Augmented reality's ability to enrich our surroundings with additional information and virtual objects makes it an ideal technology for use in tourism, especially for historical sites. Through augmented reality, we can place 3D models over ruins, to show what they had once looked like. Placing 3D objects onto real-world locations, however, requires us to first be aware of our own location and orientation in the world. In this work we develop three methods of determining device orientation relative to north. The first uses an uncalibrated magnetometer, the second requires the user to first calibrate the magnetometer, and the third determines orientation based on location data. A user study is conducted to determine which method provides the user with the best experience. The study shows that users prefer the location based method due to having a higher level of interactability.
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