getting different orientation values from ios and Android

[jasan-s]

i wanted to use the lib to achieve the following: I have two geo points and want to point an arrow towards the destination geo point. I can successfully calculate the bearing in degrees. I am currently just using data.do.alpha but the value is different from each (ios and android) device thus the arrow points different directions as i move the phone. What am i missing?

[dorukeker]

Hello,
Since your scenario is with geolocation I assume you are using GyroNorm.WORLD as orientationBase. Google recently change how deviceorienation is interpreted in Chrome browser. This broke the alpha values in case you are using WORLD-based orientation. This was mentioned in another issue here (#24)

Chances are that even if you use the same iOS device and test with Safari and Chrome you will get different results.

Unfortunately it is not an easy fix that I can apply to GyroNorm (or the underlying library FullTilt). Please follow the other thread for updates on that one.

Let me know if I understood the problem correct and this addresses your problem.
Cheers,
Doruk

[dorukeker]

Hello @jasan-s ,
How did it go?
I'd like to close this issue if all is clear.
Let me know.
Cheers,
Doruk