Alexandre

What would be the most simple and efficient way to convert "[jit.matrix 4 char 1200 700]" to : "[jit.matrix 4 float32 840000 1]" ? (1200*700=840000)

(This is to put this matrix into jit.buffer~ after.)

Hi,
What would be the most simple and efficient way to convert "[jit.matrix 4 char 1200 700]" to : "[jit.matrix 4 float32 840000 1]" ?  (1200*700=840000) 

(This is to put this matrix into jit.buffer~ after.) 

newbie-2d-matrix-to-1d-matrix

You can use jit.poke~ to put the signal directly from the 2D matrix 

into the buffer. For one cell per sample, use phasor~ with frequency 

(sample rate / width) to index dim[0] and so on.

On Aug 2, 2008, at 9:20 AM, Alexandre wrote:

> What would be the most simple and efficient way to convert 

> "[jit.matrix 4 char 1200 700]" to : "[jit.matrix 4 float32 840000 

> (This is to put this matrix into jit.buffer~ after.)

You can use jit.poke~ to put the signal directly from the 2D matrix  
into the buffer.  For one cell per sample, use phasor~ with frequency  
(sample rate / width) to index dim[0] and so on.

>
> Hi,
> What would be the most simple and efficient way to convert  
> "[jit.matrix 4 char 1200 700]" to : "[jit.matrix 4 float32 840000  
> 1]" ?  (1200*700=840000)
>
> (This is to put this matrix into jit.buffer~ after.)
>
> Thanks by advance,
> Alexandre


Well, perhaps it was not really clear, but i don't want to deal with any audio here, i want to convert the stuff as instantaneously as possible. Just forget my parenthese about buffer~.

What is the most Efficient way to convert a 2D matrix of 1200*700 pixels like [jit.matrix 4 char 1200 700] to a 1D matrix of 840000 pixels(*), and float32 : [jit.matrix 4 float32 840000 1] ?

I should do something like: [uzi 700] -> ....

The question is only: 
What is the most Efficient way to convert a 2D matrix of 1200*700 pixels like [jit.matrix 4 char 1200 700] to a 1D matrix of 840000 pixels(*), and float32 : [jit.matrix 4 float32 840000 1] ?

In that case, jit.scanwrap is your friend - probably to most efficient way of doing this:

Note: this "jit.scanwrap" was not in the jitter.overview.maxpat..

[Newbie] 2D matrix to 1D matrix ?