DashboardCanvasService.setVision Method
        
 Sets the current vision of the canvas.
 
         
        Parameters
        
            - left
            
 
            - 
                
Type: Decimal - May be null
(Optional)Left boundary of the vision. 0 is left most, 1 is right most. 
            - top
            
 
            - 
                
Type: Decimal - May be null
(Optional) Top boundary of the vision. 0 is top most, 1 is bottom most. 
            - scale
            
 
            - 
                
Type: Decimal - May be null
(Optional) Scale of the canvas. 1 is 100%. 
            - scaleY
            
 
            - 
                
Type: Number - May be null
(Optional) The scaleY to be set.