Maya: Subdivide Joints

maya_subdivide_joints.py

import maya.cmds as cmds


'''
Split joint chain between 2 joints (parent/child).


Usage Example:

jnts = cmds.ls(selection=True, type='joint')
subdivide_joints(jnts[0], jnts[1], 4)

'''
def subdivide_joints (jointA, jointB, segments=2):
    newJnts = [jointA]
    dist = cmds.getAttr('{}.tx'.format(jointB)) / segments
    for i in xrange(1, segments):
        newJnt = cmds.duplicate(jointA, po=True)[0]
        if len(newJnts):
            cmds.parent(newJnt, newJnts[-1])
            cmds.setAttr('{}.tx'.format(newJnt), dist)
        else:
            cmds.parent(newJnt, jointA)
        
        newJnts.append(newJnt)
    
    cmds.parent(jointB, newJnts[-1])
    
    return newJnts