ISO 10303-513-2000 PDF

Full title and description

Industrial automation systems and integration — Product data representation and exchange — Part 513: Application interpreted construct: Elementary boundary representation. This part of ISO 10303 (STEP) defines an application‑interpreted construct (AIC) for representing elementary boundary‑representation (B‑rep) shape models using elementary geometry and explicit topology; the document is published as ISO 10303‑513:2000 and is available in PDF form from ISO and national standards bodies.

Abstract

This part specifies the interpretation of generic STEP resources to define an elementary boundary representation model. It covers the definition of an elementary_brep_shape_representation (one or more manifold_solid_breps with elementary geometry and complete explicit topology), unbounded geometry for curves and surfaces used on faces, definition of topological structure for B‑rep models, elementary curves (lines and conics), elementary surfaces, geometric transformations, polylines and the use of topology to bound geometric entities.

General information

• Status: Published (confirmed by ISO life‑cycle reviews).
• Publication date: September 2000 (Edition 1: 2000‑09).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.040.40 (Industrial automation systems and integration).
• Edition / version: Edition 1 (2000).
• Number of pages: 56 pages.

Scope

ISO 10303‑513:2000 defines a focused AIC for elementary B‑rep geometry within the STEP framework. Its scope includes the EXPRESS data constructs and the interpretation rules necessary to represent manifold solid B‑reps composed of elementary curves and surfaces (lines, conics, elementary_surfaces), unbounded geometric definitions used for face boundaries, explicit topological data (vertices, edges, loops, faces, shells), polylines and geometric transformations needed to place and manipulate these entities in 3D space. The part is intended to work with the generic integrated resources and other STEP modules to enable interoperable exchange of simple B‑rep geometry.

Key topics and requirements

• Definition of elementary_brep_shape_representation composed of one or more manifold_solid_breps with explicit topology.
• Support for elementary curves (lines, conics) and elementary surfaces plus unbounded geometry used in face definitions.
• Specification of topology constructs (vertices, edges, loops, faces, shells) and their binding to geometric representations.
• Use of STEP EXPRESS schema conventions and dependence on integrated resources and STEP modular architecture (AIC / 500‑series approach).
• Requirements for implementers to conform to the EXPRESS data structures and topology/geometry interpretation rules to ensure exchange compatibility between CAD/CAM/CAE tools.

Typical use and users

Primary users are CAD/CAM/CAE software developers and integrators who need a concise, implementation‑level B‑rep representation for exchange or archiving of simple solid geometry. Other users include system integrators, data conversion specialists, and archivists applying STEP for neutral file exchange and long‑term storage of 3D product geometry. Industry adopters tend to be mechanical and aerospace engineering groups, tooling and manufacturing suppliers, and organizations using STEP APs that reference AICs.

Related standards

ISO 10303‑513 is part of the ISO 10303 (STEP) family and sits in the 500‑series of Application Interpreted Constructs (AICs). It works alongside other STEP parts and APs that handle geometry and product data (for example AP 203, AP 204, AP 242 and the integrated resources/modules referenced by those APs). Users will commonly apply this part together with the STEP description and implementation parts (EXPRESS, STEP‑File, SDAI) and relevant integrated resources.

Keywords

ISO 10303, STEP, AIC, elementary boundary representation, B‑rep, manifold_solid_brep, elementary geometry, EXPRESS, CAD data exchange, topology, unbounded geometry.

FAQ

Q: What is this standard?

A: ISO 10303‑513:2000 is a STEP Application Interpreted Construct that defines an elementary boundary‑representation model (elementary B‑rep) for representing simple solid geometry with explicit topology.

Q: What does it cover?

A: It covers EXPRESS data constructs and interpretation rules for elementary_brep_shape_representation, manifold solid B‑reps with elementary curves and surfaces (lines, conics), unbounded geometry, topology constructs (edges, faces, shells), polylines and geometric transformations required to represent and exchange such B‑reps.

Q: Who typically uses it?

A: CAD/CAM/CAE software developers, data exchange specialists, system integrators and organizations needing a neutral, implementation‑level B‑rep format for exchanging or archiving 3D geometry. It is also used as a building block within larger STEP AP implementations.

Q: Is it current or superseded?

A: The document is the first edition published in September 2000. According to ISO’s lifecycle records this part has been maintained under periodic review and remains published/confirmed in ISO’s records; implementers should verify with ISO or their national body for the latest status or any amendments before use.

Q: Is it part of a series?

A: Yes — it is part of the ISO 10303 STEP family and specifically the 500‑series AICs (application interpreted constructs). It is intended to be used alongside other STEP parts and APs that define resources, modules and application protocols.

Q: What are the key keywords?

A: STEP, AIC, B‑rep, elementary geometry, manifold_solid_brep, EXPRESS, CAD data exchange, topology, unbounded geometry. (These reflect the core concepts defined in ISO 10303‑513:2000.)