defaultellipsoid.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indicates if the <A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html#getInverseFlattening()">inverse flattening</A> is definitive for
 this ellipsoid. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html#isSphere()">isSphere</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if the ellipsoid is degenerate and is actually a sphere. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html#orthodromicDistance(double, double, double, double)">orthodromicDistance</A></B>(double&nbsp;x1,
                    double&nbsp;y1,
                    double&nbsp;x2,
                    double&nbsp;y2)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the orthodromic distance between two geographic coordinates.
 </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html#orthodromicDistance(java.awt.geom.Point2D, java.awt.geom.Point2D)">orthodromicDistance</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/geom/Point2D.html" title="class or interface in java.awt.geom">Point2D</A>&nbsp;P1,
                    <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/geom/Point2D.html" title="class or interface in java.awt.geom">Point2D</A>&nbsp;P2)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the orthodromic distance between two geographic coordinates.
 </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html" title="class in org.geotools.referencing.datum">DefaultEllipsoid</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html#wrap(org.opengis.referencing.datum.Ellipsoid)">wrap</A></B>(Ellipsoid&nbsp;ellipsoid)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Wraps an arbitrary ellipsoid into a Geotools implementation. </TD>
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</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_AbstractIdentifiedObject"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods 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#asSet(java.lang.Object[])">asSet</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#ensureAngularUnit(javax.units.Unit)">ensureAngularUnit</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#ensureLinearUnit(javax.units.Unit)">ensureLinearUnit</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#ensureNonNull(java.lang.String, java.lang.Object)">ensureNonNull</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#ensureNonNull(java.lang.String, java.lang.Object[], int)">ensureNonNull</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#ensureTimeUnit(javax.units.Unit)">ensureTimeUnit</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#equals(java.util.Collection, java.util.Collection, boolean)">equals</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#equals(org.opengis.referencing.IdentifiedObject[], org.opengis.referencing.IdentifiedObject[], boolean)">equals</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#equals(org.opengis.referencing.IdentifiedObject, org.opengis.referencing.IdentifiedObject, boolean)">equals</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#equals(java.lang.Object)">equals</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getAlias()">getAlias</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getIdentifier(org.opengis.metadata.citation.Citation)">getIdentifier</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getIdentifier(org.opengis.referencing.IdentifiedObject, org.opengis.metadata.citation.Citation)">getIdentifier</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getIdentifiers()">getIdentifiers</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getName()">getName</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getName(org.opengis.metadata.citation.Citation)">getName</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getName(org.opengis.referencing.IdentifiedObject, org.opengis.metadata.citation.Citation)">getName</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getProperties(org.opengis.referencing.IdentifiedObject)">getProperties</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getProperties(org.opengis.referencing.IdentifiedObject, org.opengis.metadata.citation.Citation)">getProperties</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#getRemarks()">getRemarks</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#nameMatches(org.opengis.referencing.IdentifiedObject, java.lang.String)">nameMatches</A>, <A HREF="../../../../org/geotools/referencing/AbstractIdentifiedObject.html#nameMatches(java.lang.String)">nameMatches</A></CODE></TD>
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</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_Formattable"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class <A HREF="../../../../org/geotools/referencing/wkt/Formattable.html" title="class in org.geotools.referencing.wkt">Formattable</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../org/geotools/referencing/wkt/Formattable.html#toString()">toString</A>, <A HREF="../../../../org/geotools/referencing/wkt/Formattable.html#toWKT()">toWKT</A>, <A HREF="../../../../org/geotools/referencing/wkt/Formattable.html#toWKT(org.opengis.metadata.citation.Citation, int)">toWKT</A>, <A HREF="../../../../org/geotools/referencing/wkt/Formattable.html#toWKT(int)">toWKT</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_IdentifiedObject"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from interface IdentifiedObject</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>getAlias, getIdentifiers, getName, getRemarks, toWKT</CODE></TD>
</TR>
</TABLE>
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<P>

<!-- ============ FIELD DETAIL =========== -->

<A NAME="field_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TD COLSPAN=1><FONT SIZE="+2">
<B>Field Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="WGS84"><!-- --></A><H3>
WGS84</H3>
<PRE>
public static final <A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html" title="class in org.geotools.referencing.datum">DefaultEllipsoid</A> <B>WGS84</B></PRE>
<DL>
<DD>WGS 1984 ellipsoid with axis in <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/SI.html#METER" title="class or interface in javax.units">metres</A>. This ellipsoid is used
 in GPS systems and is the default for most  packages.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="GRS80"><!-- --></A><H3>
GRS80</H3>
<PRE>
public static final <A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html" title="class in org.geotools.referencing.datum">DefaultEllipsoid</A> <B>GRS80</B></PRE>
<DL>
<DD>GRS 80 ellipsoid with axis in <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/SI.html#METER" title="class or interface in javax.units">metres</A>.
<P>
<DL>
<DT><B>Since:</B></DT>
  <DD>2.2</DD>
</DL>
</DL>
<HR>

<A NAME="INTERNATIONAL_1924"><!-- --></A><H3>
INTERNATIONAL_1924</H3>
<PRE>
public static final <A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html" title="class in org.geotools.referencing.datum">DefaultEllipsoid</A> <B>INTERNATIONAL_1924</B></PRE>
<DL>
<DD>International 1924 ellipsoid with axis in <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/SI.html#METER" title="class or interface in javax.units">metres</A>.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="CLARKE_1866"><!-- --></A><H3>
CLARKE_1866</H3>
<PRE>
public static final <A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html" title="class in org.geotools.referencing.datum">DefaultEllipsoid</A> <B>CLARKE_1866</B></PRE>
<DL>
<DD>Clarke 1866 ellipsoid with axis in <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/SI.html#METER" title="class or interface in javax.units">metres</A>.
<P>
<DL>
<DT><B>Since:</B></DT>
  <DD>2.2</DD>
</DL>
</DL>
<HR>

<A NAME="SPHERE"><!-- --></A><H3>
SPHERE</H3>
<PRE>
public static final <A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html" title="class in org.geotools.referencing.datum">DefaultEllipsoid</A> <B>SPHERE</B></PRE>
<DL>
<DD>A sphere with a radius of 6371000 <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/SI.html#METER" title="class or interface in javax.units">metres</A>. Spheres use a simplier
 algorithm for <A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html#orthodromicDistance(java.awt.geom.Point2D, java.awt.geom.Point2D)">orthodromic distance computation</A>, which
 may be faster and more robust.
<P>
<DL>
</DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TD>
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</TABLE>

<A NAME="DefaultEllipsoid(org.opengis.referencing.datum.Ellipsoid)"><!-- --></A><H3>
DefaultEllipsoid</H3>
<PRE>
protected <B>DefaultEllipsoid</B>(Ellipsoid&nbsp;ellipsoid)</PRE>
<DL>
<DD>Constructs a new ellipsoid with the same values than the specified one.
 This copy constructor provides a way to wrap an arbitrary implementation into a
 Geotools one or a user-defined one (as a subclass), usually in order to leverage
 some implementation-specific API. This constructor performs a shallow copy,
 i.e. the properties are not cloned.
<P>
<DT><B>Since:</B></DT>
  <DD>2.2</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../org/geotools/referencing/datum/DefaultEllipsoid.html#wrap(org.opengis.referencing.datum.Ellipsoid)"><CODE>wrap(org.opengis.referencing.datum.Ellipsoid)</CODE></A></DL>
<HR>

<A NAME="DefaultEllipsoid(java.util.Map, double, double, double, boolean, javax.units.Unit)"><!-- --></A><H3>
DefaultEllipsoid</H3>