Year: 2018

We are happy to announce a CartoTalk by Menno-Jan Kraak, University of Twente, on  Wednesday, 9 May 2018.

Abstract: The content of an Origin and Destination matrix informs about the nature of movement and connectivity between locations. These could be point locations, like airports, or regions, like countries. The type of movement or flow can be qualitative (different airline flying between two airports) or quantitative (the number of migrants between two countries), or both. Traditionally this type of data is visualized in flowmaps. In these maps flows are often represented by arrows of different colors and width to represent the character of the flow between an origin and a destination. However, flow maps also tent to become quickly visually cluttered. Additional problems arise when time series have to be displayed too. How to solve this problem? A link between alternative visualizations, such as cartograms, chord diagrams, tree maps etc. could be useful, but in some of these alternative approaches the geography gets lost and time is lacking. In our suggested solution we concentrate on the design of alternative visualizations of the matrix itself. The matrix represents attribute space and will be linked to the (flow) map. The presentation will discuss several options on how to include time in these visualizations as well. Among the alternatives are several three-dimensional designs that allow for interaction to brush time

Menno-Jan Kraak is professor of Geovisual Analytics and Cartography at the University of Twente / ITC. Currently he is head of ITC’s Geo-Information Processing Department. He is also President of the International Cartographic Association (ICA) for the period 2015-2019. He wrote more than 200 publications, among them the books ‘Cartography, visualization of geospatial data’ (with Ormeling) , and ‘Mapping time’. He is a member of the editorial board of several international journals in the field of Cartography and GIScience.

Wednesday, 9 May 2018, 10:00
EI 1 (Petritsch Hörsaal)
Gußhausstraße 25, Stiege VIII, 2nd floor

We are happy to announce this year’s first  CartoTalk by Amy Griffin, RMIT University in Melbourne, on Monday, 23 April 2018.

Abstract: The task of the cartographer has become in some ways much easier since the advent of computers. For example, you no longer have to worry about smearing ink from your scribing pen or pasting Zipatone onto your overlay. A few clicks on a computer and it’s possible to create a basic map. Yet, in other ways cartographers face more challenges than they ever have before. People now use maps in many more places and to support many more tasks than they did in the past, and there is a bewildering array of different devices upon which maps can be displayed. Our behaviour with maps has also changed. Some people simply blindly follow where the GPS tells them to go, occasionally resulting in their injury or death (Milner 2016). Many others of us don’t bother to look at a map before we set out to find our way to a new place because we know that we can pull a phone out of our pocket along the way to check our location. And maps now respond to user inputs in ways in which they could not when they were simply printed on paper. For example, touchscreen displays coupled with internet access allow almost instantaneous and (almost) effortless panning and zooming. Yet, these new interactions lead to cognitive challenges that did not exist when viewing a paper map, whose full extent can be taken in at a glance – locating a zoomed map extent’s location relative to the full map extent.

While cartographers have directed attention to thinking about the map’s purpose and a few limited kinds of map user characteristics for some time, the philosophy of user-centred design, which systematises some of this thinking, arose in the 1980s and these ideas began to be applied more directly within cartography in the mid to late 1990s. New ideas have since expanded the remit of factors considered in user centred design to include interaction design (Cooper et al 2014), user experience design (Norman 2013), and the consideration of emotions in addition to classical cartographic thinking about map perception and cognition. In this presentation, Amy Griffin will provide an overview of the user-centred design process and the methods and techniques they use to do user-centred cartographic design (e.g., user requirements analysis, formative evaluation, eye-tracking), as well as where the state of the art stands in terms of new thinking about user-centred design as it can be applied to cartography (Roth, 2015; Griffin et al., 2017).

Amy Griffin is a Senior Lecturer in Geospatial Science in the School of Science at RMIT University in Melbourne. She’s the co-chair of the ICA Commission on Cognitive Issues in Geographic Information Visualisation. Her research interests include perceptual, cognitive and affective issues related to geographic information use, applications of GIS to historical geography, and GIScience applications to health geography. 

Monday, 23 April 2018, 9:15-10:45
Seminar room 127, Gußhausstraße 27-29, 3rd floor