hints.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

<DT><B>Since:</B></DT>
  <DD>2.3</DD>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCSFactory(org.geotools.factory.Hints)"><CODE>FactoryFinder.getCSFactory(org.geotools.factory.Hints)</CODE></A>, 
<A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCRSFactory(org.geotools.factory.Hints)"><CODE>FactoryFinder.getCRSFactory(org.geotools.factory.Hints)</CODE></A>, 
<A HREF="../../../org/geotools/referencing/factory/OrderedAxisAuthorityFactory.html" title="class in org.geotools.referencing.factory"><CODE>OrderedAxisAuthorityFactory</CODE></A>, 
<A HREF="../../../org/geotools/referencing/factory/epsg/LongitudeFirstFactory.html" title="class in org.geotools.referencing.factory.epsg"><CODE>LongitudeFirstFactory</CODE></A>
<DT><B>Tutorial:</B></DT>
<DD><A HREF="http://docs.codehaus.org/display/GEOTOOLS/The+axis+order+issue">The axis order issue</A></DD>
</DL>
</DL>
<HR>

<A NAME="FORCE_STANDARD_AXIS_DIRECTIONS"><!-- --></A><H3>
FORCE_STANDARD_AXIS_DIRECTIONS</H3>
<PRE>
public static final <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A> <B>FORCE_STANDARD_AXIS_DIRECTIONS</B></PRE>
<DL>
<DD>Tells if the coordinate systems
 created by an authority factory
 should be forced to standard
 axis directions.
 If , then South axis
 directions are forced to North,
 West axis directions are forced to
 East, <cite>etc.</cite>
 If , then the axis directions are left unchanged.
 <p>
 This hint shall be passed to the
 <code><A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCRSAuthorityFactory(java.lang.String, org.geotools.factory.Hints)">FactoryFinder.getCRSAuthorityFactory</A>(...)</code>
 method. Whatever this hint is supported or not is authority dependent.
<P>
<DL>
<DT><B>Since:</B></DT>
  <DD>2.3</DD>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCSFactory(org.geotools.factory.Hints)"><CODE>FactoryFinder.getCSFactory(org.geotools.factory.Hints)</CODE></A>, 
<A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCRSFactory(org.geotools.factory.Hints)"><CODE>FactoryFinder.getCRSFactory(org.geotools.factory.Hints)</CODE></A>, 
<A HREF="../../../org/geotools/referencing/factory/OrderedAxisAuthorityFactory.html" title="class in org.geotools.referencing.factory"><CODE>OrderedAxisAuthorityFactory</CODE></A></DL>
</DL>
<HR>

<A NAME="FORCE_STANDARD_AXIS_UNITS"><!-- --></A><H3>
FORCE_STANDARD_AXIS_UNITS</H3>
<PRE>
public static final <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A> <B>FORCE_STANDARD_AXIS_UNITS</B></PRE>
<DL>
<DD>Tells if the coordinate systems
 created by an authority factory
 should be forced to standard
 axis units.
 If , then all angular units are forced to degrees and linear units to meters.
 If , then the axis units are left unchanged.
 <p>
 This hint shall be passed to the
 <code><A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCRSAuthorityFactory(java.lang.String, org.geotools.factory.Hints)">FactoryFinder.getCRSAuthorityFactory</A>(...)</code> method. Whatever this hint is
 supported or not is authority dependent.
<P>
<DL>
<DT><B>Since:</B></DT>
  <DD>2.3</DD>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCSFactory(org.geotools.factory.Hints)"><CODE>FactoryFinder.getCSFactory(org.geotools.factory.Hints)</CODE></A>, 
<A HREF="../../../org/geotools/referencing/FactoryFinder.html#getCRSFactory(org.geotools.factory.Hints)"><CODE>FactoryFinder.getCRSFactory(org.geotools.factory.Hints)</CODE></A>, 
<A HREF="../../../org/geotools/referencing/factory/OrderedAxisAuthorityFactory.html" title="class in org.geotools.referencing.factory"><CODE>OrderedAxisAuthorityFactory</CODE></A></DL>
</DL>
<HR>

<A NAME="IGNORE_COVERAGE_OVERVIEW"><!-- --></A><H3>
IGNORE_COVERAGE_OVERVIEW</H3>
<PRE>
public static final <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A> <B>IGNORE_COVERAGE_OVERVIEW</B></PRE>
<DL>
<DD>Tells to the <CODE>GridCoverageReader</CODE> instances to ignore the built-in
 overviews when creating a <CODE>GridCoverage</CODE> object during a read. This
 hints also implied that no decimation on reading is performed.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="REPLACE_NON_GEOPHYSICS_VIEW"><!-- --></A><H3>
REPLACE_NON_GEOPHYSICS_VIEW</H3>
<PRE>
public static final <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A> <B>REPLACE_NON_GEOPHYSICS_VIEW</B></PRE>
<DL>
<DD>Some operation when called on a <CODE>GridCoverage</CODE> that is the non-geophysics
 view of another <CODE>GridCoverage</CODE> try to go back to the latter before executing
 even if they could execute fine without doing so. The rationale behind this is that 
 the non-geophysics view is just the rendered version of a coverage, hence operations
 should be applied onto the geophysics companion.
 
 However, in some cases like when doing pure rendering, we might want to force this 
 operations to work on the non-geophysics view directly, even performing color expansions
 as needed. This can be accomplished by settng this hint to true.
<P>
<DL>
</DL>
</DL>

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<A NAME="Hints(java.util.Map)"><!-- --></A><H3>
Hints</H3>
<PRE>
public <B>Hints</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>&nbsp;hints)</PRE>
<DL>
<DD>Constructs a new object with keys and values initialized from the
 specified map (which may be null).
<P>
<DT><B>Parameters:</B><DD><CODE>hints</CODE> - A map of key/value pairs to initialize the hints, or
             if the object should be empty.</DL>
<HR>

<A NAME="Hints(java.awt.RenderingHints.Key, java.lang.Object)"><!-- --></A><H3>
Hints</H3>
<PRE>
public <B>Hints</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.Key.html" title="class or interface in java.awt">RenderingHints.Key</A>&nbsp;key,
             <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;value)</PRE>
<DL>
<DD>Constructs a new object with the specified key/value pair.
<P>
<DT><B>Parameters:</B><DD><CODE>key</CODE> - The key of the particular hint property.<DD><CODE>value</CODE> - The value of the hint property specified with .</DL>

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