[gt-users] New feature announcement

[Sascha Steinbiss]

Brent Pedersen wrote:
> hi, very cool.

Hi Brent,

> alpha and track_selectors working great!

Good to hear that.

> is it possible to specify the "z-index" of each feature type for
> stacked/collapsed features? it seems to know to draw CDS on top,
> but is there any way to specify the order explicitly -- and/or to
> specify the bar_height per-feature_type, rather than per-image.
> how does it determine from the track_selector_func what y-order the
> features are drawn in?

Right now, this is done by drawing elements in alphabetical order 
according to their type. One could think about making this configurable by

   a) determining the order dynamically from the graph structure 
(elements for child nodes are always drawn on top of their parents' 
elements) or

   b) making it possible to specify a per-type z-index in the style file 
to facilitate arbitrary orderings. Any type with undefined ordering is 
then added in alphabetical order (or another sensible default).

What do you think is more appropriate? The first option would be more 
intuitive, while the second option leaves more room for customisation.

> i think on this page:
> http://genometools.org/customtracks.html
> diagram = Diagram(feature_index, seqid, range, style)
> should be:
> diagram = Diagram.from_index

Thanks. I'll change this right away.

> -brentp

-Sascha

-- 
Sascha Steinbiss
Zentrum für Bioinformatik
Universität Hamburg
Bundesstr. 43
20146 Hamburg
Germany

Email:  steinbiss at zbh.uni-hamburg.de
URL:    http://www.zbh.uni-hamburg.de/steinbiss
Phone:  +49 (40) 42838 7322
FAX:    +49 (40) 42838 7312