[BioC] fontsize in Rgraphviz

[Li Long]

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> Deepayan,
>
> We are making progress. I just updated Rgraphviz-devel. Simply adjusting
> the way adjusting my parameters to "layoutGraph" as you suggested fixed
> the font size problem! I did not have to add it at the nodeRenderInfo
> stage. Attached is a postscript file documenting the results, which
> would look prettier if I had bothered to adjust the size of the output.
>
> Unfortunately, now nAttrs$fillcolor is being ignored, even if it is
> added as an argument to noRenderInfo.

This should be honored if you render the graph via graphviz, instead of R.

> Also, I would very much like to use many of the other shapes available
> via graphviz. If I was willing to do some of the coding (I know some C),

Again, if you render the graph via graphviz, you can use any of the shapes
for nodes that graphviz supports (more than 30 of them).

At this time, you can specify your own node shapes if you render it via R,
but not via graphviz.  just the opposite to the above.

> would you point me in the right direction so that I might provide a
> patch with more shapes?

Li