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几何数据     
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  geometric data
     Before the exchanging of product model data, if approximate merging algorithms are used, then geometric data can be reduced.
     当前 ,产品模型数据的交换比以前更加频繁 ,但由于数据量特别巨大 ,因此如果在数据交换之前采用近似合并算法 ,则可减少几何数据
短句来源
     WT5,5”BZ]It is an important issue for design and manufacture to transfer geometric data models among various CAD/CAM systems, and from CAD/CAM systems to NC systems.
     对于设计和制造来说 ,能够在各种 CAD/CAM系统之间以及从 CAD/CAM系统到 NC系统 ,顺利进行不同的几何数据模型转换是很重要的问题 .
短句来源
     using the concept of geometric data type unify the process method of attribute and spatial data, and simplify entity query and analyses.
     采用几何数据类型的概念,可以使对非空间数据和空间数据的处理方法相统一,而且会使对实体的各种属性数据(包括空间属性)的查询和分析模型更加简单;
短句来源
     1. The analysis of graphics data of AutoCAD and SVG, including geometric data and property data.
     1.AutoCAD与SVG图形数据的结构分析,其中包括图形的几何数据,属性数据等;
短句来源
     Design of description for geometric data determinated process chains
     几何数据决定的过程链的模型设计
短句来源
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  geometry data
     Geometry Data Management for Distributed Virtual Environment
     分布式虚拟环境的几何数据管理
短句来源
     The basic geometry data of CAD was integrated with the characteristic information of machining to make CAPP obtain information from CAD directly.
     集成CAD基本几何数据和加工特征信息,使CAPP直接从CAD获取信息。
短句来源
     Research on CAD-to-CAE Communication for Geometry Data Based on Simulation
     基于仿真的CAD/CAE几何数据传递研究
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     By the data exchange interface of Pro/E and ANSYS, geometry data of the model is transferred into ANSYS, and finite element modeling is obtained by the definition of nodes and elements.
     通过 Pro/ E与 ANSYS的数据交换接口 ,把啮合模型的几何数据导入 ANSYS中 ,并转化成由节点及元素组成的有限元模型 ,运用完全牛顿 -拉普森方法进行接触应力的静力学求解 ,并介绍了算法原理。
短句来源
     With the development of engineering database incorporated into CAD, the use ofengineering database to manage CAD geometry data is put in a more important place.
     随着工程数据库的发展及其在 CAD 技术中的应用,用工程数据库来管理CAD 几何数据的方法越来越受到重视。
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  geomorphic data
     Third, the article described the expression method of the geomorphic data and the attribute data of map. With the modeling technology of Object-Oriented, the author realized the edit function of the electronic map, and he also realized the function of the map symbol's production.
     文章介绍了几何数据与属性数据的表达方式,并采用面向对象的建模技术,实现了电子地图数据的编辑修改功能和点、线、面符号的制作功能。
短句来源
  “几何数据”译为未确定词的双语例句
     (2) With analyzing structure features of sheet metal parts, the geometrical information model is built on the basis of the hierarchy of structure feature, structure element and geometrical element.
     (2)分析了钣金零件的结构特征构成,建立了“结构特征—结构要素—几何要素”的三层几何信息模型,并采用树结构组织模型几何数据,分别给出了框肋零件、整体壁板零件和蒙皮零件的几何信息模型;
短句来源
     The Geometrie Data Model DB-GEOMOD in Engineering Data Base Environment
     数据库环境下的几何数据模型DB-GEOMOD
短句来源
     Together with the process-planning data of machining feature, the master NC programming template corresponding to master part model can be constructed. During variant design, a new variant part is derived from master part model.
     主模型零件通过变型,生成变型零件后,用变型零件的几何数据更新NC编程主模板中相应的几何数据,然后基于NC编程主模板自动生成该变型零件的NC程序,实现变型零件NC程序的数据驱动式生成。
短句来源
     The serialization of the graphics data to the databases is the key technology of OOP(Object Oriented Programming) to develop distributed GIS(Geographical Information System).
     在用面向对象技术开发分布式GIS系统时 ,要实现图形对象空间几何数据序列化和图形对象属性数据存储。 如何实现图形对象空间数据的分布式存储是实现分布式GIS系统的关键所在。
短句来源
     studied the structure of the model' s elementaryunit--geographic entity; brought forward the concept of geometric datatype which characterize entity's spatial feature in the structure;
     研究了地理空间模型中的基本单位——地理实体的结构,针对实体结构中用来表征实体空间特性的组成部分——几何对象,提出了其取值范围,即几何数据类型的概念;
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  geometric data
Building information modeling is a new technology in the field of computer aided architectural design, which contains not only geometric data, but also the great amount of engineering data throughout the lifecycle of a building.
      
Polygonal object is a fundamental type of geometric data in vector GIS.
      
Geometric data indicate that the eye orbits of the males are more extended than those of the females; this is probably related to territorial defense and/or polygynic mating system.
      
