Visualization requirements for 3D cadastral systems

Abstract

In Australia, the cadastre stores and represents land ownership information in subdivision plans on paper and in digital documents (PDF). For a building subdivision, ownership boundaries are commonly drawn on floor plans, with cross-sections or isometric diagrams used to represent the 3D property rights. This method has significant shortcomings for representing property interests, especially in complex multi-level developments. The bounded 3D character of these developments requires numerous plans and sections which are difficult to interpret. It is also not possible to interact with such plans, modifications are not easy or efficient, and searching and measurement can only be done manually...