Bigger then & Smaller Then

hi all,

Are these 2 mathematical instructions in NodeBox written like this >= and

Uh, doesn't seem to work.

Well, i want a circle to grow bigger to certain amount of size (lets say 25) and then get smaller till he reaches 0. Then it should grow bigger again.

How do i create a loop like that ?

Below is wrong, because as from the moment it's counting down, its below the value of 25 and gets stuck between adding 0.4 and substracting 0.4.

if diameter

if diameter

Arghh, code doesn't work here really well.

Hi Melan,

There was a bug in the forum when you used <= and => but that's hopefully solved now.

As to your question, the trick is to keep a direction variable which is 1 when the loop is going up and -1 when the loop is going down:

# Initialise at the top of your script.
direction = 1
diameter = 0
 

# The actual increment:
if diameter < 0 or diameter >= 25:
    direction = -direction
diameter += 0.4 * direction