geodeticcalculator.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 11:36:19 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>GeodeticCalculator (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.referencing.GeodeticCalculator class"><META NAME="keywords" CONTENT="getCoordinateReferenceSystem()"><META NAME="keywords" CONTENT="getGeographicCRS()"><META NAME="keywords" CONTENT="getEllipsoid()"><META NAME="keywords" CONTENT="setAnchorPoint()"><META NAME="keywords" CONTENT="setStartingGeographicPoint()"><META NAME="keywords" CONTENT="setAnchorPosition()"><META NAME="keywords" CONTENT="setStartingPosition()"><META NAME="keywords" CONTENT="getAnchorPoint()"><META NAME="keywords" CONTENT="getStartingGeographicPoint()"><META NAME="keywords" CONTENT="getAnchorPosition()"><META NAME="keywords" CONTENT="getStartingPosition()"><META NAME="keywords" CONTENT="setDestinationPoint()"><META NAME="keywords" CONTENT="setDestinationGeographicPoint()"><META NAME="keywords" CONTENT="setDestinationPosition()"><META NAME="keywords" CONTENT="getDestinationPoint()"><META NAME="keywords" CONTENT="getDestinationGeographicPoint()"><META NAME="keywords" CONTENT="getDestinationPosition()"><META NAME="keywords" CONTENT="setDirection()"><META NAME="keywords" CONTENT="getAzimuth()"><META NAME="keywords" CONTENT="getOrthodromicDistance()"><META NAME="keywords" CONTENT="getMeridianArcLength()"><META NAME="keywords" CONTENT="getGeodeticCurve()"><META NAME="keywords" CONTENT="toString()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){    parent.document.title="GeodeticCalculator (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/GeodeticCalculator.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/FactoryFinder.html" title="class in org.geotools.referencing"><B>PREV CLASS</B></A>&nbsp;&nbsp;<A HREF="../../../org/geotools/referencing/NamedIdentifier.html" title="class in org.geotools.referencing"><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="GeodeticCalculator.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;FIELD&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;FIELD&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</FONT><BR>Class GeodeticCalculator</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"><B>GeodeticCalculator</B></PRE><HR><DL><DT>public class <B>GeodeticCalculator</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL><P>Performs geodetic calculations on an ellipsoid. This class encapsulates a generic ellipsoid and calculates the following properties: <p> <ul>   <li>Distance and azimuth between two points.</li>   <li>Point located at a given distance and azimuth from an other point.</li> </ul> <p> The calculation use the following informations: <p> <ul>   <li>The <A HREF="../../../org/geotools/referencing/GeodeticCalculator.html#setStartingPosition(org.opengis.spatialschema.geometry.geometry.Position)">starting position</A>, which is always considered valid.       It is initially set at (0,0) and can only be changed to another legitimate value.</li>   <li><strong>Only one</strong> of the following:       <ul>         <li>The <A HREF="../../../org/geotools/referencing/GeodeticCalculator.html#setDestinationPosition(org.opengis.spatialschema.geometry.geometry.Position)">destination position</A>, or</li>         <li>An <A HREF="../../../org/geotools/referencing/GeodeticCalculator.html#setDirection(double, double)">azimuth and distance</A>.</li>       </ul>       The latest one set overrides the other and determines what will be calculated.</li> </ul> <p> Note: This class is not thread-safe. If geodetic calculations are needed in a multi-threads environment, create one distinct instance of  for each thread.<P><P><DL><DT><B>Since:</B></DT>  <DD>2.1</DD><DT><B>Author:</B></DT>  <DD>Daniele Franzoni, Martin Desruisseaux</DD><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/GeodeticCalculator.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== 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/GeodeticCalculator.html#GeodeticCalculator()">GeodeticCalculator</A></B>()</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a new geodetic calculator associated with the WGS84 ellipsoid.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/geotools/referencing/GeodeticCalculator.html#GeodeticCalculator(org.opengis.referencing.crs.CoordinateReferenceSystem)">GeodeticCalculator</A></B>(CoordinateReferenceSystem&nbsp;crs)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a new geodetic calculator expecting coordinates in the supplied CRS. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../org/geotools/referencing/GeodeticCalculator.html#GeodeticCalculator(org.opengis.referencing.datum.Ellipsoid)">GeodeticCalculator</A></B>(Ellipsoid&nbsp;ellipsoid)</CODE><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a new geodetic calculator associated with the specified ellipsoid. </TD></TR></TABLE>&nbsp;<!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A>

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