A central intent for f_hash is a method by which we can create pseudo
random streams from geometric, functional, color or whatever "seeds" -
on the fly.
A sub aim is to use these f_hash "streams" as input to some of the
common statistical distributions to create patterns - on the fly.
Elsewhere, I'd mentioned a plan to perhaps replace/extend the
distributions in rand.inc with those shipped with c++11 onward. This
idea hasn't panned out well - for a few reasons. Thinking rand.inc will
stick around as is for a while.
What I've decided to do in the near term is add an f_distribution()
function from which we can 'run' various distributions. I've only got a
handful going, but it looks promising.
This means of implementation also allows alternative modes which are
likely not useful in a purely statistical applications. For example, the
geometric distribution supports a continuous value return mode in
addition to the usual discrete value one.
An image is attached showing four of the implemented distributions of
f_distribution as patterns. Using a cylindrical gradient into f_hash()
as the initial seed(s) to the stream(s) required.
Bill P.
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