omegalib node hierarchy and rotation example

rotateSample

from omega import *
from euclid import *
# needed for radians()
from math import *

a = SceneNode.create('a')
b = SceneNode.create('b')

a.addChild(b)

# set position of a relative to b
b.setPosition(Vector3(0,1,0))

# set position of a: after this, world position of b will be (1,1,0)
a.setPosition(Vector3(1,0,0))

# apply 90 degrees yaw to a: b will rotate around a's center (1,0,0)
#
a.yaw(radians(90))