On Nov 25, 2009, at 7:27 AM, Paul Bruneau wrote: > I think I recognize, and I am pretty sure I have read that Sketch does things > Wrong. I see that the shape objects keep their own bounds (and frame?) > information. It seems clear to me that this is Wrong. What does Sketch do if > it ever can have two views of the same objects?
The bounding box is an intrinsic property of a geometric object, independent of how it's viewed. Unless you're talking about something like a bounding box transformed into view coordinates; I'm not familiar with the Sketch code. That would definitely be part of the view, not the model. That sort of design is often done by having a parallel per-view model that's been transformed for use in the view, and code that keeps the per-view model synced with changes to the master. Core Animation uses this sort of design. —Jens_______________________________________________ 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 arch...@mail-archive.com
