Using extrusion to generate higher-dimensional GIS datasets
Ken Arroyo Ohori, Hugo Ledoux · 2013
While there is a growing interest in the use of higher-dimensional (≥4D) digital objects built from complex real-world data, their construction is in practice hampered by a lack of methods and algorithms. We present in this paper a dimension-independent extrusion algorithm for linear geometries using generalised maps. It permits us to create an (n + 1)-dimensional model from an n-dimensional one by assigning it a range along the (n + 1)-th dimension. We present our algorithm, which both optimal and straightforward to implement, using generalised maps as a base, and report on experiments in which 2D real-world GIS datasets were extruded to 3D and 4D.