abstractgridcoverage2dreader.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>Parameters:</B><DD><CODE>image</CODE> - contains the data for the coverage to create.<DD><CODE>raster2Model</CODE> - is the <CODE>MathTransform</CODE> that maps from the 
 		  raster space to the model space.
<DT><B>Returns:</B><DD>a <CODE>GridCoverage</CODE>
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getResolution(org.geotools.geometry.GeneralEnvelope, java.awt.geom.Rectangle2D, org.opengis.referencing.crs.CoordinateReferenceSystem)"><!-- --></A><H3>
getResolution</H3>
<PRE>
protected final double[] <B>getResolution</B>(<A HREF="../../../../../org/geotools/geometry/GeneralEnvelope.html" title="class in org.geotools.geometry">GeneralEnvelope</A>&nbsp;envelope,
                                       <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/geom/Rectangle2D.html" title="class or interface in java.awt.geom">Rectangle2D</A>&nbsp;dim,
                                       CoordinateReferenceSystem&nbsp;crs)
                                throws <A HREF="../../../../../org/geotools/data/DataSourceException.html" title="class in org.geotools.data">DataSourceException</A></PRE>
<DL>
<DD>This method is responsible for computing the resolutions in for the
 provided grid geometry in the provided crs.
 
 <P>
 It is worth to note that the returned resolution array is of length of 2
 and it always is lon, lat for the moment.<br>
 It might be worth to remove the axes reordering code when we are
 confident enough with the code to handle the north-up crs.
 <p>
 TODO use orthodromic distance?
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>envelope</CODE> - the GeneralEnvelope<DD><CODE>dim</CODE> - <DD><CODE>crs</CODE> - 
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../../org/geotools/data/DataSourceException.html" title="class in org.geotools.data">DataSourceException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getCrs()"><!-- --></A><H3>
getCrs</H3>
<PRE>
public final CoordinateReferenceSystem <B>getCrs</B>()</PRE>
<DL>
<DD>Retrieves the <CODE>CoordinateReferenceSystem</CODE> for dataset pointed by
 this <A HREF="../../../../../org/geotools/data/coverage/grid/AbstractGridCoverage2DReader.html" title="class in org.geotools.data.coverage.grid"><CODE>AbstractGridCoverage2DReader</CODE></A>.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the <CODE>CoordinateReferenceSystem</CODE> for dataset pointed by this
         <A HREF="../../../../../org/geotools/data/coverage/grid/AbstractGridCoverage2DReader.html" title="class in org.geotools.data.coverage.grid"><CODE>AbstractGridCoverage2DReader</CODE></A>.</DL>
</DD>
</DL>
<HR>

<A NAME="getOriginalGridRange()"><!-- --></A><H3>
getOriginalGridRange</H3>
<PRE>
public final <A HREF="../../../../../org/geotools/coverage/grid/GeneralGridRange.html" title="class in org.geotools.coverage.grid">GeneralGridRange</A> <B>getOriginalGridRange</B>()</PRE>
<DL>
<DD>Retrieves the <A HREF="../../../../../org/geotools/coverage/grid/GeneralGridRange.html" title="class in org.geotools.coverage.grid"><CODE>GeneralGridRange</CODE></A> that represents the raster grid
 dimensions of the highest resolution level in this dataset.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the <A HREF="../../../../../org/geotools/coverage/grid/GeneralGridRange.html" title="class in org.geotools.coverage.grid"><CODE>GeneralGridRange</CODE></A> that represents the raster grid
         dimensions of the highest resolution level in this dataset.</DL>
</DD>
</DL>
<HR>

<A NAME="getOriginalEnvelope()"><!-- --></A><H3>
getOriginalEnvelope</H3>
<PRE>
public final <A HREF="../../../../../org/geotools/geometry/GeneralEnvelope.html" title="class in org.geotools.geometry">GeneralEnvelope</A> <B>getOriginalEnvelope</B>()</PRE>
<DL>
<DD>Retrieves the <A HREF="../../../../../org/geotools/geometry/GeneralEnvelope.html" title="class in org.geotools.geometry"><CODE>GeneralEnvelope</CODE></A> for this
 <A HREF="../../../../../org/geotools/data/coverage/grid/AbstractGridCoverage2DReader.html" title="class in org.geotools.data.coverage.grid"><CODE>AbstractGridCoverage2DReader</CODE></A>.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the <A HREF="../../../../../org/geotools/geometry/GeneralEnvelope.html" title="class in org.geotools.geometry"><CODE>GeneralEnvelope</CODE></A> for this
         <A HREF="../../../../../org/geotools/data/coverage/grid/AbstractGridCoverage2DReader.html" title="class in org.geotools.data.coverage.grid"><CODE>AbstractGridCoverage2DReader</CODE></A>.</DL>
</DD>
</DL>
<HR>

<A NAME="getSource()"><!-- --></A><H3>
getSource</H3>
<PRE>
public final <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>getSource</B>()</PRE>
<DL>
<DD>Retrieves the source for this <A HREF="../../../../../org/geotools/data/coverage/grid/AbstractGridCoverage2DReader.html" title="class in org.geotools.data.coverage.grid"><CODE>AbstractGridCoverage2DReader</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getSource</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the source for this <A HREF="../../../../../org/geotools/data/coverage/grid/AbstractGridCoverage2DReader.html" title="class in org.geotools.data.coverage.grid"><CODE>AbstractGridCoverage2DReader</CODE></A>.</DL>
</DD>
</DL>
<HR>

<A NAME="dispose()"><!-- --></A><H3>
dispose</H3>
<PRE>
public void <B>dispose</B>()</PRE>
<DL>
<DD>Disposes this reader.
 
 <p>
 This method just tries to close the underlying <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/imageio/stream/ImageInputStream.html" title="class or interface in javax.imageio.stream"><CODE>ImageInputStream</CODE></A>.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>dispose</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="skip()"><!-- --></A><H3>
skip</H3>
<PRE>
public void <B>skip</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>skip</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>GridCoverageReader.skip()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="hasMoreGridCoverages()"><!-- --></A><H3>
hasMoreGridCoverages</H3>
<PRE>
public boolean <B>hasMoreGridCoverages</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>hasMoreGridCoverages</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>GridCoverageReader.hasMoreGridCoverages()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="listSubNames()"><!-- --></A><H3>
listSubNames</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[] <B>listSubNames</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>listSubNames</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>GridCoverageReader.listSubNames()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getCurrentSubname()"><!-- --></A><H3>
getCurrentSubname</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>getCurrentSubname</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getCurrentSubname</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>GridCoverageReader.getCurrentSubname()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getMetadataNames()"><!-- --></A><H3>
getMetadataNames</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[] <B>getMetadataNames</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getMetadataNames</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>GridCoverageReader.getMetadataNames()</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getMetadataValue(java.lang.String)"><!-- --></A><H3>
getMetadataValue</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>getMetadataValue</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>&nbsp;name)
                        throws MetadataNameNotFoundException</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getMetadataValue</CODE> in interface <CODE>GridCoverageReader</CODE></DL>
</DD>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE>MetadataNameNotFoundException</CODE><DT><B>See Also:</B><DD><CODE>GridCoverageReader.getMetadataValue(java.lang.String)</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getGridCoverageCount()"><!-- --></A><H3>
getGridCoverageCount</H3>
<PRE>
public int <B>getGridCoverageCount</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><CODE>org.opengis.coverage.grid.GridCoverageReader#getGridCoverageCount()</CODE></DL>
</DD>
</DL>
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