

 The Pen/Hilbert curve demo.

 
    


    

    

    

    

    

    
 0) { 
            var a = 90;  
            var m = n - 1; 
        } else { 
            var a = -90;  
            var m = n + 1; 
        }
        
        this.turn(a); 
        this.hilbert(0 - m, s);
        this.turn(a); 
        this.go(s); 
        this.hilbert(m, s);
        this.turn(0 - a); 
        this.go(s); 
        this.turn(0 - a); 
        this.hilbert(m, s);
        this.go(s); 
        this.turn(a); 
        this.hilbert(0 - m, s);
        this.turn(a); 
    }]]>