As a new technology in surveying profession, 3d terrain visualization is developing boomingly.
地形三维可视化作为测绘行业的一项新技术正处于蓬勃发展阶段。
Visual 3D terrain simulation technology is an important means of virtual reality, which deals with realistic 3D terrain modeling and 3D terrain visualization real-time drawing mainly.
三维地形可视化仿真技术是虚拟现实的重要手段之一，主要研究真实感三维地形建模和三维地形可视化的实时绘制。
Then, 3D visualization and simple spatial analyses are finished with the application of 3D visualization technology. Thus, the study of 3D terrain visualization system with IDL is finished.
在此基础上运用可视化技术实现三维可视化显示及简单的可视化分析，从而完成了地形三维可视化系统的研制。
However, the 3d visualization of terrain on the Internet is a big challenge for a low bandwidth user, because mass data needs to be translated on the Internet.
然而地形在网络上的三维可视化对于低带宽的用户来说是一项巨大的挑战，因为大量的数据需要在网络上传输。
A method of 3d terrain generation and visualization is discussed.
介绍了一种三维地形生成和可视化的方法。
The 3d visualization of terrain has been widely used in various fields.
地形的三维可视化在多个领域中有着广泛的应用。
The technique of 3d visualization of terrain sight model is an important technique of spatial-temporal GIS and VR.
地形景观模型的三维可视化技术是时空一体化地理信息系统与虚拟现实中的关键技术。
The visualization of 3d terrain is an important function in 3d GIS.
三维地形可视化是三维gis中的一个重要功能。
3d terrain modeling and visualization are hot research topics in GIS, computer graphics, virtual reality, digital photogrammetry and other associated fields.
三维地形建模及可视化是GIS、计算机图形学、虚拟现实、数字摄影测量等领域的研究热点。
This thesis focuses on the establishment of 3d fractal terrain model and the achievement of the visualization system.
本文着重研究三维分形地形模型的构建及其可视化系统的实现。
Integrated with the method of terrain 's 3d visualization, DE - sign and realize the 3d visualization of infrared nephogram of satellite.
结合三维地形可视化方法，设计并实现了红外卫星云图的三维可视化。
Visualization is 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.
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。
TIN composing discrete terrain points almost has the same amount of spatial data as it is and the response time of analysis and 3d visualization becomes too long to wait for.
由离散高程点生成的TIN同样也具有相当大的数据量，这严重制约了TIN的分析、三维可视化等处理速度。
This article put study emphases on picking up technique during the process of 3D-terrain (visualization) and interaction creation.
重点研究三维地形可视化、交互式生成过程中，对地形编辑点的拾取问题。
This article put study emphases on picking up technique during the process of 3D-terrain (visualization) and interaction creation.
重点研究三维地形可视化、交互式生成过程中，对地形编辑点的拾取问题。
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