geometry modeling 中文意思是什麼
geometry modeling
解釋
幾何建模-
First, this dissertation gives a geometrical projection - based 3d warp algorithm, which has proved the feasibility to bring the studying method of ibr into geometry models - based modeling and rendering. it is an all - purpose algorithm, which can perform coordinate warping under different projection for scene and object models, and, this algorithm can perform color warping according to lighting characteristics
演算法的提出證明了將圖像繪制的研究方法引入幾何繪制領域的可行性，演算法通用性好，對場景模型與對象模型均能夠依據不同的投影關系進行圖像的坐標變換，同時，演算法還能夠依據光照特性對象素點顏色值進行變換。 -
Based on analysis and compare of all kinds of precept - sorting of feature of plastic product for the different structural plastic product, a 3d feature library of plastic product was built on the platform by integrating feature - modeling technique with parametric technique. the feature schleps its information of non - geometry by database - externed technique of the entity. after building the database of plastic material, the module of choice of plastic material is developed by technology of odbc
針對不同結構類型的塑件，在全面分析、比較塑件特徵分類的各種方案的基礎上，採用三維特徵建模技術和參數化技術，建立了注塑產品的三維特徵庫；應用實體擴展數據庫技術，使特徵攜帶非幾何信息；再在建立塑料物性數據庫的基礎上，採用odbc技術，開發了塑料材料選擇模塊；通過塑件特徵的調用和人機交互輸入參數的方法進行塑件三維造型，再把塑件的三維實體和塑件的非幾何信息結合起來，生成塑件全信息模型。 -
According to different research objectives, four kinds of vehicle dynamic models ( named from model a to model d ) and two types of train dynamic models ( model e and model f ) are established in this thesis. during the modeling process of the vehicle and train systems, nonlinearities arising from wheel / rail contact geometry, wheel / rail interactive forces and suspension characteristics are fully considered. the modeling methods about vestibule diaphragm, coupler and draft gear are introduced, too
本文按照研究目的的不同，建立了4種車輛動力學模型（模型a模型d ）和2種列車動力學模型（模型e和模型f ） ，建模過程中盡可能多地考慮了列車（車輛）系統中的各種非線性因素，詳細給出了風擋裝置、車鉤及緩沖器的具體建模方法。 -
? to make the solid have realistic surface, we adopt advanced solid modeling method - constructive solid geometry. ? to free end - user from overwork, we presents and realizes many auto - processing algorithms, such as searching of inner - point, definition of polygon ' s counter - clockwise direction, as well as generation of numeric control codes. ? to checkout the collision and interference between cutter and part, we accomplish numeric control machining simulation, which can help end - user validate the correctness and rationality of numeric control codes, so it is needless that do repetitive test - cut before normal manufacture
正如將在後續章節中所講述的那樣，我們在系統中採用了許多先進的技術，其中主要包括以下幾點：採用分層設計思想，使三維物體的設計得到了簡化；採用先進的實體造型方法，使所建立的實體真實感強；實現了內點自動查找、多邊形方向自動定義等演算法，提高了系統的自動化水平；實現了刀具軌跡的自動生成、優化；實現了數控代碼的自動編寫，克服了手動編寫的缺點；實現了數控加工模擬，能檢驗數控代碼的正確性和合理性，並能自動檢測刀具與工件之間的干涉。 -
We first set up the hiberarchy of the nmm ’ s visualization and focus on the study of pem ’ s visual process. then the coupling equation of pem is deduced and a rapid algorithm for solutions of bordered tridiagonal linear equations is put forward. in the last of the thesis, elementary system of deformation geometry unified for manifold ’ s structure is studied primarily via the idea of unified modeling and some theoretic results for analytical visualization are given out under the system of frenet frame of arbitrary parameters
文章結合nmm的基本原理和特點，研究了nmm可視化的有關理論和方法;文章首先建立了nmm可視化的層次結構，重點對面素單元法（ pem ）的可視化過程進行了細致研究，推導出了pem的耦合方程，然後給出加邊三對角方程組的一種快速求解演算法，最後還從統一建模的思想對統一于流形結構變形幾何的基本體系進行了初步研究，得到了任意參數形式下frenet標架體系的若干適用於解析可視化的理論結果。 -
Thirdly, geometry modeling of the pump was made and meshes were divided with gimbit, then the flow filed was investigated using flunt, a commercial available cfd code. as result, lots of internal flow filed of outlet of the gear pump was obtained, including velocity magnitude and pressure magnitude
應用pro / e和gambit軟體對機油泵進行幾何建模並劃分網格，應用fluent軟體模擬多種工況下機油泵出口部分的三維湍流流動，得到詳盡的三維湍流場的分析結果，包括壓力分布圖、速度矢量分布圖等。 -
The principle of the predigestion in geometry modeling is omitting the function part and the non - load - carrying process structure, and to the big and transition arc, the curve is replaced by straight line using the thought of curve and free - surface segmentation. the physical characteristic of the digital model reflect on remaining the main mechanical characteristic of the objects. the shell element model is used in strength analysis, stiffness analysis and dynamic analysis
文中幾何建模的簡化原則是，略去功能件和非承載的工藝結構，對于大圓弧和過渡圓弧，以曲面分塊和曲線分段的思想進行適當的以直代曲;數模的物理特性反映在最大限度地保留對象的主要力學特性;在強度、剛度和動態分析中採用殼元模型，輕量化設計中採用梁元模型;材料特性根據所用材料定義其主要性能參數。 -
