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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 11:50:53 PDT 2002 --><TITLE>: Class Matrix</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/Matrix.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/std/image/ImageSequenceDataSource.html"><B>PREV CLASS</B></A> <A HREF="../../../quicktime/std/image/NearestPointInfo.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="Matrix.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <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">quicktime.std.image</FONT><BR>Class Matrix</H2><PRE>java.lang.Object | +--<A HREF="../../../quicktime/util/QTByteObject.html">quicktime.util.QTByteObject</A> | +--<B>quicktime.std.image.Matrix</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>java.lang.Cloneable, <A HREF="../../../quicktime/jdirect/InterfaceLib.html">InterfaceLib</A>, <A HREF="../../../quicktime/jdirect/PrimitivesLib.html">PrimitivesLib</A>, <A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A>, java.io.Serializable, <A HREF="../../../quicktime/jdirect/SharedLibrary.html">SharedLibrary</A>, com.apple.jdirect.SharedLibrary</DD></DL><HR><DL><DT>public final class <B>Matrix</B><DT>extends <A HREF="../../../quicktime/util/QTByteObject.html">QTByteObject</A><DT>implements <A HREF="../../../quicktime/jdirect/QuickTimeLib.html">QuickTimeLib</A>, java.lang.Cloneable</DL><P>A Matrix defines how to map points from one coordinate space into another coordinate space.<P><DL><DT><B>See Also: </B><DD><A HREF="../../../serialized-form.html#quicktime.std.image.Matrix">Serialized Form</A></DL><HR><P><!-- ======== INNER 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>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#kNativeSize">kNativeSize</A></B></CODE><BR> This is the size (the number of bytes) that are required for this class</TD></TR></TABLE> <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> <!-- ======== 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="../../../quicktime/std/image/Matrix.html#Matrix()">Matrix</A></B>()</CODE><BR> Construct an instance of a Matrix, with default settings of the identity Matrix</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#Matrix(float[][])">Matrix</A></B>(float[][] table)</CODE><BR> Construct an instance of a Matrix from the values of a float[][], which is a 3x3 table, - an array of row values.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#Matrix(quicktime.qd.QDPoint[], quicktime.qd.QDPoint[])">Matrix</A></B>(<A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A>[] source, <A HREF="../../../quicktime/qd/QDPoint.html">QDPoint</A>[] dest)</CODE><BR> Construct a Matrix that is a delta matrix between the two sets of 4 points.</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> java.lang.Object</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#clone()">clone</A></B>()</CODE><BR> copies the contents of the one matrix into another matrix.</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="../../../quicktime/std/image/Matrix.html#concat(quicktime.std.image.Matrix)">concat</A></B>(<A HREF="../../../quicktime/std/image/Matrix.html">Matrix</A> b)</CODE><BR> Concatenates two matrices, combining the transformations described by both matrices into a single matrix.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../quicktime/std/image/Matrix.html">Matrix</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#copy()">copy</A></B>()</CODE><BR> copies the contents of the one matrix into another matrix.</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="../../../quicktime/std/image/Matrix.html#equals(quicktime.std.image.Matrix)">equals</A></B>(<A HREF="../../../quicktime/std/image/Matrix.html">Matrix</A> m)</CODE><BR> Compares the contents of a matrix for Equality.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getB()">getB</A></B>()</CODE><BR> Gets the b value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getC()">getC</A></B>()</CODE><BR> Gets the c value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getSx()">getSx</A></B>()</CODE><BR> Gets the X axis scale amount.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getSy()">getSy</A></B>()</CODE><BR> Gets the Y axis scale amount.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getTx()">getTx</A></B>()</CODE><BR> Gets the X axis translation amount.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getTy()">getTy</A></B>()</CODE><BR> Get the Y axis translation amount.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> short</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getType()">getType</A></B>()</CODE><BR> Obtains information about the matrix.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getU()">getU</A></B>()</CODE><BR> Gets the u value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getV()">getV</A></B>()</CODE><BR> Gets the v value.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../quicktime/std/image/Matrix.html#getW()">getW</A></B>()</CODE><BR> Gets the w value.</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="../../../quicktime/std/image/Matrix.html#inverse(quicktime.std.image.Matrix)">inverse</A></B>(<A HREF="../../../quicktime/std/image/Matrix.html">Matrix</A> mr)</CODE><BR> creates a new matrix that is the inverse of a specified matrix.</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="../../../quicktime/std/image/Matrix.html#isIdentity()">isIdentity</A></B>()</CODE><BR> Returns true if the matrix is an identity matrix otherwise false</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="../../../quicktime/std/image/Matrix.html#map(quicktime.qd.QDRect, quicktime.qd.QDRect)">map</A></B>(<A HREF="../../../quicktime/qd/QDRect.html">QDRect</A> fromRect, <A HREF="../../../quicktime/qd/QDRect.html">QDRect</A> toRect)</CODE><BR> alters an existing matrix so that it defines a transformation from one rectangle to another.</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="../../../quicktime/std/image/Matrix.html#rect(quicktime.qd.QDRect, quicktime.qd.QDRect)">rect</A></B>(<A HREF="../../../quicktime/qd/QDRect.html">QDRect</A> srcRect, <A HREF="../../../quicktime/qd/QDRect.html">QDRect</A> dstRect)</CODE><BR> creates a matrix that performs a translate and scale operation as described by the relationship between two rectangles.</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="../../../quicktime/std/image/Matrix.html#rotate(float, float, float)">rotate</A></B>(float degrees, float aboutX, float aboutY)</CODE><BR> modifies the contents of a matrix so that is defines a rotation operation.</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="../../../quicktime/std/image/Matrix.html#scale(float, float, float, float)">scale</A></B>(float scaleX, float scaleY, float aboutX, float aboutY)</CODE><BR>⌨️ 快捷键说明
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