RFOC (version 1.0-4)

PLTcirc: 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

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)