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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 11:36:19 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>AbstractDerivedCRS (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.referencing.crs.AbstractDerivedCRS class"><META NAME="keywords" CONTENT="_COMPARING"><META NAME="keywords" CONTENT="baseCRS"><META NAME="keywords" CONTENT="conversionFromBase"><META NAME="keywords" CONTENT="getBaseCRS()"><META NAME="keywords" CONTENT="getConversionFromBase()"><META NAME="keywords" CONTENT="equals()"><META NAME="keywords" CONTENT="hashCode()"><META NAME="keywords" CONTENT="formatWKT()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){    parent.document.title="AbstractDerivedCRS (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>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/AbstractDerivedCRS.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>  </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">&nbsp;<A HREF="../../../../org/geotools/referencing/crs/AbstractCRS.html" title="class in org.geotools.referencing.crs"><B>PREV CLASS</B></A>&nbsp;&nbsp;<A HREF="../../../../org/geotools/referencing/crs/AbstractSingleCRS.html" title="class in org.geotools.referencing.crs"><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>  &nbsp;&nbsp;<A HREF="AbstractDerivedCRS.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;&nbsp;<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:&nbsp;NESTED&nbsp;|&nbsp;<A HREF="#field_summary">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL:&nbsp;<A HREF="#field_detail">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<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">org.geotools.referencing.crs</FONT><BR>Class AbstractDerivedCRS</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/wkt/Formattable.html" title="class in org.geotools.referencing.wkt">Formattable</A>      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html" title="class in org.geotools.referencing">AbstractIdentifiedObject</A>          <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../org/geotools/referencing/AbstractReferenceSystem.html" title="class in org.geotools.referencing">AbstractReferenceSystem</A>              <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../org/geotools/referencing/crs/AbstractCRS.html" title="class in org.geotools.referencing.crs">AbstractCRS</A>                  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../org/geotools/referencing/crs/AbstractSingleCRS.html" title="class in org.geotools.referencing.crs">AbstractSingleCRS</A>                      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><B>AbstractDerivedCRS</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>CoordinateReferenceSystem, GeneralDerivedCRS, IdentifiedObject, ReferenceSystem, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A>, SingleCRS</DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../org/geotools/referencing/crs/DefaultDerivedCRS.html" title="class in org.geotools.referencing.crs">DefaultDerivedCRS</A>, <A HREF="../../../../org/geotools/referencing/crs/DefaultProjectedCRS.html" title="class in org.geotools.referencing.crs">DefaultProjectedCRS</A></DD></DL><HR><DL><DT>public class <B>AbstractDerivedCRS</B><DT>extends <A HREF="../../../../org/geotools/referencing/crs/AbstractSingleCRS.html" title="class in org.geotools.referencing.crs">AbstractSingleCRS</A><DT>implements GeneralDerivedCRS</DL><P>A coordinate reference system that is defined by its coordinate conversion from another coordinate reference system (not by a datum). <p> This class is conceptually <cite>abstract</cite>, even if it is technically possible to instantiate it. Typical applications should create instances of the most specific subclass with  prefix instead. An exception to this rule may occurs when it is not possible to identify the exact type.<P><P><DL><DT><B>Since:</B></DT>  <DD>2.1</DD><DT><B>Author:</B></DT>  <DD>Martin Desruisseaux</DD><DT><B>See Also:</B><DD><A HREF="../../../../serialized-form.html#org.geotools.referencing.crs.AbstractDerivedCRS">Serialized Form</A><DT><B>Module:</B></DT><DD><CODE><B>module/referencing</B></CODE> &nbsp; (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-referencing/"><CODE>gt2-referencing.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/referencing/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/module/referencing/src/org/geotools/referencing/crs/AbstractDerivedCRS.java">SVN head</A>)</DD></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>static&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/ThreadLocal.html" title="class or interface in java.lang">ThreadLocal</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/referencing/crs/AbstractDerivedCRS.html#_COMPARING">_COMPARING</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A lock for avoiding never-ending recursivity in the  method. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected &nbsp;CoordinateReferenceSystem</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/referencing/crs/AbstractDerivedCRS.html#baseCRS">baseCRS</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The base coordinate reference system.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected &nbsp;Conversion</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/referencing/crs/AbstractDerivedCRS.html#conversionFromBase">conversionFromBase</A></B></CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The conversion from the <A HREF="../../../../org/geotools/referencing/crs/AbstractDerivedCRS.html#getBaseCRS()">base CRS</A> to this CRS.</TD></TR></TABLE>&nbsp;<A NAME="fields_inherited_from_class_AbstractSingleCRS"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class <A HREF="../../../../org/geotools/referencing/crs/AbstractSingleCRS.html" title="class in org.geotools.referencing.crs">AbstractSingleCRS</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/geotools/referencing/crs/AbstractSingleCRS.html#datum">datum</A></CODE></TD></TR></TABLE>&nbsp;<A NAME="fields_inherited_from_class_AbstractCRS"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class <A HREF="../../../../org/geotools/referencing/crs/AbstractCRS.html" title="class in org.geotools.referencing.crs">AbstractCRS</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/geotools/referencing/crs/AbstractCRS.html#coordinateSystem">coordinateSystem</A></CODE></TD></TR></TABLE>&nbsp;<A NAME="fields_inherited_from_class_AbstractIdentifiedObject"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html" title="class in org.geotools.referencing">AbstractIdentifiedObject</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#EMPTY_ALIAS_ARRAY">EMPTY_ALIAS_ARRAY</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#EMPTY_IDENTIFIER_ARRAY">EMPTY_IDENTIFIER_ARRAY</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#IDENTIFIER_COMPARATOR">IDENTIFIER_COMPARATOR</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#NAME_COMPARATOR">NAME_COMPARATOR</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#REMARKS_COMPARATOR">REMARKS_COMPARATOR</A></CODE></TD></TR></TABLE>&nbsp;<A NAME="fields_inherited_from_class_ReferenceSystem"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface ReferenceSystem</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>SCOPE_KEY, VALID_AREA_KEY</CODE></TD></TR></TABLE>&nbsp;<A NAME="fields_inherited_from_class_IdentifiedObject"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from interface IdentifiedObject</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>ALIAS_KEY, IDENTIFIERS_KEY, NAME_KEY, REMARKS_KEY</CODE></TD></TR></TABLE>&nbsp;<!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/referencing/crs/AbstractDerivedCRS.html#AbstractDerivedCRS(org.opengis.referencing.crs.GeneralDerivedCRS)">AbstractDerivedCRS</A></B>(GeneralDerivedCRS&nbsp;crs)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a new derived CRS with the same values than the specified one.

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