Graphviz Issue Tracker
Mantis Bug Tracker

View Issue Details Jump to Notes ] Issue History ] Print ]
IDProjectCategoryView StatusDate SubmittedLast Update
0000720graphvizNeatopublic2007-05-14 00:492011-04-28 04:03
ReporterEduardo Lopez 
Assigned Togviz 
PlatformOS*-Linux-OS Version
Summary0000720: Problem creating fixed position networks

I am trying to create a movie of a network as it grows. In order to do
this, I first go to the final form of the network and let neato figure
out the positions. Then I take these positions and use them in the
earlier stages of the network growth so that these positions will
remain fixed until the final frame of the movie.

To attempt to create the frames, I've used two commands:

1) neato -Tpng -o frame0100.png
2) neato -Tpng -n2 -o frame0100.png

In using command 1), I imposed the positions of the nodes by writing
them in the form pos="x,y!" where x,y are taken from the final frame,
in my case frame1000.

THE ERROR I get is:

Error: gdImageCreate returned NULL. Malloc problem?

which you have described in bug report number 904 probably being due to
an integer being larger than 231. I suspect this is true because I also
get the message:

neato: allocating a -1244933K PaletteColor GD image

It all makes sense given that at the beginning my network is small and
there's a lot of white around it, just like mentioned in report 904.

The issue is that I indeed need it to be this way until I've grown
the whole network to its final size in order to see how it grows.

I cannot share the network information without a major hassle since
there is information which requieres disclosures I do not approve.

I'd appreciate help. Thanks,
Additional Information

[erg] First, please try updating to a more recent version of Graphviz.
Version 2.2 is over 2 years old. Also, in 2.2, it was necessary to
use the -s option to indicate the scale factor involved. Without it,
the numbers could get large. In more recent versions, the default
scale factor is set more sanely, so the -s is not necessary.
TagsNo tags attached.
VERSION     neato version 2.2.1 (Thu Apr 6 00:32:47 UTC 2006)
Attached Files

- Relationships

-  Notes
There are no notes attached to this issue.

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

MantisBT 1.2.5[^]
Copyright © 2000 - 2011 MantisBT Group
Powered by Mantis Bugtracker