Bernard,
Maybe something like this:
# PYTHON CODE
import win32com.client
from win32com.client import constants
from win32com.client import Dispatch
XSIMath = Dispatch('XSI.Math')
# Get the items Transforms
oItemATransform = oItemsA.Kinematics.Global.Transform
oItemBTransform = oItemsB.Kinematics.Global.Transform
oItemCTransform = oItemsA.Kinematics.Global.Transform
oRotA = XSIMath.CreateRotation()
oRotB = XSIMath.CreateRotation()
oRotC = XSIMath.CreateRotation()
oItemATransform.GetRotation(oRotA)
oItemATransform.GetRotation(oRotB)
#Create Quaternions.
oRotA.GetQuaternion(q1)
oRotB.Quaternion(q2)
#q1 = q1 - q2
q1.SubInPlace(q2)
oRotC.SetFromQuaternion(q1)
oItemCTransform.SetRotation(oRotC)
oItemsC.Kinematics.Global.Transform = oItemCTransform
# END PYTHON CODE
Nicolas Langlois
Senior/Lead Rigger/TD
Buzz Image
Bernard Lebel wrote:
Hello,
I'd need some guidance here. Say I have 3 objects. I want the third
object to get the rotational difference between the first two.
In a simplified example, the first object has rotx 25.0, the second
has rotx 15.0, so I'd want the third object to get rotx of 10.0.
I'm not sure at all where to go from there, using the XSI math
objects. Do I have to perform a subtraction for every axis of the
rotation?
Thanks
Bernard
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