面向地质成图的GIS符号库设计与实现

发布时间：2018-05-21 08:54

本文选题：地质符号库 + 参数化数据结构　；参考：《辽宁工程技术大学》2015年硕士论文

【摘要】：GIS符号库技术是解决数字化地质成图的重要手段,现有的GIS制图软件都具有符号库体系,能完成大部分的地质符号的制作。但是这些GIS符号库系统有的没有提供使用接口,有的提供了调用接口的功能但对开发环境有特殊要求。本论文研究面向地质成图的GIS符号库系统来满足中国测绘科学研究院研制的“地质工程师三维助手”软件的地质符号可视化需求。本文综合已有的GIS符号库技术,经过对我国地质制图标准《区域地质图例GB958-99))的分析和总结,研究了符合我国国情的面向地质成图的GIS符号库的关键技术,本论文研究内容如下：1)本论文研究了符号库TrueType字体图元的关键技术,它是全矢量地质符号库的基础。首先利用FontCreator软件工具制作了TrueType格式的地质点图元库；然后将制作的地质TrueType点图元库应用在符号库系统中；最后论述了利用Windows平台提供的字体访问接口读取TrueType点图元的方法。2)根据地质符号的特点,采用面向对象思想设计地质符号库的参数化数据结构。设计的基本图元类型有线、填充多边形、折线和TrueType字体。图元通过组合和配置属性形成地质点状符号、线状符号和面状符号,形成完整符号库结构。3)研究了地质符号库功能的三大模块,分别为编辑模块、存储模块和绘制模块。符号库编辑模块利用MFC的窗口和控件技术设计了地质符号库的编辑界面并分类设计了符号的编辑方法；符号库存储模块设计符号的组织方式,并采用TXT文件与TrueType文件存储,进而完成符号的输出、输入与解读功能；绘制模块基于GDI与GDI+技术,针对地质点符号,线符号,面符号的数据结构特点,分类设计了符号绘制算法。4)采用面向对象的C++编程语言,完成面向地质成图的GIS符号库结构和功能的类和接口设计。实现了一个具有地质点、线、面符号制作功能的符号库原型系统。
[Abstract]:GIS symbol library technology is an important means to solve the digital geological mapping. The existing GIS mapping software has symbol library system and can complete most of the geological symbols. However, some of these GIS symbol library systems do not provide the interface, some provide the function of calling the interface, but have special requirements for the development environment. This paper studies the GIS symbol library system for geological mapping to meet the requirement of geological symbol visualization developed by China Institute of surveying and Mapping. This paper synthesizes the existing GIS symbol library technology, through the analysis and summary of the geological mapping standard of our country < GB958-99], studies the key technology of the GIS symbol library oriented to geological map, which conforms to the national conditions of our country. This paper studies the key technology of TrueType font element, which is the foundation of the full vector geological symbol library. Firstly, the geological point element library in TrueType format is made by using FontCreator software tools, and then the geological TrueType point element library is applied in the symbol library system. Finally, the method of reading the TrueType point elements by using the font access interface provided by Windows platform is discussed. According to the characteristics of geological symbols, the parametric data structure of geological symbol library is designed by object-oriented thought. Designed for basic element types wired, filled polygons, broken lines and TrueType fonts. This paper studies the three modules of geological symbol library function, which are editing module, storage module and drawing module, by combining and configuring attributes to form geological dot symbol, linear symbol and plane symbol, and form complete symbol library structure. The symbol library editing module uses MFC window and control technology to design the geological symbol library editing interface and classifies the symbol editing method, the symbol library storage module designs the symbol organization mode, and uses the TXT file and TrueType file storage, and uses the symbol library storage module to design the symbol organization mode, and uses the TXT file and the TrueType file storage. The drawing module is based on GDI and GDI technology, aiming at the data structure characteristics of geological point symbol, line symbol and surface symbol. Class and interface design of the structure and function of GIS symbol library for geological mapping is completed by using object-oriented C programming language. A symbol database prototype system with geological point, line and surface symbol making function is implemented.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P208

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