On Wed, 13 May 2009, Stefan Kilp [sk-software] wrote:

> i try to crop a square from the middle of a picture (mostly it is the 
> important part). 
> the square is needed for a thumb list. 
> 
> example ( a 80x80 square form the middle of an image)
> 
> image 200x200 -> crop 60,60 80x80
> 
> image 300x1000 -> crop 110, 460  dim 80x80
> 
> image 100 x 20 -> crop 10,0 80x20
> 
> the problem is that the parameter for the filter has to be defined before the 
> image is 
> processed. so right now i have to get the image size, define a filter, get 
> next image, get 
> imagesize, define filter, and so on.
> 
> thats why i was asking for a kind of callback function for the filter so i 
> can define crop 
> dynamicly

Ah, we have a specific function for this, the "filledThumbnail" filter:

http://ezcomponents.org/docs/tutorials/ImageConversion#creating-thumbnails

and

http://ezcomponents.org/docs/api/trunk/ImageConversion/ezcImageThumbnailFilters.html

regards,

-- 
Derick Rethans
eZ components Product Manager
eZ systems | http://ez.no
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