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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Sun Jun 23 01:50:19 PDT 2002 --><TITLE>CompressedGeometry (Java 3D API)</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="CompressedGeometry (Java 3D API)";}</SCRIPT><BODY BGCOLOR="white" onload="asd();"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/media/j3d/ColorInterpolator.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/CompressedGeometryHeader.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="CompressedGeometry.html" TARGET="_top"><B>NO FRAMES</B></A> <SCRIPT> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT><A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.media.j3d</FONT><BR>Class CompressedGeometry</H2><PRE>java.lang.Object | +--<A HREF="../../../javax/media/j3d/SceneGraphObject.html">javax.media.j3d.SceneGraphObject</A> | +--<A HREF="../../../javax/media/j3d/NodeComponent.html">javax.media.j3d.NodeComponent</A> | +--<A HREF="../../../javax/media/j3d/Geometry.html">javax.media.j3d.Geometry</A> | +--<B>javax.media.j3d.CompressedGeometry</B></PRE><HR><DL><DT>public class <B>CompressedGeometry</B><DT>extends <A HREF="../../../javax/media/j3d/Geometry.html">Geometry</A></DL><P>The compressed geometry object is used to store geometry in a compressed format. Using compressed geometry reduces the amount of memory needed by a Java 3D application and increases the speed objects can be sent over the network. Once geometry decompression hardware support becomes available, increased rendering performance will also result from the use of compressed geometry. <p> Compressed geometry may be passed to this CompressedGeometry object in one of two ways: by copying the data into this object using the existing constructor, or by passing a reference to the data. <p> <ul> <li> <b>By Copying:</b> The existing CompressedGeometry constructor copies the buffer of compressed geometry data into this CompressedGeometry object. This is appropriate for many applications, and allows Java 3D to verify the data once and then not worry about it again. </li> <li><b>By Reference:</b> A new constructor and set of methods in Java 3D version 1.2 allows compressed geometry data to be accessed by reference, directly from the user's array. To use this feature, you need to construct a CompressedGeometry object with the <code>byReference</code> flag set to <code>true</code>. In this mode, a reference to the input data is saved, but the data itself is not necessarily copied. Note that the compressed geometry header is still copied into this compressed geometry object. Data referenced by a CompressedGeometry object must not be modified after the CompressedGeometry object is constructed. Applications must exercise care not to violate this rule. If any referenced compressed geometry data is modified after construction, the results are undefined. </li> </ul><P><P><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#ALLOW_COUNT_READ">ALLOW_COUNT_READ</A></B></CODE><BR> Specifies that this CompressedGeometry object allows reading its byte count information.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#ALLOW_GEOMETRY_READ">ALLOW_GEOMETRY_READ</A></B></CODE><BR> Specifies that this CompressedGeometry object allows reading its geometry data component information.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#ALLOW_HEADER_READ">ALLOW_HEADER_READ</A></B></CODE><BR> Specifies that this CompressedGeometry object allows reading its header information.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#ALLOW_REF_DATA_READ">ALLOW_REF_DATA_READ</A></B></CODE><BR> Specifies that this CompressedGeometry allows reading the geometry data reference information for this object.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.Geometry"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Geometry.html">Geometry</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Geometry.html#ALLOW_INTERSECT">ALLOW_INTERSECT</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#CompressedGeometry(javax.media.j3d.CompressedGeometryHeader, byte[])">CompressedGeometry</A></B>(<A HREF="../../../javax/media/j3d/CompressedGeometryHeader.html">CompressedGeometryHeader</A> hdr, byte[] compressedGeometry)</CODE><BR> Creates a new CompressedGeometry NodeComponent by copying the specified compressed geometry data into this object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#CompressedGeometry(javax.media.j3d.CompressedGeometryHeader, byte[], boolean)">CompressedGeometry</A></B>(<A HREF="../../../javax/media/j3d/CompressedGeometryHeader.html">CompressedGeometryHeader</A> hdr, byte[] compressedGeometry, boolean byReference)</CODE><BR> Creates a new CompressedGeometry NodeComponent.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#CompressedGeometry(javax.media.j3d.CompressedGeometryHeader, javax.media.j3d.J3DBuffer)">CompressedGeometry</A></B>(<A HREF="../../../javax/media/j3d/CompressedGeometryHeader.html">CompressedGeometryHeader</A> hdr, <A HREF="../../../javax/media/j3d/J3DBuffer.html">J3DBuffer</A> compressedGeometry)</CODE><BR> Creates a new CompressedGeometry NodeComponent.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/j3d/NodeComponent.html">NodeComponent</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/CompressedGeometry.html#cloneNodeComponent()">cloneNodeComponent</A></B>()</CODE><BR> <B>Deprecated.</B> <I>replaced with cloneNodeComponent(boolean forceDuplicate)</I></TD>⌨️ 快捷键说明
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