What has Athens to do with Jerusalem?: the potential of spatial-temporal analysis methods to interpret early Christian literature

The early Christian apologist Tertullian (ca. 160 - ca. 230 CE) queries in his De<br/>praescriptione haereticorum: “What indeed has Athens to do with Jerusalem? What concord is there between the Academy and the Church? What between heretics and Christians?” As the question raised by Tertullian is about the relation between different disciplines...

Modelling and managing massive 3D data of the built environment

A 3D city model is a digital representation of the spatial features in an urban<br/>environment. Buildings, terrain, vegetation, water bodies, etc. all form an integral part of a 3D city model. The possibility to enrich these city models with additional application-specific information, whether new semantics or geometry, further increases their...

Geospatial Data on the Web

Geospatial data is an increasingly important information asset for decisionmaking, from simple every day decisions like where to park your car, to national and international policy on topics like infrastructure and environment.<br/>Because of the location aspect, geospatial data is often the linking pin between different datasets and therefore...

Geographical point cloud modelling with the 3D medial axis transform

A geographical point cloud is a detailed three-dimensional representation of the geometry of our geographic environment. Using geographical point cloud modelling, we are able to extract valuable information from geographical point clouds that can be used for applications in asset management, crisis management, city and landscape planning, and...

Level of detail in 3D city models

The concept of level of detail (LOD) describes the content of 3D city models and it plays an essential role during their life cycle. On one hand it comes akin to the concepts of scale in cartography and LOD in computer graphics, on the other hand it is a standalone concept that requires attention. LOD has an influence on tendering and...

Higher-dimensional modelling of geographic information

Our world is three-dimensional and complex, continuously changing over time and appearing different at different scales. Yet, when we model it in a computer using Geographic Information Systems (GIS), we mostly use 2D representations, which essentially consist of linked points, lines and polygons. These representations are relatively easy to use...