ImagesService rotation limitation

[mikaye]

Why is the ImageService rotation transform limited to only multiples
of 90 degrees? I need to freely rotate images while compositing them
and need to figure out a way to work around multiples of 90
restriction.

[Kyle Finley]

Hey mikaye,

Could you use PIL instead? It's available when using the python27 runtime.

http://code.google.com/appengine/docs/python/python27/using27.html#Configuring_Libraries

- Kyle

[mikaye]

Thanks, not sure I can use this from the Java runtime environment
unless I were to set up a separate application.

--Mike

On Feb 6, 10:48 am, Kyle Finley <kylefin...@gmail.com> wrote:
> Hey mikaye,
>
> Could you use PIL instead? It's available when using the python27 runtime.
>

> http://code.google.com/appengine/docs/python/python27/using27.html#Co...
>
> - Kyle

[Kyle Finley]

Sorry, Mike, I thought I was responding to a message on the Python group. Hopefully someone with better knowledge of Java will respond.

FWIW It is possible to run a Python or Go version of you app under the same application namespace. This can be done either as a backend or as a separate version of your app. It would then have access to the same datastore / blobstore.

- Kyle

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[mikaye]

Thanks Kyle

Just for the record... The workaround that I use now is this: if any
image in the collection needs a rotation (i.e. not a multiple of 90),
I send all images to the browser where javascript does the compositing
at the expense of the added bandwidth.

[Kyle Finley]

Nice! I was wondering if javascript might be a possibility.

When you first described your use-case fabricjs immediately came to mind:

http://fabricjs.com/image-filters/ 

- Kyle