GraphViz

Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design, machine learning, and in visual interfaces for other technical domains.

http://www.graphviz.org/

http://www.tonyballantyne.com/graphs.html

Generate graph in png file

x.dot

digraph SomeGraph {
  A -> { B C }
  B -> C
}

   1 dot x.dot -T png -Ox.png

Slackware64 14.1 install

   1 upgradepkg binutils-2.23.52.0.1-x86_64-2.txz
   2 cd /tmp
   3 wget http://graphviz.org/pub/graphviz/stable/SOURCES/graphviz-2.26.3.tar.gz
   4 tar xvzf graphviz-2.26.3.tar.gz
   5 cd graphviz-2.26.3
   6 ./configure --enable-php=no
   7 make clean
   8 make 
   9 make install

GraphViz for MoinMoin

http://moinmo.in/GraphVizForMoin

   1 # in Ubuntu/Raspbian/Debian box
   2 sudo bash
   3 apt install graphviz unzip
   4 cd /tmp
   5 wget "https://moinmo.in/GraphVizForMoin?action=AttachFile&do=get&target=MoinGraphViz-1.0rc4-brn-1.9.x.comp.zip"
   6 unzip *MoinGraphViz-1.0rc4-brn-1.9.x.comp.zip 
   7 cd /tmp/MoinGraphViz-1.0rc4-brn-1.9.x.comp/wiki/data/plugin
   8 cp * -r /home/moin/moin-1.9.11/wiki/data/plugin/ 
   9 cd /home/moin/moin-1.9.11/wiki/data/plugin/  && chown moin * -R && chgrp www-data * -R
  10 cd /tmp/MoinGraphViz-1.0rc4-brn-1.9.x.comp/umoin
  11 cp MoinLegacy /home/moin/moin-1.9.11/MoinMoin/support/
  12 cd /home/moin/moin-1.9.11/MoinMoin/support/
  13 chown moin * -R
  14 chgrp www-data * -R
  15 vim /home/moin/moin-1.9.11/wiki/data/plugin/parser/MoinGraphViz/main.py # GRAPHVIZ_TOOLS_DIR = r'/usr/bin'
  16 service nginx restart
  17 service apache2 restart

Note to configure the path of dot executable:

• wiki/data/plugin/parser/MoinGraphViz/main.py:GRAPHVIZ_TOOLS_DIR = r'C:/timwe/tools/Graphviz2.38/bin'

Windows configuration

On file <...>moin-1.9.7\wiki\data\plugin\parser\MoinGraphViz\main.py change in line 254 from close_fds=True to close_ds=False, due to error launched in Windows.

   1 def oscmd(cmd):
   2     '''instead of simply calling os.system(cmd)
   3     capture stderr and raise GraphvizRenderError if exit code != 0
   4     '''
   5     p = Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True, 
   6             bufsize=1024, close_fds=False)
   7     stdo, stde = p.communicate()
   8 
   9     if p.returncode != 0:
  10         raise GraphvizRenderError("%s\n%s" % (stdo, stde))

Test after installation

If all was installed correctly a graph should appear below

Sample 1

UML with GraphViz

UML Sample 1

http://www.ffnn.nl/pages/articles/media/uml-diagrams-using-graphviz-dot.php

UML Sample 2

http://www.lornajane.net/posts/2011/uml-diagrams-with-graphviz

UML Sample 3

http://canvoki.net/coder/resources/DotUmlUseCases.html

http://canvoki.net/coder/DotUseCases/MarUseCases.dot

UML Sample 4

http://fsteeg.wordpress.com/2006/11/16/uml-activity-diagrams-with-graphviz/

digraph untitled {
rankdir=TD
size="4,4"
edge[fontsize="11" arrowhead=open]
start[shape=circle, label="", style=filled]
end[shape=doublecircle, label="", style=filled]
action1[shape=box,style=rounded, label="action"]
action2[shape=box,style=rounded, label="action"]
action3[shape=box,style=rounded, label="action"]
if1[shape=diamond, label="decision"]
if2[shape=diamond, label="decision"]

start -> action1
action1 -> if1[headport=n]
if1 -> action2[label="condition" tailport=w]
if1 -> action3[taillabel="condition" labeldistance=2.5 tailport=e]
action2 -> if2[headport=w]
action3 -> if2[headport=e]
if2 -> end[taillabel="condition"]
}

Graphviz in MoinMoin 1.9.8 CentOS CentOS release 6.6 (Final)

   1 cd /tmp
   2 wget "https://moinmo.in/GraphVizForMoin?action=AttachFile&do=get&target=MoinGraphViz-1.0rc4-brn-1.9.x.comp.zip"
   3 unzip "GraphVizForMoin?action=AttachFile&do=get&target=MoinGraphViz-1.0rc4-brn-1.9.x.comp.zip"
   4 cd MoinGraphViz-1.0rc4-brn-1.9.x.comp/wiki/data/plugin/
   5 cp * -r /root/moin-1.9.8/wiki/data/plugin/
   6 cd ../umoin/
   7 cp MoinLegacy.py /root/moin-1.9.8/MoinMoin/support/
   8 yum install graphviz
   9 vim /root/moin-1.9.8/wiki/data/plugin/parser/MoinGraphViz/main.py
  10 GRAPHVIZ_TOOLS_DIR = r'/usr/bin' 
  11 cd /root/moin-1.9.8
  12 chown root * -R
  13 chgrp root * -R
  14 service moinmoin stop
  15 service moinmoin start