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IDProjectCategoryView StatusDate SubmittedLast Update
0002562graphvizDotpublic2015-07-26 15:182015-07-28 11:33
Reporter[email protected] 
Assigned To 
PlatformVirtualBox VMOSUbuntuOS Version3.13.0-32-generi
Summary0002562: Trouble in init_rank assertion
DescriptionWhen I try to render the attached graph I get:
 'Error: trouble in init_rank',

eventually followed by:

 'dot: maze.c:315: chkSgraph: Assertion `np->cells[1]' failed.'

Dot then dumps core from the unhandled assertion.
Steps To Reproducecat | /usr/bin/dot -Tpdf -o test2.pdf
Additional InformationIf the 'rank=sink;' statement on line 170 is commented out, then this renders with no problem.

Is there some way to get around this issue, by some settings or something similar? If I comment out this line then the nodes within the block don't render nicely.

Also, my graphs in general are auto-generated so it would be desirable to have a general solution and not have to hand tune each one.
TagsNo tags attached.
VERSION2.36.0 (20140111.2315)
Attached Filesdot file icon (Attachment missing)
dot file icon (Attachment missing)

- Relationships

-  Notes
User avatar (0000957)
[email protected] (reporter)
2015-07-26 16:25

I found that if I add 'constraint="False" to all of the edges which reference the nodes in the block with 'rank=sink;' at line 170, then it doesn't crash.
User avatar (0000958)
north (administrator)
2015-07-28 11:33

I agree this is a bug, but it's very brave to mix concentrate=true, splines=ortho, packmode, ranksep, nodesep, and a bunch of other options we probably never tried in the lab.

I wish our code was more robust or did better self-checking.


- Issue History
Date Modified Username Field Change
2015-07-26 15:18 [email protected] New Issue
2015-07-26 15:18 [email protected] File Added:
2015-07-26 16:24 [email protected] File Added:
2015-07-26 16:25 [email protected] Note Added: 0000957
2015-07-28 11:33 north Note Added: 0000958

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