Luz, S., & Masoodian, M. (2014). Readability of a Background Map Layer Under a Semi-transparent Foreground Layer. In Proceedings of the 2014 International Working Conference on Advanced Visual Interfaces (pp. 161–168). Como, Italy: ACM. http://doi.org/10.1145/2598153.2598174
Permanent Research Commons link: http://hdl.handle.net/10289/9418
This study investigates the readability (interpretability) of information presented on a geographical map onto which a semi-transparent multivariate selection layer has been overlaid. The investigation is based on an information visualization prototype developed for a mobile platform (tablet devices) which aimed at supporting epidemiologists and medical staff in field data collection and epidemiological interpretation tasks. Different factors are analysed under varying transparency (alpha blending) levels, including: map interpretation task (covering "seeing map" and "reading map" tasks), legend symbol and map area type. Our results complement other studies that focused on the readability characteristics of items displayed on semi-transparent foreground layers developed in the context of "toolglass" interfaces. The implications of these results to the usability of transparency variable selection layers in geographical map applications are also discussed.
This is an author’s accepted version of an article published in the Proceedings of the 2014 International Working Conference on Advanced Visual Interfaces. © 2014 ACM.