University of Twente Student Theses


Automated polygon schematization for thematic maps

Listabarth, Jakob (2021) Automated polygon schematization for thematic maps.

[img] PDF
Abstract:Schematization in cartography is a particular case of abstraction, with the purpose of radically reducing visual complexity. Simplification accompanies such an abstraction, underlining the simplified quality of the map. This thesis aims to build a prototype for an interactive web-based schematization tool that processes vector polygon data, e.g. administrative boundaries, provided by the user. To achieve this goal, I (1) specified software requirements, (2) implemented a schematization algorithm and (3) integrated the algorithm’s implementation into a prototype. Lastly (4), I evaluate this prototype based on the specified requirements (step 1). Suitable algorithms exist and such a tool is feasible. Yet, it implicates challenges regarding performance and robustness. Robustness issues mainly originate in user-defined input data. therefore, they can be addressed by firstly validating and consequently rejecting invalid input, and by secondly improving how the algorithm handles unexpected conditions. Considering the long running times, meaningful feedback as one principle of usability requires attention. The prototype evaluation is based on a requirement verification. Validation-related requirements were met. However, shortcomings regarding the algorithm implementation and the Graphical User Interface (GUI) need to be fixed to allow extensive user tests. Consequently, the prototype can be iteratively improved for release.
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
Link to this item:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page