Animation as a Visual Indicator of Positional Uncertainty in Geographic Information

Carsten Kessler, Enid Lotstein

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Effectively communicating the uncertainty that is inherent in any kind of geographic information remains a challenge. This paper investigates the efficacy of animation as a visual variable to represent positional uncertainty in a web mapping context. More specifically, two different kinds of animation (a ‘bouncing’ and a ‘rubberband’ effect) have been compared to two static visual variables (symbol size and transparency), as well as different combinations of those variables in an online experiment with 163 participants. The participants’ task was to identify the most and least uncertain point objects in a series of web maps. The results indicate that the use of animation to represent uncertainty imposes a learning step on the participants, which is reflected in longer response times. However, once the participants got used to the animations, they were both more consistent and slightly faster in solving the tasks, especially when the animation was combined with a second visual variable. According to the test results, animation is also particularly well suited to represent positional uncertainty, as more participants interpreted the animated visualizations correctly, compared to the static visualizations using symbol size and transparency. Somewhat contradictory to those results, the participants showed a clear preference for those static visualizations.
Original languageEnglish
Title of host publicationGeospatial Technologies for All : Selected Papers of the 21st AGILE Conference on Geographic Information Science
EditorsAli Mansourian, Petter Pilesjö, Lars Harrie, Ron van Lammeren
Number of pages18
PublisherSpringer
Publication date2018
Pages365-382
ISBN (Print)978-3-319-78207-2
ISBN (Electronic)978-3-319-78208-9
DOIs
Publication statusPublished - 2018
EventAGILE
: The Annual International Conference on Geographic Information Science
- LUND, Sweden
Duration: 12 Jun 201815 Jun 2018

Conference

ConferenceAGILE
Country/TerritorySweden
CityLUND
Period12/06/201815/06/2018
SeriesLecture notes in geoinformation and Cartography
ISSN1863-2246

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