ellipse {dga}R Documentation

A Helper Function Used by Venn4 to Define the Perimeter of an Ellipse

Description

Draws the ellipses used in venn4.

Usage

ellipse(x,y,a,b,alpha)

Arguments

x

the x coordinate of the center of the ellipse.

y

the y coordinate of the center of the ellipse.

a

the x-direction radius.

b

the y-direction radius.

alpha

the angle of rotation of the ellipse

Value

points that define the perimeter of an ellipse.

Author(s)

Kristian Lum kl@hrdag.org

Examples


plot(ellipse(0,0,.5, .2, 1))

[Package dga version 1.2 Index]