R: Convert to data coordinate system

reverse.circlize {circlize} | R Documentation

## Convert to data coordinate system

### Description

Convert to data coordinate system

### Usage

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

### Arguments

`x` | degree values. The value can also be a two-column matrix/data frame if you put x and y data points into one variable.
`y` | distance to the circle center (the radius)
`sector.index` | Index for the sector where the data coordinate is used
`track.index` | Index for the track where the data coordinate is used

### Details

This is the reverse function of `circlize`. It transform data points from polar coordinate system to a specified data coordinate system.

### Value

A matrix with two columns (`x` and `y`)

### Examples

    pdf(NULL)
    factors = letters[1:4]
    circos.initialize(factors, xlim = c(0, 1))
    circos.trackPlotRegion(ylim = c(0, 1))
    reverse.circlize(c(30, 60), c(0.9, 0.8))
    reverse.circlize(c(30, 60), c(0.9, 0.8), sector.index = "d", track.index = 1)
    reverse.circlize(c(30, 60), c(0.9, 0.8), sector.index = "a", track.index = 1)
    circos.clear()
    dev.off()

[Package circlize version 0.4.5 Index]