Data structure of a point of interest and method for use and application of a point of interest with data structure

摘要

A data structure for a point of interest (POI) and a method for use and application of POI information with the data structure, and is applied in a handheld device. The POI information for a single POI is sorted based on attributes of the POI and the sorted sets of POI information are included in folders, file names or POI information. As such, when a locating operation for the POI information is requested, the amount of operations for locating the handheld device may be reduced and processing thereof may be sped up. Further, the sorting technology with respect to the POI information corresponding to the POI may be performed based on an attribute district of the POI. A plurality of sets of POI information thus obtained may be compressed to a single set of POI information so that the total information stored in the handheld device may be reduced.