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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<title>Castle Game Engine: X3DNodes: Class TSwitchNode</title>
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<table class="container"><tr><td class="navigation">
<h2>Castle Game Engine</h2><p><a href="introduction.html" class="navigation">Introduction</a></p><p><a href="AllUnits.html" class="navigation">Units</a></p><p><a href="ClassHierarchy.html" class="navigation">Class Hierarchy</a></p><p><a href="AllClasses.html" class="navigation">Classes, Interfaces, Objects and Records</a></p><p><a href="AllTypes.html" class="navigation">Types</a></p><p><a href="AllVariables.html" class="navigation">Variables</a></p><p><a href="AllConstants.html" class="navigation">Constants</a></p><p><a href="AllFunctions.html" class="navigation">Functions and Procedures</a></p><p><a href="AllIdentifiers.html" class="navigation">Identifiers</a></p></td><td class="content">
<a name="TSwitchNode"></a><h1 class="cio">Class TSwitchNode</h1>
<table class="sections wide_list">
<tr>
<td><a class="section" href="#PasDoc-Description">Description</a></td><td><a class="section" href="#PasDoc-Hierarchy">Hierarchy</a></td><td>Fields</td><td><a class="section" href="#PasDoc-Methods">Methods</a></td><td><a class="section" href="#PasDoc-Properties">Properties</a></td></tr></table>
<a name="PasDoc-Description"></a><h2 class="unit">Unit</h2>
<p class="unitlink">
<a  href="X3DNodes.html">X3DNodes</a></p>
<h2 class="declaration">Declaration</h2>
<p class="declaration">
<code>type TSwitchNode = class(<a class="normal" href="X3DNodes.TAbstractX3DGroupingNode.html">TAbstractX3DGroupingNode</a>)</code></p>
<h2 class="description">Description</h2>
<p>
Switch node.

<p>Compatibility node: this class is used for both VRML 97 and X3D. Although field name changed for X3D (in VRML 97, &quot;children&quot; was called &quot;choice&quot;), this is handled seamlessly using our TX3DFieldOrEvent.AddAlternativeField mechanism. In other words, programmer simply works with <a class="normal" href="X3DNodes.TAbstractX3DGroupingNode.html#FdChildren">FdChildren</a> field, and when reading/writing VRML file we take care to actually use either &quot;children&quot; or &quot;choice&quot; name, depending on used VRML version.</p>
<a name="PasDoc-Hierarchy"></a><h2 class="hierarchy">Hierarchy</h2>
<ul class="hierarchy"><li class="ancestor">TPersistent</li>
<li class="ancestor"><a class="normal" href="CastleInterfaces.TNonRefCountedInterfacedPersistent.html">TNonRefCountedInterfacedPersistent</a></li>
<li class="ancestor"><a class="normal" href="X3DFields.TX3DFileItem.html">TX3DFileItem</a></li>
<li class="ancestor"><a class="normal" href="X3DNodes.TX3DNode.html">TX3DNode</a></li>
<li class="ancestor"><a class="normal" href="X3DNodes.TAbstractNode.html">TAbstractNode</a></li>
<li class="ancestor"><a class="normal" href="X3DNodes.TAbstractChildNode.html">TAbstractChildNode</a></li>
<li class="ancestor"><a class="normal" href="X3DNodes.TAbstractGroupingNode.html">TAbstractGroupingNode</a></li>
<li class="ancestor"><a class="normal" href="X3DNodes.TAbstractX3DGroupingNode.html">TAbstractX3DGroupingNode</a></li>
<li class="thisitem">TSwitchNode</li></ul><h2 class="overview">Overview</h2>
<a name="PasDoc-Methods"></a><h3 class="summary">Methods</h3>
<table class="summary wide_list">
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<td class="visibility"><a  href="legend.html"><img  src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>procedure <b><a  href="X3DNodes.TSwitchNode.html#DirectEnumerateActive">DirectEnumerateActive</a></b>( Func: <a  href="X3DNodes.html#TEnumerateChildrenFunction">TEnumerateChildrenFunction</a>); override;</code></td>
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>procedure <b><a  href="X3DNodes.TSwitchNode.html#CreateNode">CreateNode</a></b>; override;</code></td>
</tr>
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>class function <b><a  href="X3DNodes.TSwitchNode.html#ClassNodeTypeName">ClassNodeTypeName</a></b>: string; override;</code></td>
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>class function <b><a  href="X3DNodes.TSwitchNode.html#ForVRMLVersion">ForVRMLVersion</a></b>(const Version: <a  href="X3DNodes.html#TX3DVersion">TX3DVersion</a>): boolean; override;</code></td>
</tr>
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>class function <b><a  href="X3DNodes.TSwitchNode.html#URNMatching">URNMatching</a></b>(const URN: string): boolean; override;</code></td>
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>function <b><a  href="X3DNodes.TSwitchNode.html#TransformationChange">TransformationChange</a></b>: <a  href="X3DNodes.html#TNodeTransformationChange">TNodeTransformationChange</a>; override;</code></td>
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<a name="PasDoc-Properties"></a><h3 class="summary">Properties</h3>
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<td class="itemcode"><code>property <b><a  href="X3DNodes.TSwitchNode.html#FdWhichChoice">FdWhichChoice</a></b>: <a  href="X3DFields.TSFInt32.html">TSFInt32</a> read FFdWhichChoice;</code></td>
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</table>
<h2 class="description">Description</h2>
<h3 class="detail">Methods</h3>
<table class="detail wide_list">
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<td class="visibility"><a  href="legend.html"><img  src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><a name="DirectEnumerateActive"></a><code>procedure <b>DirectEnumerateActive</b>( Func: <a  href="X3DNodes.html#TEnumerateChildrenFunction">TEnumerateChildrenFunction</a>); override;</code></td>
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&nbsp;</td></tr>
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="CreateNode"></a><code>procedure <b>CreateNode</b>; override;</code></td>
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&nbsp;</td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="ClassNodeTypeName"></a><code>class function <b>ClassNodeTypeName</b>: string; override;</code></td>
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&nbsp;</td></tr>
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="ForVRMLVersion"></a><code>class function <b>ForVRMLVersion</b>(const Version: <a  href="X3DNodes.html#TX3DVersion">TX3DVersion</a>): boolean; override;</code></td>
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&nbsp;</td></tr>
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<table class="detail wide_list">
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="URNMatching"></a><code>class function <b>URNMatching</b>(const URN: string): boolean; override;</code></td>
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<tr><td colspan="2">
&nbsp;</td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="TransformationChange"></a><code>function <b>TransformationChange</b>: <a  href="X3DNodes.html#TNodeTransformationChange">TNodeTransformationChange</a>; override;</code></td>
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&nbsp;</td></tr>
</table>
<h3 class="detail">Properties</h3>
<table class="detail wide_list">
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<td class="visibility"><a  href="legend.html"><img  src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="FdWhichChoice"></a><code>property <b>FdWhichChoice</b>: <a  href="X3DFields.TSFInt32.html">TSFInt32</a> read FFdWhichChoice;</code></td>
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&nbsp;</td></tr>
</table>
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