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I want to move objects on iPhone screen (rectangle, circle and so on) by moving iPhone.
For example, I move iPhone along X-axis and the object moves along X-axis. The same for Y,Z-axis.
How can I do this?
Can I get algorithm for it?
Thank you.
P.S:
I looked for a while and seems like it is possible using accelerometer.
You get position by integrating the linear acceleration twice but the error is horrible. It is useless in practice.
Here is an explanation why (Google Tech Talk) at 23:20. I highly recommend this video.
However the gyro mouse might work for your application, see between 37:00-38:25 in the video.
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