It is emphasized that the query plan of object-orientedgraphic database, query controller structure of graphic database, language specification of GDQL and query optimization.
The developing methods of objectoriented and function oriented interactive graphic highways and interchanges' vertical alignments CAD software are researched.
探讨了面向对象、面向功能的公路及立交纵面线形交互式图形CAD软件开发方法。
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UML is a general and graphic modeling language in objectoriented development, also an important tool in analysing objects software engineering environments.