查询词典 subdivision

Many subdivision schemes have been proposed in the recent three decades, however, most of them are not capable of both reproducing families of curves widely used in Computer Graphics such as conics, and controlling the shape of the limit curve by a tension parameter.

近三十年来已有多种细分方法被相继提出，然而大多数细分方法不能既生成在计算机图形学中广泛应用的特殊曲线，例如圆弧曲线，又存在一个松弛参数能够调整极限曲线的形状。

Al. can not be directly used in our case, we employ the sympatric property of subdivision matrix to process analyzing, and finally find out the convergence condition and sufficient tangent continuity condition.

这里的创新点在于把静态细分扩展到动态以及旋转面的局部生成。

The convex hull of SBGB and subdivision algorithms are also discussed.

此外，还讨论了SBGB曲线的包络及细分算法。

"Curia:One of the ten primitive subdivision s of a tribe in early Rome, consisting of ten gentes."

库里亚：一个古罗马部族的十个分区之一，由十个氏族组成。

This thesis contributes to geometry compression in the following aspects: Proposes a method of progressive spherical mesh parameterization based on local parameterization by directly projecting the deleted vertices to its neighborhood. Based on spherical mesh paramterization, an adaptive subdivision remeshing method by progressivly redistributing of sampling points is proposed, by this means, the main geometry information of the original mesh can be captured with only a small amount of samples, it can also be used in mesh simplification. By regarding attributes binded on mesh vertices as geometry signals and transferring them onto a uint sphere by means of spherical mesh parameterization, meshes with different attributes are compressed with spherical wavelet successfully with high compression rate. As a kind of lossy geometry compression technique, two mesh simplification algorthimes are also presented in this thesis.

归纳起来，本文的主要贡献有：提出了以直接投影局部参数化方法为基础的网格累进球面参数化方法；在网格球面参数化方法的基础之上，提出了一种基于累进优化布点方案的网格细分采样方法，该方法可以用很少的采样点就可以捕获到网格的主要特征，因此我们也将其用于后面的网格简化工作当中；通过将网格顶点上定义的各种属性看成几何信号，并以网格球面参数化为手段将几何信号迁移到单位球面上，从而成功地实现了用球面小波对各种几何信号的压缩；作为一种有损压缩方法，本文还提出了基于统一距离的网格简化算法和基于重采样的网格简化算法。

And then, we review the history, development and actuality of the discrete differential geometry and subdivision method.

第一章介绍了古典微分几何的思想、历史与发展等情况；回顾了离散微分几何的思想起源与发展情况；介绍了细分的思想、历史与发展情况。

Subdivision is one of the discrete modeling methods that can achieve data from the devices such as digitizer.

网格细分是一种离散造型方法，可以从数字化仪等设备直接获得数据。

Through task disassociation and role subdivision, this model can be used to divide role based user actions collection. By calculating the difference of roles, the authors can get the awareness strength between user and action.

该模型通过分解群组任务，把群组成员扮演的角色细化，对成员的具体活动进行基于角色的集合划分，并根据角色之间的差别程度来确定成员对不同活动的感知强度。

A small drupe,such as one of the many subdivision s of a raspberry or blackberry.

小核果一种小的核果，如树莓或黑刺莓诸多亚门中的任一种

Since these merits, Dyn's four-point scheme is one of the classical subdivision schemes in CAGD.

本文讨论的是前者。1987年，Dyn提出了四点细分算法，它形式简单，最高具有四次收敛阶，并可以生成一阶连续的极限曲线，由于这些明显的优点，四点法成为CAGD中经典的细分算法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。