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<html><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><!--Converted with jLaTeX2HTML 2002 (1.62) JA patch-1.4patched version by: Kenshi Muto, Debian Project.LaTeX2HTML 2002 (1.62),original version by: Nikos Drakos, CBLU, University of Leeds* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan* with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --><HTML><HEAD><TITLE>40.7 Animation Objects</TITLE><META NAME="description" CONTENT="40.7 Animation Objects"><META NAME="keywords" CONTENT="everything"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"><META NAME="Generator" CONTENT="jLaTeX2HTML v2002 JA patch-1.4"><META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"><LINK REL="STYLESHEET" HREF="everything.css" tppabs="http://www.isi.edu/nsnam/ns/doc/everything.css"><LINK REL="previous" HREF="node560.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node560.html"><LINK REL="up" HREF="node554.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node554.html"><LINK REL="next" HREF="node562.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node562.html"></HEAD><BODY ><!--Navigation Panel--><A NAME="tex2html10040" HREF="node562.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node562.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html10034" HREF="node554.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node554.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html10030" HREF="node560.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node560.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html10036" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html"><IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="file:/usr/share/latex2html/icons/contents.png"></A> <A NAME="tex2html10038" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html"><IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="file:/usr/share/latex2html/icons/index.png"></A> <BR><B> Next:</B> <A NAME="tex2html10041" HREF="node562.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node562.html">41. Nam Trace</A><B> Up:</B> <A NAME="tex2html10035" HREF="node554.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node554.html">40. Nam</A><B> Previous:</B> <A NAME="tex2html10031" HREF="node560.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node560.html">40.6 Network Layout</A>   <B> <A NAME="tex2html10037" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html10039" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html">Index</A></B> <BR><BR><!--End of Navigation Panel--><H1><A NAME="SECTION010170000000000000000">40.7 Animation Objects</A></H1><P>Nam does animation using the following building blocks which are defined below:<P><DL><DT><STRONG>Node</STRONG></DT><DD>Nodes are created from 'n' trace event in trace file. It represents a source, host, or router. Nam will skip over any duplicate definitions for the same node. A node may have three shapes, (circle, square, and hexagon), but once created it cannot change its shape. Nodes can change its color during animation.<P></DD><DT><STRONG>Link</STRONG></DT><DD>Links are created between nodes to form a network topology. Internally nam links are consist of 2 simplex links. The trace event 'l' creates two simplex links and does other necessary setup. Therefore, for a users perspective all links are duplex links. Links can change color during the animation.<P></DD><DT><STRONG>Queue</STRONG></DT><DD>Queues need to be constructed in nam between two nodes. A nam queue is associated to only one edge of a duplex link. Queues are visualized as stacked packets. Packets are stacked along a line, the angle between the line and the horizontal line can be specified in the queue trace event.<P></DD><DT><STRONG>Packet</STRONG></DT><DD>Packets are visualized as a block with an arrow. The direction of the arrow shows the flow direction of the packet. Queued packets are shown as little squares. A packet may be dropped from a queue or a link. Dropped packets are shown as falling rotating squares, and disappear at the end of the screen. Unfortunately, due to nam's design dropped packets are not visible during backward animation.<P></DD><DT><STRONG>Agent</STRONG></DT><DD>Agents are used to separate protocol states from nodes. They are always associated with nodes. An agent has a name, which is a unique identifier of the agent. It is shown as a square with its name inside, and is drawn next to its associated node.</DD></DL><HR><!--Navigation Panel--><A NAME="tex2html10040" HREF="node562.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node562.html"><IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="file:/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html10034" HREF="node554.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node554.html"><IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="file:/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html10030" HREF="node560.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node560.html"><IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="file:/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html10036" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html"><IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="file:/usr/share/latex2html/icons/contents.png"></A> <A NAME="tex2html10038" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html"><IMG WIDTH="43" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="index" SRC="file:/usr/share/latex2html/icons/index.png"></A> <BR><B> Next:</B> <A NAME="tex2html10041" HREF="node562.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node562.html">41. Nam Trace</A><B> Up:</B> <A NAME="tex2html10035" HREF="node554.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node554.html">40. Nam</A><B> Previous:</B> <A NAME="tex2html10031" HREF="node560.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node560.html">40.6 Network Layout</A>   <B> <A NAME="tex2html10037" HREF="node1.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node1.html">Contents</A></B>   <B> <A NAME="tex2html10039" HREF="node590.html" tppabs="http://www.isi.edu/nsnam/ns/doc/node590.html">Index</A></B> <!--End of Navigation Panel--><ADDRESS>2003-09-23</ADDRESS></BODY></HTML>⌨️ 快捷键说明
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