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From: ken@uf.msc.umn.edu (Kenneth Chin-Purcell)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Object Pascal
Summary: Yes, for Lincages
Message-ID: <12754@umn-cs.CS.UMN.EDU>
Date: 11 May 89 14:38:24 GMT
References: <1794@husc6.harvard.edu>
Sender: news@umn-cs.CS.UMN.EDU
Reply-To: ken@uf.msc.umn.edu (Kenneth Chin-Purcell)
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Organization: Minnesota Supercomputer Center, Inc.
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<1794@husc6.harvard.edu> siegel@endor.harvard.edu (Rich Siegel) writes:
>	I'm kind of curious about the perception and uses of Object Pascal,
>so to scratch the itch, here are some questions:
>	- Do you use Object Pascal at all?
>	- Do you use MacApp?
>		--Rich

I started with Object Pascal using the old TML compiler and
my own shell.  A month afterwards MacApp came out, and I switched
to MPW Pascal and MacApp.

The program I was working on, Lincages, turned into my Master's
thesis.  Lincages synthesizes four bar mechanisms.  It's for
mechanical engineers who need to quickly design a linkage
that performs a certain motion, like opening a door or moving
a tray.  Since it's on a Macintosh it has cute features, like
animation and resizable links.  The program broke up into
objects (links, pivots, dyads, etc.) quite nicely.

MacApp made it practical for me to write Lincages on my own, as
a research project.  The Lincages code is about 30,000 lines.
Although I battled with some of MacApp's structure, and wound up
switching a couple of lines in the MacApp source, MacApp certainly made
Lincages a better program.

Now that I have a job, my world is Suns, Crays and X windows. 
I still diddle at home though with LSP, and have dusted off my
old shell from the TML days.  Even if MacApp and LSP become 
compatible, I might stick with my own stuff.

As far as object oriented programming goes, I've been born again
and can never go back.  I would drop Object Pascal for C++ though.

-- 
        --  Ken  (aka ken@msc.umn.edu)