I'm have installed Python(x,y)-2.7.2.3 on Win7 32-bit system to draw a
simple 3D animation with vpython <http://www.vpython.org/> module. The
script is shown as following, but the spyder complains with an exclamation
mark at the first line of the script and hint shows that 'from visual
import *' used; unable to detect undefined names. The script runs pretty
well in IDLE, so I'm sure the problem came from spyder. Can anyone helps
me, please ?
from visual import *
floor = box (pos=(0,0,0), length=4, height=0.5, width=4, color=color.blue)
ball = sphere (pos=(0,4,0), radius=1, color=color.red)
ball.velocity = vector(0,-1,0)
dt = 0.01
while 1:
rate (100)
ball.pos = ball.pos + ball.velocity*dt
if ball.y < ball.radius:
ball.velocity.y = abs(ball.velocity.y)
else:
ball.velocity.y = ball.velocity.y - 9.8*dt
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