mathtransformprovider.delegate.html
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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 1.4.2_13) on Tue Jun 05 11:36:20 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>MathTransformProvider.Delegate (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.referencing.operation.MathTransformProvider.Delegate class"><META NAME="keywords" CONTENT="method"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="MathTransformProvider.Delegate (Geotools 2.3.x 2.3.2 API)";}</SCRIPT></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=3 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="class-use/MathTransformProvider.Delegate.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="../../../../org/geotools/referencing/operation/MathTransformProvider.html" title="class in org.geotools.referencing.operation"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="MathTransformProvider.Delegate.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="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#methods_inherited_from_class_MathTransformProxy">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> | METHOD</FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.geotools.referencing.operation</FONT><BR>Class MathTransformProvider.Delegate</H2><PRE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../org/geotools/referencing/operation/transform/MathTransformProxy.html" title="class in org.geotools.referencing.operation.transform">MathTransformProxy</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>MathTransformProvider.Delegate</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>MathTransform, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A></DD></DL><DL><DT><B>Enclosing class:</B><DD><A HREF="../../../../org/geotools/referencing/operation/MathTransformProvider.html" title="class in org.geotools.referencing.operation">MathTransformProvider</A></DD></DL><HR><DL><DT>protected static final class <B>MathTransformProvider.Delegate</B><DT>extends <A HREF="../../../../org/geotools/referencing/operation/transform/MathTransformProxy.html" title="class in org.geotools.referencing.operation.transform">MathTransformProxy</A></DL><P>The result of a call to <A HREF="../../../../org/geotools/referencing/operation/MathTransformProvider.html#createMathTransform(org.opengis.parameter.ParameterValueGroup)"><CODE>createMathTransform</CODE></A>. This class encapsulates a reference to the <A HREF="../../../../org/geotools/referencing/operation/MathTransformProvider.Delegate.html#method">originating provider</A> as well as the <A HREF="../../../../org/geotools/referencing/operation/transform/MathTransformProxy.html#transform">created math transform</A>. This information is needed when a provider delegates the work to an other provider according the parameter values. For example a generic instance of <A HREF="../../../../org/geotools/referencing/operation/transform/ProjectiveTransform.ProviderAffine.html" title="class in org.geotools.referencing.operation.transform"><CODE>ProviderAffine</CODE></A> may delegates the creation of an <cite>affine transform</cite> to an other instance with <cite>source</cite> and <cite>target</cite> dimensions matching the supplied parameters, because those dimensions determine the set of legal <code>"elt_<var>j</var>_<var>i</var>"</code> parameters. <p> Most <A HREF="../../../../org/geotools/referencing/operation/MathTransformProvider.html" title="class in org.geotools.referencing.operation">math transform provider</A> do not delegate their work to an other one, and consequently do not need this class. <p> Future Geotools version may extends this class for handling more information than just the <A HREF="../../../../org/geotools/referencing/operation/transform/MathTransformProxy.html#transform">transform</A> creator. This class is more convenient than adding new methods right into <A HREF="../../../../org/geotools/referencing/operation/MathTransformProvider.html" title="class in org.geotools.referencing.operation"><CODE>MathTransformProvider</CODE></A>, because it is sometime difficult for a provider to infer all the conditions prevaling when <A HREF="../../../../org/geotools/referencing/operation/MathTransformProvider.html#createMathTransform(org.opengis.parameter.ParameterValueGroup)"><CODE>createMathTransform</CODE></A> was executed. Furthermore, it avoid to pollute with methods unused for the vast majority of providers.<P><P><DL><DT><B>Since:</B></DT> <DD>2.2</DD><DT><B>Author:</B></DT> <DD>Martin Desruisseaux</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#org.geotools.referencing.operation.MathTransformProvider.Delegate">Serialized Form</A></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><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> OperationMethod</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/referencing/operation/MathTransformProvider.Delegate.html#method">method</A></B></CODE><BR> The provider for the <A HREF="../../../../org/geotools/referencing/operation/transform/MathTransformProxy.html#transform">transform</A>.</TD></TR></TABLE>⌨️ 快捷键说明
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