I see. Thanks for the explanation..
I will give it a try now. Gustavo On Feb 23, 2010, at 7:35 PM, David Duncan wrote: > On Feb 23, 2010, at 10:15 AM, Gustavo Pizano wrote: > >>> Additionally, rather than changing the anchorPoint do your animation based >>> on the center of the view instead of it's frame's origin (which will also >>> continue to work as you expect should you need to do an animation on a >>> layer that has a transform). >> >> So When creating the CABasicAnimation I shall place the fromValue and >> ToValue to be the translated values? or I should set the CATransform3d with >> the translated layer position? > > > The frame property of a layer is calculated from the layer's position, > anchorPoint, transform and bounds properties. When you set the frame of a > layer, that rectangle is used to calculate the layers new position and bounds > properties using the transform and the anchorPoint. > > In general when moving a layer it is easier to change the layer's position > instead of the frame, as doing so is agnostic to the other properties of a > layer. Changing the frame or transform of a layer in order to move it tends > to lead to lots of head-meets-desk time as the developer tries to figure out > why their animation isn't working the way they expect it to. > > In the UIView case, the center property corresponds to the position property, > and the anchorPoint left at its default 0.5,0.5. > -- > David Duncan > Apple DTS Animation and Printing > _______________________________________________ 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
