Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!jarthur!nntp-server.caltech.edu!bek-mc!rasnow
From: rasnow@bek-mc.caltech.edu (Brian Rasnow)
Newsgroups: comp.sys.mac.programmer
Subject: Drawing Points (was Novice Questions: (Quick Draw).)
Message-ID: <1991May27.181922.26368@nntp-server.caltech.edu>
Date: 27 May 91 18:19:22 GMT
References: <9768@cg-atla.UUCP> <D88-JWA.91May26212925@byse.nada.kth.se>
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Reply-To: rasnow@bek-mc.UUCP (Brian Rasnow)
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Organization: California Institute of Technology
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>In article <9768@cg-atla.UUCP> kincaid@cg-atla.UUCP (Tom Kincaid ) writes:
>
>   In looking through the QuickDraw documentation in Inside Mac.
>   Volume I, there does not seem to be a plot point primitive.
>
>The obvious, intuitive way of doing this is:
>
>MoveTo ( x , y ) ;
>Line ( 0 , 0 ) ;
>
  The Think C profiler tells me Line(0,0), Line(0,1)  and Line(1,0) are nearly
twice as slow as Line(1,1).  I have no idea why, but keep that in mind if
speed counts.  
   Regarding another posting that a Point primitive is not necessary, I find 
that philosophy interesting though I don't think I agree.  I frequently wish 
to fill a minimal area symmetrical region of the screen, which is a point.  
Yes, I can think of that as a minimal line segment, or a minimal rectangle
and call FillRect, or FillOval, but I think a point primitive could be much 
faster than any of these.


		Brian

Brian Rasnow, Caltech, Pasadena, CA 91125
rasnow@bek-mc.cns.caltech.edu
rasnow@caltech.bitnet