基于ArcGIS三维地形可视化及其应用研究——以阳江农场为例

Visualization of 3D terrain basing on ArcGIS and its application——Take Yangjiang Farm as an example

以阳江农场地形图为例,运用ArcGIS Desktop 9.2软件,采用TIN不规则三角网生成算法进行地形建模。将带有经纬地理坐标的地形图数据进行扫描,加载到ArcGIS软件中去,并对其进行坐标、投影转换,使阳江农场地形图变成一份具有地理坐标系统的数字化地图,从而为当前阳江农场精准农业研究提供了数字化的农场布局资料,推动了阳江农场地域范围内三维地形可视化应用研究的发展。

Taking the topographic map of Yangjiang Farm as an example, irregular triangulation network of 3D terrain was used for terrain modeling by ArcGIS Desktop 9.2 software, and then the data of relief map with geographic coordinate of longitude and latitude were scanned and loaded to the ArcGIS software and the coordinate and the projection were transformed to turn topographic map of Yangjiang Farm into a digitized map with right geographic reference system, So, it would provide digitized farm distribution materials for the current precision agricultural research on Yangjiang Farm, and promote the development of visualization of three dimensional terrain in the farm.