工业自动化系统和集成 零件库 第31部分:实现方法:几何编程接口

[中文适用范围]： ISO 13584 的这一部分指定了一个应用程序编程接口，使应用程序能够生成独立于目标用户系统的几何模型。 该接口允许描述 ISO 13584 零件库中零件族参数化形状表示的程序的可移植性。 以下内容属于本国际标准的范围：在独立于目标系统的建模系统内生成几何表示的程序、指定通过基于约束的几何定义创建的几何表示的程序、构建独立创建的几何表示的程序目标系统的程序，为创建的表示的符号可视化指定表示样式属性的程序，支持形状表示的技术绘图标准约定的程序，包括 2D 隐藏线机制。 以下内容不属于本国际标准的范围： 对要在接收系统设备上显示的图像的精确控制， 应在接收系统上创建的数据的精确定义， 参数模型在接收系统上的存储系统。 [外文原描述]： This part of ISO 13584 specifies an application programming interface that enables an application program to generate geometric models that are independent of the target user system. The interface allows portability of programs that describe parametric shape representations of parts families held in an ISO 13584 parts library. The following are within the scope of this International Standard: — programs to generate geometric representations within a modelling system that are independent of the target system, — programs that specify geometric representations that are created through constraint-based geometric definitions, — programs that structure geometric representations created independently of the target system, — programs that specify presentation style attributes for symbolic visualisation of representations created, — programs that support technical drawing standard conventions for shape representation, including a 2D hidden line mechanism. The following are outside the scope of this International Standard: — The precise control of the image to be displayed on the receiving system devices, — The precise definition of the data that shall be created on the receiving system, — The storage of a parametric model on the receiving system.