三维地形可视化是三维gis中的一个重要功能。
The visualization of 3d terrain is an important function in 3d GIS.
超大场景的三维地形可视化模型是虚拟现实系统平台的重要组成部分。
Three-dimensional visualization models for extra large scale landscape geomorphology are the important parts of VR system platforms.
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。
Integrated with the method of terrain 's 3d visualization, DE - sign and realize the 3d visualization of infrared nephogram of satellite.
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.
由于三维地形可视化及其实时显示有着广阔的应用背景，近来越发受到人们的关注。
Three dimensional terrain visualization and realtime display has become increasingly interesting in recent years because it has wide application backgrounds.
GIS学者在研究三维地形可视化和数字城市可视化时，普遍在地形、城市建筑物的几何模型上叠加了纹理。
The scholars in the GIS domain always add adding texture on geometry model of the 3D things in the study on the 3D terrain and the digital city.
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。
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.
DEM是地形表面的数字表达，易于三维可视化和统计分析。
DEM is a digital expression of landform surface, and is of great advantage to three-dimensional visualization and statistical analysis.
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。
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.
介绍了一种三维地形生成和可视化的方法。
A method of 3d terrain generation and visualization is discussed.
地形的三维可视化在多个领域中有着广泛的应用。
The 3d visualization of terrain has been widely used in various fields.
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 technique of 3d visualization of terrain sight model is an important technique of spatial-temporal GIS and VR.
同时充分利用GPU的渲染功能，提高可视化的真实感和实时漫游的速率，实现了大规模三维地形的实时漫游。
Using the GPU rendering functions, improving the visual realism and real-time roaming rates, a large-scale 3d real-time terrain roaming is performed.
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。
3d terrain modeling and visualization are hot research topics in GIS, computer graphics, virtual reality, digital photogrammetry and other associated fields.
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。
This thesis focuses on the establishment of 3d fractal terrain model and the achievement of the visualization system.
本文以研究三维地震数据体和三维地形网格的可视化算法为主要目的，讨论了三维地震地形数据体的交互可视化系统。
Aiming at studying algorithm of 3-d seismic data and 3-d grid data of topography, a interactive visualization system of 3-d seismic and topography data was discussed.
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。
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.
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。
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.
同时，本文还从地形三维可视化、地形LOD显示技术和地形地物之间融合的方法方面作了初步研究，并结合相关实验进行了分析。
At the same time, this article also studied the terrain visualization, terrain LOD techniques, the feature fusion method, and an example is analyzed.
本文以教育部春晖计划——“基于网格的喀斯特地区数字博物馆的基础研究”为背景，结合遥感数字影像处理，研究三维真实感地形的建模和可视化方法。
As we know the build of third dimension scene needs a lots of real remote sensing images, theirs combination is one efficient way to high third dimension.
本文以教育部春晖计划——“基于网格的喀斯特地区数字博物馆的基础研究”为背景，结合遥感数字影像处理，研究三维真实感地形的建模和可视化方法。
As we know the build of third dimension scene needs a lots of real remote sensing images, theirs combination is one efficient way to high third dimension.
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