【摘要】 三维空间建模和可视化技术成为GIS研究的热点之一。可视化技术是当今表达和分析复杂数据的有力工具,将可视化技术引入到DEM和三维地质模型,可以实现三维地形和地质体的生成与仿真。简要介绍了OpenGL三维图形工具软件包,以一门高级编程语言VC++6.0为开发平台,探讨了三维空间建模的方法,并在OpenGL图形应用程序的接口下,实现了算法的计算机演示。更多还原

【Abstract】 3D spatial model and the Visualization technology is one of the hot discussions in GIS field。 Visualization technologyis a powerful tool of expressing and analyzing complicate data. Its being used in DEM and 3D geo-model, 3D terrain and geologic model will be implemented. This paper introduces simply the knowledge of OpenGL, which is a kind of 3D graphic software, and discusses algorithms of establishing 3D spatial model. And the model is displayed on the screen on the basis of VC++6.0.更多还原