Abstract
The present study explores how the design of the exocentric view aid affects the acquisition of survey knowledge in virtual environments. The exocentric view was provided by either a 3D floor map, a 3D building map or the elevation of viewpoint in air. Participants navigated a virtual multilevel building and their survey knowledge was measured by the judgment of spatial relative direction. The results showed that (1) the accuracy of spatial judgment along the horizontal direction and response time were improved for participants with the exocentric view aid; (2) the accuracy of spatial judgment along the vertical direction was worst in the condition with a 3D floor map; (3) in general participants with a 3D building map performed best. The data suggested that the large scale of an exocentric view aid and the increased number of exocentric perspective through which the spatial layout is observed can facilitate the acquisition of survey knowledge in a virtual building. Potential applications of the findings include the design of a 3D map for navigation in both real and virtual buildings.
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