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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_06) on Wed Dec 13 16:20:00 PST 2006 --><TITLE>BoundingPolytope (Java 3D 1.5.0)</TITLE><META NAME="keywords" CONTENT="javax.media.j3d.BoundingPolytope class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="BoundingPolytope (Java 3D 1.5.0)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <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/BoundingLeaf.html" title="class in javax.media.j3d"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/BoundingSphere.html" title="class in javax.media.j3d"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?javax/media/j3d/BoundingPolytope.html" target="_top"><B>FRAMES</B></A> <A HREF="BoundingPolytope.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.media.j3d</FONT><BR>Class BoundingPolytope</H2><PRE>java.lang.Object <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">javax.media.j3d.Bounds</A> <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>javax.media.j3d.BoundingPolytope</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.lang.Cloneable</DD></DL><HR><DL><DT><PRE>public class <B>BoundingPolytope</B><DT>extends <A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A></DL></PRE><P>A BoundingPolytope defines a polyhedral bounding region using the intersection of four or more half spaces. The region defined by a BoundingPolytope is always convex and must be closed. <p> Each plane in the BoundingPolytope specifies a half-space defined by the equation: <ul> Ax + By + Cz + D <= 0 </ul> where A, B, C, D are the parameters that specify the plane. The parameters are passed in the x, y, z, and w fields, respectively, of a Vector4d object. The intersection of the set of half-spaces corresponding to the planes in this BoundingPolytope defines the bounding region.<P><P><HR><P><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#BoundingPolytope()">BoundingPolytope</A></B>()</CODE><BR> Constructs a BoundingPolytope and initializes it to a set of 6 planes that defines a cube such that -1 <= x,y,z <= 1.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#BoundingPolytope(javax.media.j3d.Bounds)">BoundingPolytope</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A> boundsObject)</CODE><BR> Constructs a BoundingPolytope from the specified bounds object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#BoundingPolytope(javax.media.j3d.Bounds[])">BoundingPolytope</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A>[] boundsObjects)</CODE><BR> Constructs a BoundingPolytope from the specified array of bounds objects.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#BoundingPolytope(javax.vecmath.Vector4d[])">BoundingPolytope</A></B>(<A HREF="../../../javax/vecmath/Vector4d.html" title="class in javax.vecmath">Vector4d</A>[] planes)</CODE><BR> Constructs a BoundingPolytope using the specified planes.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#clone()">clone</A></B>()</CODE><BR> Creates a copy of a polytope.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#closestIntersection(javax.media.j3d.Bounds[])">closestIntersection</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A>[] boundsObjects)</CODE><BR> Finds closest bounding object that intersects this bounding polytope.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#combine(javax.media.j3d.Bounds)">combine</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A> boundsObject)</CODE><BR> Combines this bounding polytope with a bounding object so that the resulting bounding polytope encloses the original bounding polytope and the given bounds object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#combine(javax.media.j3d.Bounds[])">combine</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A>[] boundsObjects)</CODE><BR> Combines this bounding polytope with an array of bounding objects so that the resulting bounding polytope encloses the original bounding polytope and the given array of bounds object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#combine(javax.vecmath.Point3d)">combine</A></B>(<A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A> point)</CODE><BR> Combines this bounding polytope with a point.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#combine(javax.vecmath.Point3d[])">combine</A></B>(<A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A>[] points)</CODE><BR> Combines this bounding polytope with an array of points.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#equals(java.lang.Object)">equals</A></B>(java.lang.Object bounds)</CODE><BR> Indicates whether the specified <code>bounds</code> object is equal to this BoundingPolytope object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#getNumPlanes()">getNumPlanes</A></B>()</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#getPlanes(javax.vecmath.Vector4d[])">getPlanes</A></B>(<A HREF="../../../javax/vecmath/Vector4d.html" title="class in javax.vecmath">Vector4d</A>[] planes)</CODE><BR> Returns the equations of the bounding planes for this bounding polytope.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#hashCode()">hashCode</A></B>()</CODE><BR> Returns a hash code value for this BoundingPolytope object based on the data values in this object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#intersect(javax.media.j3d.Bounds)">intersect</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A> boundsObject)</CODE><BR> Test for intersection with another bounds object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#intersect(javax.media.j3d.Bounds[])">intersect</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A>[] boundsObjects)</CODE><BR> Test for intersection with another bounds object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#intersect(javax.media.j3d.Bounds[], javax.media.j3d.BoundingPolytope)">intersect</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A>[] boundsObjects, <A HREF="../../../javax/media/j3d/BoundingPolytope.html" title="class in javax.media.j3d">BoundingPolytope</A> newBoundingPolytope)</CODE><BR> Test for intersection with an array of bounds objects.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#intersect(javax.media.j3d.Bounds, javax.media.j3d.BoundingPolytope)">intersect</A></B>(<A HREF="../../../javax/media/j3d/Bounds.html" title="class in javax.media.j3d">Bounds</A> boundsObject, <A HREF="../../../javax/media/j3d/BoundingPolytope.html" title="class in javax.media.j3d">BoundingPolytope</A> newBoundPolytope)</CODE><BR> Test for intersection with another bounds object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#intersect(javax.vecmath.Point3d)">intersect</A></B>(<A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A> point)</CODE><BR> Test for intersection with a point.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/BoundingPolytope.html#intersect(javax.vecmath.Point3d, javax.vecmath.Vector3d)">intersect</A></B>(<A HREF="../../../javax/vecmath/Point3d.html" title="class in javax.vecmath">Point3d</A> origin, <A HREF="../../../javax/vecmath/Vector3d.html" title="class in javax.vecmath">Vector3d</A> direction)</CODE>⌨️ 快捷键说明
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