Track density must be taken in account when displayed

[pbordron]

Data are from ensembl:

• top track (target): Arabidopsis_lyrata
• right track (query): Arabidopsis_thaliana

Wiggle files were computed this way with sequenza-utils 3.0 with window of 1000:

zcat Arabidopsis_lyrata.v.1.0.dna.toplevel.fa.gz | sequenza-utils gc_wiggle -w 1000 -o Arabidopsis_lyrata.v.1.0.dna.toplevel.fa.gc.wig -f -
zcat Arabidopsis_thaliana.TAIR10.dna.toplevel.fa.gz | sequenza-utils gc_wiggle -w 1000 -o Arabidopsis_thaliana.TAIR10.dna.toplevel.fa.gc.wig -f -

Tooltips display correctly work, right track display correctly.

[pbordron]

When zooming, the track is here, but faint. It seems a color scale issue

[pbordron]

Top track is twice longer than right track. High track density is the cause of problem.

We need to bin each track into fragments, and take the average value of the bin. When zooming, the binning must be recomputed.

For bed5, we need to think about which tooltip content is displayed when hovering (there is no tooltips for wiggle)