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intersection checks
相关语句
  相似匹配句对
     Reflection at the Cultural Intersection
     从跨文化的角度审视反思
短句来源
     Planning design of intersection
     城市道路平面交叉口的规划设计
短句来源
     Checks and calculations for location of holes
     位置度的检验计算
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     Supervision on power and checks and balances
     权力监督与权力制约辨析
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  intersection checks
Then, a plane-sweep method is proposed to make fewer intersection checks for eye rays.
      
The intersection checks conclude at the rst valid intersection, further cutting down on the number of intersection checks performed.
      


A group of planes parallel to cutter axis are defined to cut the model surfaces to be machined and a series of intersecting curves are obtained. Then a set of planes perpendicular to cutter axis are built to trace out the plane areas in which the material should be removed, and the tool path is generated accordingly. The whole tool path is made by properly connecting those on different planes together. With this algorithm the complicated calculation procedures, such as offset, self-intersection checking...

A group of planes parallel to cutter axis are defined to cut the model surfaces to be machined and a series of intersecting curves are obtained. Then a set of planes perpendicular to cutter axis are built to trace out the plane areas in which the material should be removed, and the tool path is generated accordingly. The whole tool path is made by properly connecting those on different planes together. With this algorithm the complicated calculation procedures, such as offset, self-intersection checking and Boolean operation of profile loops are avoided. At the same time, the algorithm is also suitable to deal with virtual pocket milling.

提出一种适合实体模型的三轴数控粗加工刀位轨迹生成算法 .首先根据加工行距作一组平行于刀轴的平面 ,与模型的待加工表面求交 ,得到一系列交线 ;再根据精度规划一组垂直于刀轴的分层平面 ,与上述交线求交 ,在每一分层平面上判断加工区域 ,规划出加工刀位轨迹 ,将每一分层平面上的刀位轨迹按适当的方式连接起来 ,就构成零件的整体加工轨迹 .该算法避免了轮廓环等距、自交处理和布尔运算等复杂的计算过程 ;同时 ,对生成开型腔的加工刀位轨迹也是有效的

Virtual Scene Technology is one of the important parts of VR systems. It takes charge of Vision issue in VR systems, and is the most important fact to affect the immersive of the system. It is briefly described the use of VS tech, pointed out it’s characteristics and the difference between VS and common 3D Movies, and based on this, analysed it’s essentiality. The general structure of VS Explore System is analyzed and demonstrated, and connection between different parts of VS Explore System in system construction...

Virtual Scene Technology is one of the important parts of VR systems. It takes charge of Vision issue in VR systems, and is the most important fact to affect the immersive of the system. It is briefly described the use of VS tech, pointed out it’s characteristics and the difference between VS and common 3D Movies, and based on this, analysed it’s essentiality. The general structure of VS Explore System is analyzed and demonstrated, and connection between different parts of VS Explore System in system construction process is explained from system viewpoint. Several key techniques such as Terrain Matching, Intersection Checks, Explore Control and Screen-To-World, etc, are also given in detail.

虚拟场景技术是虚拟现实系统的重要组成部分,它负责解决虚拟现实中“视”的问题,是对系统沉浸感影响最大的一个模块。对虚拟场景技术的应用作了简单的介绍,阐述了其特点及与一般三维动画的区别,分析了其重要性。对虚拟场景漫游系统的一般结构进行了分析和描述,并从系统学的观点出发,解释了虚拟场景漫游系统构建过程中其组成模块之间的关系,同时,介绍了系统中地形匹配、线性交会检测、漫游控制及鼠标拾取等关键技术及其实现方法。

To solve the various problems of traditional sand tables of oil depot, virtual reality technology is proposed to develop the three - dimensional electronic sand table according to the traditional sand tables theories and based on the server database. In the paper, the goal and functions of the system are introduced first. Then, the condition and structure of the system realization are described; the technical way and steps of the system realization are analyzed in detail, including materials' collecting and...

To solve the various problems of traditional sand tables of oil depot, virtual reality technology is proposed to develop the three - dimensional electronic sand table according to the traditional sand tables theories and based on the server database. In the paper, the goal and functions of the system are introduced first. Then, the condition and structure of the system realization are described; the technical way and steps of the system realization are analyzed in detail, including materials' collecting and processing, three - dimensional model's construction and intersection checks, the connection design of server database and so on. Finally, development scheme of the system is discussed.

针对各类油库传统实物沙盘存在的诸多问题,提出以传统沙盘堆制理论为依据,以后台数据库为基础,结合现代先进的虚拟现实技术来研制油库三维电子沙盘。在介绍了系统功能需求的基础上,阐述了系统开发环境和系统结构,详细分析了系统实现的步骤:素材收集和处理、三维建模及优化处理、三维模型集成显示与碰撞检测、后台数据库连接设计,并指出了系统的发展建议。

 
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