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rhettallain/square_spiral.py

Created September 6, 2013 20:20
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Spiral square
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square_spiral.py
from pylab import *
vx=0
vy=1
x=0
y=0
xp=[0]
yp=[0]
N=40
l=1 #length of the side
c=0 #step counter
s=0 #side counter
i=0
while i <N:
x=x+vx
y=y+vy
c=c+1
if c==l:
s=s+1
vt=vx
vx=-vy
vy=vt
c=0
if s==2:
s=0
l=l+1
i=i+1
xp=xp+[x]
yp=yp+[y]
plot(xp,yp, linewidth=3)
show()
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