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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 01:50:20 PDT 2002 --><TITLE>DistanceLOD (Java 3D API)</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="DistanceLOD (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/DirectionalLight.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/ExponentialFog.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="DistanceLOD.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="#fields_inherited_from_class_javax.media.j3d.Node">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: FIELD | <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 DistanceLOD</H2><PRE>java.lang.Object | +--<A HREF="../../../javax/media/j3d/SceneGraphObject.html">javax.media.j3d.SceneGraphObject</A> | +--<A HREF="../../../javax/media/j3d/Node.html">javax.media.j3d.Node</A> | +--<A HREF="../../../javax/media/j3d/Leaf.html">javax.media.j3d.Leaf</A> | +--<A HREF="../../../javax/media/j3d/Behavior.html">javax.media.j3d.Behavior</A> | +--<A HREF="../../../javax/media/j3d/LOD.html">javax.media.j3d.LOD</A> | +--<B>javax.media.j3d.DistanceLOD</B></PRE><HR><DL><DT>public class <B>DistanceLOD</B><DT>extends <A HREF="../../../javax/media/j3d/LOD.html">LOD</A></DL><P>This class defines a distance-based LOD behavior node that operates on a Switch group node to select one of the children of that Switch node based on the distance of this LOD node from the viewer. An array of <i>n</i> monotonically increasing distance values is specified, such that distances[0] is associated with the highest level of detail and distances[<i>n</i>-1] is associated with the lowest level of detail. Based on the actual distance from the viewer to this DistanceLOD node, these <i>n</i> distance values [0, <i>n</i>-1] select from among <i>n</i>+1 levels of detail [0, <i>n</i>]. If <i>d</i> is the distance from the viewer to the LOD node, then the equation for determining which level of detail (child of the Switch node) is selected is: <p> <ul> 0, if <i>d</i> <= distances[0] <br> <i>i</i>, if distances[<i>i</i>-1] < <i>d</i> <= distances[<i>i</i>] <br> <i>n</i>, if d > distances[<i>n</i>-1] </ul> <p> Note that both the position and the array of distances are specified in the local coordinate system of this node.<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></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.Node"><!-- --></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/Node.html">Node</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Node.html#ALLOW_AUTO_COMPUTE_BOUNDS_READ">ALLOW_AUTO_COMPUTE_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_AUTO_COMPUTE_BOUNDS_WRITE">ALLOW_AUTO_COMPUTE_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_BOUNDS_READ">ALLOW_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_BOUNDS_WRITE">ALLOW_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_COLLIDABLE_READ">ALLOW_COLLIDABLE_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_COLLIDABLE_WRITE">ALLOW_COLLIDABLE_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_LOCAL_TO_VWORLD_READ">ALLOW_LOCAL_TO_VWORLD_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_PICKABLE_READ">ALLOW_PICKABLE_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_PICKABLE_WRITE">ALLOW_PICKABLE_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ENABLE_COLLISION_REPORTING">ENABLE_COLLISION_REPORTING</A>, <A HREF="../../../javax/media/j3d/Node.html#ENABLE_PICK_REPORTING">ENABLE_PICK_REPORTING</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/DistanceLOD.html#DistanceLOD()">DistanceLOD</A></B>()</CODE><BR> Constructs and initializes a DistanceLOD node with default values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/DistanceLOD.html#DistanceLOD(float[])">DistanceLOD</A></B>(float[] distances)</CODE><BR> Constructs and initializes a DistanceLOD node with the specified array of distances and a default position of (0,0,0).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/DistanceLOD.html#DistanceLOD(float[], javax.vecmath.Point3f)">DistanceLOD</A></B>(float[] distances, <A HREF="../../../javax/vecmath/Point3f.html">Point3f</A> position)</CODE><BR> Constructs and initializes a DistanceLOD node with the specified array of distances and the specified position.