boolean function ( ) { return this . visible ; }
returns true if this layer is visible should be displayed , and false otherwise . concode_field_sep boolean visible concode_elem_sep EventListenerList listenerList concode_field_sep void setVisible concode_elem_sep void removeChangeListener concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep void notifyListeners concode_elem_sep Object clone concode_elem_sep void addChangeListener concode_elem_sep boolean hasListener concode_elem_sep void readObject