How to get up/gravity-vector from 3-axis accelerometer data?

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    Accelerometer Data
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SUMMARY

This discussion focuses on extracting gravity vector data from 3-axis accelerometer readings for an iPhone augmented reality application. The user seeks comprehensive resources or formulas that explain the process, including the necessary trigonometry for converting accelerometer data into a usable format. The original source of the accelerometer data is referenced, indicating a need for a 360-degree solution. The inquiry highlights the importance of understanding both the data interpretation and the mathematical principles involved.

PREREQUISITES
  • Understanding of 3-axis accelerometer data
  • Familiarity with trigonometric functions
  • Knowledge of iOS development and Swift programming
  • Experience with augmented reality frameworks, such as ARKit
NEXT STEPS
  • Research how to implement 3-axis accelerometer data processing in Swift
  • Learn about ARKit's integration with accelerometer data for augmented reality applications
  • Study trigonometric transformations for converting raw accelerometer data into gravity vectors
  • Explore existing libraries or frameworks that simplify accelerometer data handling
USEFUL FOR

iOS developers, augmented reality enthusiasts, and anyone interested in processing accelerometer data for mobile applications.

Gerra
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Sorry for the question duplication, but I've spent hours googling, and just have no idea where to start.

Just started an iPhone augmented reality application project, and stuck.
The accelerometer data provided this way - http://www.tuaw.com/2007/09/10/iphone-coding-using-the-accelerometer/".

The other problem is to get the data in 360 degrees.

The best would be a site/article/post/anything that explains me the whole problem/solution from the ground up, but if there is any "ready-made" formula with all the trigonometry, would appreciate as well.

If there's any advice, please don't hesitate to share with me, thanks in advance.
 
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