以地理数据库驱动的地图表达为理论指导,在基态地图表达成果的基础上,采用增量更新制图方式生产地图。从基态继承、增量数据模型扩展、图形(注记)输出控制、地理处理工具、增量表达分类预处理、图形冲突检测与处理等6个方面探讨了增量更新制图的主要机制,并给出了基于Geodatabase数据模型的具体实现途径。
Incremental updating theory is a research hot spot in geographic information,but is rarely associated with cartography.With the geographic database-driven cartography,we can deal with the cartography of incremental updating information based on fundamental geographic information database.We study its mechanism from the following aspects: ground state inheriting,incremental model extension,graphics(annotation) output control,geoprocessing tools,classified pretreatment for incremental representation,graphics conflict management,and give Geodatabase data model based on the specific ways.