Version 9 (modified by figaro, 6 years ago) (diff)

Added mscgen description and generic example

Render message sequence chart diagrams with mscgen


This plugin renders mscgen message sequence chart diagrams within a Trac wiki page:

Generic mscgen example

Mscgen is a small program that parses Message Sequence Chart descriptions and produces PNG, SVG, EPS or server side image maps as the output. Message Sequence Charts (MSCs) are a way of representing entities and interactions over some time period. Mscgen is a simplification of Graphviz. It is GPLv2 licensed.

Bugs/Feature Requests

Existing bugs and feature requests for MscgenPlugin are here.

If you have any issues, create a new ticket.

Known bugs

  1. Path to the msgcen library is hardcoded to /usr/local/bin/mscgen.
  2. Path to the cache directory is hardcoded to <trac_env>/mscgen.
  3. Cache cleanup is missing.


Download the zipped source from here.


You can check out MscgenPlugin from here using Subversion, or browse the source with Trac.


General instructions on installing Trac plugins can be found on the TracPlugins page.


msc {
  hscale = "1";


  a->b [ label = "ab()"];
  b->c [ label = "bc(TRUE)"];
  c=>c [ label = "process(1)"];
  c=>c [ label = "process(2)"];
  c=>c [ label = "process(n)"];
  c=>c [ label = "process(END)"];
  a<<=c [ label = "callback()"];
  ---  [ label = "If more to run", ID="*" ];
  a->a [ label = "next()"];
  a->c [ label = "ac1()\nac2()"];
  b<-c [ label = "cb(TRUE)"];
  b->b [ label = "stalled(...)"];
  a<-b [ label = "ab() = FALSE"];


Recent Changes

ChangeLog macro failed
No node mscgenplugin at revision 5494


Author: mclap
Maintainer: Pavel Plesov

Attachments (1)

Download all attachments as: .zip