This little code below show how to move an object in VPython. There’s two object in program, a box and a sphere. The latter object move in circular using simple sin and cos formula.
I set the angular speed 10 and radius of the motion (not the sphere) is 10. I use label to show sphere’s x and y position.
Here the result
Here the code
from visual import *
kotak = box(pos=vector(0, 0, 0), length=14, height=14, width=1, color = (0.7,0.7,0.7))
ball=sphere(color=color.green,radius=5)
ball.pos=vector(10,10,0)
timestep = 0.05
a=10
t = .0
omega= 10
px = label(pos=(0,-1,0), text='x = %1.5f' % pi)
py = label(pos=(0,+1,0), text='y = %1.5f' % pi)
while (1==1):
rate(100)
ball.pos.x = a*sin(omega*t)
ball.pos.y = a*cos(omega*t)
px.text = 'x = %1.5f' % ball.pos.x
py.text = 'y = %1.5f' % ball.pos.y
t=t+0.01
Add a comment