gradientmagnitude.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

      <td align="center">N/A</td>
    </tr>
    <tr>
      <td></td>
      <td><A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/KernelJAI.html" title="class or interface in javax.media.jai"><CODE>KernelJAI</CODE></A></td>
      <td><A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/KernelJAI.html#GRADIENT_MASK_SOBEL_VERTICAL" title="class or interface in javax.media.jai"><CODE>KernelJAI.GRADIENT_MASK_SOBEL_VERTICAL</CODE></A></td>
      <td align="center">N/A</td>
      <td align="center">N/A</td>
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<P>
<DL>
<DT><B>Since:</B></DT>
  <DD>2.2</DD>
<DT><B>Author:</B></DT>
  <DD>Martin Desruisseaux</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../../org/geotools/coverage/processing/Operations.html#gradientMagnitude(org.opengis.coverage.Coverage)"><CODE>Operations.gradientMagnitude(org.opengis.coverage.Coverage)</CODE></A>, 
<A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/GradientMagnitudeDescriptor.html" title="class or interface in javax.media.jai.operator"><CODE>GradientMagnitudeDescriptor</CODE></A>, 
<A HREF="../../../../../serialized-form.html#org.geotools.coverage.processing.operation.GradientMagnitude">Serialized Form</A>
<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/coverage/processing/operation/GradientMagnitude.java">SVN head</A>)</DD>
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<B>Nested Class Summary</B></FONT></TD>
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&nbsp;<A NAME="nested_classes_inherited_from_class_org.geotools.coverage.processing.OperationJAI"><!-- --></A>
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<TD><B>Nested classes inherited from class <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html" title="class in org.geotools.coverage.processing">OperationJAI</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.Parameters.html" title="class in org.geotools.coverage.processing">OperationJAI.Parameters</A></CODE></TD>
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<B>Field Summary</B></FONT></TD>
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&nbsp;<A NAME="fields_inherited_from_class_OperationJAI"><!-- --></A>
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<TD><B>Fields inherited from class <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html" title="class in org.geotools.coverage.processing">OperationJAI</A></B></TD>
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<TD><CODE><A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#operation">operation</A></CODE></TD>
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&nbsp;<A NAME="fields_inherited_from_class_Operation2D"><!-- --></A>
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<TD><B>Fields inherited from class <A HREF="../../../../../org/geotools/coverage/processing/Operation2D.html" title="class in org.geotools.coverage.processing">Operation2D</A></B></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../org/geotools/coverage/processing/Operation2D.html#SOURCE_0">SOURCE_0</A></CODE></TD>
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<TD><B>Fields inherited from class <A HREF="../../../../../org/geotools/coverage/processing/AbstractOperation.html" title="class in org.geotools.coverage.processing">AbstractOperation</A></B></TD>
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<TD><CODE><A HREF="../../../../../org/geotools/coverage/processing/AbstractOperation.html#descriptor">descriptor</A></CODE></TD>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../../../../org/geotools/coverage/processing/operation/GradientMagnitude.html#GradientMagnitude()">GradientMagnitude</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a default gradient magnitude operation.</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>protected &nbsp;<A HREF="../../../../../org/geotools/coverage/Category.html" title="class in org.geotools.coverage">Category</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/coverage/processing/operation/GradientMagnitude.html#deriveCategory(org.geotools.coverage.Category[], org.geotools.coverage.processing.OperationJAI.Parameters)">deriveCategory</A></B>(<A HREF="../../../../../org/geotools/coverage/Category.html" title="class in org.geotools.coverage">Category</A>[]&nbsp;categories,
               <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.Parameters.html" title="class in org.geotools.coverage.processing">OperationJAI.Parameters</A>&nbsp;parameters)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Derives the quantitative category for a band in the destination image.
 </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="../../../../../org/geotools/coverage/grid/GridCoverage2D.html" title="class in org.geotools.coverage.grid">GridCoverage2D</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/coverage/processing/operation/GradientMagnitude.html#deriveGridCoverage(org.geotools.coverage.grid.GridCoverage2D[], org.geotools.coverage.processing.OperationJAI.Parameters)">deriveGridCoverage</A></B>(<A HREF="../../../../../org/geotools/coverage/grid/GridCoverage2D.html" title="class in org.geotools.coverage.grid">GridCoverage2D</A>[]&nbsp;sources,
                   <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.Parameters.html" title="class in org.geotools.coverage.processing">OperationJAI.Parameters</A>&nbsp;parameters)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Applies the operation on grid coverage. </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">Unit</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/geotools/coverage/processing/operation/GradientMagnitude.html#deriveUnit(javax.units.Unit[], org.geotools.coverage.processing.OperationJAI.Parameters)">deriveUnit</A></B>(<A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">Unit</A>[]&nbsp;units,
           <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.Parameters.html" title="class in org.geotools.coverage.processing">OperationJAI.Parameters</A>&nbsp;parameters)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Derives the unit of data for a band in the destination image.
 </TD>
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<TD><CODE><A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#computeOnGeophysicsValues(org.opengis.parameter.ParameterValueGroup)">computeOnGeophysicsValues</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#copyParameters(org.opengis.parameter.ParameterValueGroup)">copyParameters</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#createRenderedImage(javax.media.jai.ParameterBlockJAI, java.awt.RenderingHints)">createRenderedImage</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#deriveName(org.geotools.coverage.grid.GridCoverage2D[], int, org.geotools.coverage.processing.OperationJAI.Parameters)">deriveName</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#deriveRange(org.geotools.util.NumberRange[], org.geotools.coverage.processing.OperationJAI.Parameters)">deriveRange</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#deriveSampleDimension(org.geotools.coverage.GridSampleDimension[][], org.geotools.coverage.processing.OperationJAI.Parameters)">deriveSampleDimension</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#doOperation(org.opengis.parameter.ParameterValueGroup, org.geotools.factory.Hints)">doOperation</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#equals(java.lang.Object)">equals</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#extractSources(org.opengis.parameter.ParameterValueGroup, java.lang.String[], org.geotools.coverage.grid.GridCoverage2D[])">extractSources</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#getJAI(java.awt.RenderingHints)">getJAI</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#getOperationDescriptor(java.lang.String)">getOperationDescriptor</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#getProperties(java.awt.image.RenderedImage, org.opengis.referencing.crs.CoordinateReferenceSystem, org.opengis.util.InternationalString, org.opengis.referencing.operation.MathTransform, org.geotools.coverage.grid.GridCoverage2D[], org.geotools.coverage.processing.OperationJAI.Parameters)">getProperties</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#postProcessResult(java.lang.Boolean, org.geotools.coverage.grid.GridCoverage2D)">postProcessResult</A>, <A HREF="../../../../../org/geotools/coverage/processing/OperationJAI.html#resampleToCommonGeometry(org.geotools.coverage.grid.GridCoverage2D[], org.opengis.referencing.crs.CoordinateReferenceSystem, org.opengis.referencing.operation.MathTransform2D, org.geotools.factory.Hints)">resampleToCommonGeometry</A></CODE></TD>
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