In order to implement the modeling of reconfigurable virtual machining environment, an efficient virtual machining environment hierarchical modeling method supporting reconfiguration is put forward based on analysis of requirements and characteristics of reconfigurable 3d virtual machining environment modeling. four subjects of the modeling of reconfigurable virtual machining environment including geometry modeling of reusable part and component, simulation modeling of reusable part and component, modeling of virtual machining device and design of data management system in reconfigurable virtual machining environment are studied and configured by object - oriented method in detail
為解決可重構虛擬加工環境的建模問題，本文在全面分析可重構虛擬加工環境的建模需求和建模特點基礎上，提出了可重構虛擬加工環境層次建模方法，將可重構虛擬加工環境的建模分解成為四個子專題：可重用的零部件幾何模型的建立、可重用的零部件模擬模型的建立、虛擬加工設備的建模、支持重構的虛擬加工環境模型數據庫的設計，並分別對之進行了詳細的分析設計。 -
At last, the t - b zier curves and t - b - spline curves can be converted to rational curves so easily that they can be merged into current geometry modeling rapidly
最後由於這兩類曲線僅由三角函數構成，所以它們較易轉化為有理多項式曲線。從而融入到現有的幾何造型系統中。 -
Geometry modeling technique ( including wire frame modeling, superficial modeling and solid modeling ) can not be adapted to the contemporary requirement in the development of cad / cam integration, then it comes into being the feature modeling means which can integrate entire product design and manufacture processes
幾何建模技術（包括線框建模、表面建模和實體建模）已經不能夠適應現代cad集成發展的需要，於是產生了面向整個產品設計過程和製造過程的建模方法? ?特徵建模。 -
In this paper, the geometry modeling technology and the theory and methods of the freeform curve and surface, together with the applied, opening and mini - sculpting system software for moulding empoldered for the henan jiuding stock company have been analyzed and researched systematically in the course of mutual curve - surface sculpting
論文在對幾何造型技術及曲線、曲面的理論和方法進行系統分析與研究的基礎上，應河南九鼎股份公司的實際要求，開發了一套實用的、開放性和小型注塑模具造型系統軟體。 -
The contents of vmt are enrichment. the basic parts of vmt are geometry modeling and kinematics simulation, these are the foundation for the full function simulation of vmt
虛擬機床所蘊含的內容十分豐富，幾何建模和運動模擬是其最為基本的部分，是實現虛擬機床全功能模擬的基礎。 -
This thesis presents a method about geometry modeling and kinematics simulation of vmt based on opengl geometry engine. in term of the method modeling and simulation of any kinds of nc machine tool can be constituted
本文論述了基於opengl三維圖形引擎實現機床幾何建模和運動模擬的方法，本文所述方法可以實現任意數控機床的幾何建模和運動模擬。 -
In chapter 4 we constitute the dynamic ir scene by combining scene geometry modeling with ir texture images. in this way the complexity of ir scene is reduced
本文第四章採用了場景幾何造型和紅外紋理圖像混合的簡化方法來進行紅外動態場景的建模。 -
Ibr is based on the theory and method of computer vision and image processing, and it uses photo - realistic renderings and warping. it is appealing since natural scenes, which are very difficult to model using traditional 3d geometry modeling, can be acquired semi - automatically using cameras and other devices
基於圖像的繪制是近來興起的一種新的虛擬現實實現方法，它以計算機視覺和圖像處理等學科的理論和方法為基礎，試圖利用真實的圖像來代替傳統的幾何建模，同時又用圖像空間的變換操作來代替傳統的繪制過程。 -
The geometry modeling and rendering with 3d modeling software 3ds max
研究了三維模型軟體3dsmax進行幾何建模以及渲染的方法； 2 -
The main contents of this research are the following : ( 1 ) the technology of graphic and image - based modeling and rendering is adopted, and 3d model of virtual campus system were accomplished. the geometry modeling of complex object is explored in vr, and commonly means were summed up such as trees, flower and grass etc. this paper also analyzed texture mapping problems of big and small geometry object, which can reduce workload of building scene
（ 1 ）採用圖形與圖像混合建模技術，實現了vcs虛擬校園系統的三維建模，並對虛擬世界中復雜物體建模技術進行了探索，總結出了樹木、花草等復雜對象建模的一般方法，分析並解決了幾何體的紋理映射問題，極大地減少了場景製作的工作量。 -
Based on the geometry modeling the thesis dissertates the movement manner of the 5 - axis machine tool, sets up the kinematics model and realizes kinematics simulation according as the time - divided interpolation arithmetic
在幾何模型的基礎上，本文詳細分析了五坐標加工中心的運動形式，建立了虛擬機床的運動模型，運用基於線性插補的時間分割演算法實現了對虛擬機床的運動模擬。 -
Instead of 640 fibers, it realized the large area multi - object observation by use of 4 000 fibers. according the request of project, mechanical character, controlling and positioning method were firstly analysized. then through studying geometry modeling, convex hull, polygon collision test and other arithmetic, the positioning, controlling and collision test method are proposed which are suitable for radial coordinates unit
本文根據工程的要求，首先對光纖定位裝置的機械特徵、控制方式、定位方法做了分析，然後通過研究現有的幾何造型、凸包構建、多邊形碰撞判斷等演算法理論，研究出適合極坐標運動單元的表示、控制、判斷方法，並最終在虛擬系統中實現了4000個光纖定位單元的存儲表示、定位控制、碰撞判斷（即實時監控） 。 -
Under the virtual environment machine product modeling is proceeded. geometry modeling is a foundation of product modeling and behavior modeling reflects characteristic of machine product modeling under virtual environment
在虛擬環境下進行機械產品建模，幾何建模是機械產品建模的基礎，行為建模則體現了虛擬環境下機械產品建模的特徵。
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