Add matrix support

[ajfisher]

Add the ability to have a rectangular matrix of pixels and support this natively.

[ajfisher]

In multipin multiple strips will be available as well as single strip

Matrix support need to support (at minimum):

• RC, CR order
• 3 dimensional matrices
• Take single strip and split into a matrix NxM (eg 1x25 single strip can become 5x5 square)

[VictorioBerra]

Take single strip and split into a matrix NxM (eg 1x25 single strip can become 5x5 square)

This is exactly what I came here to find out if this library can do. I know its been a few years now, do we foresee this ever actually happening?

[ajfisher]

Unfortunately my time is pretty limited at the moment but PRs are gratefully received. I can help guide you through what's needed to be done too.

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On Thu, Aug 16, 2018, 04:05 Victorio Berra ***@***.***> wrote: Take single strip and split into a matrix NxM (eg 1x25 single strip can become 5x5 square) This is exactly what I came here to find out if this library can do. I know its been a few years now, do we foresee this ever actually happening? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#20 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAHRowfiyIRUcxpUxSHsXTnUwuW4DEIEks5uRGLcgaJpZM4EnR00> .

[jakepearse]

What is rc, cr order?

[ajfisher]

Row-column or column-row order. It's used to designate how you apply a 2D matrix to a 1D array.

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On Wed, Dec 12, 2018, 08:22 jakepearse ***@***.***> wrote: What is rc, cr order? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#20 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAHRo8pYG_wOXco2UjsCHzFe_llBEomNks5u4CIngaJpZM4EnR00> .

[jakepearse]

My son and I have been playing with this requirement.
Rather than messing about with a bunch of arrays, we used functions to re-map the addresses of pixels in a serpentine array.
Because node-pixel uses functions for addressing rather than presenting strips as 'array-like'.
It wouldn't take much to add cr/rc functionality, I guess.
Although it would perhaps add the need for an argument/options style object, using minor/major axis rather than column/row.
Which would probably better than a bunch of unnamed positional arguments the way we did it.
Anyway its all in a nice-and-small PR :)