operations.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;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#add(org.opengis.coverage.Coverage, double[])">add</A></B>(Coverage&nbsp;source,
    double[]&nbsp;constants)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds constants (one for each band) to every sample values of the source coverage.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#crop(org.opengis.coverage.Coverage, org.opengis.spatialschema.geometry.Envelope)">crop</A></B>(Coverage&nbsp;Source,
     Envelope&nbsp;envelope)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Crops the image to a specified rectangular area.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#divideBy(org.opengis.coverage.Coverage, double[])">divideBy</A></B>(Coverage&nbsp;source,
         double[]&nbsp;constants)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Divides every sample values of the source coverage by constants (one for each band).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#doOperation(java.lang.String, org.opengis.coverage.Coverage)">doOperation</A></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;operationName,
            Coverage&nbsp;source)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies a process operation with default parameters.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#doOperation(java.lang.String, org.opengis.coverage.Coverage, java.lang.String, java.lang.Object)">doOperation</A></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;operationName,
            Coverage&nbsp;source,
            <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;argumentName1,
            <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;argumentValue1)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies a process operation with one parameter.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#doOperation(java.lang.String, org.opengis.coverage.Coverage, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object)">doOperation</A></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;operationName,
            Coverage&nbsp;source,
            <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;argumentName1,
            <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;argumentValue1,
            <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;argumentName2,
            <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;argumentValue2)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies process operation with two parameters.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#doOperation(java.lang.String, org.opengis.coverage.Coverage, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object)">doOperation</A></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;operationName,
            Coverage&nbsp;source,
            <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;argumentName1,
            <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;argumentValue1,
            <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;argumentName2,
            <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;argumentValue2,
            <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;argumentName3,
            <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;argumentValue3)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies a process operation with three parameters.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#doOperation(java.lang.String, org.opengis.coverage.Coverage, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object)">doOperation</A></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;operationName,
            Coverage&nbsp;source,
            <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;argumentName1,
            <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;argumentValue1,
            <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;argumentName2,
            <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;argumentValue2,
            <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;argumentName3,
            <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;argumentValue3,
            <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;argumentName4,
            <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;argumentValue4)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies a process operation with four parameters.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#doOperation(java.lang.String, org.opengis.coverage.Coverage, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object)">doOperation</A></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;operationName,
            Coverage&nbsp;source,
            <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;argumentName1,
            <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;argumentValue1,
            <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;argumentName2,
            <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;argumentValue2,
            <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;argumentName3,
            <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;argumentValue3,
            <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;argumentName4,
            <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;argumentValue4,
            <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;argumentName5,
            <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;argumentValue5)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies a process operation with five parameters.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#doOperation(java.lang.String, org.opengis.coverage.Coverage, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object, java.lang.String, java.lang.Object)">doOperation</A></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;operationName,
            Coverage&nbsp;source,
            <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;argumentName1,
            <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;argumentValue1,
            <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;argumentName2,
            <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;argumentValue2,
            <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;argumentName3,
            <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;argumentValue3,
            <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;argumentName4,
            <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;argumentValue4,
            <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;argumentName5,
            <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;argumentValue5,
            <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;argumentName6,
            <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;argumentValue6)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies a process operation with six parameters.
 </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;Coverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#exp(org.opengis.coverage.Coverage)">exp</A></B>(Coverage&nbsp;source)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Takes the exponential of the sample values of a coverage.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;GridCoverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#filteredSubsample(org.opengis.coverage.grid.GridCoverage)">filteredSubsample</A></B>(GridCoverage&nbsp;source)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subsamples an image using the default values. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;GridCoverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#filteredSubsample(org.opengis.coverage.grid.GridCoverage, int, int, float[])">filteredSubsample</A></B>(GridCoverage&nbsp;source,
                  int&nbsp;scaleX,
                  int&nbsp;scaleY,
                  float[]&nbsp;qsFilter)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subsamples an image by integral factors.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;GridCoverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#filteredSubsample(org.opengis.coverage.grid.GridCoverage, int, int, float[], javax.media.jai.Interpolation)">filteredSubsample</A></B>(GridCoverage&nbsp;source,
                  int&nbsp;scaleX,
                  int&nbsp;scaleY,
                  float[]&nbsp;qsFilter,
                  <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/Interpolation.html" title="class or interface in javax.media.jai">Interpolation</A>&nbsp;interpolation)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I>Replaced by <CODE>#filteredSubsample(GridCoverage,int,int,float[],
             Interpolation,BorderExtender</CODE> with a  border extender.</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;GridCoverage</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/coverage/processing/Operations.html#filteredSubsample(org.opengis.coverage.grid.GridCoverage, int, int, float[], javax.media.jai.Interpolation, javax.media.jai.BorderExtender)">filteredSubsample</A></B>(GridCoverage&nbsp;source,
                  int&nbsp;scaleX,
                  int&nbsp;scaleY,
                  float[]&nbsp;qsFilter,
                  <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/Interpolation.html" title="class or interface in javax.media.jai">Interpolation</A>&nbsp;interpolation,
                  <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/BorderExtender.html" title="class or interface in javax.media.jai">BorderExtender</A>&nbsp;be)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subsamples an image by integral factors.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;Coverage</CODE></FONT></TD>