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copied!<p>I hope that this codes clarify everything. Although the values this code returns can't be matched directly with the values of beta and gamma:</p> <p>Mozilla returns the sin of the angle so, to get the angle...</p> <pre><code>X: Math.asin(eventInfo.x)*180/Math.PI Y: Math.asin(eventInfo.y)*180/Math.PI Z: Math.asin(eventInfo.z)*180/Math.PI </code></pre> <p>Webkit returns the acceleration in each axe. Then, to get the angle... (The sing changes is just to unify returned values)</p> <pre><code>X: Math.asin(clean(eventInfo.accelerationIncludingGravity.x/GRAVITY))*180/Math.PI Y: Math.asin(clean(-eventInfo.accelerationIncludingGravity.y/GRAVITY))*180/Math.PI Z: Math.asin(clean(-eventInfo.accelerationIncludingGravity.z/GRAVITY))*180/Math.PI </code></pre> <p>Being clean: (Because sometimes, the data returned, even without accelerating the phone, it's more than 9.8)</p> <pre><code>function clean(data) { if(data<-1.0) { return -1.0; } else {if(data>1.0) { return 1.0; }else { return data; }} } </code></pre> <p>The meaning of each axe is: X-> inclination of the mobile to its right or left. Will be + if you tilt the mobile to its right (clockwise), keeping the buttons of volume up. Y-> Tells if the mobile is up -if the lock/on-off button is up- (angle +) or down (angle -). It tells the inclination of the mobile relative to the floor. (angle of Y vector with plane X-Z) Z-> Tells if the mobile screen is facing up (angle +) or upside down (angle -). It's the angle of the Z vector on the plane Y-X</p> <p>Hope this is worthy for you!</p> <p>Anyway, I'm working on some GWT classes to make working with this easier :) It's not difficult but I do not have so much time. I'll tell you</p>

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