Storage and retrieval of data

摘要

The set has data files containing data extracted form relational database and formatted using a quad tree structure. The data files are arranged in directories which themselves use the quad tree structure. The structure is a tree-like data structure in which each node is leaf having useful information. The data within the data files represents characteristics of objects located at particular geographical locations. Independent claims are also included for the following: (a) a method of providing a data set for real time reading and display (b) a software tool for providing a data set for real time reading and display.