几何产品规范（GPS）.过渡规范

[中文适用范围]： 本文档定义了许多规范运算符，用于规范特征之间的扩展边缘过渡特征。 边缘过渡特征是连接两个相邻整体特征的整体特征。 延伸的边缘过渡特征包括相邻特征的部分。 所有这些规范适用于延伸边缘过渡特征中定义方向上的任何线。 本文件还定义了此类转换规范的规范修饰符和绘图指示。 还规定了所使用的图形符号的比例和尺寸。 本文档中定义的规范适用于相对简单的边缘过渡功能，例如确保组装时不发生干涉。 对于更复杂的功能，几何公差提供了更精确的工具。 本文件有意仅限于两个平面之间以及圆柱体和名义上与其垂直的平面之间的边缘过渡特征。 附录 A 给出了识别公差特征和相邻参考部分的算法的第一种方法。 随着更多经验的积累，该算法可能会发生变化。 本文档提供了一组工具来表达多种转换规范。 它不提供有关功能或用途与转换规范之间关系的任何信息。 注 1：角点（三个或更多特征之间的过渡）不是边缘过渡特征，因此不包含在本文件中。 注 2：两个单一特征之间存在边缘过渡特征。 定义的边缘过渡特征具有定义的标称形状并且不尖锐 (r = 0)。 [外文原描述]： This document defines a number of specification operators for the specification of extended edge transition features between features. An edge transition feature is an integral feature connecting two adjacent integral features. The extended edge transition feature includes portions of the adjacent features. All these specifications apply to any line in a defined direction in the extended edge transition feature. This document also defines the specification modifiers and the drawing indications for such transition specifications. The proportions and dimensions of the graphical symbols to be used are also specified. The specifications defined in this document are suitable for relatively simple edge transition functions, for example ensuring assembly without interference. For more complex functions, geometrical tolerancing offers more precise tools. This document is by intention limited to only edge transition features between two planes and between a cylinder and a plane nominally perpendicular to it. Annex A gives the first approach for an algorithm to identify toleranced features and adjacent reference sections. This algorithm is subject to change as more experience is gathered. This document provides a set of tools to express several transition specifications. It does not present any information on the relationship between a function or a use and a transition specification. NOTE 1 Corners (the transition between three or more features) are not edge transition features and are consequently not covered by this document. NOTE 2 An edge transition feature exists between two single features. A defined edge transition feature has a defined nominal shape and is not sharp ( r = 0).