<additionals>

    <!-- non valid x (missing) -->
    <poi id="POI_0" color="red" layer="0.00" y="-30.00" width="0.00" height="0.00"/>

    <!-- non valid x (invalid) -->
    <poi id="POI_1" color="red" layer="0.00" x="dummyX" y="30.00" width="0.00" height="0.00"/>

    <!-- valid x -->
    <poi id="POI_2" color="red" layer="0.00" x="-40.00" y="-30.00" width="0.00" height="0.00"/>

</additionals>
