Used to plot sectors, annuli and horizons on a dielPlot() or yearlyPlot(). The polygon has an inner and outer horizon - which can be set to a fixed radius or a vector.
radialPolygon(
angle1,
angle2,
radius1,
radius2,
col = "grey",
border = NA,
rot = -pi,
angleinc = 0.01,
reverse = TRUE,
...
)
Angles for the inner line
Angles for the outer line
Radii for the inner line
Radii for the outer line
Colour of the polygon
Border colour (see polygon() for details)
Rotation of the plot, defaults to pi to match dielPlot() and yearlyPlot()
The angular increment in radians for calculating circular lines
If FALSE plots in an anti-clockwise direction
Other parameters passed to polygon()