On Jul 9, 2008, at 09:56:36, David Duncan wrote:
Your best solution for rendering multi-representational content in Core Animation is to use a CATiledLayer. It will automatically be called to update content as you zoom in and out (assuming you specify that the level of content exists). The drawing model is exactly the same as with a CALayer, although you can optimize the drawing a bit with a bit more knowledge.
My CAD program has a number of "parts" laid out on the canvas at the whim of the user. These parts are interconnected by the user with lines comprised of a series of orthogonal line segments (it's schematic capture CAD). There is one instance of my CALayer subclass for each of these parts, and I'm thinking I'll use one for each connected set of line segments (not sure yet).
Are you suggesting that each of these should subclass CATiledLayer instead (or provide a delegate)? I was setting the transform on the window's (root?) layer. Will that result in tile sublayers redrawing their content?
I'll read the docs on CATiledLayer, and give this a shot. Thanks! -- Rick _______________________________________________ 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]
