336 lines
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336 lines
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<div class="title">QwtPixelMatrix Class Reference</div> </div>
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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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<table class="memberdecls">
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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#a8194b741d283b9aa3a5c4b4e7d2a530f">rect</a>)</td></tr>
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<tr class="memdesc:aa197eddf30db429ab267db2a875e7d71"><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="class_qwt_pixel_matrix.html#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 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#a8194b741d283b9aa3a5c4b4e7d2a530f">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:a8194b741d283b9aa3a5c4b4e7d2a530f"><td class="memItemLeft" align="right" valign="top">QRect </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#a8194b741d283b9aa3a5c4b4e7d2a530f">rect</a> () const</td></tr>
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<tr class="separator:a8194b741d283b9aa3a5c4b4e7d2a530f"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a0002dae3824ca4f7b09ecb65ffaaf93b"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_pixel_matrix.html#a0002dae3824ca4f7b09ecb65ffaaf93b">testPixel</a> (int x, int y) const</td></tr>
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<tr class="memdesc:a0002dae3824ca4f7b09ecb65ffaaf93b"><td class="mdescLeft"> </td><td class="mdescRight">Test if a pixel has been set. <a href="class_qwt_pixel_matrix.html#a0002dae3824ca4f7b09ecb65ffaaf93b">More...</a><br /></td></tr>
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<tr class="separator:a0002dae3824ca4f7b09ecb65ffaaf93b"><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="class_qwt_pixel_matrix.html#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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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
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Public Attributes</h2></td></tr>
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<tr class="memitem:ab0e5ec8f081463c2a6ebc5da196ba01d"><td class="memItemLeft" align="right" valign="top"><a id="ab0e5ec8f081463c2a6ebc5da196ba01d"></a>
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int </td><td class="memItemRight" valign="bottom"><b>const</b></td></tr>
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<tr class="separator:ab0e5ec8f081463c2a6ebc5da196ba01d"><td class="memSeparator" colspan="2"> </td></tr>
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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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<p class="definition">Definition at line <a class="el" href="qwt__pixel__matrix_8h_source.html#l00024">24</a> of file <a class="el" href="qwt__pixel__matrix_8h_source.html">qwt_pixel_matrix.h</a>.</p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<a id="aa197eddf30db429ab267db2a875e7d71"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#aa197eddf30db429ab267db2a875e7d71">◆ </a></span>QwtPixelMatrix()</h2>
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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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<span class="mlabels"><span class="mlabel">explicit</span></span> </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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</table>
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</dd>
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</dl>
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<p class="definition">Definition at line <a class="el" href="qwt__pixel__matrix_8cpp_source.html#l00017">17</a> of file <a class="el" href="qwt__pixel__matrix_8cpp_source.html">qwt_pixel_matrix.cpp</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<a id="a8194b741d283b9aa3a5c4b4e7d2a530f"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a8194b741d283b9aa3a5c4b4e7d2a530f">◆ </a></span>rect()</h2>
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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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<p class="definition">Definition at line <a class="el" href="qwt__pixel__matrix_8cpp_source.html#l00048">48</a> of file <a class="el" href="qwt__pixel__matrix_8cpp_source.html">qwt_pixel_matrix.cpp</a>.</p>
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<a id="ae8150f8d1f1922746172e9da1488e98b"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ae8150f8d1f1922746172e9da1488e98b">◆ </a></span>setRect()</h2>
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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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</dd>
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<dl class="section note"><dt>Note</dt><dd>All bits are cleared </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__pixel__matrix_8cpp_source.html#l00035">35</a> of file <a class="el" href="qwt__pixel__matrix_8cpp_source.html">qwt_pixel_matrix.cpp</a>.</p>
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<a id="a51c2ecd161c0c93dccb62fcf640ff280"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a51c2ecd161c0c93dccb62fcf640ff280">◆ </a></span>testAndSetPixel()</h2>
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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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<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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<dl class="section return"><dt>Returns</dt><dd>true, when pos is outside of <a class="el" href="class_qwt_pixel_matrix.html#a8194b741d283b9aa3a5c4b4e7d2a530f">rect()</a>, or when the pixel was set before. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__pixel__matrix_8h_source.html#l00067">67</a> of file <a class="el" href="qwt__pixel__matrix_8h_source.html">qwt_pixel_matrix.h</a>.</p>
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<a id="a0002dae3824ca4f7b09ecb65ffaaf93b"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a0002dae3824ca4f7b09ecb65ffaaf93b">◆ </a></span>testPixel()</h2>
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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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<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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</dd>
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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#a8194b741d283b9aa3a5c4b4e7d2a530f">rect()</a>, or when the pixel has already been set. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="qwt__pixel__matrix_8h_source.html#l00051">51</a> of file <a class="el" href="qwt__pixel__matrix_8h_source.html">qwt_pixel_matrix.h</a>.</p>
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