传统的GIS建模方法，在虚拟环境建模中遇到了困难，需要在模型的精度和计算机的绘制速度之间采取一定的折衷。
With traditional modeling method of GIS we encounter some difficulties, we must keep a balance between the precision of model and rendering speed of computer.
对虚拟环境中微加速度传感器建模及拟实运行进行了研究。
Modeling and virtual working of micro accelerometer in virtual environment is discussed in this paper.
另外，为了构建网上商店的虚拟环境，3d建模也将是一个重要问题需要解决。
Moreover, in order to build the virtual environment of an on-line shop, 3d modeling will be a big problem need to be solved.
在虚拟实验系统中，对虚拟实验室的体系结构和关键技术进行了研究，包括虚拟环境、三维建模、动画等方面内容。
In the virtual experiment system, we focused on the system structure and key technologies of virtual experiment, including three-dimensional modeling, virtual environment and animation etc.
虚拟环境的建模是基于虚拟现实的遥操作机器人系统的关键技术。
Modeling technology of virtual environment is the key of VR-based telerobotic system.
本论文从分形布朗运动，三维地形建模和虚拟环境三个方面逐步进行了深入讨论。
The three aspect of the dissertation was discussed: fractal Brownian motion, 3D modeling and visual environment.
虚拟环境漫游系统，传统上是采用计算机图形学原理建模来绘制虚拟场景。
Virtual environment walkthrough systems traditionally use computer graphics to model and render virtual environments.
本文以基于图像建模技术为基础，采用多分辨率建模技术和多重纹理映射技术，提出了一种高效的对月面虚拟环境进行建模的方法。
In this paper, an effective image-based modeling method on the lunar surface ve is proposed, which utilizes the multi-resolution geometric modeling and the multi-texture mapping technique.
对虚拟环境的几何建模、形象建模、行为建模三个环节的建模原理和方法做了深入的研究与分析。
It analyzes the modeling theory and ways of the three links of geometric modeling, physical modeling and behavior modeling.
该虚拟环境主要包括仿真环境的建立和加工过程的建立两部分，其中仿真环境的建立包括加工中心的建模和零件的建模。
The simulation and machining process were built up in the virtual manufacturing environment. Models of machining center and part were produced in the simulation environment.
提出了动态八叉树结构和相应的自相似裂变递归算法，实现了虚拟环境下的可加工工件动态建模。
A dynamic 8-tree structure and a relative self-similar recursion algorithm are presented to model a dynamic workpiece object, which is machinable.
着重研究解决了全数字摄影测量系统、GIS与虚拟现实系统之间的数据接口问题，三维建模，纹理制作及虚拟环境生成等问题。
The study is mainly focused on the system interface among digital photogrammetry, GIS and Virtual reality, 3D modeling, ; texture making and virtual environment design.
着重研究解决了全数字摄影测量系统、GIS与虚拟现实系统之间的数据接口问题，三维建模，纹理制作及虚拟环境生成等问题。
The study is mainly focused on the system interface among digital photogrammetry, GIS and Virtual reality, 3D modeling, ; texture making and virtual environment design.
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