//! \param theAIS a presentation
virtual ObjectPtr findPresentedObject(const AISObjectPtr& theAIS) const = 0;
+ //! Returns true if the object is displayed
+ //! \param theObject a data object
+ virtual bool isVisible(const ObjectPtr& theObject) const = 0;
+
//! Select features clearing previous selection.
//! If the list is empty then selection will be cleared
//! \param theValues a list of presentations