arrangeTrees method
      
void
arrangeTrees()
      
     
    
Position each separate tree.
This is called after each tree has been laid out and thus each subtree bounds are known. The #arrangement and #arrangementSpacing and Layout#arrangementOrigin properties affect this method's behavior. Please read the Introduction page on Extensions for how to override methods and how to call this base method. @expose @since 1.2
Implementation
void arrangeTrees() {
  _i4.callMethod(
    this,
    'arrangeTrees',
    [],
  );
}