基于VTK的地形三维可视化程序设计与实现

摘要

This paper studied the 3D terrain visualization which based on the open visual graphics library VTK, and a 3D terrain visualization program has been designed and developed with MFC in the VC development environment. The VTK visualization library pipeline flow method was used based on the analysis of the key technologies in the 3D terrain visualization by VTK including 3D terrain modeling, color mapping and texture mapping etc. Some functions such as reading discrete point coordinate data,building the digital elevation model and the visualization display and interactive function of 3D terrain were realized efficiently.%对基于开放的可视化工具包(visualization tool kit,VTK)可视化图形库的地形三维可视化进行了研究,并在VC开发环境下利用MFC设计开发了地形三维可视化程序.通过对VTK地形可视化中三维建模、颜色映射和纹理贴图等关键技术的分析,利用VTK可视化类库管线流的方法,高效地实现了离散点坐标数据的读取、数字高程模型的建立以及地形三维可视化显示与交互功能.