[PIL] about the difference between pudata and putpixel

[Hillairet Julien]

Le Sun, 29 Aug 2004 07:37:37 -0700, Kylotan a écrit :

> Hillairet Julien <jh at nospam.com> wrote in message news:<pan.2004.08.29.10.54.40.204024 at nospam.com>...
> 
>> Although, this code doesn't work:
>> 
>> im.putdata(color)
>> 
>> There is no error message, but the image's pixels stay black (0) ! (The
>> color matrix is not an 0-matrix !)
>> 
>> Is someone can explain me my misunderstanding of putdata ?
> 
> I think the misunderstanding is of numarray. I'm guessing that
> iterating through a 2D array returns individual rows rather than
> individual elements.
> 
> I've never used numarray before but from looking at the documentation,
> you could try this:
> 
> im.putdata(color.ravel())
> 
> or 
> 
> im.putdata(ravel(color))

Yes that's it !!

I've not understood that Image need an 1D array...

Thanks a lot.