数字线划地图的生产工艺方法研究

发布时间：2018-05-08 00:29

本文选题：数字线划地图 + 地图表达　；参考：《长安大学》2013年硕士论文

【摘要】：国家空间信息基础设施建设是国民经济和社会信息化水平整体实力的重要体现，也是目前测绘行业的主要任务。国家空间信息基础设施的核心是建立国家基础地理信息数据库，以4D产品为代表，这些数据需要大量的人力与物力来维护。空间数据和地图作为基础地理信息中比较重要的两种数据，是对同一空间要素的两种不同抽象表达，本质上是一致的。多年来，空间数据与地图的一体化研究一直是地理信息领域的热点问题，行业内对其也有了高度重视，人们在这两种数据的一体化生产流程、一体化数据模型、一体化应用等多方面做了很多研究。现有的空间数据和地图经常是对同一目标区域重复生产，造成人力和物力的耗费，数据冗余大。陕西测绘局与长安大学共同提出的数字线划地图产品，是一种与软件无关的一体化数据，能同时生产这两种数据，且保持两种数据的相互关联及一致性，对国家空间基础设施的发展具有重要意义，本文对其生产工艺和生产流程进行研究。数字线划地图以拓扑地图模型为理论基础，是表达地形图要素的矢量数据集，同时保存要素间的空间关系、要素相关的属性信息、要素的地图表达数据。该产品中要素集合的几何、属性部分就是空间数据，而符号图形部分的集合就是地图。两种数据在一种数据模型下合理的表达，优化生产工序，减少中间环节，两者互为参照。它以地图表达机制实现空间数据的可视化，空间数据和地图符号具有一定的关联性，也具有独立性，符号的编辑不会影响空间数据的精度。针对数字线划地图的特点，论文中探讨了该产品的生产工艺，包括模板的制作、几何构造工艺、实体构造工艺和地图构造工艺，并对该构造工艺与传统的绘制工艺进行效率和质量方面的比较。同时，在数字线划地图的生产平台上，通过1:10000数据加工，验证了数字线划地图的生产工艺。本文主要针对数字线划地图的生产，从数据模型、生产流程、生产工艺到应用实践上都做了一系列工作，验证了构造工艺和绘制工艺两种生产工艺下的生产效率和质量，说明数字线划地图产品生产工艺的高效性与实用性价值。
[Abstract]:The construction of national spatial information infrastructure is an important embodiment of the overall strength of the national economy and the level of social information, and is also the main task of the surveying and mapping industry at present. The core of the national spatial information infrastructure is the establishment of the national basic geographic information database, represented by 4D products, which requires a great deal of manpower and material resources to maintain. Spatial data and map are two kinds of important data in the basic geographic information. They are two different abstract expressions of the same spatial elements, which are consistent in nature. Over the years, the integration of spatial data and maps has been a hot issue in the field of geographic information, and has been attached great importance to in the industry, people in these two kinds of data integrated production process, integrated data model, A lot of research has been done on integrative application. The existing spatial data and maps are often repeated production to the same target area, resulting in the cost of manpower and material resources, and the data redundancy. The digital line map product proposed by Shaanxi Survey and Mapping Bureau and Changan University is a kind of integrated data independent of software. It can produce the two kinds of data at the same time and maintain the correlation and consistency of the two kinds of data. It is of great significance to the development of national space infrastructure. Digital line map is based on topological map model. It is a vector data set to express the elements of topographic map. At the same time, it preserves the spatial relationship between the elements, the attribute information related to the elements, and the map representation data of the elements. The geometric and attribute parts of the set of elements in the product are spatial data, while the set of symbolic graphics is the map. The two kinds of data are expressed reasonably under one data model, the production procedure is optimized and the intermediate link is reduced. The two kinds of data are referred to each other. It realizes the visualization of spatial data by the mechanism of map representation. The spatial data and the map symbol are related and independent, and the editing of the symbols will not affect the precision of the spatial data. According to the characteristics of digital line map, this paper discusses the production technology of this product, including the manufacture of template, geometric construction, solid construction and map construction. The efficiency and quality of the construction process are compared with the traditional drawing process. At the same time, on the production platform of digital line map, the production technology of digital line map is verified by 1: 10000 data processing. This paper mainly aims at the production of digital line map, from data model, production process, production process to application practice, has done a series of work, has verified the production efficiency and the quality under two kinds of production technology: construction technology and drawing technology. This paper explains the high efficiency and practical value of the production technology of digital line map.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P28;P208

【引证文献】