[graphviz-interest] Possible bug in dot

Hi

I've been swapping emails with a user (of my Perl modules which wrap 
Graphviz) in Russia, and he thinks he's found a bug in dot. His argument 
(if I understand his English :-) is that this:

echo "digraph G { a->b }" | dot -Gsize=200,400

Outputs:

digraph G {
       graph [size="20,40"];
       node [label="\N"];
       graph [bb="0,0,54,108"];
       a [pos="27,90", width="0.75", height="0.5"];
       b [pos="27,18", width="0.75", height="0.5"];
       a ->   b [pos="e,27,36.104 27,71.697 27,63.983 27,54.712 27,46.112"];
}

but that bb and size should be the same.

I'm not familiar with bb, so I'll leave it for you to decide.

Note: Our discussion started off with this entry in the Changes file, 
when he tried to use viewport:

February 23, 2004
...
- add -Gviewport="X,Y,Z,x,y"  where XY are the dimensions of a viewport
...

But, using V 2.30.1, 'man dot' does not show any reference to viewport.

Was it removed at a later date but not noted in the Changes file?

TIA.

-- 
Ron Savage
http://savage.net.au/
Ph: 0421 920 622
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