Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!apple!vsi1!daver!athsys!stergios
From: stergios@athsys.uucp (Stergios Marinopoulos)
Newsgroups: comp.graphics
Subject: Re: LONG 3d
Message-ID: <196@cyclopes.UUCP>
Date: 21 Nov 88 22:55:58 GMT
References: <kXVEuU588k-0AnjWdT@andrew.cmu.edu>
Reply-To: stergios%athsys.uucp@sun.com (Stergios Marinopoulos)
Organization: Xpert Xports
Lines: 11

In  article  <kXVEuU588k-0AnjWdT@andrew.cmu.edu>  js9b+@andrew.cmu.edu
(Jon C. Slenk) writes:  

>On the  Macintosh, one must realize  that the graphics  are not mapped
>onto  a Cartesian  coordinate  system.   Thus,  one  should describe a
>transformation procedure to  alter the  coordinates of Cartesian space
>(x pos is  right, y  pos  is up,  and  z  pos is  into the  screen  if
>considering 3d) to Macintosh space.


I think the right hand rule gives z positive as out of the screen