On 8 Jul 2008, at 20:12, douglas a. welton wrote:
Am I reading correctly that you have two IKImageViews stacked on top on one another?
Yes. If I understand the Core Animation documentation correctly, a view can be composited with underlying views using a Compositing Filter. This seems to work okay with bog-standard NSImageViews; my problem is getting this to work with IKImageViews.
Is there a reason that you aren't using Core Image and using one of the compositing filters to produce a "difference" that you can then display?
Dynamic user interaction. If I have to use CI I'll need to write a bunch of extra code to provide the same level of functionality that IKImageView provides as standard.
do the items you are currently displaying in the two IKImageViews need to be moved (dynamically , by the user?) in relation to one another?
Correct. The two images may have different bounds, so the user needs to manually align the upper image with the lower one using Move and Zoom tools. We already have a PHP+ImageMagick-based tool that does static diffs of identically sized images, but it's not sufficiently flexible for users' needs so I've been asked to write a replacement.
Thanks, Hamish -- Hamish Sanderson Production Workflow Developer Sun Branding Solutions Ltd Tel: +44(0)1274 200 700 www.s-brandingsolutions.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
