📄 channelselection.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.4.2_13) on Tue Jun 05 11:36:24 GMT-05:00 2007 --><META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><TITLE>ChannelSelection (Geotools 2.3.x 2.3.2 API)</TITLE><META NAME="keywords" CONTENT="org.geotools.styling.ChannelSelection interface"><META NAME="keywords" CONTENT="setRGBChannels()"><META NAME="keywords" CONTENT="getRGBChannels()"><META NAME="keywords" CONTENT="setGrayChannel()"><META NAME="keywords" CONTENT="getGrayChannel()"><META NAME="keywords" CONTENT="setSelectedChannels()"><META NAME="keywords" CONTENT="getSelectedChannels()"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ChannelSelection (Geotools 2.3.x 2.3.2 API)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/ChannelSelection.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../org/geotools/styling/AnchorPoint.html" title="interface in org.geotools.styling"><B>PREV CLASS</B></A> <A HREF="../../../org/geotools/styling/ColorMap.html" title="interface in org.geotools.styling"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="ChannelSelection.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.geotools.styling</FONT><BR>Interface ChannelSelection</H2><DL><DT><B>All Superinterfaces:</B> <DD><A HREF="../../../org/geotools/event/GTComponent.html" title="interface in org.geotools.event">GTComponent</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../org/geotools/styling/ChannelSelectionImpl.html" title="class in org.geotools.styling">ChannelSelectionImpl</A></DD></DL><HR><DL><DT>public interface <B>ChannelSelection</B><DT>extends <A HREF="../../../org/geotools/event/GTComponent.html" title="interface in org.geotools.event">GTComponent</A></DL><P>The ChannelSelection element specifies the false-color channel selection for a multi-spectral raster source (such as a multi-band satellite-imagery source). It is defined as: <PRE> <xs:element name="ChannelSelection"> <xs:complexType> <xs:choice> <xs:sequence> <xs:element ref="sld:RedChannel"/> <xs:element ref="sld:GreenChannel"/> <xs:element ref="sld:BlueChannel"/> </xs:sequence> <xs:element ref="sld:GrayChannel"/> </xs:choice> </xs:complexType> </xs:element> <xs:element name="RedChannel" type="sld:SelectedChannelType"/> <xs:element name="GreenChannel" type="sld:SelectedChannelType"/> <xs:element name="BlueChannel" type="sld:SelectedChannelType"/> <xs:element name="GrayChannel" type="sld:SelectedChannelType"/> </PRE> Either a channel may be selected to display in each of red, green, and blue, or a single channel may be selected to display in grayscale. (The spelling ?gray? is used since it seems to be more common on the Web than ?grey? by a ratio of about 3:1.) Contrast enhancement may be applied to each channel in isolation. Channels are identified by a system and data-dependent character identifier. Commonly, channels will be labelled as ?1?, ?2?, etc.<P><P><DL><DT><B>Author:</B></DT> <DD>iant</DD><DT><B>Module:</B></DT><DD><CODE><B>module/api</B></CODE> (<A HREF="http://maven.geotools.fr/repository/org/geotools/gt2-api/"><CODE>gt2-api.jar</CODE></A>) (<A HREF="http://maven.geotools.fr/reports/api/index.html">Maven report</A>) (<A HREF="http://svn.geotools.org/geotools/tags/2.3.2/module/api/src/org/geotools/styling/ChannelSelection.java">SVN head</A>)</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/styling/ChannelSelection.html#getGrayChannel()">getGrayChannel</A></B>()</CODE><BR> Get the gray channel to be used</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/styling/ChannelSelection.html#getRGBChannels()">getRGBChannels</A></B>()</CODE><BR> get the RGB channels to be used</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/styling/ChannelSelection.html#getSelectedChannels()">getSelectedChannels</A></B>()</CODE><BR> get the channels to be used</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/styling/ChannelSelection.html#setGrayChannel(org.geotools.styling.SelectedChannelType)">setGrayChannel</A></B>(<A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A> gray)</CODE><BR> Set the gray channel to be used</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/styling/ChannelSelection.html#setRGBChannels(org.geotools.styling.SelectedChannelType[])">setRGBChannels</A></B>(<A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A>[] channels)</CODE><BR> set the RGB channels to be used</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../org/geotools/styling/ChannelSelection.html#setRGBChannels(org.geotools.styling.SelectedChannelType, org.geotools.styling.SelectedChannelType, org.geotools.styling.SelectedChannelType)">setRGBChannels</A></B>(<A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A> red, <A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A> green, <A HREF="../../../org/geotools/styling/SelectedChannelType.html" title="interface in org.geotools.styling">SelectedChannelType</A> blue)</CODE><BR> set the RGB channels to be used</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">⌨️ 快捷键说明
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