中文说明：
曲线数据压缩是计算机图形学、计算机自动制图和地理信息系统( GIS) 等学科理论与方法研究的一个重要问题,其实质是一个信息压缩问题.RDP 算法是应用最为广泛的一种,由于容易编程实现且压缩结果较好, GIS 界许多著名商业软件公司(如Intergrap h ,ESRI ,LaserScan) 都把此算法作为其制图系统中一种曲线数据压缩的标准算法.
English Description：
Curve data compression is an important problem in the research of computer graphics, automatic cartography and geographic information system (GIS). Its essence is an information compression problem. RDP algorithm is the most widely used one. Due to its easy programming and good compression results, many famous commercial software companies (such as intergrap h, ESRI, Laserscan takes this algorithm as a standard curve data compression algorithm in its mapping system