Re: Dynamic Image resizing for thumbnail view with correct Aspect...
Re: Dynamic Image resizing for thumbnail view with correct Aspect...
- Subject: Re: Dynamic Image resizing for thumbnail view with correct Aspect...
- From: Mike Schrag <email@hidden>
- Date: Tue, 26 Jul 2005 14:03:44 -0400
If you mean you just want the browser to show them smaller (i.e.
users will still be sent the 700 px wide version, but it will look
smaller), then you can just specify width = "200" on your WOImage and
the browse will adjust the height proportionally. If you want access
to image sizes and don't mind private frameworks, you can use
com.webobjects.appserver._private.WOImageInfo:
URL urlToImage = ...
WOImageInfo wii = new WOImageInfo(urlToImage);
int width = wii.width();
int height = wii.height();
If you actually want to create thumbnails, there are a bunch of ways,
but none of them necessarily _simple_ -- JAI, ImageMagick system
call, JNI to various image libraries, etc.
ms
On Jul 26, 2005, at 1:51 PM, Nathan Walker wrote:
does anybody know the best route to go when displaying a thumbnail
page of full-size images (with pixel widths of 700) ?
I would just like to show the thumbnails with a width of 200 pixels
but the heights all vary and I'd like them to display with no
distortion so as to keep the correct aspect ratio.
Is there a way to check the current height and width on an image
and do some calculations to get it to a width of 200 pixels and
dynamically adjust the height to maintain the correct aspect ratio ?
Thanks,
Nathan
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