3D topography: a simplicial complex-based solution in a spatial DBMS

摘要

3D modelling is becoming a subject of increasing interest today, especially within GIS. 2D models of terrain and buildings were satisfactory for applications such as map production and car navigation. However, with more precise measurement methods and more powerful computers there is an increasing demand for new ways to analyse our world. As people want to create 3D models and study their properties, they require more computer resources-more storage space, more memory, and faster processors-as these give more precise and faster simulation of real phenomena.