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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 1.5.0_10) on Fri Jan 26 16:35:56 NZDT 2007 --><TITLE>LayoutEngine</TITLE><META NAME="keywords" CONTENT="weka.gui.graphvisualizer.LayoutEngine interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="LayoutEngine";}</SCRIPT><NOSCRIPT></NOSCRIPT></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=2 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="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> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="http://www.cs.waikato.ac.nz/ml/weka/" target="_blank"><FONT CLASS="NavBarFont1"><B>Weka's home</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="../../../weka/gui/graphvisualizer/LayoutCompleteEventListener.html" title="interface in weka.gui.graphvisualizer"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html?weka/gui/graphvisualizer/LayoutEngine.html" target="_top"><B>FRAMES</B></A> <A HREF="LayoutEngine.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">weka.gui.graphvisualizer</FONT><BR>Interface LayoutEngine</H2><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../weka/gui/graphvisualizer/HierarchicalBCEngine.html" title="class in weka.gui.graphvisualizer">HierarchicalBCEngine</A></DD></DL><HR><DL><DT><PRE>public interface <B>LayoutEngine</B></DL></PRE><P>This interface class has been added to facilitate the addition of other layout engines to this package. Any class that wants to lay out a graph should implement this interface.<P><P><DL><DT><B>Version:</B></DT> <DD>$Revision: 1.4 $ - 24 Apr 2003 - Initial version (Ashraf M. Kibriya)</DD><DT><B>Author:</B></DT> <DD>Ashraf M. Kibriya (amk14@cs.waikato.ac.nz)</DD></DL><HR><P><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></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="../../../weka/gui/graphvisualizer/LayoutEngine.html#addLayoutCompleteEventListener(weka.gui.graphvisualizer.LayoutCompleteEventListener)">addLayoutCompleteEventListener</A></B>(<A HREF="../../../weka/gui/graphvisualizer/LayoutCompleteEventListener.html" title="interface in weka.gui.graphvisualizer">LayoutCompleteEventListener</A> e)</CODE><BR> This method adds a LayoutCompleteEventListener to the LayoutEngine.</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="../../../weka/gui/graphvisualizer/LayoutEngine.html#fireLayoutCompleteEvent(weka.gui.graphvisualizer.LayoutCompleteEvent)">fireLayoutCompleteEvent</A></B>(<A HREF="../../../weka/gui/graphvisualizer/LayoutCompleteEvent.html" title="class in weka.gui.graphvisualizer">LayoutCompleteEvent</A> e)</CODE><BR> This fires a LayoutCompleteEvent once a layout has been completed.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> javax.swing.JPanel</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/gui/graphvisualizer/LayoutEngine.html#getControlPanel()">getControlPanel</A></B>()</CODE><BR> This method returns the extra controls panel for the LayoutEngine, if there is any.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> javax.swing.JProgressBar</CODE></FONT></TD><TD><CODE><B><A HREF="../../../weka/gui/graphvisualizer/LayoutEngine.html#getProgressBar()">getProgressBar</A></B>()</CODE><BR> This method returns the progress bar for the LayoutEngine, which shows the progress of the layout process, if it takes a while to layout the graph</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="../../../weka/gui/graphvisualizer/LayoutEngine.html#layoutGraph()">layoutGraph</A></B>()</CODE><BR> This method lays out the graph for better visualization</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="../../../weka/gui/graphvisualizer/LayoutEngine.html#removeLayoutCompleteEventListener(weka.gui.graphvisualizer.LayoutCompleteEventListener)">removeLayoutCompleteEventListener</A></B>(<A HREF="../../../weka/gui/graphvisualizer/LayoutCompleteEventListener.html" title="interface in weka.gui.graphvisualizer">LayoutCompleteEventListener</A> e)</CODE><BR> This method removes a LayoutCompleteEventListener from the LayoutEngine.