you can read the source file，in draw test。i think you dont add data to pick，before pick，picker will extract the shape type you need
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IVtkTools_ShapePicker issue
VTK7.0 + OCC
I Created 2 box with OCC, and use IVtkTools_ShapePicker to pick one box , GetPickedShapesIds() always return two 0. is that mean IVtkTools_ShapePicker can only handle one IVtk_IShape or VtkActor？
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