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    This task shows how to create curves from a scan or a set of scans.
     The Curve from Scans action tries to create curves  
    
      - with the defined tolerance, 
 
      - with the least possible  number of segments of the least possible 
      order.
 
     
    The Curve from Scans action proposes a dynamic definition of 
    split points.  | 
  
  
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    More information is available in
    Parameters for Curve from Scan. | 
  
  
    
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    Open the
    
    CurveFromScan.CATPart model from the samples directory. For a better 
    understanding, some images below show only one scan.  | 
  
  
    
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Click Curve from Scan
        
      and select a set of scans.   
      The Curve from Scan dialog box is displayed.  
           
       
      The scan is displayed in the "Polyline+Point" 
          mode with the current graphic symbol.  
          By default, the end points are fixed. 
            
           
     
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      - Scan modifications are not dynamic. 
 
      Click Apply to take new parameter values into account. 
      - The scans can be selected in the specification tree.
 
     
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Click Smoothing.  
      - 
      
Click Apply. A temporary curve is displayed in 
      white, indicating the tolerance is met. 
            
       
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Change the Split Angle value to 
      60. A Split point is automatically inserted at the angle. 
            
       
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In the dialog box, click
        
      icon to display the curvature analysis: 
            
       
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Release
        
      and now click
        
      to display the maximum deviation  
      and
        
      to display the order and the number of segments: 
            
       
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Click OK to exit the action and create the 
      curve(s).  
      Curve.x elements are created in the specification tree. The 
      segmentation display is erased.  
     
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