destroy method
void
destroy()
inherited
Called to free up any resources due to chart going away.
Implementation
void destroy() {
// Walk them in add order to support behaviors that remove other behaviors.
for (var i = 0; i < _behaviorStack.length; i++) {
_behaviorStack[i].removeFrom(this);
}
_behaviorStack.clear();
_behaviorRoleMap.clear();
for (final selectionModel in _selectionModels.values) {
selectionModel.clearAllListeners();
}
}