电子地图符号构成变量及其生成模式的研究与实践

在电子地图符号化的过程中，视觉变量是关键。本文通过分析电子地图条件下视觉变量以及符号构成元素在符号生成过程中的不足，提出了符号构成变量的概念；研究了符号构成变量的内涵及其表现形式，探讨了基于符号构成变量的多种符号生成模式；在此基础上实现了电子地图符号快速生成模块,对理论进行了验证，实验证明能够提高电子地图符号的科学性和美观性，且便于技术实现。对电子地图条件下符号构成变量及其生成模式的研究，一方面加深了对视觉变量的认识，促进了电子地图制图理论的发展；另一方面，理论联系实际，也为电子地图制图技术的发展提供了新的途径，将促进电子地图符号自动生成、电子地图制图个性化、自动化和智能化的发展。

Constitution Variables and Generation Modes of Electronic Map Symbols

In the process of symbolization of electronic map, visual variable is the key. Through the analysis of shortages of visual variables and symbol constitution elements in the process of symbolization in the situation of electronic map, concept of constitution variables is brought forward. Then, profound meanings and representation forms of constitution variables are studied, and multifold symbol generation modes are discussed based on constitution variables. At last, electronic map symbol fast generation module is made to validate the theories, which proves that it is easier to draw symbols with computer and the symbols are preciser and prettier. On one hand, study of constitution variables and generation modes can make us understand visual variables deeply and boost the development of electronic map theories. On the other hand, it will also provide new method to the development of electronic mapping technologies and promote the evolution of automatization symbolization, individuation mapping, automatization mapping and intellectualized mapping.