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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>DefaultPrimeMeridian (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.referencing.datum.DefaultPrimeMeridian class"><META NAME="keywords" CONTENT="GREENWICH"><META NAME="keywords" CONTENT="getGreenwichLongitude()"><META NAME="keywords" CONTENT="getAngularUnit()"><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="DefaultPrimeMeridian (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/DefaultPrimeMeridian.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/datum/DefaultImageDatum.html" title="class in org.geotools.referencing.datum"><B>PREV CLASS</B></A> <A HREF="../../../../org/geotools/referencing/datum/DefaultTemporalDatum.html" title="class in org.geotools.referencing.datum"><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="DefaultPrimeMeridian.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="#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><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.geotools.referencing.datum</FONT><BR>Class DefaultPrimeMeridian</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"><B>DefaultPrimeMeridian</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>IdentifiedObject, PrimeMeridian, <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><HR><DL><DT>public class <B>DefaultPrimeMeridian</B><DT>extends <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html" title="class in org.geotools.referencing">AbstractIdentifiedObject</A><DT>implements PrimeMeridian</DL><P>A prime meridian defines the origin from which longitude values are determined. The <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getName()"><CODE>name</CODE></A> initial value is "Greenwich", and that value shall be used when the <A HREF="../../../../org/geotools/referencing/datum/DefaultPrimeMeridian.html#getGreenwichLongitude()">greenwich longitude</A> value is zero.<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.datum.DefaultPrimeMeridian">Serialized Form</A><DT><B>Module:</B></DT><DD><CODE><B>module/referencing</B></CODE> (<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/datum/DefaultPrimeMeridian.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 <A HREF="../../../../org/geotools/referencing/datum/DefaultPrimeMeridian.html" title="class in org.geotools.referencing.datum">DefaultPrimeMeridian</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultPrimeMeridian.html#GREENWICH">GREENWICH</A></B></CODE><BR> The Greenwich meridian, with angular measurements in decimal degrees.</TD></TR></TABLE> <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> <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> <!-- ======== 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><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultPrimeMeridian.html#DefaultPrimeMeridian(java.util.Map, double, javax.units.Unit)">DefaultPrimeMeridian</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Map.html" title="class or interface in java.util">Map</A> properties, double greenwichLongitude, <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">Unit</A> angularUnit)</CODE><BR> Constructs a prime meridian from a set of properties. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultPrimeMeridian.html#DefaultPrimeMeridian(org.opengis.referencing.datum.PrimeMeridian)">DefaultPrimeMeridian</A></B>(PrimeMeridian meridian)</CODE><BR> Constructs a new prime meridian with the same values than the specified one. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultPrimeMeridian.html#DefaultPrimeMeridian(java.lang.String, double)">DefaultPrimeMeridian</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> name, double greenwichLongitude)</CODE>⌨️ 快捷键说明
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