zbw_spaceBuffer.py 文件源码

def createSpaceBuffers(*args):
    """
    selection 1,2 = source parent, source obj
    selection 3 = target obj

    create two groups parented - named after source p,o
    snap them to source obj
    parentConstrain pGrp to sourceparent, oGrp to sourceobj

    connectAttrs of oGrp to target obj(make sure values are zeroed)

    """
    sel = cmds.ls(sl=True)

    src1 = sel[0] # parent of Ctrl (or thing you want to relate it to)
    src2 = sel[1] # ctrl
    tgt = sel[2]  # joint (should be in a group)

    tgtGrp = cmds.group(em=True, name="{0}_spaceBuffer".format(src2))
    tgtParGrp = cmds.group(em=True, name="{0}_spaceBuffer".format(src1))
    cmds.parent(tgtGrp, tgtParGrp)

    src1PC = cmds.parentConstraint(src1, tgtParGrp)
    src2PC = cmds.parentConstraint(src2, tgtGrp)

    if cmds.getAttr("{0}.t".format(tgt))[0]==(0,0,0):
        cmds.connectAttr("{0}.t".format(src2), "{0}.t".format(tgt))
    else:
        print "{0} had non-zero translate values! Skipping connection.".format(tgt)

    if cmds.getAttr("{0}.r".format(tgt))[0]==(0,0,0):
        cmds.connectAttr("{0}.r".format(src2), "{0}.r".format(tgt))
    else:
        print "{0} had non-zero rotate values! Skipping connection.".format(tgt)