Set Axis to Center via Python

On 22/06/2015 at 03:59, xxxxxxxx wrote:

Hello, 
I would like to set axis to center of an object. And as I will use it in xpresso-python node, it should only fire for once. Position will be 0,0,0. I tried script below, please help.

import c4d
from c4d import Vector as v

def setAxis(obj) :

size = obj.GetRad()
    position = obj.GetMp() + obj.GetAbsPos()
    if obj is None or not obj.CheckType(c4d.Opoint) : return False
    oldm   = obj.GetMg()
    points = obj.GetAllPoints()
    pcount = obj.GetPointCount()
    doc.StartUndo()
    doc.AddUndo(c4d.UNDOTYPE_CHANGE, obj)
    obj.SetAbsRot(v(0))
    obj.SetAbsPos(v(0))
    obj.Message(c4d.MSG_UPDATE)
    
    newm    = obj.GetMg()
    newm.off = position-size/2
    newm.v1 = newm.v1.GetNormalized()
    newm.v2 = newm.v2.GetNormalized()
    newm.v3 = newm.v3.GetNormalized()
    
    for p in xrange(pcount) :
        obj.SetPoint(p,newm*oldm*points
)
        c4d.EventAdd()
        
    obj.Message(c4d.MSG_UPDATE)
    c4d.EventAdd()
    doc.EndUndo()

def main() :
    
    global Source
    
    if Source.CheckType(c4d.Opoint) :
        setAxis(Source)

On 29/06/2015 at 02:38, xxxxxxxx wrote:

Hello,

is this thread on the same topic as in your other thread?

• Center Axis with Python
  if so, please avoid double posts.

If you want to execute a python script only once you can edit and execute a script from the Script Manager. This allows you to run scripts that can edit the scene and it's objects as desired.

A Python Xpresso Node should only be used for logic operations etc. and not to edit the current scene since the node will be executed many times.

Best wishes,
Sebastian

On 03/07/2015 at 09:40, xxxxxxxx wrote:

Hello grasycho,

was your question answered?

Best wishes,
Sebastian