包围盒

Most of the collision detection methods now are based on the bounding box and simple searching algorithm,which have low accuracy and efficiency.

目前的碰撞检测方法大部分是基于简单的包围盒方法和简单的搜索算法的，这种算法精确度低且效率不高。

The resulting tree can be rendered in a top-down order, starting with the scene bounding box.

最终的树结构可以以一个由上到下的顺序从整个场景的包围盒开始渲染。

According to documents X 3D model data storage mode and AABB bounding box with the detection algorithm for reference!

根据X文件对三维模型数据的存储方式并结合AABB包围盒的检测算法，只供参考！

Using the characteristic of surface rendering in VTK, a collision detection algorithm based on oriented bounding box is presented.

利用VTK的面绘制特性，在方向包围盒层次树的基础上，提出了一种新的快速碰撞检测算法。

The main jobs of this dissertation are as following: Chapter one firstly describes the essential of collision detection problem, according which most the collision detection algorithms were classified into seven categories. Then a survey on hierarchy bounding volume, surface simplification and the particle swarm optimization is presented, which is the basis of the new frameworks.

本文的主要工作为：第一章概述了碰撞检测问题，把目前的碰撞检测算法分为八大类，主要介绍了与本文算法相关的层次包围盒技术和基于随机方法的碰撞检测技术，并详述了作为BASIC-PSO碰撞检测算法基础的粒子群优化搜索技术。

Then the particle swarm optimization is introduced to collision detection area. In this dissertation, it also proposes two novel framework which combines the exist techniques of hierarchy bounding volume and surface simplification with the PSO. We have tested the frameworks in our "Haptic Interactive System ". The new frameworks performance well for most models in virtual scene.

本文探索和研究了虚拟环境中广泛使用的碰撞检测算法，尝试把几何模型的碰撞检测问题转化为优化搜索问题，把粒子群优化搜索技术引入碰撞检测领域，并结合碰撞检测领域现有的层次包围盒技术和网格简化技术，组成新颖的限时干涉检测算法框架，即用户可以方便地控制分配给碰撞检测算法的时间，尝试去克服这一技术瓶颈。

It is necessary to calculate the min-area encasing box of a circumscription.

许多工程应用中需要计算区域最小面积的包围盒。

The authors analyzed the advantages and disadvantages of the existing space division technology and bounding boxes method, and then proposed an improved space division algorithm.

分析了已有空间分解技术和包围盒方法等的优缺点，并在此基础上提出了改进的空间分解求交方法。

Frustum of cone and its parameter recognition algorithm based on shape distributions and minimum oriented bounding box was given.

给出了一种结合最小有向包围盒(minimum oriented bounding box， MOBB)以及形状分布的识别圆台体及其参数的算法。

To do this we clip the patches' bounding boxes against all six sides of the viewing frustum.

我们用视见体的六个面去剪裁缀片的包围盒。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。