R: Circle Plot with Cross Hairs

PLTcirc {RFOC} | R Documentation

## Circle Plot with Cross Hairs

### Description

Plot an arc of a circle with cross-hairs.

### Usage

    PLTcirc(gcol = "black", border = "black", ndiv = 36,
             angs = c(-pi, pi), PLOT = TRUE, add = FALSE)

### Arguments

`gcol` | cross hairs color
`border` | border color
`ndiv` | number of divisions
`angs` | vector from angs[1] to angs[2] in radians
`PLOT` | logical, if TRUE plot
`add` | logical, if TRUE add to existing plot

### Value

list used for plotting:

`x` | x coordinates
`y` | y coordinates
`phi` | angles, radians

### Author(s)

Jonathan M. Lees <jonathan.lees@unc.edu>

### Examples

    PLTcirc(gcol = "purple", border = "black", ndiv = 36, angs = c(-pi, pi), PLOT = TRUE, add = FALSE)

    PLTcirc(gcol = NULL, border = "green" , ndiv = 36, angs = c(-pi/4, pi/4), PLOT = TRUE, add = TRUE)

[Package RFOC version 3.4-3 Index]