基于OOP技术的地图符号制作工具的设计与实现

分析了地图符号构图的规律性,提出了应用OOP技术描述地图符号的方法。对基于OOP技术设计的地图符号制作工具的实现方法作了简要介绍,分析了OOP技术设计地图符号的优越性。将地图符号的特征描述与特征再现分解开来,符号的特征描述通过对象的成员变量记录,并保存在符号库文件中。符号特征再通过对象的成员函数实现,使得符号再现可以与符号信息记录分离,符号失败与符号调用在不同系统中进行,提高了系统的整体性能。

Design and Implement of a Tool for Map Symbols Based on OOP Technology

Through analyzing the rule of map symbols' pattern ,a describing method of map symbols based on object-oriented programming technology was set forth. A tool of map symbols' making based on object-oriented programming technology was introduced. The advantages of design based on object-oriented programming technology have been analyzed in this paper too. The description of map symbol's property has been separated from its explanation and stored in files. The explanation of map symbol's property implemented through symbol object's member functions. Thus, the design and usage of map symbols can be processed in different system respectively and the performance of system has been promoted significantly.