</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="../../../weka/gui/graphvisualizer/LayoutEngine.html#setNodesEdges(weka.core.FastVector, weka.core.FastVector)">setNodesEdges</A></B>(<A HREF="../../../weka/core/FastVector.html" title="class in weka.core">FastVector</A> nodes, <A HREF="../../../weka/core/FastVector.html" title="class in weka.core">FastVector</A> edges)</CODE><BR> This method sets the nodes and edges vectors of the LayoutEngine</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="../../../weka/gui/graphvisualizer/LayoutEngine.html#setNodeSize(int, int)">setNodeSize</A></B>(int nodeWidth, int nodeHeight)</CODE><BR> This method sets the allowed size of the node</TD></TR></TABLE> <P><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Method Detail</B></FONT></TH></TR></TABLE><A NAME="layoutGraph()"><!-- --></A><H3>layoutGraph</H3><PRE>void <B>layoutGraph</B>()</PRE><DL><DD>This method lays out the graph for better visualization<P><DD><DL></DL></DD></DL><HR><A NAME="setNodesEdges(weka.core.FastVector, weka.core.FastVector)"><!-- --></A><H3>setNodesEdges</H3><PRE>void <B>setNodesEdges</B>(<A HREF="../../../weka/core/FastVector.html" title="class in weka.core">FastVector</A> nodes, <A HREF="../../../weka/core/FastVector.html" title="class in weka.core">FastVector</A> edges)</PRE><DL><DD>This method sets the nodes and edges vectors of the LayoutEngine<P><DD><DL></DL></DD></DL><HR><A NAME="setNodeSize(int, int)"><!-- --></A><H3>setNodeSize</H3><PRE>void <B>setNodeSize</B>(int nodeWidth, int nodeHeight)</PRE><DL><DD>This method sets the allowed size of the node<P><DD><DL></DL></DD></DL><HR><A NAME="getControlPanel()"><!-- --></A><H3>getControlPanel</H3><PRE>javax.swing.JPanel <B>getControlPanel</B>()</PRE><DL><DD>This method returns the extra controls panel for the LayoutEngine, if there is any.<P><DD><DL></DL></DD></DL><HR><A NAME="getProgressBar()"><!-- --></A><H3>getProgressBar</H3><PRE>javax.swing.JProgressBar <B>getProgressBar</B>()</PRE><DL><DD>This method returns the progress bar for the LayoutEngine, which shows the progress of the layout process, if it takes a while to layout the graph<P><DD><DL></DL></DD></DL><HR><A NAME="addLayoutCompleteEventListener(weka.gui.graphvisualizer.LayoutCompleteEventListener)"><!-- --></A><H3>addLayoutCompleteEventListener</H3><PRE>void <B>addLayoutCompleteEventListener</B>(<A HREF="../../../weka/gui/graphvisualizer/LayoutCompleteEventListener.html" title="interface in weka.gui.graphvisualizer">LayoutCompleteEventListener</A> e)</PRE><DL><DD>This method adds a LayoutCompleteEventListener to the LayoutEngine.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>e</CODE> - - The LayoutCompleteEventListener to add</DL></DD></DL><HR><A NAME="removeLayoutCompleteEventListener(weka.gui.graphvisualizer.LayoutCompleteEventListener)"><!-- --></A><H3>removeLayoutCompleteEventListener</H3><PRE>void <B>removeLayoutCompleteEventListener</B>(<A HREF="../../../weka/gui/graphvisualizer/LayoutCompleteEventListener.html" title="interface in weka.gui.graphvisualizer">LayoutCompleteEventListener</A> e)</PRE><DL><DD>This method removes a LayoutCompleteEventListener from the LayoutEngine.<P><DD><DL><DT><B>Parameters:</B><DD><CODE>e</CODE> - - The LayoutCompleteEventListener to remove.</DL></DD></DL><HR><A NAME="fireLayoutCompleteEvent(weka.gui.graphvisualizer.LayoutCompleteEvent)"><!-- --></A><H3>fireLayoutCompleteEvent</H3><PRE>void <B>fireLayoutCompleteEvent</B>(<A HREF="../../../weka/gui/graphvisualizer/LayoutCompleteEvent.html" title="class in weka.gui.graphvisualizer">LayoutCompleteEvent</A> e)</PRE><DL><DD>This fires a LayoutCompleteEvent once a layout has been completed.<P><DD><DL></DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_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 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