Yes, right now antialiased drawing isn't in Bangle.js 2 but there's actually not much reason for the omission. I'll add it in so it'll be in the 2v11 firmware.
However it's not going to be much use on Bangle.js 2 anyway because the screen itself is only 3 bit, so you only get on/off. While there's dithering I think the end effect of that will probably look worse than non-antialiased lines
If it does look worse, wouldn't it be better to leave it out?
Because otherwise code that tries to do the "right" thing actually makes things worse:
if (g.drawLineAA) g.drawLineAA(...) else g.drawLine(...) // for devices without AntiAliasing
And if you end up writing this
if (device_is_B2) g.drawLine(...) // AntiAliasing looks bad on 3-bit screen else g.drawLineAA(...)
You wonder why the Bangle.js 2 even implements AA functions.
I guess you could just make it so
*AAfunctions don't actually AntiAlias, so more code will run on both devices seemlessly, but that just seems Wrong...
Well, I was thinking that, but actually there are cases where AA might be useful...
Like maybe you render to a 16bpp offscreen buffer and half-res and render it pixel-doubled. Then you get antialiasing.
I'd argue that actually
device_is_B2is more readable anyway...
Oh right, that would be a valid use.
You'll have to start watching for misuses of AA though, I know I only noticed it shouldn't be used on the Bangle.j2 s when it started throwing errors ;-)
I decided to have a go at writing something for the Bangle2 (at least, for the emulator until they go on sale properly). I started with the tutorial and ended up creating a very basic analogue clockface.
The docs for the graphics API say for the AA versions of methods:
but it isn't clear whether this should include Bangle.js 2, or just the original. The methods don't work in the Bangle 2 emulator. My guess is that they aren't intended to (it is a different screen, lower res, fewer colours, etc), but in that case maybe the docs should be more explicit about Bangles now there are two of them?
Working non-antialiased clock just in case anyone is interested: