object = sfroot
object = sfroot returns a handle to the top-level object in the Stateflow® hierarchy of objects. Use the root object to access all other objects in your charts when using the API.
Zoom in on a state in your chart:
old_sf_car; % Get handle to the root object rt = sfroot; % Find the state with the name 'first' myState = rt.find('-isa','Stateflow.State','Name','first'); % Zoom in on that state in the chart myState.fitToView;