icon=":icons/point.png"
tooltip="Select a first point"
shape_types="vertex">
+ <selection_filter id="NoConstructionSubShapesFilter"/>
</shape_selector>
<shape_selector id="secondPoint"
label="Second point"
icon=":icons/point.png"
tooltip="Select a second point"
shape_types="vertex">
+ <selection_filter id="NoConstructionSubShapesFilter"/>
+ <validator id="PartSet_DifferentObjects"/>
</shape_selector>
</source>