图形编辑软件的优化设计

Optimisation of Design on Graphic Editing Software

阐述了地图数据库下图形编辑的原理、方法，ＭＤＢＧＥＳ的构成和功能，提出了库函数的建立及其分类方案，以及一整套与地图数据库接口函数的原型。在用户与ＤＢＭＳ的接口规范化方面作了有益探索。此外，还探讨了符号图形编辑的两种设想。

In GIS,graphic editing is an important link in data capturing,updating and outputing.In this thesis,the principle and method of graphic editing,and the structure and function of MDBGES based on map database are stated,and the result of the tests is analysed.The project on the establishment and classfication of program library and the prototype of a set of functions interfacing with map database are put forward according to the relation of user application programs with DBMS.A useful exploration has been made in making a standard for the interface Of user with DBMS.Two propositions on symbol graphic editing are discussed.