期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2010
卷号：XXXVIII-4-8-2/W9
页码：114-119
出版社：Copernicus Publications
摘要：Since 1985 the ICC has been creating and updating topographic and thematic databases and deriving cartographic products using automatic symbolization and semi-automatic generalization. After describing the workflows used to update the ICC databases and the derived products, the paper describes the main aspects of ongoing projects for optimizing updating processes such as extending the data models for supporting incremental updating and versioning, the mechanisms for conveying updated data to the users, and the web based harvesting of information. In addition, the paper describes the prototype developed together with the Harbour Authority of Barcelona and the City of Barcelona for the collaborative updating of topographic data at large scale, and the project of updating the Street database that will be developed together with the municipalities
关键词：Incremental updating; 2D and 2.5D databases; datamodel; generalization; web harvesting; GML; WFS
