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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 16:20:14 PST 2006 --><TITLE>Vector2d (Java 3D 1.5.0)</TITLE><META NAME="keywords" CONTENT="javax.vecmath.Vector2d class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Vector2d (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/vecmath/Tuple4i.html" title="class in javax.vecmath"><B>PREV CLASS</B></A> <A HREF="../../javax/vecmath/Vector2f.html" title="class in javax.vecmath"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html?javax/vecmath/Vector2d.html" target="_top"><B>FRAMES</B></A> <A HREF="Vector2d.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 | <A HREF="#fields_inherited_from_class_javax.vecmath.Tuple2d">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><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.vecmath</FONT><BR>Class Vector2d</H2><PRE>java.lang.Object <IMG SRC="../../resources/inherit.gif" ALT="extended by "><A HREF="../../javax/vecmath/Tuple2d.html" title="class in javax.vecmath">javax.vecmath.Tuple2d</A> <IMG SRC="../../resources/inherit.gif" ALT="extended by "><B>javax.vecmath.Vector2d</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.io.Serializable, java.lang.Cloneable</DD></DL><HR><DL><DT><PRE>public class <B>Vector2d</B><DT>extends <A HREF="../../javax/vecmath/Tuple2d.html" title="class in javax.vecmath">Tuple2d</A><DT>implements java.io.Serializable</DL></PRE><P>A 2-element vector that is represented by double-precision floating point x,y coordinates.<P><P><DL><DT><B>See Also:</B><DD><A HREF="../../serialized-form.html#javax.vecmath.Vector2d">Serialized Form</A></DL><HR><P><!-- =========== FIELD SUMMARY =========== --><A NAME="field_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>Field Summary</B></FONT></TH></TR></TABLE> <A NAME="fields_inherited_from_class_javax.vecmath.Tuple2d"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Fields inherited from class javax.vecmath.<A HREF="../../javax/vecmath/Tuple2d.html" title="class in javax.vecmath">Tuple2d</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../javax/vecmath/Tuple2d.html#x">x</A>, <A HREF="../../javax/vecmath/Tuple2d.html#y">y</A></CODE></TD></TR></TABLE> <!-- ======== 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/vecmath/Vector2d.html#Vector2d()">Vector2d</A></B>()</CODE><BR> Constructs and initializes a Vector2d to (0,0).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/vecmath/Vector2d.html#Vector2d(double[])">Vector2d</A></B>(double[] v)</CODE><BR> Constructs and initializes a Vector2d from the specified array.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/vecmath/Vector2d.html#Vector2d(double, double)">Vector2d</A></B>(double x, double y)</CODE><BR> Constructs and initializes a Vector2d from the specified xy coordinates.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/vecmath/Vector2d.html#Vector2d(javax.vecmath.Tuple2d)">Vector2d</A></B>(<A HREF="../../javax/vecmath/Tuple2d.html" title="class in javax.vecmath">Tuple2d</A> t1)</CODE><BR> Constructs and initializes a Vector2d from the specified Tuple2d.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/vecmath/Vector2d.html#Vector2d(javax.vecmath.Tuple2f)">Vector2d</A></B>(<A HREF="../../javax/vecmath/Tuple2f.html" title="class in javax.vecmath">Tuple2f</A> t1)</CODE><BR> Constructs and initializes a Vector2d from the specified Tuple2f.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/vecmath/Vector2d.html#Vector2d(javax.vecmath.Vector2d)">Vector2d</A></B>(<A HREF="../../javax/vecmath/Vector2d.html" title="class in javax.vecmath">Vector2d</A> v1)</CODE><BR> Constructs and initializes a Vector2d from the specified Vector2d.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/vecmath/Vector2d.html#Vector2d(javax.vecmath.Vector2f)">Vector2d</A></B>(<A HREF="../../javax/vecmath/Vector2f.html" title="class in javax.vecmath">Vector2f</A> v1)</CODE><BR> Constructs and initializes a Vector2d from the specified Vector2f.</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> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/vecmath/Vector2d.html#angle(javax.vecmath.Vector2d)">angle</A></B>(<A HREF="../../javax/vecmath/Vector2d.html" title="class in javax.vecmath">Vector2d</A> v1)</CODE><BR> Returns the angle in radians between this vector and the vector parameter; the return value is constrained to the range [0,PI].