[Lib2geom-devel] pw_sb restructure proposal

[mgsloan <mg...@gm...>]

I just had an idea for a possible restructure of the pw_sb end of things.
Sadly, ACSpike is mostly right, the 2geom WoC is over.  I have to focus on
school etc., not to mention C++ was starting to piss me off again..  I
seriously get the feeling that haskell + dependant types (something that
doesn't really exist...) could fit much of 2geom in 1000 lines - or at
least, most of the functions would be unnecessary.

True, I'm the main pw_sb guy, however, I've got a few possible ideas for
review:

First off, I think I recall rearing that SBasis was considered undefined
outside [0,1].  In my opinion, if we have pw_sb continue it's extreme
segments, SBasis should only really care about the interval [0, 1] in
regards to the BezOrds that make it up.

Anyway, my main plan is to combine md_pw_sb and pw_sb, generalizing the
concept of pointwise.  I think there is no real utility in having different
cuts for different dimensions, though I could be wrong - most md_pw_sb
operations seem to require cut equivalence, and thus make partition calls.

Pointwise <SBasis>
Pointwise <MultidimSBasis>

or, I suppose we could go abbreviation style:

pw<sb>
pw<md_sb>

All that is required for point-wise-ification would be a portion(double
from, double to) method.

Looking back on this plan, it seems like a good one.  Maybe enough to shake
my dissatisfaction with C++ :P