| 1. | Study on 3d terrain and visualization
三维地形建模与可视化研究 |
| 2. | 3 . the technique of terrain - modeling and dynamic terrain - planning
3 .地形建模与地形动态规划技术。 |
| 3. | The terrain modeling and rendering with 3d terrain software bryce
研究了三维地形软件bryce进行地形建模以及渲染的方法； 3 |
| 4. | Most technologies of the vesb , which had been discussed before , were applied in this system
本文所提出的地形建模方法、云层模拟方法和碰撞检测简化方法均在该系统中得到运用。 |
| 5. | The three aspect of vesb was discussed : 3d modeling , 3d terrain building and integration of virtual environment
本文从虚拟环境中的实体建模、三维地形建模和虚拟环境构造三个方面展开了深入讨论。 |
| 6. | All algorithms are realized in terrain modeling and synthetically analysis software developed by vc , opengl and oracle
所有算法均在使用vc 、 opengl和oracle开发的地形建模与综合分析软件中得到了实现。 |
| 7. | 2 . a 257x257 3d terrain data is created by the diamond - square method , with the purpose of rendering primal data for terrain construction
2 .采用diamond - square法构建一个257 257阶大小的三维地形数组作为三维地形建模的原始数据。 |
| 8. | They can be concluded within four parts : spacecraft substantial modeling , 3d terrain modeling , safe landing area choice and visual demonstration of the whole landing process
主要内容包括四部分:探测器实体化建模、三维地形建模、软着陆安全区域选取以及可视化演示。 |
| 9. | 3d terrain surface modeling is to build the irregular 3d model from a large number of scattered points and lines . the object and procedure of it confine that it must use geometric and irregular triangle technique
三维地形建模要从大量离散的点、线重构由不规则三维体集合而成的地表模型，这一过程和目标决定了它必须采用基于曲面和不规则三角形的造型和可视化技术。 |
| 10. | In the part of 3d modeling , some theories and technologies was discussed . then , how to build 3d terrain was analysis . this dissertation presented two new methods of terrain building : lofting based on contour and random terrain building based on fractional brown motion
三维地形是虚拟环境的基本要素，本文总结了各种地形建模方法，提出了两种地形建模方法：根据等高线地图生成地形的“沿截面法线放样法”和生成随机地形的分形曲面法。 |
