Have you seen Geometer's Sketchpad?  It would definitely be awkward
for business logic, but you can do some pretty complex things with it.
Chris Bogart

On Tue, Jun 22, 2010 at 8:09 AM, alex <> wrote:

> Hi all,
> I've become interested in visual programming languages, but a bit
> disappointed that visual notation tends to be based on topological
> rather than geometrical relationships.  In fact the only example of a
> computer language using geometrical notation I've found is the
> ReacTable and the related TurTan, which use relative orientation and
> proximity of symbols.  Are there others?
> Also, perhaps a more interesting question is, why aren't there more?
> I can see why you wouldn't want (practically) continuous parameters of
> distance involved in business logic, but how about programming
> languages for use in the arts?
> alex
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