upstream/clipper-6.4.2/Documentation/Docs/Units/ClipperLib/Classes/PolyTree/Methods/Clear.htm


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  <h1>PolyTree.Clear</h1>


  <p class="Decl"><span class="Comment"> Del.&raquo; </span><b>procedure</b> Clear;</p>

  <p class="Decl2"><span class="Comment"> C++&nbsp;&raquo;</span> <b>void</b> Clear();</p>

  <p class="Decl3"><span class="Comment"> C#&nbsp;&nbsp;&raquo;</span> <b>public void</b> Clear();</p>
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  <p class="Body"> This method clears any PolyNode children contained by PolyTree the object.<br><br> <b>Clear</b> does <em>not</em> need to be called explicitly. The <a href="../../Clipper/Methods/Execute.htm">Clipper.Execute</a> method that accepts a PolyTree parameter will <em>automatically</em> clear the PolyTree object before propagating it with new PolyNodes. Likewise, PolyTree's destructor will also automatically clear any contained PolyNodes. </p>

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  <p class="Body"><a href="../../Clipper/Methods/Execute.htm">Clipper.Execute</a></p>
    
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