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UML Activity Diagrams with GraphViz
Date: 2006-11-17 | Tagged: programming

Cross-posted to: https://fsteeg.wordpress.com/2006/11/16/uml-activity-diagrams-with-graphviz/

Activity diagrams are somewhat doable with GraphViz, they just don't look very nice, some straight edges would be nice. And especially, only new versions of GraphViz support that tailport thing... code and rendered result below. Graphviz DOT diagram source (also embedded in HTML source)

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"]
}