Sorry if I was unclear: How to translate an (x, y, z) point into (x, y) screen coordinates --
For example, you have a rotating globe and want to know the screen coordinates of a certain city on the globe. Best regards Sune Watts --- On Tue, Nov 3, 2009 at 11:02 AM, Chris Wood <[email protected]> wrote: > QC supports 3D space already. There's 2 ways to show a 2D image: > Billboard (this is best for overlays and the like, and is 2D based) > and Sprite (this is similar to billboard, but exists in full 3D space > so you can move it on Z, and rotate on all 3 axis. > > Most likely, sprite will cover your needs. > > Chris > > > 2009/11/3 Sune Watts <[email protected]>: > > Hello all; > > > > I need to pin a 2D billboard onto a (moving) point in 3D space. > > > > I haven't been able to find any info on the z-axis scaling QC employs. > > > > Has anybody got a handle on mathematically converting a point in 3D space > to > > 2D screen space? > > > > > > All the best > > -SW > > > > _______________________________________________ > > Do not post admin requests to the list. They will be ignored. > > Quartzcomposer-dev mailing list ([email protected] > ) > > Help/Unsubscribe/Update your Subscription: > > > http://lists.apple.com/mailman/options/quartzcomposer-dev/psonice%40gmail.com > > > > This email sent to [email protected] > > >
_______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
