[Biopython] Sigil color SOLID instead of transparent

[Peter Cock]

On Fri, Oct 3, 2014 at 11:55 AM, Asma Riyaz <asmariyaz23 at gmail.com> wrote:
> Hi,
>
> Attached MyImage.pdf is what I have generated so far. Features with black
> arrows have hidden the track line behind it, but this is not the case with
> other colors, track line is still visible.

Actually no. The thin black line for the axis is ON TOP of the features,
so the features (which are probably solid not transparent) cannot hide it.

If you open the PDF in Adobe Illustrator you can explore this and do
things like lift a feature above the axis line in the z-order (something
like select the shape, right click bring to front, I think).

> What I was hoping to achieve was an effect such as in solid.png
> (taken from this link http://www.reportlab.com/snippets/12/).
>
> Any suggestions?
>
> Thanks,
> Asma

Black on black is not really going to work. I would suggest you try
using a dark grey instead for the feature colour.

Also, assuming you would like to get rid of the empty black axis
links to the right of the sigils, you may want to limit the axis drawn
for each line by setting the start and end when you add each
track. See this example (ignore the cross-links):

http://news.open-bio.org/news/2012/03/cross-links-in-genomediagram/

Peter