format  void SCL_SetRotateViewPoint (Uint16 x, Uint16 y, Uint16 z)
 Input  x: X coordinate
 Y  y: Y coordinate
  z: Z coordinate
 Output  None
 Function value  None
 Function  Sets the rotation viewpoint.
 Remarks  Executed between executing SclOpen () and executing SclClose ().
 Cannot be used with  SCL_NBG0-3. 

  format  void SCL_SetRotateCenter (Uint16 x, Uint16 y, Uint16 z)
 Input  x: X coordinate
 Y  y: Y coordinate
  z: Z coordinate
 Output  None
 Function value  None
 Function  Set the center coordinates of the rotating surface
 Remarks  Executed between executing SclOpen () and executing SclClose ().
 Cannot be used with  SCL_NBG0-3. 

  format  void SCL_SetRotateCenterDisp (Uint16 x, Uint16 y)
 Input  x: X coordinate
 y  y: Y coordinate
 Output  None
 Function value  None
 Function  Set the center point of screen rotation
 Remarks  Execute between SclOpen () and SclClose ().
 Cannot be used with  SCL_NBG0-3