> Apologies if I'm missing something but is there any reason why we can't do
> image rotation on the client using the canvas JavaScript api?

Client side rotation takes ages, especially with big files.

> Agreed! Most of that probably should be non-destructive editing that keeps
> the original and applies crop/rotate/filters along with thumbnailing as
> necessary.

I suggest that we keep status quo. It has worked perfect for years. Just fixing 
thumbs does not fix the file itself and we want to have the file itself fixed.

> Date: Fri, 17 Jul 2015 19:30:44 +0800
> From: [email protected]
> To: [email protected]
> Subject: Re: [Wikitech-l] Provide a well-performing API to rotate an image
> 
> Apologies if I'm missing something but is there any reason why we can't do
> image rotation on the client using the canvas JavaScript api?
> 
> On Thu, Jul 16, 2015 at 3:45 PM, MZMcBride <[email protected]> wrote:
> 
> > Brion Vibber wrote:
> > >Allowing override of the thumb rotation would provide you real time
> > >rotation...
> > >
> > >I'm not sure about the need to rotate the original file; ideally original
> > >files should be left as-is and kept archival.
> >
> > In my opinion, we need to solve image rotation as part of a larger project
> > to support in-browser rasterized image manipulation. A bot shouldn't be
> > necessary here. We should have the ability, in a Web browser, to crop,
> > rotate, and make other basic manipulations to rasterized images. The fact
> > that we have a media repository using software called MediaWiki that
> > doesn't include an in-browser basic photo editor is pretty silly.
> >
> 
> Agreed! Most of that probably should be non-destructive editing that keeps
> the original and applies crop/rotate/filters along with thumbnailing as
> necessary. That'll take some more infrastructure work though.
> 
> Of course if you're going to draw on a picture that'll require uploading a
> new version.
> 
> -- brion
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