LACS05_Nagon.java

/**
Nagon.java  MrG 2012.0605
purpose:    I'm sick of triangles!
required files: Nagon.java      main class
        Turtle.java     derived class
        StdDraw.java        graphics class
translator: javac Nagon.java
interpreter:    java Nagon N
*/
public class Nagon
{
    public static void main(String[] args)
    {
        int N = Integer.parseInt(args[0]);
        double step = Math.sin(Math.PI/N);
        double angle = 360/N;
        Turtle poly = new Turtle(0.5,0,angle/2);
        for(int i = 0; i<N; i++)
        {
            poly.goForward(step);
            poly.turnLeft(angle);
        }
    }
}