Tilt and rotate the view to see 3d terrain and buildings.
倾斜和旋转的观点看三维地形和建筑物。
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 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。
A novel contour-based 3d terrain matching method is presented in this paper.
提出一种新的基于边缘的3d地形匹配算法。
When 3d terrain and buildings arent enough, check out the new high-resolution photos.
当三维地形和建筑物是不够的，遏制了新的高分辨率照片。
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。
Then this paper implements an application soft based on this building technology of 3D terrain.
最后对这种三维地形生成技术以软件的形式加以实现。
The 3d terrain simulation technique is one of important research issues in the computer graphics.
三维地形模拟技术是当前计算机绘图领域中研究的重点之一。
The overlaying of the vector data above 3D terrain offers the data basis for the spatial data analysis.
矢量数据的加入为在三维地形上进行空间分析提供了可能性。
This paper introduces a series of theories and algorithms for 3d terrain display based on the embedded GIS.
本文论述了基于嵌入式g IS的三维地形显示的一系列理论和算法。
The result of the test proves that the 3D terrain by this algorithm is more reality, simple and easy operation.
实验结果表明应用这种方法生成的三维地形具有较好的真实感，算法简单、易于实现。
Absrtact: 3D terrain simulation is always a hot topic in geographic information system(GIS), virtual reality and so on.
摘 要：三维地形模拟一直是虚拟现实、地理信息系统（GIS）等领域的研究热点。
Freeworld3D is a fully interactive real-time 3D terrain editor and world editor specifically designed for game development.
交互性的实时3D地形编辑和生成工具。从简单的游戏阶段到大规模的户外环境，你都可以任意创作。
Secondly, put more emphasis on the reconstruction of 3D city model, which involves the 3D terrain and the fuse of Ikonos and terrain.
其次，重点研究了三维城市模型的构建，包括三维地形模型的建立，卫星影像与三维地形模型的融合。
Guadaloupe - Not sure if this is new this month, but Isle des Saintes in Guadaloupe now has 3d terrain (previously the islands were flat).
哥德普洛-不知道这是否是新的这个月，但岛之散特市在哥德普洛现在三维地形(原群岛持平)。
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.
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。
Enlightened by stream medium technology, this paper proposes a method handling 3d terrain data in streaming way for real-time interaction based on network.
该文提出基于网络实时交互的海量三维地形数据的流式处理方案。
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。
Also new is a 3d map of Mars, which includes high-resolution images from NASA, 3d terrain data, and annotations for landing sites and other interesting features.
此外Google Earth还提供了火星的3d地图，并附有来自美国航空航天局的高分辨率照片。
The method of constructing and progressively transmitting 3D terrain texture data based on multi-resolution progressive layers is put forward for the first time.
首次提出了基于多分辨率渐进层提取的三维地形模型纹理数据建立和渐进传输的方法。
The rendering of 3D terrain scene is playing a key role in many research fields such as virtual reality, geographic information system and simulation system, etc.
三维地形场景实时绘制在虚拟现实、地理信息系统、仿真系统等领域中占有十分重要的地位。
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。
Analyzing the performance method of 3d terrain dynamic modeling and it's characters, and set the point to the terrain dynamic modeling based on the change of space data.
分析了三维地形动态建模的表现方法及特点，并将地形动态建模研究的重点放在基于空间数据改变的动态地形建模上。
The key techniques of the rendering of vector data over 3d terrain based on stencil shadow volume algorithm are detailed and the effectiveness of this method is test-proven.
详细论述了基于模板阴影体算法矢量数据绘制的关键技术，并通过试验验证了该方法的有效性。
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。
Nowadays, 3d simulation technology of the Science of Computer Graphics has been promoted quite much, and large area 3d terrain simulation for real-time rendering has been coming true.
目前，计算机图形学领域的三维图形仿真技术有了长足的进步，大地域范围内的三维场景实时仿真已经成为可能。
Geomorphologic information database, which is mainly used to memorize and manage the map and geomorphic objects, is an important section of X-2000 high-speed 3d terrain display system.
地理信息库是X- 2000高速三维地形显示系统的重要组成部分，主要对地图和地理实体进行存储和管理。
For the requirements of creating 3d terrain based on the elevation data which is in the form of regular grid, a kind of modeling method based on weighted average algorithm is proposed.
针对由数字地图等以均匀网格形式给出的高程数据生成真实三维地形的仿真需求，提出了一种基于加权外推算法的地形几何模型。
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。
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。
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