In 1980 I worked with Kenny Jones (now at Digital Domain) at a place
called New World Pictures. We worked on a machine called the Elicon,
a camera control robot that was programmed in FORTH, and made movie
special effects for Roger Corman and others.
It was a beautiful piece of work - dc servo motors driven from a huge
interface panel and a PDP-11.
I liked FORTH a lot. I had an implementation of FORTH for the Apple
][ that screamed. UI was a command line.
I also liked a feature of Hypercard that was like forth - you could
redefine and intercept a lower level handler using the same name. I
guess it was a design decision to not allow that in Transcript....
but why?
sqb
Mark,
One of the great things about Forth was the overhead of just a few
machine language instructions to execute a high level function
call.
Transcript seems to require a trip around the world to jump next
door. For GUI speed stuff, it would not be a problem, but for my
array crunching stuff, I am stuck writing everything in one handler
to keep the speed up. The convenience of having an environment like
that would be very tempting to use for whatever could stand the
overhead --and that might be quit a lot of applications.
Dennis
--
stephen barncard
s a n f r a n c i s c o
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