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dorukeker / gyronorm.js

JavaScript project for accessing and normalizing the accelerometer and gyroscope data on mobile devices
MIT License
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getting different orientation values from ios and Android #25

Closed jasan-s closed 7 years ago

jasan-s commented 7 years ago

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 commented 7 years ago

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 (https://github.com/dorukeker/gyronorm.js/issues/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 commented 7 years ago

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