Aggregate Towers: Scale Sensitive Visualization and Decluttering of Geospatial Data

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]: ThreeDimensional Graphics and Realism

• Type: Conference
• Year: 1999
• Where: INFOVIS
• Authors: James K. Rayson
• Keywords: Computer Graphics, Data Aggregation Algorithms, Geospatial Data, INFOVIS 1999, Visualization