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from visual import *
from random import random, randrange
## this is mostly for experimenting with zooming and rotating
print """
Right button drag to rotate "camera" to view scene.
Middle button to drag up or down to zoom in or out.
On a two-button mouse, middle is left + right.
On a one-button mouse, middle is CTRL + mouse.
"""
def random_box ():
xx = randrange (-55,54)
yy = randrange (-55,54)
zz = randrange (-55,54)
x = randrange (-10,11)
y = randrange (-10,11)
z = randrange (-10,11)
red = random()
green = random()
blue = random()
box (pos = vector(xx,yy,zz), length=x, height=y, width=z,
color=(red,green,blue))
def wirecube (s):
c=curve (color=color.white, radius=1)
pts = [(-s, -s, -s),(-s, -s, s), (-s, s, s),
(-s, s, -s), (-s, -s, -s), (s, -s, -s),
(s, s, -s), (-s, s, -s), (s, s, -s),
(s, s, s), (-s, s, s), (s, s, s),
(s, -s, s), (-s, -s, s), (s, -s, s),(s, -s, -s)]
for pt in pts:
c.append(pos=pt)
scene.title = "Random Boxes"
side=60.
wirecube (side)
i = 0
while i < 100:
random_box()
i = i + 1
arrow(axis = (0,12,0), shaftwidth = 3.5, color=color.red )
ball=sphere(pos=(-side/2.,-side/2.,-side/2.), color=(1,1,0), radius=3)
disk=cylinder(pos=(side/2., side/2., -side/2.), color=(.3,.3,1), axis=(1,1,0),
radius=5)
xx=arange(0,4*pi,pi/10.)
spring=curve(color=(1,.7,.1), radius=0.4)
for y in xx:
spring.append(pos=(20+cos(2*y), y/2.-30, -20+sin(2*y)+30))
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