3Bader M and Weibel R. Detecting and Resolving Size and Proximity Conflicts in the Generalization of Polygonal Maps [ C ] // 8th International Cartographic Conference. Stockholm, 1997: 1525-1532.
4Plazanet C. Measurements, Characterization and Classifi cation for Automated Line Feature Generalization [J].In Proceeding of AutoCarto, 1995, 12 : 59-68.
5Li ZhiLin and Openshaw S. A Natural Principle for the Objective Generalization of Digital Ma P [J]. CGIS, 1993, (1) : 19-29.
