Peter M. Groen / openbr

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   <div id="projectname">Qwt User's Guide&#160;<span id="projectnumber">6.0.1</span></div>
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<a href="#pub-static-methods">Static Public Member Functions</a>  </div>
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<h1>QwtClipper Class Reference</h1>  </div>
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<!-- doxytag: class="QwtClipper" -->
<p>Some clipping algos.  
<a href="#_details">More...</a></p>

<p><code>#include &lt;<a class="el" href="qwt__clipper_8h_source.html">qwt_clipper.h</a>&gt;</code></p>

<p><a href="class_qwt_clipper-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static QVector&lt; <a class="el" href="class_qwt_interval.html">QwtInterval</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_clipper.html#ab36605186b4a1c411fccb3b68cf1724a">clipCircle</a> (const QRectF &amp;, const QPointF &amp;, double radius)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static QPolygon&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_clipper.html#ab42cda85c068194ae0c60f66ecd12022">clipPolygon</a> (const QRect &amp;, const QPolygon &amp;, bool closePolygon=false)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static QPolygonF&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_clipper.html#ab7f737adc53ccd730934197359de3c95">clipPolygonF</a> (const QRectF &amp;, const QPolygonF &amp;, bool closePolygon=false)</td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Some clipping algos. </p>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ab36605186b4a1c411fccb3b68cf1724a"></a><!-- doxytag: member="QwtClipper::clipCircle" ref="ab36605186b4a1c411fccb3b68cf1724a" args="(const QRectF &amp;, const QPointF &amp;, double radius)" -->
<div class="memitem">
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          <td class="memname">QVector&lt; <a class="el" href="class_qwt_interval.html">QwtInterval</a> &gt; QwtClipper::clipCircle </td>
          <td>(</td>
          <td class="paramtype">const QRectF &amp;&#160;</td>
          <td class="paramname"><em>clipRect</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QPointF &amp;&#160;</td>
          <td class="paramname"><em>center</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>radius</em>&#160;</td>
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          <td></td>
          <td>)</td>
          <td></td><td><code> [static]</code></td>
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<p>Circle clipping</p>
<p><a class="el" href="class_qwt_clipper.html#ab36605186b4a1c411fccb3b68cf1724a">clipCircle()</a> devides a circle into intervals of angles representing arcs of the circle. When the circle is completely inside the clip rectangle an interval [0.0, 2 * M_PI] is returned.</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">clipRect</td><td>Clip rectangle </td></tr>
    <tr><td class="paramname">center</td><td>Center of the circle </td></tr>
    <tr><td class="paramname">radius</td><td>Radius of the circle</td></tr>
  </table>
  </dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Arcs of the circle </dd></dl>

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<a class="anchor" id="ab42cda85c068194ae0c60f66ecd12022"></a><!-- doxytag: member="QwtClipper::clipPolygon" ref="ab42cda85c068194ae0c60f66ecd12022" args="(const QRect &amp;, const QPolygon &amp;, bool closePolygon=false)" -->
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          <td class="memname">QPolygon QwtClipper::clipPolygon </td>
          <td>(</td>
          <td class="paramtype">const QRect &amp;&#160;</td>
          <td class="paramname"><em>clipRect</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QPolygon &amp;&#160;</td>
          <td class="paramname"><em>polygon</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>closePolygon</em> = <code>false</code>&#160;</td>
        </tr>
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          <td></td>
          <td>)</td>
          <td></td><td><code> [static]</code></td>
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<p>Sutherland-Hodgman polygon clipping</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">clipRect</td><td>Clip rectangle </td></tr>
    <tr><td class="paramname">polygon</td><td>Polygon </td></tr>
    <tr><td class="paramname">closePolygon</td><td>True, when the polygon is closed</td></tr>
  </table>
  </dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Clipped polygon </dd></dl>

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<a class="anchor" id="ab7f737adc53ccd730934197359de3c95"></a><!-- doxytag: member="QwtClipper::clipPolygonF" ref="ab7f737adc53ccd730934197359de3c95" args="(const QRectF &amp;, const QPolygonF &amp;, bool closePolygon=false)" -->
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          <td class="memname">QPolygonF QwtClipper::clipPolygonF </td>
          <td>(</td>
          <td class="paramtype">const QRectF &amp;&#160;</td>
          <td class="paramname"><em>clipRect</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QPolygonF &amp;&#160;</td>
          <td class="paramname"><em>polygon</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>closePolygon</em> = <code>false</code>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td><code> [static]</code></td>
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<div class="memdoc">
<p>Sutherland-Hodgman polygon clipping</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">clipRect</td><td>Clip rectangle </td></tr>
    <tr><td class="paramname">polygon</td><td>Polygon </td></tr>
    <tr><td class="paramname">closePolygon</td><td>True, when the polygon is closed</td></tr>
  </table>
  </dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Clipped polygon </dd></dl>

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