c4d-reset-object-axis

c4d-reset-object-axis.py

import c4d
# Slightly modified version of Lennart's (tca studios) script from this thread: 
# http://www.plugincafe.com/forum/forum_posts.asp?TID=6600&KW=&PID=27379#27379

def main():

    if op is None: return False

    oldm   = op.GetMg()
    points = op.GetAllPoints()
    pcount = op.GetPointCount()

    doc.StartUndo()
    doc.AddUndo(c4d.UNDOTYPE_CHANGE, op)

    op.SetAbsPos(c4d.Vector(0,0,0)) #Comment out this to keep original position
    op.SetAbsRot(c4d.Vector(0,0,0)) #Comment out this to keep original rotation
    op.SetAbsScale(c4d.Vector(1,1,1)) #Comment out this to keep original scale
    op.Message(c4d.MSG_UPDATE)

    newm    = op.GetMg()

    for p in xrange(pcount):
        op.SetPoint(p,~newm*oldm*points[p])

    op.Message(c4d.MSG_UPDATE)
    c4d.EventAdd()
    doc.EndUndo()

if __name__=='__main__':
    main()

Hi, I realise it's been a while but I would like to ask for little help with this script. It does not consider that there are vertex normals tag, and when the rotation of the object is reset to zero the normals vectors remain linked to the original HPBs rotation, is there any way to improve the script and what is needed to keep the positions of the vertex normals unchanged or inherit the new rotation position? Thanks

Blast from the past :) Isn't this the same as the Reset PSR command now? Correct me if i'm wrong. Can't really remember what i used this for. :) And now that plugincafe is dead, i can't read the thread i'm linking to in the code.
So whats your usecase?

Isn't this the same as the Reset PSR command now? Correct me if i'm wrong

Reset PSR just moves the object to original axis as parent or global zero of the scene, not its axis :( Your script or something like it only resets the axis of this objects, so yeah