（精选）数字化测图技术及其应用.docVIP

摘 要 随着科学技术的进步和计算机技术的迅猛发展及其在测绘行业领域的渗透，以及电子全站仪、GPS-RTK技术等先进测量仪器和技术的广泛应用，地形测量有传统的白纸测图向电子全站仪、GPS-RTK等先进的测图方式上发展，测图过程也实现了自动化和数字化。为适应时代经济建设的需要，数字化测图技术应运而生。数字测图与传统测图相比，以其特有的高自动化、全数字化、高精度的优势迅速的在测绘界得到了应用，并具有良好的发展前景。目前，数字化测图技术已越来越多地用于测绘生产中，数字地形图也在地理信息、城市规划设计、水电工程、环境工程、地震预报、现代国防建设等部门得到广泛的应用。当前，数字测图虽在国内已有逐步的走向成熟的趋势，但是，在数字测图时人有一些问题的存在。像数字测图中在不同坐标系中的数据如何才能相互转化利用，图形曲线怎样才能更好的与实际物体相拟合以及控制测量的快捷有效实施，这都是数字测图中该解决的问题。本文在比较系统的对数字化测图技术进行论述的基础下，主要讲述了数字化测图中坐标的转换方法、控制测量中施测的基本内容、以及地形图的图形曲线的拟合方法、数字图的优点以及数字图的应用。从而使我们在进行数字测图时能够快速、高效、高质量的顺利开展，不但提高了我们测绘工作的效率，而且增加了我们测绘成果的质量，从而能够为我们创得更多的经济效益。 关键词：数字测图及其特点 坐标转换 控制测量 ABSTRACT With the scientific and technological progress and rapid development of computer technology and its penetration in the field of surveying and mapping industry, and the wide use of electronic total station, GPS-RTK technology and other advanced measurement instruments and techniques , topographic survey is developing to the automation and digital. They all help Digital mapping technology come into being .Because of its unique high automation, all-digital and high-precision when compared with conventional mapping it is quickly applied in the mapping industry, and has good prospects for development. Currently, digital mapping technology has been increasingly used for mapping production. Digital topographic maps are also used for GIS, urban planning and design, Hydroelectric Project, environmental engineering, earthquake prediction, construction of modern national defense sectors and so on. This article aims at discussing the digital mapping systematically .It introduces the basic principle of digital mapping ,the control surveying ,the data acquisition in topographic mapping ,the drawing of digital map, the application of digital map ,which focuses on the basic principles of digital mapping ,the control surveying , the comparison with traditional topographic mapping ,and the application of digital topographic . Keywords：The character of digital mapping Coordinate transformation