tr>
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<tr><td class="paramname">y</td><td>Y-coordinate </td></tr>
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<tr><td class="paramname">on</td><td>Set/Clear the pixel</td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>true, when pos is outside of <a class="el" href="class_qwt_pixel_matrix.html#a05162507dc01b9616ef4b6b079786599">rect()</a>, or when the pixel was set before. </dd></dl>
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<td class="memname">bool QwtPixelMatrix::testPixel </td>
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<td>(</td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>x</em>, </td>
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<td></td>
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<td class="paramtype">int </td>
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<td></td>
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<td>)</td>
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<td></td><td> const</td>
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<p>Test if a pixel has been set. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">x</td><td>X-coordinate </td></tr>
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<tr><td class="paramname">y</td><td>Y-coordinate</td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>true, when pos is outside of <a class="el" href="class_qwt_pixel_matrix.html#a05162507dc01b9616ef4b6b079786599">rect()</a>, or when the pixel has already been set. </dd></dl>
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<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
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<ul>
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<li class="navelem"><a class="el" href="class_qwt_pixel_matrix.html">QwtPixelMatrix</a></li>
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<li class="footer">Generated by
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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</ul>
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</div>
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</body>
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</html>
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