> > CALayers don't have this bounds/frame distinction > > They do, actually. The bounds is the internal view > of the coordinate > system, and the frame is the external view.
At first this sounded incorrect, because it's emphasized that frame is just a function of other properties....but I was overlooking "transform" as one of those. Interesting...not sure if this helps clear the situation or not. > > it almost seems > > that 1 unit always corresponds to 1 pixel. How > does > > Core Animation's geometry relate to NSView's > > resolution independent geometry? > > I think you're right about the pixels. That's news > to me; I'm stumped. > Hopefully some CA expert can enlighten us. Despite the apparent help -[NSView convertPointToBase:] gives, I'd still appreciate a summary of the way all the many many CALayer (/sublayer), NSView and Quartz context transformations work together in light of resolution independence: When one draws a rectangle in a CALayer delegate, and the -drawLayer:: concatenates (and/or sets?) its own transform before drawing, when the layer has a transform, and the root parent layer has both a transform and a sublayer transform, and the host NSView has different bounds than frame, and there is resolution independence / interface scaling.....*deep breath*..... where/what order are all these transforms applied to our brave rectangle victim. And between what levels of all that does a (mouse, drawing, layer origin) point need to be transformed for use, and how? [As if that weren't confusing me enough, I'm actually also applying a cartographic projection or three to half of my source data...so being clear on the Cocoa/Core Animation/Quartz interaction would help me focus on just the map issues.] thanks, -natevw __________________________________________________ Correo Yahoo! Espacio para todos tus mensajes, antivirus y antispam ¡gratis! Regístrate ya - http://correo.espanol.yahoo.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]
