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From: Michael Levasseur <levass@gdesystems.com>
Subject: Re: Is ADA as good for graphics programming as C?  (WAS: Re: Avoiding
 the second historic mistake)
Date: 1997/06/25
Message-ID: <33B16CBB.417A@gdesystems.com>#1/1
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Organization: GDE Systems - a Tracor Company
Newsgroups: 
 comp.object,comp.software-eng,comp.lang.ada,comp.lang.eiffel,comp.lang.c,comp.lang.c++
Date: 1997-06-25T00:00:00+00:00
List-Id: <comp.lang.ada>


Hello,

If by the term "Graphics" you mean making up commands to draw
Graphical Primitive objects on a screen, i.e. Lines, Points or
Polyline; then Ada is as good as C. Depending on the "Graphics
Engine" and the command language used. I've used Graphics Engines
the used GKS or PEX commands to control the Graphics Engine.

Most of the Graphics Engines I've used were written in C or Assembly
language inorder to gain the most speed that the hardware can supply.
I don't know of any Graphics Engines that were written in Ada.
This is probably due to the fact that EVEN DoD companies, usually
buy a commercial Graphical Engine rather that creating their own.

If by "Graphics" you are refering to "Graphical User Interface",
then I've seen numerous very good GUIs that were written in Ada.
It's not quite as easy to write a GUI in Ada 83 as it is to
write the same GUI in C++. The Ada GUI though will probably be
smaller in code size than the C++ GUI.

My choices on the three would be:

Graphical Engine Code written in C for maintainability and speed.

Graphical Application written in Ada 83 or Ada 95 for maintainability,
reliability, and to keep my customers happy (DoD).

GUI written in C++ for easy of developing. 
(As long as my Code Size creap doesn't kill me :-) )

This is all just my $0.02.....