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首页> 外文会议>Intelligent manufacturing systems 1998(IMS'98) >DATA DEPENDENCY MANIPULATION TO SUPPORT CAD SYSTEMS WITH BOOLEAN OPERATIONS
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DATA DEPENDENCY MANIPULATION TO SUPPORT CAD SYSTEMS WITH BOOLEAN OPERATIONS

机译：数据依赖操作，支持具有布尔操作的CAD系统

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摘要

In this work, the need of the CAD systems of making available to the user means of manipulating the created solid in a more flexible way is emphasized. The parametric and variational methodologies come as a good option for the consistent and automatic manipulation of changes imposed by the designer, supporting the interactive nature of a product development process. The importance of the sequence of operations adopted by the designer when defining the computational model is verified and two functions, UNDO and REDO, were identified as necessary for a satisfactory manipulation of solid models in CAD systems based on the history of operations execution. For a consistent support to these functions, it is necessary the maintenance of dependency information among the executed operations. The proposal of this work is to present a representation of the dependencies among the executed operations. The proposal of this work is to present a representation of the dependencies among operations of CAD systems that support Boolean Operations. To achieve this, it will be used two important concepts: Base Solid and Relative Dimensions.
机译：在这项工作中，强调了CAD系统对用户提供以更灵活的方式操纵所创建的实体的手段的需求。参数化和变式方法学是对设计师施加的变更进行一致和自动处理的好选择，从而支持产品开发过程的交互性质。验证了设计人员在定义计算模型时采用的操作顺序的重要性，并根据操作执行的历史，确定了两个功能（UNDO和REDO）对于在CAD系统中令人满意地操纵实体模型是必要的。为了对这些功能的一致支持，必须维护所执行操作之间的依赖关系信息。这项工作的建议是呈现已执行操作之间的依赖关系。这项工作的提议是要介绍支持布尔运算的CAD系统的运算之间的依赖性。为此，将使用两个重要概念：基本实体尺寸和相对尺寸。

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