Lodestones and Leylines: Gracefully Constraining Movement in Multiscale

This paper introduces a technique to help users in a graphic multiscale environment move between locations of interest faster and prevent them from getting lost. The technique constrains movement to direct paths between salient objects or views of objects. Based on an indication of approximate direction from the user, the system predicts the desired destination, and then uses this prediction to compute a path and guide movement. Using this technique, users perform fewer physical actions and experience less disorientation.