Interactive generalization on large-scale topographical map supported by a database platform

This paper makes a study on the interactive digital generalization, where map generalization can be divided into intellective reasoning procedure and operational procedure, which are done by human and computer, respectively. And an interactive map generalization environment for large scale topographic map is then designed and realized. This research focuses on: (1) the significance of researching an interactive map generalization environment, (2)the features of large scale topographic map and interactive map generalization, (3) the construction of map generalization-oriented database platform.