[BioC] [Gviz] Plot Segmentation

[Paul Theodor Pyl]

Hello,

I have a question, I used to plot my genomic data with GenomeGraphs 
where I used trackOverlay to add a Segmentation track to a BaseTrack to 
create something like this:


Can Gviz do something like this also, I did not find any straightforward 
method in the available documentation, maybe using the segmentation as 
another sample could work (but then it would be plotted with the same 
type and would have to have the same coordinates, right?)

Could someone hint me towards an approach to create a plot like that 
with Gviz?

Cheers,
Paul