Brushing and Linking

import gosling as gos

data = gos.multivec(
    url="https://resgen.io/api/v1/tileset_info/?d=UvVPeLHuRDiYA3qwFlm7xQ",
    row="sample",
    column="position",
    value="peak",
    categories=["sample 1"],
)

base = gos.Track(data).encode(y="peak:Q").properties(width=800, height=200)

top =  gos.overlay(
    base.mark_line().encode(
        x=gos.X("position:G", domain=gos.GenomicDomain(chromosome="chr1"), axis="top")
    ),
    base.mark_brush().encode(
        x=gos.X(
            "position:G",
            domain=gos.GenomicDomain(chromosome="chr1"),
            axis="top",
            linkingId="linking-with-brush"
        ),
        color=gos.value("steelBlue")
    ),
)

bottom = base.mark_line(background="steelBlue", backgroundOpacity=0.1).encode(
    x=gos.X(
        "position:G",
        domain=gos.GenomicDomain(chromosome="chr1", interval=[200000000, 220000000]),
        axis="top",
        linkingId="linking-with-brush",
    )
)

gos.stack(top, bottom)