zbw_splineIk.py 文件源码

def createJointsAlongCurve(crv="", numJnts=3, *args):
    jnts = []
    crvShp = cmds.listRelatives(crv, s=True)[0]
    poc = cmds.shadingNode("pointOnCurveInfo", asUtility=True, name="tmpPOCInfo")
    cmds.connectAttr("{}.local".format(crvShp), "{}.inputCurve".format(poc))
    cmds.setAttr("{}.turnOnPercentage".format(poc), 1)
    lineLen = cmds.arclen(crv)
    dist = float(numJnts)/lineLen

    for x in range(0, numJnts+1):
        perc = 1.0/numJnts
        cmds.setAttr("{}.parameter".format(poc),x*perc)
        print x*perc
        pos = cmds.getAttr("{}.position".format(poc))[0]
        jnt = cmds.joint(p=pos)
        jnts.append(jnt)
        # add one joint at the end to orient    
    return(jnts)