[Genome] pack format algorithm

[Khrebtukova, Irina]

Hi,

could you please explain in simple words how algorithm for "pack" format
works? For example, if I have all start & end positions (converted to
screen coordinates, therefore x coordinates are known), what's the way
to calculate y coordinates to "pack" features? I broke my head over the
wall and it still far from perfect view like in your browser.

thanks,

Irina Khrebtukova
Illumina, Hayward.