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IDProjectCategoryView StatusDate SubmittedLast Update
0001671graphvizDotpublic2009-07-23 18:442011-04-28 04:03
ReporterOisin Mac Fhearai 
Assigned Togviz 
PrioritynormalSeverityminorReproducibilityalways
StatusacknowledgedResolutionopen 
PlatformOS*-*-*OS Version
Summary0001671: dot hangs on some input with tailport&headport&same rank
Description



The following input (a reduction of an example of dot
syntax on wikipedia) causes dot to hang indefinitely (or... at least
for 3 or 4 minutes now, which is effectively forever!) on my dual-core
machine. By removing any element from the sample input, dot will
process the file in less than a second.
Steps To Reproduce

digraph g {
    A1 -> B1
    A2 -> B2
    A3 -> B3
    A2 -> A3
    B1 -> B3 [label="xyz" tailport=s headport=s]
    B2 -> B3
    { rank=same; B1 B2 B3 } }

Additional Information

[erg] The base problem is that the spline router produces an incorrect
route, which goes wildly outside the given boxes.
The code recognizes something has gone wrong. This is usually a case
where increased sampling helps but since a line segment is involved,
finer sampling doesn't help.
TagsNo tags attached.
AUXILLARY-FILES
DATE-FIXED
FIX-COMMENT
FORMER-ID1722
INPUT-FILE
OUTPUT-FILE
STATUS-COMMENT*
VERSION     2.24
Attached Files

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- Issue History
Date Modified Username Field Change
2011-04-28 04:03 user1 New Issue
2011-04-28 04:03 user1 Assigned To => user1


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