Add support of `-Goverlap=scale` flag

[Velnbur]

I'm currently trying to do the same as in Python:

sfdp -x -Goverlap=scale -Tpng ./assets/graph.dot > ./assets/data.png

But I can't figure out how to pass -G flag

[xflr6]

Hi. There is currently no support for the -G flag in https://graphviz.readthedocs.io/en/stable/api.html#graphviz.render.

I guess you could try to use subprocess.run() from the stdlib to run that rendering command from Python (documentation) in the meantime.

[Velnbur]

As I understood, graphviz Python lib already does the running of the standard graphviz tooling under the hood. So in may case, I can do so, but do you want to add that to the Python lib?

[xflr6]

running of the standard graphviz tooling under the hood

That's the sole purpose of this library: making it easier to run http://graphviz.org from Python (i.e. an interface for Python). :)

do you want to add that to the Python lib?

IIUC this is a feature request: that's generally fine of course. It just might take a while until someone gets around to imlementing it (if you are not interested in doing so yourself). I just tried to suggest a possible workaround until it is is implemented.

[Velnbur]

I just tried to suggest a possible workaround until it is implemented.

Thank you for that!

So I'll keep this issue for now, until somebody (or even me) will find a way to add that