William F Pokorny <ano### [at] anonymousorg> wrote:

> Perhaps obvious the matrix play in this thread can act as a rotational
> interpolation.

Well now that we're going there - Bezier and other splines can all be
represented as matrix multiplications.

https://blog.demofox.org/2016/03/05/matrix-form-of-bezier-curves/

https://observablehq.com/@danburzo/the-matrix-form-of-some-common-cubic-splines

I know that clipka was talking about trying to find as much common ground for
all of the primitives as possible, so that we could have as few specialized
objects/data structures as possible, so perhaps it would good to look at a lot
of the spline/interpolation code as matrix-based.

We ought to have robust and versatile matrix methods available anyway.

Also, rotational matrices tie directly into complex numbers - so maybe there's a
way to roll that in there too.

- Bald "I want it all" Eagle

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