三维地形表面点状数据交互采集方法设计

Design of Interactive Point Data Collection Method Based on DEM 3D Surface

在总结三维可视化技术和三维交互环境特点的基础上,参考鼠标三维取值的相关算法,设计了一种多维窗口光标定位的人机交互方法,能够精确地在虚拟三维地形表面进行点状目标的采集;基于IDL开发语言实现了三维点状数据采集方法,并通过实验验证了该方法的精确性和可操作性。

On the basis of summing up the characteristic of 3D visualization technique and its interaction environment, consulting the algorithm about 3D mouse selection, we designed a muti-dimensional virtual cursor mouse selection method, which could make the data point collection become more accuracy. At last, we implemented this method by IDL, and proved that the method was precise and operable.