Audio Enhanced Map Animation – Testing Perception of Spatial and Temporal Relations (original) (raw)
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Temporal cartographic animations are increasingly common. For users to understand a temporal animation, they must not only apply an appropriate spatial knowledge schema that allows them to interpret relative geographic location, they must also apply an appropriate temporal schema that allows them to interpret meaning inherent in the sequence and pacing of the animation. Similar to static maps, then, the animated maps should be accompanied by a legend that prompts an appropriate schema. However, with animation, the legends function, not only as an interpretation devices but also as a navigation tools. This paper describes potential legends for temporal animation and argues that choices among them should be made with regard to the nature of the temporal data. A test is proposed to assess the viability of the different legends.
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Highly interactive and dynamic visual analytics tools for supporting effective spatio-temporal analytical reasoning and decision-making have become extremely popular recently, fuelled by latest location-based technology developments (i.e., GPS enabled mobile devices, sensor networks, etc.) and the increasing availability of massive spatio-temporal data sets at highest resolution (e.g., GPS tracks of various moving entities). The popularity and use of such VA tools rests on the convincing assumption that humans are generally graphically enabled, and that they will better comprehend multidimensional dynamic spatial processes and phenomena that are congruently depicted with multivariate and dynamic displays. This line of reasoning is also reflected in the rising popularity of map animations that show the passage of time congruently with changing displays over time. Map animations are increasingly used on televised news and the World Wide Web to explain complex spatio-temporal processes to a larger non-expert audience or decision-makers (i.e., Google Earth fly throughs, weather animations, interactive election result maps, animated tsunami events, etc.) This paper reports on ongoing data analysis of an empirical study on animated map displays where the effects of animation design principles and human-map interaction design choices for depicting spatio-temporal phenomena are systematically assessed for spatial inference and decision Fabrikant et al. | GeoVA workshop | GIScience 2008 | 2