Add points to a plotting region

Add points to a plotting region

circos.points(
    x, y,
    sector.index = get.current.sector.index(),
    track.index = get.current.track.index(),
    pch = par("pch"),
    col = par("col"),
    cex = par("cex"),
    bg = par("bg"))

Arguments

x

Data points on x-axis, measured in "current" data coordinate
y

Data points on y-axis, measured in "current" data coordinate
sector.index

Index for the sector
track.index

Index for the track
pch

Point type
col

Point color
cex

Point size
bg

backgrond of points

Details

This function can only add points in one specified cell. Pretending a low-level plotting function, it can only be applied in plotting region which has been created.

You can think the function similar as the normal points function, just adding points in the circular plotting region. The position of cell is identified by sector.index and track.index, if they are not specified, they are in 'current' sector and 'current' track.

Data points out of the plotting region will also be added, but with warning messages.

Other graphics parameters which are available in the function are pch, col and cex which have same meaning as those in the par.

It is recommended to use circos.points inside panel.fun in circos.trackPlotRegion so that it draws points directly on "curent" cell.

See also

https://jokergoo.github.io/circlize_book/book/graphics.html#points

Examples

circos.initialize(letters[1:8], xlim = c(0, 1))
circos.track(ylim = c(0, 1), panel.fun = function(x, y) {
    circos.points(runif(10), runif(10))
})
circos.points(runif(10), runif(10), sector.index = "c", pch = 16, col = "red")
circos.clear()