面向土地利用规划的电子沙盘技术

Technology of Electronic Sand Table for Land Use Planning

首先分析沙盘制作技术的变化与发展,即从传统的实物沙盘向现代的电子沙盘转变。然后提出并实现面向土地利用规划的电子沙盘制作的技术方案,详细介绍了数据处理、地形模拟与要素匹配等关键技术。最后以浙江省桐庐县富春江流域为例,以数字高程模型(DEM)和美国Landsat-7卫星的ETM遥感影像为数据源,用VisualC++6.0与OpenGL开发环境实现了该地区面向土地利用规划的电子沙盘的制作。

Sand table is very important to the planning and design. With the development of computer technology, real sand table is now transmitting into electronic sand table. The key technique of the technical scheme for electronic sand table, such as data processing, terrain modeling, feature matching, is introduced in details in this paper. Facing land use planning, an electronic sand table based on digital elevation model (DEM) and Landsat-7 ETM image is adopted and developed by Visual C++ 6. 0 and OpenGL, the data as a example is from Tonglu County, Zhejiang Province.