[BioC] Rgraphviz fontsize

[Vincent Carey 525-2265]

> Hi all,
>
> I'm attempting to use Rgraphviz to do some plotting.
> There is no problem in producing the plots, but I would like to modify font
> sizes in the resulting graph, and this appears tricky.
> The simple fontsize setting in makeNodeAttrs seems to have no effect.

there is a function called pwayRendAttrs in the pathRender
package that manipulates graphviz fontsize; plotExG vignette illustrates
its use