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From: ecwu61@castle.ed.ac.uk (R Renwick)
Newsgroups: comp.sys.acorn
Subject: Re: Drawing lines in C
Message-ID: <8810@castle.ed.ac.uk>
Date: 1 Mar 91 11:55:51 GMT
References: <29216.9102281711@olympus.cs.hull.ac.uk>
Organization: Edinburgh University
Lines: 43

In article <29216.9102281711@olympus.cs.hull.ac.uk> rst@cs.hull.ac.uk (Rob Turner) writes:
>Geoffrey Ballinger writes:
>
>>OK, How does one do it in ML (;-)?
>
>You call a C library routine from your ML program, I guess :-).
>
	An ML programmer call a C lib routine :-( 
Arghhhhhhhhhhhhhhhhhhh!

If it can't be done in ML alone, it's not worth doing ;-)

	Geoff's original comment was about drawing lines in ML.  Here's
the standard CS4 approach at Edinburgh Uni:

	1) Get some overhead projector pens (water soluble)
	2) Run ML program and output co-ordinates of the object to be plotted
	3) Use a ruler and plot the co-ords on the screen using OHP pen
	4) Recalulate the object's co-ords
	5) Use damp cloth to remove drawing from the screen
	6) Goto (3)

	I really don't see the problem here, it's fast, efficient and
requires less room than the C equivilent which takes nearly 300 giga
bytes ;-)


Rik

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    ############	Richard Renwick		ecwu61@uk.ac.ed.castle
   #            #	Computer Science 4	OR rlr@uk.ac.ed.lfcs
  @   ~~~  ~~~   @	University of Edinburgh
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