</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/vecmath/Vector2d.html#dot(javax.vecmath.Vector2d)">dot</A></B>(<A HREF="../../javax/vecmath/Vector2d.html" title="class in javax.vecmath">Vector2d</A> v1)</CODE><BR> Computes the dot product of the this vector and vector v1.</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/vecmath/Vector2d.html#length()">length</A></B>()</CODE><BR> Returns the length of this vector.</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/vecmath/Vector2d.html#lengthSquared()">lengthSquared</A></B>()</CODE><BR> Returns the squared length of this vector.</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/vecmath/Vector2d.html#normalize()">normalize</A></B>()</CODE><BR> Normalizes this vector in place.</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/vecmath/Vector2d.html#normalize(javax.vecmath.Vector2d)">normalize</A></B>(<A HREF="../../javax/vecmath/Vector2d.html" title="class in javax.vecmath">Vector2d</A> v1)</CODE><BR> Sets the value of this vector to the normalization of vector v1.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.vecmath.Tuple2d"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class javax.vecmath.<A HREF="../../javax/vecmath/Tuple2d.html" title="class in javax.vecmath">Tuple2d</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../javax/vecmath/Tuple2d.html#absolute()">absolute</A>, <A HREF="../../javax/vecmath/Tuple2d.html#absolute(javax.vecmath.Tuple2d)">absolute</A>, <A HREF="../../javax/vecmath/Tuple2d.html#add(javax.vecmath.Tuple2d)">add</A>, <A HREF="../../javax/vecmath/Tuple2d.html#add(javax.vecmath.Tuple2d, javax.vecmath.Tuple2d)">add</A>, <A HREF="../../javax/vecmath/Tuple2d.html#clamp(double, double)">clamp</A>, <A HREF="../../javax/vecmath/Tuple2d.html#clamp(double, double, javax.vecmath.Tuple2d)">clamp</A>, <A HREF="../../javax/vecmath/Tuple2d.html#clampMax(double)">clampMax</A>, <A HREF="../../javax/vecmath/Tuple2d.html#clampMax(double, javax.vecmath.Tuple2d)">clampMax</A>, <A HREF="../../javax/vecmath/Tuple2d.html#clampMin(double)">clampMin</A>, <A HREF="../../javax/vecmath/Tuple2d.html#clampMin(double, javax.vecmath.Tuple2d)">clampMin</A>, <A HREF="../../javax/vecmath/Tuple2d.html#clone()">clone</A>, <A HREF="../../javax/vecmath/Tuple2d.html#epsilonEquals(javax.vecmath.Tuple2d, double)">epsilonEquals</A>, <A HREF="../../javax/vecmath/Tuple2d.html#equals(java.lang.Object)">equals</A>, <A HREF="../../javax/vecmath/Tuple2d.html#equals(javax.vecmath.Tuple2d)">equals</A>, <A HREF="../../javax/vecmath/Tuple2d.html#get(double[])">get</A>, <A HREF="../../javax/vecmath/Tuple2d.html#getX()">getX</A>, <A HREF="../../javax/vecmath/Tuple2d.html#getY()">getY</A>, <A HREF="../../javax/vecmath/Tuple2d.html#hashCode()">hashCode</A>, <A HREF="../../javax/vecmath/Tuple2d.html#interpolate(javax.vecmath.Tuple2d, double)">interpolate</A>, <A HREF="../../javax/vecmath/Tuple2d.html#interpolate(javax.vecmath.Tuple2d, javax.vecmath.Tuple2d, double)">interpolate</A>, <A HREF="../../javax/vecmath/Tuple2d.html#negate()">negate</A>, <A HREF="../../javax/vecmath/Tuple2d.html#negate(javax.vecmath.Tuple2d)">negate</A>, <A HREF="../../javax/vecmath/Tuple2d.html#scale(double)">scale</A>, <A HREF="../../javax/vecmath/Tuple2d.html#scale(double, javax.vecmath.Tuple2d)">scale</A>, <A HREF="../../javax/vecmath/Tuple2d.html#scaleAdd(double, javax.vecmath.Tuple2d)">scaleAdd</A>, <A HREF="../../javax/vecmath/Tuple2d.html#scaleAdd(double, javax.vecmath.Tuple2d, javax.vecmath.Tuple2d)">scaleAdd</A>, <A HREF="../../javax/vecmath/Tuple2d.html#set(double[])">set</A>, <A HREF="../../javax/vecmath/Tuple2d.html#set(double, double)">set</A>, <A HREF="../../javax/vecmath/Tuple2d.html#set(javax.vecmath.Tuple2d)">set</A>, <A HREF="../../javax/vecmath/Tuple2d.html#set(javax.vecmath.Tuple2f)">set</A>, <A HREF="../../javax/vecmath/Tuple2d.html#setX(double)">setX</A>, <A HREF="../../javax/vecmath/Tuple2d.html#setY(double)">setY</A>, <A HREF="../../javax/vecmath/Tuple2d.html#sub(javax.vecmath.Tuple2d)">sub</A>, <A HREF="../../javax/vecmath/Tuple2d.html#sub(javax.vecmath.Tuple2d, javax.vecmath.Tuple2d)">sub</A>, <A HREF="../../javax/vecmath/Tuple2d.html#toString()">toString</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>finalize, getClass, notify, notifyAll, wait, wait, wait</CODE></TD></TR></TABLE> <P>⌨️ 快捷键说明
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