# draw.circle: Draw a circle In plotrix/plotrix: Various Plotting Functions

## Description

Draws a circle on an existing plot.

## Usage

 ```1 2``` ``` draw.circle(x,y,radius,nv=100,border=NULL,col=NA,lty=1,density=NULL, angle=45,lwd=1) ```

## Arguments

 `x,y` Coordinates of the center of the circle. `radius` Radius (or radii) of the circle(s) in user units. `nv` Number of vertices to draw the circle. `border` Color to use for drawing the circumference. `col` Color to use for filling the circle. `lty` Line type for the circumference. `density` Density for patterned fill. See polygon. `angle` Angle of patterned fill. See polygon. `lwd` Line width for the circumference.

## Details

draw.circle uses the dimensions of the plot and the x and y coordinates to draw a circle rather than an ellipse.

## Value

A list with the x and y coordinates of the points on the circumference of the last circle displayed.

## Author(s)

Jim Lemon, thanks to David Winsemius for the density and angle args

polygon

## Examples

 ```1 2 3 4 5 6 7``` ``` plot(1:5,seq(1,10,length=5),type="n",xlab="",ylab="",main="Test draw.circle") draw.circle(2,4,c(1,0.66,0.33),border="purple", col=c("#ff00ff","#ff77ff","#ffccff"),lty=1,lwd=1) draw.circle(2.5,8,0.6,border="red",lty=3,lwd=3) draw.circle(4,3,0.7,border="green",col="yellow",lty=1, density=5,angle=30,lwd=10) draw.circle(3.5,8,0.8,border="blue",lty=2,lwd=2) ```

plotrix/plotrix documentation built on Jan. 23, 2020, 1:38 p.m.