circlize (version 0.4.1)

circlize: Convert to polar coordinate system

Description

Convert to polar coordinate system

Usage

circlize(x, y, sector.index = get.current.sector.index(),
    track.index = get.current.track.index())

Arguments

x

Data points on x-axis. The value can also be a two-column matrix/data frame if you put x and y data points into one variable.

y

Data points on y-axis.

sector.index

Index for the sector to convert the coordinates

track.index

Index for the track to convert the coordinates

Value

A matrix with two columns (theta and rou). rou is measured in degree.

Details

This is the core function in the package. It transform data points from data coordinate system (in a specific cell) to the polar coordinate system.

Examples

# NOT RUN {
pdf(NULL)
factors = c("a", "b")
circos.initialize(factors, xlim = c(0, 1))
circos.track(ylim = c(0, 1))
# x = 0.5, y = 0.5 in sector a and track 1
circlize(0.5, 0.5, sector.index = "a", track.index = 1)
circos.clear()
dev.off()

# }