大比例尺数字地形图缩编方法的探讨

The generalization method of large scale topographic map based on geoway

本文针对大比例尺地形图全自动化制图综合所存在的难点,分析了影响制图综合实现的主要因素。通过生产实践提出基于规则库的一致性制图综合和交互式制图综合相结合的方法,提高计算机的人工智能水平,从而形成完善而高效的制图综合工作流程。实践证明,基于规则库的一致性制图综合和交互式制图综合方法作业效率比较高,可以顺利地完成地图缩编工作,减轻了作业强度,提高了作业精度。

Map generalization is a procedure involving much intellective reasoning action, with very wide domain. It is also a difficult problem in the field of cartography in the world. This paper makes a study on the interactive and rulebased digital generalization, and a map generalization environment for large scale topographic map is designed and realized. A number of tests have proved that map generalization can be successfully and interactively done with the cooperation of human and computer if the procedures of map generalization are wisely decomposed. Compared with the traditional manual method, this map generalization can shorten the working time to 1/4 or even. Besides, the work will become less intensive with higher precision.