vertsel = lx.eval('query layerservice verts ? selected')
pos = lx.eval("query layerservice vert.wpos ? " + vertsel)
posx = (pos[0])
posy = (pos[1])
posz = (pos[2])
lx.eval("select.type center")
lx.eval("select.center")
lx.eval("center.setPosition %s %s %s WORLD "%(pos[0], pos[1], pos[2]))