> 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
>
my explanations seems to be so very bad :-(
i dont want to fill the missing background in the thumb, but i want to optimize
the
proccess of NOT defining a crop filter 100 times if i have 100 images to crop.
the only thing that has to be changed on ever image is the crop position, so on
calling
$obj->transform('myCrop', $source, $dest);
which would call a function like the one below
function cropParameters($curImageinfo, &$cropParametes) {
$cropWidth = 80;
$cropHeight = 80;
$cropParameters['x] = round(($curImageinfo['width'] - $cropWidth) / 2);
$cropParameters['y] = round(($curImageinfo['height'] - $cropHeight) / 2);
}
regards
stefan
> 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
>
--
Stefan Kilp
SK-Software, Entwicklung & Beratung
email: [email protected]
fon : +49 6151 93344-0
fax : +49 6151 93344-20
Herta-Mansbacher-Str. 98
64289 Darmstadt, Germany.
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