File: X3DNodes.TTriangleFanSetNode.html

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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">
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<title>Castle Game Engine: X3DNodes: Class TTriangleFanSetNode</title>
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<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="TTriangleFanSetNode"></a><h1 class="cio">Class TTriangleFanSetNode</h1>
<table class="sections wide_list">
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<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 TTriangleFanSetNode = class(<a class="normal" href="X3DNodes.TAbstractComposedGeometryNode.html">TAbstractComposedGeometryNode</a>)</code></p>
<h2 class="description">Description</h2>
<div class="nodescription">no description available, TAbstractComposedGeometryNode description follows</div><div class="nodescription">no description available, TAbstractX3DGeometryNode description follows</div><div class="nodescription">no description available, TAbstractGeometryNode description follows</div><p>
Geometry nodes are the only nodes that produces some visible results during rendering. Much of the VRML language is just a method of describing properties how geometry nodes are displayed (materials, transformations, lighting).

<p>A few things that make geometry node special : </p>

<ul class="paragraph_spacing">
  <li><p>Only geometry nodes may have [Local]<a class="normal" href="X3DNodes.TAbstractGeometryNode.html#BoundingBox">BoundingBox</a>.</p></li>
  <li><p> Only geometry nodes define something visible &quot;in usual way&quot; during rendering (Some other nodes in VRML / X3D are visible but in an unusual way, like Background and Fog. These nodes must be rendered in a special way &mdash; they are not affected in any usual way by the current transformation matrix etc.)</p></li>
  <li><p> Geometry nodes are never &quot;grouping nodes&quot;, in particular there's never a geometry node that is (direct or indirect) child of another geometry node. So there's no need to be concerned whether geometry nodes' children are included in things like [Local]<a class="normal" href="X3DNodes.TAbstractGeometryNode.html#BoundingBox">BoundingBox</a> or Triangles/<a class="normal" href="X3DNodes.TAbstractGeometryNode.html#VerticesCount">VerticesCount</a>.</p></li>
  <li><p> Geometry nodes don't affect anything in graph traverse state. (This is important mostly for VRML 1.0, since in newer VRML / X3D &quot;graph traverse state&quot; is not that important.)</p></li>
</ul>

<p>

<p>For X3D, this descends from <a class="normal" href="X3DNodes.TAbstractNode.html">TAbstractNode</a>, and <a class="normal" href="X3DNodes.TAbstractX3DGeometryNode.html">TAbstractX3DGeometryNode</a> descends from us. This way in X3D <a class="normal" href="X3DNodes.TAbstractX3DGeometryNode.html">TAbstractX3DGeometryNode</a> descends from this, and also X3D hierarchy is preserved (X3DGeometryNode must descend from X3DNode).</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.TAbstractGeometryNode.html">TAbstractGeometryNode</a></li>
<li class="ancestor"><a class="normal" href="X3DNodes.TAbstractX3DGeometryNode.html">TAbstractX3DGeometryNode</a></li>
<li class="ancestor"><a class="normal" href="X3DNodes.TAbstractComposedGeometryNode.html">TAbstractComposedGeometryNode</a></li>
<li class="thisitem">TTriangleFanSetNode</li></ul><h2 class="overview">Overview</h2>
<a name="PasDoc-Methods"></a><h3 class="summary">Methods</h3>
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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.TTriangleFanSetNode.html#CreateNode">CreateNode</a></b>; override;</code></td>
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<td class="itemcode"><code>class function <b><a  href="X3DNodes.TTriangleFanSetNode.html#ClassNodeTypeName">ClassNodeTypeName</a></b>: string; override;</code></td>
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<td class="itemcode"><code>class function <b><a  href="X3DNodes.TTriangleFanSetNode.html#URNMatching">URNMatching</a></b>(const URN: string): boolean; override;</code></td>
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<td class="itemcode"><code>function <b><a  href="X3DNodes.TTriangleFanSetNode.html#CoordRangesCounts">CoordRangesCounts</a></b>(out RangeCount: <a  href="CastleUtils.TLongIntList.html">TLongIntList</a>; out SRanges, SRangeName: string; out RangeMinimumCount: Cardinal): boolean; override;</code></td>
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<td class="itemcode"><code>procedure <b><a  href="X3DNodes.TTriangleFanSetNode.html#CoordPolygons">CoordPolygons</a></b>( State: <a  href="X3DNodes.TX3DGraphTraverseState.html">TX3DGraphTraverseState</a>; PolygonHandler: <a  href="X3DNodes.html#TIndexedPolygonHandler">TIndexedPolygonHandler</a>); override;</code></td>
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<td class="itemcode"><code>function <b><a  href="X3DNodes.TTriangleFanSetNode.html#TrianglesCount">TrianglesCount</a></b>(State: <a  href="X3DNodes.TX3DGraphTraverseState.html">TX3DGraphTraverseState</a>; OverTriangulate: boolean; ProxyGeometry: <a  href="X3DNodes.TAbstractGeometryNode.html">TAbstractGeometryNode</a>; ProxyState: <a  href="X3DNodes.TX3DGraphTraverseState.html">TX3DGraphTraverseState</a>): Cardinal; 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.TTriangleFanSetNode.html#FdFanCount">FdFanCount</a></b>: <a  href="X3DFields.TMFInt32.html">TMFInt32</a> read FFdFanCount;</code></td>
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<h2 class="description">Description</h2>
<h3 class="detail">Methods</h3>
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<td class="itemcode"><a name="CreateNode"></a><code>procedure <b>CreateNode</b>; override;</code></td>
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<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="itemcode"><a name="URNMatching"></a><code>class function <b>URNMatching</b>(const URN: string): boolean; override;</code></td>
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&nbsp;</td></tr>
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<td class="itemcode"><a name="CoordRangesCounts"></a><code>function <b>CoordRangesCounts</b>(out RangeCount: <a  href="CastleUtils.TLongIntList.html">TLongIntList</a>; out SRanges, SRangeName: string; out RangeMinimumCount: Cardinal): boolean; override;</code></td>
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&nbsp;</td></tr>
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<td class="itemcode"><a name="CoordPolygons"></a><code>procedure <b>CoordPolygons</b>( State: <a  href="X3DNodes.TX3DGraphTraverseState.html">TX3DGraphTraverseState</a>; PolygonHandler: <a  href="X3DNodes.html#TIndexedPolygonHandler">TIndexedPolygonHandler</a>); override;</code></td>
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&nbsp;</td></tr>
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<td class="itemcode"><a name="TrianglesCount"></a><code>function <b>TrianglesCount</b>(State: <a  href="X3DNodes.TX3DGraphTraverseState.html">TX3DGraphTraverseState</a>; OverTriangulate: boolean; ProxyGeometry: <a  href="X3DNodes.TAbstractGeometryNode.html">TAbstractGeometryNode</a>; ProxyState: <a  href="X3DNodes.TX3DGraphTraverseState.html">TX3DGraphTraverseState</a>): Cardinal; override;</code></td>
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&nbsp;</td></tr>
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<h3 class="detail">Properties</h3>
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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="FdFanCount"></a><code>property <b>FdFanCount</b>: <a  href="X3DFields.TMFInt32.html">TMFInt32</a> read FFdFanCount;</code></td>
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&nbsp;</td></tr>
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