imageworker.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

<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#retainBands(int)">retainBands</A></B>(int&nbsp;numBands)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retains inconditionnaly the first  of <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A>.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#retainBands(int[])">retainBands</A></B>(int[]&nbsp;bands)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retains inconditionnaly certain bands of <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A>. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#retainFirstBand()">retainFirstBand</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retains inconditionnaly the first band of <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A>. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#retainLastBand()">retainLastBand</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Retains inconditionnaly the last band of <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A>. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#setImage(java.awt.image.RenderedImage)">setImage</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;image)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepare this builder for the specified image. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#setRenderingHint(java.awt.RenderingHints.Key, java.lang.Object)">setRenderingHint</A></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)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set a rendering hint tile to use for all images to be computed by this
 class. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#setROI(javax.media.jai.ROI)">setROI</A></B>(<A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/ROI.html" title="class or interface in javax.media.jai">ROI</A>&nbsp;roi)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the <cite>region of interest</cite> (ROI). </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#show()">show</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shows the current <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A> in a window together with the
 operation chain as a <A HREF="http://java.sun.com/j2se/1.4/docs/api/javax/swing/JTree.html" title="class or interface in javax.swing">tree</A>. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#tile()">tile</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If the was not already tiled, tile it. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#tileCacheEnabled(boolean)">tileCacheEnabled</A></B>(boolean&nbsp;status)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If , disables the tile cache. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#write(java.io.File)">write</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;output)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes the <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A> to the specified file. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#writeGIF(java.lang.Object, java.lang.String, float)">writeGIF</A></B>(<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;destination,
         <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;compression,
         float&nbsp;compressionRate)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes outs the image contained into this <A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image"><CODE>ImageWorker</CODE></A> as a GIF
 using the provided destination , compression and compression rate.
 
 
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#writeJPEG(java.lang.Object, java.lang.String, float, boolean)">writeJPEG</A></B>(<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;destination,
          <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;compression,
          float&nbsp;compressionRate,
          boolean&nbsp;nativeAcc)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes outs the image contained into this <A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image"><CODE>ImageWorker</CODE></A> as a JPEG
 using the provided destination , compression and compression rate.
 
 
 
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#writePNG(java.lang.Object, java.lang.String, float, boolean, boolean)">writePNG</A></B>(<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;destination,
         <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;compression,
         float&nbsp;compressionRate,
         boolean&nbsp;nativeAcc,
         boolean&nbsp;paletted)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Writes outs the image contained into this <A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image"><CODE>ImageWorker</CODE></A> as a PNG
 using the provided destination , compression and compression rate.
 
 
 
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#xorConst(int[])">xorConst</A></B>(int[]&nbsp;values)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 The xorConst operation takes one rendered or renderable image and an
 array of integer constants, and performs a bit-wise logical "xor" between
 every pixel in the same band of the source and the constant from the
 corresponding array entry. </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#equals(java.lang.Object)" title="class or interface in java.lang">equals</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#hashCode()" title="class or interface in java.lang">hashCode</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#toString()" title="class or interface in java.lang">toString</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;
<P>

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

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

<A NAME="TILING_ALLOWED"><!-- --></A><H3>
TILING_ALLOWED</H3>
<PRE>
public static final <A HREF="../../../org/geotools/factory/Hints.Key.html" title="class in org.geotools.factory">Hints.Key</A> <B>TILING_ALLOWED</B></PRE>
<DL>
<DD>If <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Boolean.html#FALSE" title="class or interface in java.lang"><CODE>FALSE</CODE></A>, image operators are not allowed to
 produce tiled images. The default is <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Boolean.html#TRUE" title="class or interface in java.lang"><CODE>TRUE</CODE></A>. The
  value is sometime useful for exporting images to some
 formats that doesn't support tiling (e.g. GIF).
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/image/ImageWorker.html#setRenderingHint(java.awt.RenderingHints.Key, java.lang.Object)"><CODE>setRenderingHint(java.awt.RenderingHints.Key, java.lang.Object)</CODE></A></DL>
</DL>
<HR>

<A NAME="image"><!-- --></A><H3>
image</H3>
<PRE>
protected <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> <B>image</B></PRE>
<DL>
<DD>The image being built.
<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>
</TR>
</TABLE>

<A NAME="ImageWorker(java.awt.image.RenderedImage)"><!-- --></A><H3>
ImageWorker</H3>
<PRE>
public <B>ImageWorker</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;image)</PRE>
<DL>
<DD>Creates a new builder for the specified image. The images to be computed