The effect of indefeasibility and error correction on the registration process

Conventional wisdom indicates that there are two forms of register: a Register of Title and a Register of Deeds. However, we agree with Zevenbergen & Ploeger (2019, p. 7) when they state that in reality most systems are neither purely deeds or Title based and lie on a spectrum between the two poles. As binary concepts, the terms Title and Deed...

The most common geometric and semantic errors in CityGML datasets

To be used as input in most simulation and modelling software, 3D city models should be geometrically and topologically valid, and semantically rich. We investigate in this paper what is the quality of currently available CityGML datasets, i.e. we validate the geometry/topology of the 3D primitives (Solid and MultiSurface), and we validate...