[PD] pix_mulitblob and matrix

[Hans-Christoph Steiner]

Submit an updated help patch to the patch tracker :)

.hc

On Dec 13, 2009, at 9:30 AM, olsen wrote:

> Hi
> mtx_slice finally fullfills my need to get certain elements like  
> rows/colums of a matrix. might be nice to have this listed in the  
> matrix-help.pd down in the 'see also help for' section?
> greets
> ø
>
>
> olsen wrote:
>> IOhannes m zmoelnig wrote:
>>> olsen wrote:
>>>> hi
>>>> thanks to IOhannes indications i'm feeding my pix_mulitblob  
>>>> output into
>>>> the iemmatrix now. as long as there're enough blobs in the  
>>>> picture it
>>>> works pretty nice. but as soon as there're less blobs than given  
>>>> in the
>>>> argument to pix_multiblob i get:
>>>> error: $43: argument number out of range
>>>> error: $44: argument number out of range
>>>
>>> without looking at the patch, i can tell you that this is because  
>>> you
>>> are actually _not_ using iemmatrix for handling the matrix.
>>> instead your patch tries to manually parse the data using dollargs  
>>> and
>>> whatelse; which obviously fails if there are too few arguments  
>>> (because
>>> the matrix is too small)
>> indeed i'm using matrix - at least i'm trying to - but i might  
>> handle the matrix data the wrong way. i could not find indications  
>> within the matrix help on how to handle the data 'correctly' means  
>> without gettin this error. so the way i solved it within the  
>> attached patch might be stupid, but i'll appreciate any alternative!
>>>
>>>> ...
>>>> for all the arguments of undetected blobs. and as soon as there's  
>>>> no
>>>> blob in the picture the pd-shell reports:
>>>> matrix : corrupt matrix passed
>>>
>>> this indicates that you _are_ using iemmatrix here.
>>> if no blobs are detected, pix_multiblob will output a somewhat  
>>> illegal
>>> matrix with zero rows (and a number of columns).
>>>
>>> now iemmatrix complains that this is not a legal matrix.
>>> probably putting a [mtx_check] helps to get rid of the error (or  
>>> not)
>> no mtx_check doesn't change it
>> thanks for your help
>> olsen
>>>
>>>> do i do something wrong?
>>>
>>> no.
>>>
>>> fgmasdr
>>> IOhannes
>
> -- 
> ETs DNA will not be televised
>
>
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