骨架模型

This article proposes an approach to model the virtual crop organ based on growth framework . Through this way we can simulate the appearance of organs with branch construct in three-dimensional space and their dynamic growing process and satisfy the demand of the changefulness of organ branch's attributes .

提出了一种基于生长骨架模型的虚拟作物器官建模方法，通过这种方法可以较好地模拟具有分支结构的作物器官在三维空间中的形态以及动态生长过程，同时较好地解决器官分支属性多变的要求。

Can read BVH motion capture data files, and display its skeleton model of the movement.

可以读取运动捕获数据BVH文件，并显示其骨架模型的运动过程。

Hierarchical skeleton models are widely used which represent bodies as chains of bones with interconnecting joints.

阶层式的骨架模型更是被广泛的应用，以连接在一起的线段表现人体的骨架和关节。

First the method employs a background subtraction to separate human object,and builds skeleton model of human lower limbers.

该方法首先采用背景剪除技术从图像序列中分割人体目标对象，并建立人体下肢骨架模型。

Combining petrology and the reservoir sensitive analysis, the author builds the rock matrix models.

以储层岩石学分析为基础，结合储层敏感性分析，建立了三角洲储层中影响孔隙结构的微观骨架模型。

The main jobs of this paper are as followed: 1 The reuse of the frame design technology for aircraft assembly fixtures is researched. a frame line part library is built with the templet driven technology, the reuse of the frame line part come true by the tools for instantiation and instance modification. The design resources are effectively used, some repeating work is cut. 2 Two methods to obtain the assembly feature are proposed: the straight way by the Enumeration method and the indirect way by project features to the assembly plane. All of the assembly features of the frame and the adjustable bearings are obtained by these two methods which makes the frame automatic assembly technology for aircraft assembly fixtures come true. 3 The frame automatic assembly technology aircraft assembly fixtures based on assembly features is researched. A binary tree assembly model is used to express the assembly information of the frame for aircraft assembly fixtures, the automatic assembly between the frame, the aircraft and the adjustable bearing is completed within the three steps: distribute, obtain and evaluate assembly feature. Finally, the efficiency of the frame assembly design is proved. 4The frame interpart modeling technology for aircraft assembly fixtures is researched, the intersection methods are concluded and the arithmetic of the single-cut, double-cut and inter-cut intersection is proposed, the interpart fast modeling of the frame design for aircraft assembly fixture come true. 5Based on the researches mentioned before, a sub-system of frame fast design for aircraft assembly fixture is developed on CATIA. The sub-system is used to design the aircraft assembly fixtures in a large aeronautics corporation and make a good- effect.

论文的主要工作如下： 1研究了飞机装配型架骨架设计重用技术，在总结归纳骨架线框结构类型的基础上，应用模板驱动的方法建立了骨架线框库，通过骨架线框零件的实例化和离线编辑实现骨架线框的重用，有效利用设计资源，减少重复劳动； 2提出穷举几何对象的装配特征直接获取方法，遍历零件模型的几何对象，从中捕捉所需装配特征，该方法简捷、高效；提出向装配面投影的装配特征间接获取方法，该方法在现有特征基础上生成装配特征，解决了部分装配特征难以直接获取的问题； 3研究了基于装配特征的飞机装配型架骨架自动装配技术，采用一种二叉树装配模型表达骨架的装配关系，并通过装配特征的分配、获取和赋值三个步骤，实现了骨架分别与飞机产品和可调支承的自动装配，避免了繁琐的人工交互操作，提高了骨架设计的效率和规范化程度； 4研究了飞机装配型架骨架零件间建模技术，在总结归纳骨架元件相贯处理方式的基础上，提出了骨架元件单剪切相贯、双剪切相贯和互剪切相贯的实现算法，简化了骨架相贯处理的过程； 5基于以上研究，在CATIA平台上开发了飞机装配型架骨架快速设计子系统，并应用于某大型航空企业的装配型架设计，提高了设计效率和设计质量。

Firstly, by using stick model combined with inverse kinematics and dynamics constraints the.

首先，采用骨架模型结合逆运动学和动力学约束仿真了人体行走，取得了很好的逼真性；同时运用逆运动学和关键帧方法仿真了人体跑动，取得了较好的实时性。

In the first section of the tutorial, you use a predefined skeletal model, consisting of unconsumed sketches, to determine the placement and extent of frame components, such as square tubing and c-channel, and then fit those components together with miters and cuts.

在自学课程的第一节，您将使用由未消耗的草图构成的预先定义的骨架模型，来确定框架元件(如方形细配管和 C 形凹槽)的置放和实际范围，然后使这些元件与斜接和切割配合在一起。

On the basis of parameterization technology based on feature and assembly modeling technology based on Top Basic Skelton, a Top-down modeling method which combines skeleton model with dominant parts is put forward, and accomplished a product design with it.

本文研究了支持自顶向下设计的产品功能建模与装配模型，在基于特征的参数化技术以及基于顶层基本骨架的建模技术基础上，提出了骨架模型与主导零件相结合的自顶向下建模方法，完成了具体的产品设计。

The methods are based on biomechanics. The joints of human body were categorized according to the motion characteristics. Motion parameters estimated from sensor data were used to control the movement of human skeleton model and the deformation of skin model, and consequently reconstruct the human body motion in real-time animation.

该方法以生物动力学为基础，根据人体关节的运动特征进行分层表示，采用传感器数据驱动并控制人体骨架模型的运动以及皮肤模型的变形，实时再现真实人体运动。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