dot import problems?

[Mike Lutz]

Hi all!

Is anyone out there importing dot files into omnigraffle?

I just stumbled onto GraphViz from AT&T research (Which is a directed 
graphing tool and file format called "dot") and found that it is quite 
cool stuff.  (The main site for it is - 
http://www.research.att.com/sw/tools/graphviz) (An OSX port of the AT&T 
tools are at - http://www.phil.uu.nl/~js/graphviz/)

I've been building dot files and running them through the AT&T tools.  
The graphs I have been making use the tag "constraint=false".  AT&Ts 
dot program does what I expect but omnigraffle seems like its ignoring 
the tag.

Here is the dot file I'm having OmniGraffle import:

digraph blah {
         this -> 1.1;
         this -> 1.2;
         this -> 1.3;
         node [fontsize=10];
         this -> three [fontsize=10];
         three-> tree [fontsize=10];
         tree -> that [fontsize=10];
         blah -> dang [fontsize=10];
         1.1 -> 1.2 -> 1.3 [constraint=false, dir=both];
         1.1 -> {2.1; 2.2; 2.3} [dir=both];
         1.2 -> {2.1; 2.2; 2.3} [dir=both];
         1.3 -> {2.1; 2.2; 2.3} [dir=both];
         2.1 -> 2.2 -> 2.3 [constraint=false, dir=both];
         3.1 [fontsize=28,shape=box];
         3.1 -> 3.2 -> 3.3 [constraint=false, dir=both];
         2.1 -> { 3.1; 3.2; 3.3} [dir=both];
         2.2 -> { 3.1; 3.2; 3.3} [dir=both];
         2.3 -> { 3.1; 3.2; 3.3} [dir=both];
}

If you go to http://arthur.avalon.net/~milutz/blah4.pdf you can see 
what this looks like if it is rendered with AT&Ts tool.  If you paste 
the above dot code in a text file and open it with omnigraffle (or pull 
it from http://arthur.avalon.net/~milutz/blah4.dot.txt) then you can 
see how it doesn't make a nice square out of the #.# elements in the 
same way as AT&T's (see blah4.pdf).

As I said above, I think omnigraffle is ignoring the "constraint=false" 
tag (seems to ignore "fontsize" and "dir" as well) so I built a dot 
file with out "constraint=false" and rendered it with the AT&T tools 
(http://arthur.avalon.net/~milutz/blah5.pdf and 
http://arthur.avalon.net/~milutz/blah5.dot.txt).  Its not perfectly the 
same but it is very close to what omnigraffle is doing.

Does anyone out there in mailing-list-land have any more info on the 
dot support inside of omnigraffle (which tag are supported)? Omnigroup 
folks, do you have any plans on updating the dot support? Anyone have a 
way to make a dot file render like the blah4.pdf file in omnigraffle?

Thanks!
-Mike