combinedescriptor.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

<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/image/jai/CombineDescriptor.html#validateParameters(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)">validateParameters</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;modeName,
                   <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/ParameterBlock.html" title="class or interface in java.awt.image.renderable">ParameterBlock</A>&nbsp;param,
                   <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/StringBuffer.html" title="class or interface in java.lang">StringBuffer</A>&nbsp;message)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns  if the parameters are valids. </TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/geotools/image/jai/CombineDescriptor.html#validateSources(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)">validateSources</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;modeName,
                <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/ParameterBlock.html" title="class or interface in java.awt.image.renderable">ParameterBlock</A>&nbsp;param,
                <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/StringBuffer.html" title="class or interface in java.lang">StringBuffer</A>&nbsp;message)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns  if this operation supports the specified mode, and
 is capable of handling the given input source(s) for the specified mode.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_OperationDescriptorImpl"><!-- --></A>
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<TD><B>Methods inherited from class <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html" title="class or interface in javax.media.jai">OperationDescriptorImpl</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#arePropertiesSupported()" title="class or interface in javax.media.jai">arePropertiesSupported</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getDefaultSourceClass(java.lang.String)" title="class or interface in javax.media.jai">getDefaultSourceClass</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getDestClass()" title="class or interface in javax.media.jai">getDestClass</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getDestClass(java.lang.String)" title="class or interface in javax.media.jai">getDestClass</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getInvalidRegion(java.lang.String, java.awt.image.renderable.ParameterBlock, java.awt.RenderingHints, java.awt.image.renderable.ParameterBlock, java.awt.RenderingHints, javax.media.jai.OperationNode)" title="class or interface in javax.media.jai">getInvalidRegion</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getName()" title="class or interface in javax.media.jai">getName</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getNumParameters()" title="class or interface in javax.media.jai">getNumParameters</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getNumSources()" title="class or interface in javax.media.jai">getNumSources</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getParamClasses()" title="class or interface in javax.media.jai">getParamClasses</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getParamDefaults()" title="class or interface in javax.media.jai">getParamDefaults</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getParamDefaultValue(int)" title="class or interface in javax.media.jai">getParamDefaultValue</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getParameterListDescriptor(java.lang.String)" title="class or interface in javax.media.jai">getParameterListDescriptor</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getParamMaxValue(int)" title="class or interface in javax.media.jai">getParamMaxValue</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getParamMinValue(int)" title="class or interface in javax.media.jai">getParamMinValue</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getParamNames()" title="class or interface in javax.media.jai">getParamNames</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getPropertyGenerators()" title="class or interface in javax.media.jai">getPropertyGenerators</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getPropertyGenerators(java.lang.String)" title="class or interface in javax.media.jai">getPropertyGenerators</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getRenderableDestClass()" title="class or interface in javax.media.jai">getRenderableDestClass</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getRenderableSourceClasses()" title="class or interface in javax.media.jai">getRenderableSourceClasses</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getResourceBundle(java.util.Locale)" title="class or interface in javax.media.jai">getResourceBundle</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getResources(java.util.Locale)" title="class or interface in javax.media.jai">getResources</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getSourceClasses()" title="class or interface in javax.media.jai">getSourceClasses</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getSourceClasses(java.lang.String)" title="class or interface in javax.media.jai">getSourceClasses</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getSourceNames()" title="class or interface in javax.media.jai">getSourceNames</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#getSupportedModes()" title="class or interface in javax.media.jai">getSupportedModes</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#isImmediate()" title="class or interface in javax.media.jai">isImmediate</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#isModeSupported(java.lang.String)" title="class or interface in javax.media.jai">isModeSupported</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#isRenderableSupported()" title="class or interface in javax.media.jai">isRenderableSupported</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#isRenderedSupported()" title="class or interface in javax.media.jai">isRenderedSupported</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#makeDefaultSourceClassList(java.lang.String[], int)" title="class or interface in javax.media.jai">makeDefaultSourceClassList</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#validateArguments(java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)" title="class or interface in javax.media.jai">validateArguments</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#validateArguments(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)" title="class or interface in javax.media.jai">validateArguments</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#validateParameters(java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)" title="class or interface in javax.media.jai">validateParameters</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#validateRenderableArguments(java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)" title="class or interface in javax.media.jai">validateRenderableArguments</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#validateRenderableSources(java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)" title="class or interface in javax.media.jai">validateRenderableSources</A>, <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/OperationDescriptorImpl.html#validateSources(java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)" title="class or interface in javax.media.jai">validateSources</A></CODE></TD>
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<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>
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<B>Field Detail</B></FONT></TD>
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<A NAME="OPERATION_NAME"><!-- --></A><H3>
OPERATION_NAME</H3>
<PRE>
public static final <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>OPERATION_NAME</B></PRE>
<DL>
<DD>The operation name, which is "org.geotools.Combine".
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.geotools.image.jai.CombineDescriptor.OPERATION_NAME">Constant Field Values</A></DL>
</DL>

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<B>Constructor Detail</B></FONT></TD>
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<A NAME="CombineDescriptor()"><!-- --></A><H3>
CombineDescriptor</H3>
<PRE>
public <B>CombineDescriptor</B>()</PRE>
<DL>
<DD>Constructs the descriptor.
<P>
</DL>

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<A NAME="validateSources(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)"><!-- --></A><H3>
validateSources</H3>
<PRE>
protected boolean <B>validateSources</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;modeName,
                                  <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/ParameterBlock.html" title="class or interface in java.awt.image.renderable">ParameterBlock</A>&nbsp;param,
                                  <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/StringBuffer.html" title="class or interface in java.lang">StringBuffer</A>&nbsp;message)</PRE>
<DL>
<DD>Returns  if this operation supports the specified mode, and
 is capable of handling the given input source(s) for the specified mode.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>modeName</CODE> - The mode name (usually "Rendered").<DD><CODE>param</CODE> - The parameter block for the operation to performs.<DD><CODE>message</CODE> - A buffer for formatting an error message if any.</DL>
</DD>
</DL>
<HR>

<A NAME="validateParameters(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)"><!-- --></A><H3>
validateParameters</H3>
<PRE>
protected boolean <B>validateParameters</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;modeName,
                                     <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/renderable/ParameterBlock.html" title="class or interface in java.awt.image.renderable">ParameterBlock</A>&nbsp;param,
                                     <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/StringBuffer.html" title="class or interface in java.lang">StringBuffer</A>&nbsp;message)</PRE>
<DL>
<DD>Returns  if the parameters are valids. This implementation check
 that the number of bands in the source src1 is equals to the number of bands of 
 source src2.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>modeName</CODE> - The mode name (usually "Rendered").<DD><CODE>param</CODE> - The parameter block for the operation to performs.<DD><CODE>message</CODE> - A buffer for formatting an error message if any.</DL>
</DD>
</DL>
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