SmallMultipleCanvas.getVision Method
        
 Get the current vision. (left, top and scale)
 
         
        Parameters
        
            - refresh
            
 
            - 
                
Type: Boolean - May be null
(Optional) Refresh to get the real time vision instead of the recorded vision. 
        
        Return Value
        
Type: object
        
Left, top  and scale of the current vision.