摘要： 商用地理信息系统软件庞大，且小规模系统的二次开发成本较高。为此，提出一种在开源SharpMap类库基础上进行框架设计与开发的方法，将命令和工具作为最小单元，各功能被细化成几个命令或工具，根据开发需要将命令与工具按照类别集成在一起构成系统。实验结果表明，该方法在二次开发中应用灵活，已开发的命令和工具单元可在多个项目中重复使用。

关键词: 框架, 二次开发, 开源, 接口, 类

Abstract: The commercial Geographic Information System(GIS) software has a large scale. The costs are too high in secondary small-scale system development. In this paper, framework design and development are carried out based on the open source class library of SharpMap. Commands and tools are as the smallest unit. Feature refinements to some command or tool. Depending upon the needs of development, commands and tools are integrated together to form a system in accordance with the category. Experimental results prove the method is very flexible in application of secondary development. Developed tools and commands can be reused in multiple projects.

Key words: framework, secondary development, open source, interface, class

中图分类号: 

• N945