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- To: <xtech>
- Subject: Regions
- From: Hugh Hoover <heh>
- Date: Sat, 11 Nov 89 12:01:59 PST
The smalltalk version of regions is now (essentially) complete. Well, ok,
it's about done for discrete, linear regions, where we now have the following:
DiscreteSet (not done yet...)
The implementation of DiscreteInterval requires bounded regions. It is
possible to alter for unbounded regions, but I won't do it unless we have
a concrete code requirement for it. (in fact, i may just not do it :-)
The lambda operations (intersect, union ...) are limited to be between
DiscreteInterval and DiscreteInterval or:
DiscreteIntervalUnion and DiscreteInterval or:
DiscreteSet and DiscreteSet.
The implementation can be extended as required for better polymorphism.
(except that I think it is inappropriate to build a DiscreteSet of Integers
and then do operations with DiscreteIntervals or their Unions)
On to the Translation!