+ /// Returns False only if the sketch creating feature can not be visualized.
+ /// \return a boolean value
+ bool canCommitOperation() const;
+
+ /// Returns whether the object can be erased at the bounds of the active operation.
+ /// Sketch sub-entities can not be erased during the sketch operation
+ /// \param theObject a model object
+ bool canEraseObject(const ObjectPtr& theObject) const;
+