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revision 1.193 by benja, Sat Feb 15 23:24:57 2003 UTC revision 1.194 by Vegai, Sat Feb 15 23:25:16 2003 UTC
# Line 257  in either the coordinate system of the Line 257  in either the coordinate system of the
257  virtual paper (e.g., the margins of the web page being scrolled)  virtual paper (e.g., the margins of the web page being scrolled)
258  or an external coordinate system, independent of the page  or an external coordinate system, independent of the page
259  (e.g., in another window).  (e.g., in another window).
260  This is originally because of performance: it is most efficient to update  This was originally done for performance: updating
261  a single, rectangular (or rectangular, rectangularly obscured) area  a single, rectangular (or rectangular, rectangularly obscured) area
262  of screen.  of screen is most efficient.
263  For the same reason, smooth scaling is only seldom used.  For the same reason, smooth scaling is only seldom used.
264    
265  With modern graphics hardware, there is no need to be limited to rectangular sections  With modern graphics hardware, there is no need to be limited to rectangular sections

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