The scientific programme also widened remarkably from more local studies based on geometric data to regional and global investigations, with gravity measurements as an important source of information.
      
We also prove a theorem on when global analytic intersection classes can be computed from first order geometric data.
      
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  geometry data
The joint geometry data, such as the bevel angle, the gap, the area, and the mismatch, etc., aided in assembling large-scale aerospace components before welding.
      
Starting from the close-geometry data, the contribution of sequentially emittedα-particles was calculated by Monte Carlo simulations for the entire angular range.
      
First, we propose using real-time scene management to manage the computing resources on the client side by reducing the amount of transmitted geometry data.
      
It is not the intent of this paper to provide detailed algorithms related to accessing or repairing geometry data.
      
Based on these concepts, the following procedure for establishing case depth is suggested: 1) From design load and gear geometry data, compute the applied shear stress gradient at the most severe location along the path of contact.
      
更多          
  geomorphic data
Peak flows for the 1.01-2-yr recurrence intervals increased by 20-to-206% over the past 25 years.Geomorphic data suggest that small channels (ditches) were entrenched by design, whereas, natural channels incised.
      
The evidence of east-west compression in northeast Japan has been reported by many investigators on the basis of geodetic, geologic and geomorphic data, but its origin still remains far from understood.
      
No formal geomorphic variable was used in the construction of the 2-D model, but digital geomorphic data were created for use in the 3-D model.
      
Physical characteristic and geomorphic data for Little River Watersheds, Georgia.
      
Well-dated geomorphic data suggests that the vegetation cover over most of the country thinned out during this period.
      
  geodetic data
Intracontinental mountain building in Central Asia as inferred from satellite geodetic data
      
A joint analysis of the seismological and geodetic data provided reliable interpretation of the source mechanisms of the earthquakes.
      
Geological and geodetic data are used to infer the geometry of these faults and long term slip rates on them, as well as for the fault segments that slipped.
      
The presentation contains information on existing geodetic data for King George Island obtained from the questionnaires distributed among the members of the WGGGI.
      
Then, the parameters of the globe dynamic model can be obtained by inverting the geodetic data.
      
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Based on discussing the geometric data conditions needed in the dynamic drawing of a body and on designing the "active" geometric data structure, this paper brings forth a new algorithm—the method of the projection line segment—for solving the problem of hidden line suppression. It is shown that the principle of this algorithm is simple and clear, and the method can be commonly used.

本文在讨论物体动态绘图所必须几何数据条件和设计“活化”的数据结构(几何)基础上,提出了解决隐藏线问题的一种新的算法——投影线段法。分析表明此算法原理简单明确,具有较广的通用性。

This paper presents a new data model ( DB-GEOMOD ) to manage the geometrical data and the non-geometrical data in engineering data base environment.Representing the geometrical data in NET/RELATION hybrid model, we can manage the geometrical and non-geometrical data in the same way. In this case, the paper presents an idea to integrate the geometrical and nongeometrical data in data base enviroument.

本文在分析使用商业数据库技术处理工程信息的难点的基础上,针对几何信息的特点,结合采用边界表示法的几何造型系统的数据结构,在网状/关系混合数据模型上建立了一个几何数据模型DB-GEOMOD。通过该数据模型,我们在数据库环境下统一地将几何与非几何数据表示出来,并采用相同的数据管理机制处理它们,为集成管理几何与非几何信息奠定了基础。

Two methods are proposed:the sensor method and the method of regenerated shape.They are based on the common geometric data file library created by the geometrical mod-eling system of the CTIPS system,and are used to determine the tool path of NC machiningautomatically by means of boundary discrimination.The sensor method is first to discretize the surface of the cutter and then builds up a sys-tem of sensory points.According to the relationship of the sensory point location with re-spect to the surface contour...

Two methods are proposed:the sensor method and the method of regenerated shape.They are based on the common geometric data file library created by the geometrical mod-eling system of the CTIPS system,and are used to determine the tool path of NC machiningautomatically by means of boundary discrimination.The sensor method is first to discretize the surface of the cutter and then builds up a sys-tem of sensory points.According to the relationship of the sensory point location with re-spect to the surface contour of the workpiece,the moving direction along which the cuttermust follow is obtained.According to the idea of radius offset of the cutter for the second method,a new pattern,named regenerated shape and equidistant from the original part profile is developed.The partial contour of the regenerated shape is just the path of the cutter center.

本文提出两种方法:传感嚣法和再生形体法。它们是在 CTIPS 系统的几何造型系统产生的公用几何数据文件库基础上,应用边界判别方法自动求取数控加工的刀具轨迹。传感器法是把整个刀具表面离散化,建立起一个传感点系统;根据各传感点与零件表面间的位置关系,得出刀具应沿哪个方向移动。再生形体法是根据刀具半径偏置思想,产生一个与原零件形状等距的再生形体。刀具中心点的轨迹就是等距形体的部分轮廓线。

 
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