zbw_rig.py 文件源码

def boundingBoxCtrl(sel=[], prnt=True, *args):
    """
    creates a control based on the bounding box
    selList (list) - list of obj to use to create control
    prnt (bool) - whether you want to parent the obj to the ctrl
    """

    if not sel:
        sel = cmds.ls(sl=True, type="transform")

    if sel:
        box = cmds.exactWorldBoundingBox(sel) #[xmin, ymin, zmin, xmax, ymax, zmax]
        X = om.MVector(box[0], box[3])
        Y = om.MVector(box[1], box[4])
        Z = om.MVector(box[2], box[5])

        #get bbox lengths along axes
        lenX = (X.y - X.x)
        lenY = (Y.y - Y.x)
        lenZ = (Z.y - Z.x)
        # print lenX, lenY, lenZ

        ctrl = createControl(name="ctrl", type="cube", color="pink")

        cvs ={"xyz":[5, 15],"-xyz":[0, 4],"xy-z":[10, 14],"x-yz":[6, 8],"-x-yz":[3, 7],"-x-y-z":[2, 12],"x-y-z":[9, 13],"-xy-z":[1, 11]}

        for a in cvs["xyz"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.y, Y.y, Z.y))
        for a in cvs["-xyz"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.x, Y.y, Z.y))
        for a in cvs["x-yz"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.y, Y.x, Z.y))
        for a in cvs["-x-yz"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.x, Y.x, Z.y))
        for a in cvs["xy-z"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.y, Y.y, Z.x))
        for a in cvs["-xy-z"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.x, Y.y, Z.x))
        for a in cvs["-x-y-z"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.x, Y.x, Z.x))
        for a in cvs["x-y-z"]:
            cmds.xform("{0}.cv[{1}]".format(ctrl, a), ws=True, t=(X.y, Y.x, Z.x))

        # center pivot on ctrl
        cmds.xform(ctrl, cp=True)

        # get ctrl back to 
        wsPos = cmds.xform(ctrl, ws=True, q=True, rp=True)
        cmds.xform(ctrl, ws=True, t=(-wsPos[0], -wsPos[1], -wsPos[2]))
        cmds.makeIdentity(ctrl, apply=True)
        cmds.xform(ctrl, ws=True, t=wsPos)

        if prnt:
            cmds.parent(sel, ctrl)
        cmds.select(ctrl)

        return(ctrl)