deferredplanarimage.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

     }

     public void paint(Graphics gr) {
         ((Graphics2D) gr).drawRenderedImage(image);
     }
 }
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<DT><B>Since:</B></DT>
  <DD>2.3</DD>
<DT><B>Author:</B></DT>
  <DD>Remi Eve, Martin Desruisseaux</DD>

<DT><B>Module:</B></DT>
<DD><CODE><B>module/coverage</B></CODE> &nbsp; (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-coverage/"><CODE>gt2-coverage.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/coverage/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/module/coverage/src/org/geotools/image/DeferredPlanarImage.java">SVN head</A>)</DD>
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<B>Field Summary</B></FONT></TD>
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&nbsp;<A NAME="fields_inherited_from_class_PlanarImage"><!-- --></A>
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<TD><B>Fields inherited from class <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html" title="class or interface in javax.media.jai">PlanarImage</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#colorModel" title="class or interface in javax.media.jai">colorModel</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#eventManager" title="class or interface in javax.media.jai">eventManager</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#height" title="class or interface in javax.media.jai">height</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#minX" title="class or interface in javax.media.jai">minX</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#minY" title="class or interface in javax.media.jai">minY</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#properties" title="class or interface in javax.media.jai">properties</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#sampleModel" title="class or interface in javax.media.jai">sampleModel</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#tileFactory" title="class or interface in javax.media.jai">tileFactory</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#tileGridXOffset" title="class or interface in javax.media.jai">tileGridXOffset</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#tileGridYOffset" title="class or interface in javax.media.jai">tileGridYOffset</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#tileHeight" title="class or interface in javax.media.jai">tileHeight</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#tileWidth" title="class or interface in javax.media.jai">tileWidth</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/PlanarImage.html#width" title="class or interface in javax.media.jai">width</A></CODE></TD>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<B>Constructor Summary</B></FONT></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#DeferredPlanarImage(java.awt.image.RenderedImage)">DeferredPlanarImage</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image">RenderedImage</A>&nbsp;source)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a new instance of .</TD>
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<B>Method Summary</B></FONT></TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#addTileObserver(java.awt.image.TileObserver)">addTileObserver</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/TileObserver.html" title="class or interface in java.awt.image">TileObserver</A>&nbsp;observer)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds an observer. </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#dispose()">dispose</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Provides a hint that this image will no longer be accessed from a reference in user space.
 </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/Raster.html" title="class or interface in java.awt.image">Raster</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#getTile(int, int)">getTile</A></B>(int&nbsp;tileX,
        int&nbsp;tileY)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the specified tile, or a default one if the requested tile is not yet available.
 </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/WritableRaster.html" title="class or interface in java.awt.image">WritableRaster</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#getWritableTile(int, int)">getWritableTile</A></B>(int&nbsp;tileX,
                int&nbsp;tileY)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Checks out a tile for writing. </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Point.html" title="class or interface in java.awt">Point</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#getWritableTileIndices()">getWritableTileIndices</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns an array of <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Point.html" title="class or interface in java.awt"><CODE>Point</CODE></A> objects indicating which tiles are
 checked out for writing. </TD>
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<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/image/DeferredPlanarImage.html#hasTileWriters()">hasTileWriters</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns whether any tile is checked out for writing.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#isTileWritable(int, int)">isTileWritable</A></B>(int&nbsp;tileX,
               int&nbsp;tileY)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns whether a tile is currently checked out for writing.</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/DeferredPlanarImage.html#releaseWritableTile(int, int)">releaseWritableTile</A></B>(int&nbsp;tileX,
                    int&nbsp;tileY)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Relinquishes the right to write to a tile. </TD>