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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Mon Jul 15 11:50:49 PDT 2002 --><TITLE>: Class Point2D</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 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="class-use/Point2D.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </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="../../../quicktime/qd3d/math/Matrix4x4.html"><B>PREV CLASS</B></A> <A HREF="../../../quicktime/qd3d/math/Point3D.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="Point2D.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">quicktime.qd3d.math</FONT><BR>Class Point2D</H2><PRE>java.lang.Object | +--<B>quicktime.qd3d.math.Point2D</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../quicktime/jdirect/InterfaceLib.html">InterfaceLib</A>, <A HREF="../../../quicktime/jdirect/PrimitivesLib.html">PrimitivesLib</A>, <A HREF="../../../quicktime/jdirect/QuickDraw3DLib.html">QuickDraw3DLib</A>, <A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A>, <A HREF="../../../quicktime/jdirect/SharedLibrary.html">SharedLibrary</A>, com.apple.jdirect.SharedLibrary</DD></DL><HR><DL><DT>public final class <B>Point2D</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A>, <A HREF="../../../quicktime/jdirect/QuickDraw3DLib.html">QuickDraw3DLib</A></DL><P>Point2D contains static calls - the implementation is found in the QDPoint class<P><DL><DT><B>See Also: </B><DD><A HREF="../../../quicktime/qd/QDPoint.html"><CODE>refer to Q3Point2D in QuickDraw3D</CODE></A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="fields_inherited_from_class_quicktime.jdirect.QuickTimeLib"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface quicktime.jdirect.<A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../quicktime/jdirect/QuickTimeLib.html#JDirect_MacOSX">JDirect_MacOSX</A>, <A HREF="../../../quicktime/jdirect/QuickTimeLib.html#libraryInstance">libraryInstance</A>, <A HREF="../../../quicktime/jdirect/QuickTimeLib.html#name">name</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_quicktime.jdirect.QuickDraw3DLib"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface quicktime.jdirect.<A HREF="../../../quicktime/jdirect/QuickDraw3DLib.html">QuickDraw3DLib</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../quicktime/jdirect/QuickDraw3DLib.html#libraryInstance">libraryInstance</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== 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>static <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/qd3d/math/Point2D.html#add(quicktime.qd.QDPoint, quicktime.qd3d.math.Vector2D)">add</A></B>(<A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> point2D, <A HREF="../../../quicktime/qd3d/math/Vector2D.html">Vector2D</A> v)</CODE><BR> Returns the result of adding a two-dimensional vector to a two-dimensional point.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/qd3d/math/Point2D.html#distance(quicktime.qd.QDPoint, quicktime.qd.QDPoint)">distance</A></B>(<A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p1, <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p2)</CODE><BR> Returns the absolute value of the distance between points p1 and p2.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/qd3d/math/Point2D.html#distanceSquared(quicktime.qd.QDPoint, quicktime.qd.QDPoint)">distanceSquared</A></B>(<A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p1, <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p2)</CODE><BR> Returns the square value of the distance between points p1 and p2.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/qd3d/math/Point2D.html#rRatio(quicktime.qd.QDPoint, quicktime.qd.QDPoint, float, float)">rRatio</A></B>(<A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p1, <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p2, float r1, float r2)</CODE><BR> Returns the two-dimensional point that lies on the line segment between the points p1 and p2 and that is at a distance from the first point determined by the ratio r1/(r1 + r2).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/qd3d/math/Vector2D.html">Vector2D</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/qd3d/math/Point2D.html#subtract(quicktime.qd.QDPoint, quicktime.qd.QDPoint)">subtract</A></B>(<A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p1, <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> p2)</CODE><BR> Returns a two-dimensional vector that is the result of subtracting the point p2 from p1.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/qd3d/math/Point2D.html#subtract(quicktime.qd.QDPoint, quicktime.qd3d.math.Vector2D)">subtract</A></B>(<A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A> point2D, <A HREF="../../../quicktime/qd3d/math/Vector2D.html">Vector2D</A> v)</CODE><BR> Returns the result of subtracting a two-dimensional vector from a two-dimensional point.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>⌨️ 快捷键说明
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