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布尔运算的
相关语句
  boolean operations
    Application of boolean operations in industry product molding
    工业产品造型中布尔运算的运用
短句来源
    Implementation of boolean operations on STL models
    STL模型布尔运算的实现
短句来源
  boolean operation
    With the Boolean operation, the STL format of new product model is formed by arbitrarily the entity's integration and arbitrarily truncating of entity.
    在布尔运算的基础上,通过对反求模型的三角网格进行任意叠加和任意截取,产生新产品的STL文件格式;
短句来源
  “布尔运算的”译为未确定词的双语例句
    Detecting the loops for determination of the valid intersection lines greatly increases the efficiency and the reliability of the process.
    通过提取相交环来决定有效的相交线降低了位置关系判断的复杂性,提高了布尔运算的稳定性.
短句来源
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  boolean operations
Finally, the 3D integrated model was established by Boolean operations between 3D geological objects and engineering objects.
      
One challenge is to generate valid models at various LODs after an arbitrary rearrangement of features using a certain LOD criterion, because composite Boolean operations consisting of union and subtraction are not commutative.
      
Nicolog compiles a very general class of built-in constraints into equivalent sets of PCs, allowing an arbitrary mixture of integer (easily extensible to real) and Boolean operations.
      
Arithmetic expressions for switching functions are introduced through the replacement of Boolean operations with arithmetic equivalents.
      
In particular we settle two open questions of [1] concerning the derivability of inference rules for Boolean operations on the right side of multivalued dependencies.
      
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  boolean operation
Inspired by digital technique, we introduce two kinds of boolean operation into GA to develop a novel mutation operator and discuss its contribution to preventing the loss of critical alleles.
      
This separation makes the Boolean operation process simple and robust.
      
Using Graftree, the Boolean operation produces no risk of yielding topological conflicts, which often cause the simulation to stop abnormally.
      
The method has been powered adding a multi-layered, bit-masking oriented data structure and a boolean operation based control mixer, allowing special blended crossover operators obtained by superposition of the standard ones.
      
Then, through a Boolean operation of the splint blank and the maxilla-mandibula model, the dental splint model is formed.
      
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This paper presents an interactive-parameter method which makes the generation of engineering drawings interactive, parameterizea, uniform and practical. Based on the loop data structure and Boolean operation algorithm, the processing of detail and assembly drawings is unified. Driven by the parameter of dimension, the drafting and marking unify. Based on the parameterization, the processing is automatic. The method of interactive-parameter is very practical.This function has been realized in our PLAGE system....

This paper presents an interactive-parameter method which makes the generation of engineering drawings interactive, parameterizea, uniform and practical. Based on the loop data structure and Boolean operation algorithm, the processing of detail and assembly drawings is unified. Driven by the parameter of dimension, the drafting and marking unify. Based on the parameterization, the processing is automatic. The method of interactive-parameter is very practical.This function has been realized in our PLAGE system. The system has been applied in some factories.

本文以参数化设计为考察之立足点,以工程图样处理为目的,对几类处理方法进行了比较,并相应提出我们的处理策略——交互参数法。使工程图样生成具有交互性、参数化、一体化、实用化之功能,即以环数据结构和布尔运算算法为前提实施零件图、装配图处理一体化,以尺寸为参变量实现图形与标注处理的一体化,以参数化为前提实现自动化,以交互参数法使其实用化。这些功能已在我们研制的PLAGEII系统中实现,并应用于企业产品设计中.

The tradirional verification of 3 - dimension holes is simplified to 2 - dimension. This method often makes mistakes in the higher accuracy condition. Other methods such as surface net treatment, boolean calculation, are very complicated. In this paper, we introduce an accurate verification method for 3 - dimension holes from the theory of calculation geometry. It is simple, efficient and practical.

二维空间孔道的传统校核方法是把三维问题化成二维问题,再简化或近似处理,这样的方法在高精度场合往往不能满足设计要求;还有的是对孔表面网格化、布尔运算等,算法复杂,难于实现。本文从计算几何理论上探讨了三维空间孔的精确校核方法,简单、易行、可靠。

This paper discussed the development technology of 3 dimension(3D) parametric drawing application software and provided an example for designing application. According to parts′ construction, a part is disassembled into some basis of 3D solid drawing elements and then are these elements combined into 3D solid model by using Boew operation. Then profile view and abstracting necessary message on solid model would produce cutaway view. This designing idea has some value to 3D parametric drawing application software...

This paper discussed the development technology of 3 dimension(3D) parametric drawing application software and provided an example for designing application. According to parts′ construction, a part is disassembled into some basis of 3D solid drawing elements and then are these elements combined into 3D solid model by using Boew operation. Then profile view and abstracting necessary message on solid model would produce cutaway view. This designing idea has some value to 3D parametric drawing application software for reference due to its understandable and realizable property.

探讨了在AutoCAD平台上进行三维参数绘图应用软件开发的技术,即根据空间零件的结构特点,将零件分解为一定数目的三维基本实体图元,进而对这些图元进行加、减、并、交布尔运算,建立零件实体模型.从实体模型中,提取轮廓几何信息和剖面几何信息并作定向投影处理,可得到零件的各个视图(包括剖视图).其设计方法易于理解,易于实现,对三维参数化绘图应用软件的开发具有一定的参考价值.

 
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