Design and Implement of a Tool for Map Symbols Based on OOP Technology
YANG Chun-cheng(Xi'an Research Institute of Surveying and Mapping,1 Yantazhonglu Road,Xi'an 710054,China)
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.
【CateGory Index】： P283