Thank you to every one for their responses. It would seem, however, that my question was not clear enough (you are right James).
I am going to write a music notation app. So, will "simply" be writing the music score on the display - no animation needed. My question was about visual scaling - reproducing a "sheet of music paper" and then permitting the user to zoom in and out. Hence the reference to world coordinate and screen coordinate conversions. Please note - this will *not* be using pdf documents ! Can I still achieve this with Canvas ? Is there an example of the correct way of producing this kind of scaling when using Canvas ? I will be targeting tablet systems with this. On Sunday, 12 August 2012 06:15:06 UTC+2, Dianne Hackborn wrote: > > On Sat, Aug 11, 2012 at 2:50 PM, James Black <[email protected]<javascript:> > > wrote: > >> Do you need a fast refresh rate for example? One music program I wrote >> had to turn notes on and off at the correct millisecond, under windows; >> that accuracy won't work on mobile devices. >> > You can do 60fps drawing with either OpenGL or Canvas. That is the best > you are going to get for accuracy since that is the screen refresh rate. > > -- > Dianne Hackborn > Android framework engineer > [email protected] <javascript:> > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
