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IDProjectCategoryView StatusDate SubmittedLast Update
0001662graphvizSfdppublic2009-07-15 00:002011-04-28 04:03
ReporterMichael Schall 
Assigned Toerg 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionfixed 
PlatformOSx86 Windows Vista SP2OS Version
Summary0001662: sfdp layout creates blank output, neato looks good
Description
When running with the included .dot file and using sfdp layout, the output is an empty file. Using neato produces a file fine.
Command lines
<CD>
dot -Ksfdp -Tpng -O foo.dot
dot -Kneato -Tpng -O foo.dot
</CD>
Additional Information

[erg]
Are there no error messages?

What happens if you try
<CD>
   sdfp -Tps -o foo.ps foo.dot
</CD>
or
<CD>
   sfdp -Tpng -Gsize=10,10 -o foo.png foo.dot
</CD>
?

[mike] First off, there is not a sdfp.exe included in the Windows installer, so I'm using dot and changing the layout engine.

Using:
<CD>
dot -Ksfdp -Tpng -O foo.dot
</CD>
The command returns no errors, is done within a second, and gives a zero byte file as output. I added the verbose flag and have
\<A HREF="b1712.txt"\>attached\</A\> the output.

Using:
<CD>
dot -Ksfdp -Tpng -Gsize=10,10 -O foo.dot
</CD>
The command returns no errors and is done within a second.
I attached the \<A HREF="b1712.png"\>file\</A\> it returns.

Using:
<CD>
dot -Ksfdp -Tpng -Gsize=100,100 -O foo.dot
</CD>
The command returns no errors and is done within 22 seconds. With a valid image slightly over 2MB in size.

[erg]

The full sfdp layout requires a 186138K canvas. This probably blows
the allowed memory usage for the process. This is still a legal size
for bitmap files, so no warning is given.

The neato layout is just enough smaller to avoid the problem.

If in doubt, try running with no -T flag to get dot output, and look
at the bb attribute to get the size of the layout. If the memory usage
looks hefty, consider vector output (such as postscript) or use the
size attribute to reduce the size.
TagsNo tags attached.
AUXILLARY-FILEShttp://www.graphviz.org/bugs/b1712.txt [^] http://www.graphviz.org/bugs/b1712.png [^]
DATE-FIXED
FIX-COMMENT
FORMER-ID1712
INPUT-FILEhttp://www.graphviz.org/bugs/b1712.dot [^]
OUTPUT-FILE
STATUS-COMMENTFixed (16 July 2009)
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 => erg


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