That doesn't make any sense.
addEventHandler("onClientRender", root,
function()
local px, py, pz = getElementPosition(getLocalPlayer())
local x, y = getScreenFromWorldPosition(-1921.900, 536.816, 32.340)
if not x or not y then return end
local camX,camY,camZ = getCameraMatrix()
if not isLineOfSightClear ( camX , camY, camZ, px, py, pz, true, false, false, true, false, true, false, getLocalPlayer ( )) then return end
dxDrawText("LV", -1921.900, 536.816, 32.340,380.0,tocolor(255,255,255,255),2.0,"default","left","top",false,false,false)
end
)