Get the meta data of a cell
Get the meta data of a cell
get.cell.meta.data(name, sector.index = get.current.sector.index(),
track.index = get.current.track.index())name |
Only support one name at a time, see "details" section |
sector.index |
Index of the sector |
track.index |
Index of the track |
The following meta information for a cell can be obtained:
sector.indexThe name (index) for the sector
sector.numeric.indexNumeric index for the sector
track.indexNumeric index for the track
xlimMinimal and maximal values on the x-axis
ylimMinimal and maximal values on the y-axis
xrangeRange of xlim. It equals to xlim[2] - xlim[1]
yrangeRange of ylim
xcenterCenter of x-axis. It equals to (xlim[2] + xlim[1])/2
ycenterCenter of y-axis
cell.xlimMinimal and maximal values on the x-axis extended by cell paddings
cell.ylimMinimal and maximal values on the y-axis extended by cell paddings
xplotDegrees for right and left borders of the cell. The values ignore the direction of the circular layout (i.e. whether it is clock wise or not).
yplotRadius for top and bottom borders of the cell.
cell.widthWidth of the cell, in degrees.
cell.heightHeight of the cell, simply yplot[2] - yplot[1]
cell.start.degreeSame as xplot[1]
cell.end.degreeSame as xplot[2]
cell.bottom.radiusSame as yplot[1]
cell.top.radiusSame as yplot[2]
track.marginMargin for the cell
cell.paddingPadding for the cell
The function is useful when using panel.fun in circos.track to
get detailed information of the current cell.
CELL_META is a short version of get.cell.meta.data.
sectors = letters[1:4]
circos.initialize(sectors, xlim = c(0, 1))
circos.trackPlotRegion(ylim = c(0, 1), panel.fun = function(x, y) {
print(get.cell.meta.data("xlim"))
})
print(get.cell.meta.data("xlim", sector.index = "a", track.index = 1))
circos.clear()Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.