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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 01:50:33 PDT 2002 --><TITLE>PathInterpolator (Java 3D API)</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="PathInterpolator (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/OrientedShape3D.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/PhysicalBody.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="PathInterpolator.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 PathInterpolator</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/Interpolator.html">javax.media.j3d.Interpolator</A> | +--<A HREF="../../../javax/media/j3d/TransformInterpolator.html">javax.media.j3d.TransformInterpolator</A> | +--<B>javax.media.j3d.PathInterpolator</B></PRE><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../javax/media/j3d/PositionPathInterpolator.html">PositionPathInterpolator</A>, <A HREF="../../../javax/media/j3d/RotationPathInterpolator.html">RotationPathInterpolator</A>, <A HREF="../../../javax/media/j3d/RotPosPathInterpolator.html">RotPosPathInterpolator</A>, <A HREF="../../../javax/media/j3d/RotPosScalePathInterpolator.html">RotPosScalePathInterpolator</A></DD></DL><HR><DL><DT>public abstract class <B>PathInterpolator</B><DT>extends <A HREF="../../../javax/media/j3d/TransformInterpolator.html">TransformInterpolator</A></DL><P>PathInterpolator behavior. This class defines the base class for all Path Interpolators. Subclasses have access to the computePathInterpolation() method, which computes the currentInterpolationValue given the current time and alpha. The method also computes the currentKnotIndex, which is based on the currentInterpolationValue. The currentInterpolationValue is calculated by linearly interpolating among a series of predefined knots (using the value generated by the specified Alpha object). The first knot must have a value of 0.0 and the last knot must have a value of 1.0. An intermediate knot with index k must have a value strictly greater than any knot with index less than k.<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>protected float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/PathInterpolator.html#currentInterpolationValue">currentInterpolationValue</A></B></CODE><BR> This value is the ratio between knot values indicated by the currentKnotIndex variable.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/PathInterpolator.html#currentKnotIndex">currentKnotIndex</A></B></CODE><BR> This value is the index of the current base knot value, as determined by the alpha function.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.TransformInterpolator"><!-- --></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/TransformInterpolator.html">TransformInterpolator</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/TransformInterpolator.html#axis">axis</A>, <A HREF="../../../javax/media/j3d/TransformInterpolator.html#axisInverse">axisInverse</A>, <A HREF="../../../javax/media/j3d/TransformInterpolator.html#target">target</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.Interpolator"><!-- --></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/Interpolator.html">Interpolator</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Interpolator.html#defaultWakeupCriterion">defaultWakeupCriterion</A></CODE></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/PathInterpolator.html#PathInterpolator(javax.media.j3d.Alpha, float[])">PathInterpolator</A></B>(<A HREF="../../../javax/media/j3d/Alpha.html">Alpha</A> alpha, float[] knots)</CODE><BR> <B>Deprecated.</B> <I>As of Java 3D version 1.3, replaced by <code>PathInterpolator(Alpha, TransformGroup, float[]) </code></I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/PathInterpolator.html#PathInterpolator(javax.media.j3d.Alpha, javax.media.j3d.TransformGroup, float[])">PathInterpolator</A></B>(<A HREF="../../../javax/media/j3d/Alpha.html">Alpha</A> alpha, <A HREF="../../../javax/media/j3d/TransformGroup.html">TransformGroup</A> target, float[] knots)</CODE><BR> Constructs a new PathInterpolator object that interpolates between the knot values in the knots array.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/PathInterpolator.html#PathInterpolator(javax.media.j3d.Alpha, javax.media.j3d.TransformGroup, javax.media.j3d.Transform3D, float[])">PathInterpolator</A></B>(<A HREF="../../../javax/media/j3d/Alpha.html">Alpha</A> alpha, <A HREF="../../../javax/media/j3d/TransformGroup.html">TransformGroup</A> target, <A HREF="../../../javax/media/j3d/Transform3D.html">Transform3D</A> axisOfTransform, float[] knots)</CODE><BR> Constructs a new PathInterpolator object that interpolates between the knot values in the knots array.</TD>⌨️ 快捷键说明
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