[Biopython] two tracks on same level when using GenomeDiagram

[Peter Cock]

It might be the "greytrack" which has some options, but I think the
most expedient option to to remove it (or part of it) in the final stage
of image polishing by hand.

We are basically tricking GenomeDiagram here - it originally expected
all the tracks to span the same genomic co-ordinates but at some
point was extended to support a start/stop, which allows some tracks
to be shorter/longer than others (with the cross-links and this kind of
figure being the motivation).

Peter

On Mon, Jun 25, 2018 at 2:45 PM, Adam Witney <awitney at sgul.ac.uk> wrote:
>
> Great thanks Peter, that’s very helpful.
>
> So I can now create the effect with a white SeqFeature, surrounded by
> two thin black SeqFeatures, to create the vertical black lines (at contig
> boundaries). Do you know if there is a way to hide the horizontal black
> line that runs through the whole track? (hide it just for the spacer region
> that is)
>
> Thanks
>
> Adam