</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/Node.html">Node</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/DistanceLOD.html#cloneNode(boolean)">cloneNode</A></B>(boolean forceDuplicate)</CODE><BR> Used to create a new instance of the node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/DistanceLOD.html#getDistance(int)">getDistance</A></B>(int whichDistance)</CODE><BR> Returns a particular LOD cut-off distance.</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/DistanceLOD.html#getPosition(javax.vecmath.Point3f)">getPosition</A></B>(<A HREF="../../../javax/vecmath/Point3f.html">Point3f</A> position)</CODE><BR> Retrieves the current position of this LOD node.</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/DistanceLOD.html#initialize()">initialize</A></B>()</CODE><BR> Initialize method that sets up initial wakeup criteria.</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/DistanceLOD.html#numDistances()">numDistances</A></B>()</CODE><BR> Returns a count of the number of LOD distance cut-off parameters.</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/DistanceLOD.html#processStimulus(java.util.Enumeration)">processStimulus</A></B>(java.util.Enumeration criteria)</CODE><BR> Process stimulus method that computes appropriate level of detail.</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/DistanceLOD.html#setDistance(int, double)">setDistance</A></B>(int whichDistance, double distance)</CODE><BR> Sets a particular LOD cut-off distance.</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/DistanceLOD.html#setPosition(javax.vecmath.Point3f)">setPosition</A></B>(<A HREF="../../../javax/vecmath/Point3f.html">Point3f</A> position)</CODE><BR> Sets the position of this LOD node.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.LOD"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/LOD.html">LOD</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/LOD.html#addSwitch(javax.media.j3d.Switch)">addSwitch</A>, <A HREF="../../../javax/media/j3d/LOD.html#getAllSwitches()">getAllSwitches</A>, <A HREF="../../../javax/media/j3d/LOD.html#getSwitch(int)">getSwitch</A>, <A HREF="../../../javax/media/j3d/LOD.html#indexOfSwitch(javax.media.j3d.Switch)">indexOfSwitch</A>, <A HREF="../../../javax/media/j3d/LOD.html#insertSwitch(javax.media.j3d.Switch, int)">insertSwitch</A>, <A HREF="../../../javax/media/j3d/LOD.html#numSwitches()">numSwitches</A>, <A HREF="../../../javax/media/j3d/LOD.html#removeAllSwitches()">removeAllSwitches</A>, <A HREF="../../../javax/media/j3d/LOD.html#removeSwitch(int)">removeSwitch</A>, <A HREF="../../../javax/media/j3d/LOD.html#removeSwitch(javax.media.j3d.Switch)">removeSwitch</A>, <A HREF="../../../javax/media/j3d/LOD.html#setSwitch(javax.media.j3d.Switch, int)">setSwitch</A>, <A HREF="../../../javax/media/j3d/LOD.html#updateNodeReferences(javax.media.j3d.NodeReferenceTable)">updateNodeReferences</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.Behavior"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Behavior.html">Behavior</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Behavior.html#getEnable()">getEnable</A>, <A HREF="../../../javax/media/j3d/Behavior.html#getNumSchedulingIntervals()">getNumSchedulingIntervals</A>, <A HREF="../../../javax/media/j3d/Behavior.html#getSchedulingBoundingLeaf()">getSchedulingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Behavior.html#getSchedulingBounds()">getSchedulingBounds</A>, <A HREF="../../../javax/media/j3d/Behavior.html#getSchedulingInterval()">getSchedulingInterval</A>, <A HREF="../../../javax/media/j3d/Behavior.html#getView()">getView</A>, <A HREF="../../../javax/media/j3d/Behavior.html#getWakeupCondition()">getWakeupCondition</A>, <A HREF="../../../javax/media/j3d/Behavior.html#postId(int)">postId</A>, <A HREF="../../../javax/media/j3d/Behavior.html#setEnable(boolean)">setEnable</A>, <A HREF="../../../javax/media/j3d/Behavior.html#setSchedulingBoundingLeaf(javax.media.j3d.BoundingLeaf)">setSchedulingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Behavior.html#setSchedulingBounds(javax.media.j3d.Bounds)">setSchedulingBounds</A>, <A HREF="../../../javax/media/j3d/Behavior.html#setSchedulingInterval(int)">setSchedulingInterval</A>, <A HREF="../../../javax/media/j3d/Behavior.html#wakeupOn(javax.media.j3d.WakeupCondition)">wakeupOn</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.Node"><!-- --></A><TABLE BORDER="1" 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