Re: [Rails] Re: "Lazy" image resizing?

On Apr 5, 2011, at 4:38 PM, Robert Walker wrote:

> Walter Davis wrote in post #991085:
>> I'm looking at Dragonfly, which seems to offer what I'm looking for
>> in
>> this area: the ability to upload an image, then later request that
>> image at a different geometry, and either get a cached copy of that
>> resized image, or create and cache that image.
>>
>> Can anyone point me to alternatives? Is this something that can be
>> added to Paperclip? I've only ever used Paperclip for file uploads of
>> any kind, and have always pre-sized to all of my defined target image
>> dimensions on upload. Is there any way to hook the resample methods
>> from a regular image request?
>>
>> I'm building a CMS that allows the admin to specify the image
>> dimensions, not just choose from a list of possible sizes.
>
> There was a Railscasts episode that might prove useful for your
> system.
> It might hold some of the answers you're wanting:
>
> http://asciicasts.com/episodes/182-cropping-images

You're right, this is very cool. But I'm hoping to find a way to use
Paperclip to re-process an image that is already in the store to a new
set of dimensions that haven't been defined in the has_attached_file
call. Is there a way to pass the dimensions in at resize time? I'd
want to reload the full-size version of an image that was previously
uploaded, set its geometry to something new, and generate a new
version on the fly.

Walter

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