State Chart Rendering broken?

Question

We are trying to render a state machine diagram with plantUML. Here is the plant UML code:

--------------

 

@startuml

[*] -> S1

S1 -> S2 : event

state S2{

  [*] -> S2_initial

  S2_initial  -> S3 : event

}

S3 -> S1 : event

S3 -> S2 : event

@enduml

-------------

 

When we render this at plantuml.com it looks perfectly fine. If we render it on the local

machine, we get the attached image, which is obviously broken. You can get the image

from here:

   http://voelter.de/temp/plantuml.png

 

 

We are running on Mountain lion, with the latest version of plantUML and graphviz

2.31.x. There is no 2.28 for mountain lion, hence we run on a newer version.

 

Anybody knows what the issue is?

Thanks,

Markus

voelter@acm.org

Answer 1

Hello,

We have just made some test with graphviz 2.30.x under Windows, and we have the same issue.

This is caused by some modification made by graphviz in the generated SVG file: hopefully, this is easy to correct (let's say next week).
The issue appears only with rounded rectangle, so you can use class diagram/component diagram/usecase diagram.

There is another issue : in some case, graphviz 2.30.x seems to remove some label on link. It looks like a bug, not sure about this.
You should (temporary) avoid to put labels on links.

In the future, this means that some label may not appear with PlantUML on link : but at least it will not crash like today.

Answer 2

Version 7956 is working better with graphivz 2.30/2.31 (no crash anymore), although some label may sometimes not be printed.

Very few tests have been done, so any feeback on this subject is welcome.

Regards,

Comments

Indeed it works. Thank you very much for your quick fix!!

THANKS!

Markus
voelter@acm.org

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BTW, the bug about label print may have been solved in GraphViz. See http://www.graphviz.org/mantisbt/view.php?id=2254
Regards,
Arnaud