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<h1 class="firstHeading">Tutorial:ACIS Tutorial 3: Understanding and traversing ACIS topology (Part IV)</h1>
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<p>This is the fourth and final part of Tutorial 3. The previous three parts can be found at <a href="/r18/index.php/Tutorial:ACIS_Tutorial_3:_Understanding_and_traversing_ACIS_topology_%28Part_I%29" title="Tutorial:ACIS Tutorial 3: Understanding and traversing ACIS topology (Part I)">Tutorial 3: Understanding and traversing ACIS topology (Part I)</a>, <a href="/r18/index.php/Tutorial:ACIS_Tutorial_3:_Understanding_and_traversing_ACIS_topology_%28Part_II%29" title="Tutorial:ACIS Tutorial 3: Understanding and traversing ACIS topology (Part II)">Tutorial 3: Understanding and traversing ACIS topology (Part II)</a>, and <a href="/r18/index.php/Tutorial:ACIS_Tutorial_3:_Understanding_and_traversing_ACIS_topology_%28Part_III%29" title="Tutorial:ACIS Tutorial 3: Understanding and traversing ACIS topology (Part III)">Tutorial 3: Understanding and traversing ACIS topology (Part III)</a>. In this part we will present two C++ examples demonstrating the concepts presented in Parts I, II, III of the tutorial.</p><table id="toc" class="toc" summary="Contents"><tr><td><div id="toctitle"><h2>Contents</h2></div><ul><li class="toclevel-1"><a href="#Example_1"><span class="tocnumber">1</span> <span class="toctext">Example 1</span></a><ul><li class="toclevel-2"><a href="#Example_code"><span class="tocnumber">1.1</span> <span class="toctext">Example code</span></a></li><li class="toclevel-2"><a href="#Discussion"><span class="tocnumber">1.2</span> <span class="toctext">Discussion</span></a></li></ul></li><li class="toclevel-1"><a href="#Example_2"><span class="tocnumber">2</span> <span class="toctext">Example 2</span></a><ul><li class="toclevel-2"><a href="#Example_code_2"><span class="tocnumber">2.1</span> <span class="toctext">Example code</span></a></li><li class="toclevel-2"><a href="#Discussion_2"><span class="tocnumber">2.2</span> <span class="toctext">Discussion</span></a></li></ul></li><li class="toclevel-1"><a href="#How_can_one_learn_more_about_ACIS_topology.3F"><span class="tocnumber">3</span> <span class="toctext">How can one learn more about ACIS topology?</span></a></li></ul></li></ul></td></tr></table><script type="text/javascript"> if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } </script><a name="Example_1"></a><h2> <span class="mw-headline"> Example 1 </span></h2><p>In the first example we shall create a solid body and traverse its topology using both the topological ENTITY methods and the direct interface functions. The source code for this example is shown below.</p><a name="Example_code"></a><h3> <span class="mw-headline"> Example code </span></h3><pre class="source-cpp"><span class="kw2">#include</span> <stdio.<span class="me1">h</span>><span class="kw2">#include</span> <span class="st0">"acis.hxx"</span><span class="kw2">#include</span> <span class="st0">"api.hxx"</span><span class="kw2">#include</span> <span class="st0">"kernapi.hxx"</span><span class="kw2">#include</span> <span class="st0">"cstrapi.hxx"</span><span class="kw2">#include</span> <span class="st0">"lists.hxx"</span><span class="kw2">#include</span> <span class="st0">"alltop.hxx"</span>⌨️ 快捷键说明
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