I obtained it with a runtime expression: I used (for example) the command xform -q -ws..... to store the information in a variable and reapply it to the vtx of the new face...but I wish to make it without runtime exp.
se xxx.vtx[0] is a alias for a handle teht does not truly exsist! dig into the shape nodes and its node reference thats wherre the real data ais and tehts where the connection must be made.
With this connection, maya connects the array attribute "pnts" (// Result: Connected polySurfaceShape1.pnts to polySurfaceShape2.pnts //) It represents the local space vertex position.
I have also seen the "worldMesh" attribute, but I don't know how I can use it.