pointscircunference: Calculates a handwritten circunference

In xkcd: Plotting ggplot2 graphics in a XKCD style

Description

This function estimate points to draw a handwritten circunference.

Usage

pointscircunference(x=0, y=0, diameter=1, ratioxy=1,
                    npoints= 16, alpha= runif(1, 0, pi/2))

Arguments

x	A numeric value. Coordinate x of the center of the circunference.
y	A numeric value. Coordinate y of the center of the circunference.
diameter	A numeric value. Diameter fo the circunference.
ratioxy	A numeric value. Ratio x to y.
npoints	Number of points (including the limits).
alpha	Numeric. Angle to begin to calculate the circunferece.

Details

It calculates a circunference in a XKCD style.

By default, the data are smoothed using a Bezier curve. It gives 60 points.

Value

A data frame with the points of the circunference.

Examples

plot(pointscircunference(x=0, y=0), ylim=c(-1,1), xlim=c(-1,1))
plot(pointscircunference(x=0, y=0), ylim=c(-1,1), xlim=c(-2,2))
plot(pointscircunference(x=0, y=0, ratioxy=2),  ylim=c(-1,1), xlim=c(-2,2))

xkcd documentation built on May 2, 2019, 4:47 p.m.