A NavigationControl control contains zoom buttons and a compass.
         
        
            Constructor
 
    
        
        tt.NavigationControl([options])
            
            
            
        
    
    
        
            
        
        
            Example
            var nav = new tt.NavigationControl({});
map.addControl(nav, 'top-left');
         
        
            Parameters
    
        
            
                | Name | Description | 
        
        
    | options Object
 default:None
 | Object with options | 
    | options.showZoom Boolean
 default:true
 | If true the zoom-in and zoom-out buttons are included. | 
    | options.showCompass Boolean
 default:true
 | If true the compass button is included. | 
    | options.showExtendedRotationControls Boolean
 default:false
 | If true the rotation buttons are included. | 
    | options.rotationStep Number
 default:10
 | The number of degrees the map rotates per click | 
    | options.showPitch Boolean
 default:false
 | If true the pitch button is included. | 
    | options.showExtendedPitchControls Boolean
 default:false
 | If true the rotation buttons are included. | 
    | options.pitchStep Number
 default:10
 | The number of degrees the map tilts per click |