Aggregate Towers: Scale Sensitive Visualization and Decluttering of Geospatial Data

  • Authors:
  • James K. Rayson

  • Affiliations:
  • -

  • Venue:
  • INFOVIS '99 Proceedings of the 1999 IEEE Symposium on Information Visualization
  • Year:
  • 1999

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Abstract

We have developed a technique, Aggregate Towers, that allows Geospatial data to be visualized across a range of map scales. We use a combination of data aggregation algorithms and dynamically aggregating data markers (e.g., icons or symbols) to accommodate interactive zooming by a user while maintaining a representation that remains intuitive, consistent across multiple scales, and uncluttered. This approach implicitly generates multiple levels of overview displays from a single set of underlying data.CR Categories and Subject Descriptors: H.5.2 [Information Interfaces and Presentation]: User Interfaces; I.3.6 [Computer Graphics]: Methodology and Techniques; I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism Additional Keywords: data visualization, information visualization, aggregation, zoom, cartography