Geoyasgui: The geosparql query editor and result set visualizer

W. Beek, E. Folmer, Luuk Rietveld, J. Walker

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

8 Citations (Scopus)
176 Downloads (Pure)


The Netherlands' Cadastre, Land Registry and Mapping Agency - in short Kadaster - collects and registers administrative and spatial data on property and the rights involved. This includes for ships, aircraft and telecommunications networks. Doing so, Kadaster protects legal certainty. The Kadaster publishes many large authoritative datasets including several key registers of the Dutch Government (Topography, Addresses and Buildings). Furthermore Kadaster is also developing and maintaining the PDOK shared service, in which about 100 spatial datasets are being published in several formats, including an incredible amount of detailed geospatial objects. Geospatial objects include all plots of land, all buildings, all roads and all lampposts. These objects are spatially and/or conceptually related, but are maintained by different data curators. As a result these datasets are syntactically and architecturally disjoint, and using them together currently requires non-trivial human labor. In response to this, Kadaster is currently publishing its geo-spatial data assets as Linked Open Data. The standardized query language for Linked Open Geodata is GeoSPARQL. Unfortunately, current tooling does not support writing and evaluating GeoSPARQL queries. This paper presents GeoYASGUI, a GeoSPARQL editor and result-set viewer with IDE capabilities. GeoYASGUI is not a new software product, but an integration of and a collection of updates to existing Open Source libraries. With GeoYASGUI it becomes possible to query the rich Open Data assets of the Kadaster.

Original languageEnglish
Title of host publicationFOSS4G-Europe 2017 – Academic Track, 18–22 July 2017, Marne La Vallée, France
Number of pages4
Publication statusPublished - 5 Jul 2017
EventFOSS4G Europe 2017 - École Nationale des Sciences Géographiques (ENSG), Marne-la-Vallee, France
Duration: 18 Jul 201722 Jul 2017
Conference number: 3

Publication series

NameThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Volume XLII-4/W2
ISSN (Print)1682-1750


ConferenceFOSS4G Europe 2017
Abbreviated titleFOSS4G-E
Internet address


  • IDE
  • Linked open data
  • Open government
  • Semantic web


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