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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>EarthGravitationalModel (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.referencing.operation.transform.EarthGravitationalModel class"><META NAME="keywords" CONTENT="load()"><META NAME="keywords" CONTENT="heightOffset()"><META NAME="keywords" CONTENT="getParameterDescriptors()"><META NAME="keywords" CONTENT="getParameterValues()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="EarthGravitationalModel (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/EarthGravitationalModel.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/transform/DimensionFilter.html" title="class in org.geotools.referencing.operation.transform"><B>PREV CLASS</B></A> <A HREF="../../../../../org/geotools/referencing/operation/transform/EarthGravitationalModel.Provider.html" title="class in org.geotools.referencing.operation.transform"><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="EarthGravitationalModel.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: <A HREF="#nested_class_summary">NESTED</A> | 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><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.geotools.referencing.operation.transform</FONT><BR>Class EarthGravitationalModel</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/operation/transform/AbstractMathTransform.html" title="class in org.geotools.referencing.operation.transform">AbstractMathTransform</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by"><A HREF="../../../../../org/geotools/referencing/operation/transform/VerticalTransform.html" title="class in org.geotools.referencing.operation.transform">VerticalTransform</A> <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by"><B>EarthGravitationalModel</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD>MathTransform</DD></DL><HR><DL><DT>public final class <B>EarthGravitationalModel</B><DT>extends <A HREF="../../../../../org/geotools/referencing/operation/transform/VerticalTransform.html" title="class in org.geotools.referencing.operation.transform">VerticalTransform</A></DL><P>Transforms vertical coordinates using coefficients from the <A HREF="http://earth-info.nima.mil/GandG/wgs84/gravitymod/wgs84_180/wgs84_180.html">Earth Gravitational Model</A>. <p> <strong>Aknowledgement</strong><br> This class is an adaption of Fortran code <code><a href="http://earth-info.nga.mil/GandG/wgs84/gravitymod/wgs84_180/clenqt.for">clenqt.for</a></code> from the <cite>National Geospatial-Intelligence Agency</cite> and available in public domain. The <cite>normalized geopotential coefficients</cite> file bundled in this module is an adaptation of <code><a href="http://earth-info.nima.mil/GandG/wgs84/gravitymod/wgs84_180/egm180.nor">egm180.nor</a></code> file, with some spaces trimmed.<P><P><DL><DT><B>Since:</B></DT> <DD>2.3</DD><DT><B>Author:</B></DT> <DD>Pierre Cardinal, Martin Desruisseaux</DD><DT><B>Module:</B></DT><DD><CODE><B>plugin/referencing3D</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-referencing3D/"><CODE>gt2-referencing3D.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/referencing3D/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/plugin/referencing3D/src/org/geotools/referencing/operation/transform/EarthGravitationalModel.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><A NAME="nested_class_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Nested Class Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static class</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/referencing/operation/transform/EarthGravitationalModel.Provider.html" title="class in org.geotools.referencing.operation.transform">EarthGravitationalModel.Provider</A></B></CODE><BR> The provider for <A HREF="../../../../../org/geotools/referencing/operation/transform/EarthGravitationalModel.html" title="class in org.geotools.referencing.operation.transform"><CODE>EarthGravitationalModel</CODE></A>.</TD></TR></TABLE> <A NAME="nested_classes_inherited_from_class_org.geotools.referencing.operation.transform.AbstractMathTransform"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Nested classes inherited from class <A HREF="../../../../../org/geotools/referencing/operation/transform/AbstractMathTransform.html" title="class in org.geotools.referencing.operation.transform">AbstractMathTransform</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../../org/geotools/referencing/operation/transform/AbstractMathTransform.Inverse.html" title="class in org.geotools.referencing.operation.transform">AbstractMathTransform.Inverse</A></CODE></TD></TR></TABLE> <!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><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> ParameterDescriptorGroup</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/referencing/operation/transform/EarthGravitationalModel.html#getParameterDescriptors()">getParameterDescriptors</A></B>()</CODE><BR> Returns the parameter descriptors for this math transform.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> ParameterValueGroup</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/referencing/operation/transform/EarthGravitationalModel.html#getParameterValues()">getParameterValues</A></B>()</CODE><BR> Returns the parameters for this math transform.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/referencing/operation/transform/EarthGravitationalModel.html#heightOffset(double, double, double)">heightOffset</A></B>(double longitude, double latitude, double height)</CODE><BR> Returns the value to add to a <cite>height above the ellipsoid</cite> in order to get a <cite>height above the geoid</cite> for the specified geographic coordinate.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../org/geotools/referencing/operation/transform/EarthGravitationalModel.html#load(java.lang.String)">load</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> filename)</CODE><BR> Loads the coefficients from the specified ASCII file and initialize the internal <cite>clenshaw arrays</cite>. </TD></TR>⌨️ 快捷键说明
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