We recently had two related journal papers published. The first of these deals with how to create and manipulate nD representations of geographic objects. The second shows a few different ways in which such objects can be visualised. Both of them were published in open access journals, so anyone can access them!
@article{Arroyo-Ohori17a,
author = {Ken {Arroyo Ohori} and Hugo Ledoux and Jantien Stoter},
journal = {PeerJ Computer Science},
month = {jul},
note = {ISSN: 2376--5992},
title = {Visualising higher-dimensional space-time and space-scale objects as projections to {R3}},
year = {2017}
}@article{Arroyo-Ohori17,
author = {Ken {Arroyo Ohori} and Hugo Ledoux and Jantien Stoter},
journal = {Journal of Spatial Information Science},
month = {jun},
note = {ISSN: 1948--660X},
pages = {61--93},
title = {Modelling and manipulating spacetime objects in a true {4D} model},
volume = {14},
year = {2017}
}