drawCircle: Draws a circle

In recurse: Computes Revisitation Metrics for Trajectory Data

Draws a circle

Description

Draws a circle in data coordinates, so it will be a circle if the aspect ratio of the plot is 1, or else it will be appear as an ellipse.

Usage

drawCircle(x, y, radius, nv = 100, border = NULL, col = NA, lty = 1, lwd = 1)

Arguments

x	x-coordinate of circle center
y	y-coordinate of circle center
radius	radius of circle
nv	how many plotted segments
border	polygon border
col	line color
lty	line type
lwd	line width

Details

This function is useful to display a representative circle with the specified radius on a plot of revisits.

Value

invisibly, the x and y points of the drawn circle

Author(s)

Chloe Bracis <[e-mail]>

See Also

plot.recurse

Examples

data(martin)
revisits = getRecursions(martin, radius = 1)
plot(revisits, martin, legendPos = c(10, -15))
drawCircle(10, -10, 1)

recurse documentation built on Sept. 11, 2024, 6:59 p.m.