How to set vertex position in object local coordination in MEL?

[yao-yansi]

hi ,
I know how to get the vertex position in local coordination:
     pointPosition -l pCubeShape1.vtx[5];
but  how to set the vertex position in local coordination.
If I do this:
    setAttr pCubeShape1.vtx[5] -type "float3" 5.213509 1.300865 -1.31991
it sets the tweaks value, it is not what I want.

So could you give me any suggestion on this topic?
Thank you.

[joojaa]

move -a -ls 5.213509 1.300865 -1.31991  pCube1.vtx[5];

it sets the tweaks value, it is not what I want.

hmm... well see you don't really have much of a option here. Its not about setting the tweak its about actually setting the tweak you need at the point in history you need it. See shape nodes dont have control over the input because of the way maya works so they always modify the tweak so not to be overridden by the nodes downstream. If you really need the data downstream then redirect it to another node downstream.