ISO 10303-501:2000
(Main)Industrial automation systems and integration — Product data representation and exchange — Part 501: Application interpreted construct: Edge based wireframe
Industrial automation systems and integration — Product data representation and exchange — Part 501: Application interpreted construct: Edge based wireframe
This part of ISO 10303 specifies the interpretation of the integrated resources to satisfy requirements for the representation of the product shape using three-dimensional wireframe models that are bounded by a set of connected edge sets. The following are within the scope of this part of ISO 10303: — the representation of wireframe models that are described by a graph of edges and vertices where the edges intersect only at their vertices; — the representation of a wireframe model by one or more connected edge sets that shall not overlap or intersect except at their vertices or edges; — points defined in a three-dimensional coordinate space; — curves, including b-splines, defined in a three-dimensional coordinate space; — the representation of a single wireframe model or an assembly of wireframe models. The following are outside the scope of this part of ISO 10303: — geometry defined in a two-dimensional coordinate space; — surface geometry; — solid geometry; — shell topology.
Systèmes d'automatisation industrielle et intégration — Représentation et échange de données de produits — Partie 501: Constuction interprétée d'application: Cadre en fil métallique basé sur un côté
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ISO 10303-501:2000(E)
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ii © ISO 2000 – All rights reserved
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INTERNATIONAL STANDARD ©ISO ISO 10303-501:2000(E)
Industrial automation systems and integration —
Product data representation and exchange —
Part 501:
Application interpreted construct: Edge-based wireframe
1 Scope
This part of ISO 10303 specifies the interpretation of the integrated resources to satisfy requirements for the
representation of the product shape using three-dimensional wireframe models that are bounded by a set of
connected edge sets.
The following are within the scope of this part of ISO 10303:
— the representation of wireframe models that are described by a graph of edges and vertices where the
edges intersect only at their vertices;
— the representation of a wireframe model by one or more connected edge sets that shall not overlap or
intersect except at their vertices or edges;
— points defined in a three-dimensional coordinate space;
— curves, including b-splines, defined in a three-dimensional coordinate space;
— the representation of a single wireframe model or an assembly of wireframe models.
The following are outside the scope of this part of ISO 10303:
— geometry defined in a two-dimensional coordinate space;
— surface geometry;
— solid geometry;
— shell topology.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute
provisions of this part of ISO 10303. For dated references, subsequent amendments to, or revisions of, any
of these publications do not apply. However, parties to agreements based on this part of ISO 10303 are
1
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ISO 10303-501:2000(E) ©ISO
encouraged to investigate the possibility of applying the most recent editions of the normative documents
indicated below. For undated references, the latest edition of the normative document referred to applies.
Members of ISO and IEC maintain registers of currently valid International Standards.
ISO/IEC 8824-1:1995, Information technology - Open systems interconnection - Abstract syntax notation
one (ASN.1) — Part 1: Specification of basic notation.
ISO 10303-1:1994, Industrial automation systems and integration — Product data representation and
exchange — Part 1: Overview and fundamental principles.
ISO 10303-11:1994, Industrial automation systems and integration — Product data representation and
exchange — Part 11: Description methods: The EXPRESS language reference manual.
ISO 10303-41:1994, Industrial automation systems and integration — Product data representation and
exchange — Part 41: Integrated generic resources: Fundamentals of product description and support.
ISO 10303-42:1994, Industrial automation systems and integration — Product data representation and
exchange — Part 42: Integrated generic resources: Geometric and topological representation.
ISO 10303-43:1994, Industrial automation systems and integration — Product data representation and
exchange — Part 43: Integrated generic resources: Representation structures.
ISO 10303-202:1996, Industrial automation systems and integration — Product data representation and
exchange — Part 202: Application protocol: Associative draughting.
3 Terms, definitions, and abbreviations
3.1 Terms defined in ISO 10303-1
For the purpose of this part of ISO 10303, the following terms defined in ISO 10303-1 apply.
— application;
— application context;
— application protocol;
— implementation method;
— integrated resource;
— interpretation;
— model;
— product;
—
...
INTERNATIONAL ISO
STANDARD 10303-501
First edition
2000-03-01
Industrial automation systems and
integration — Product data representation
and exchange —
Part 501:
Application interpreted construct:
Edge-based wireframe
Systèmes d'automatisation industrielle et intégration — Représentation
et échange de données de produits —
Partie 501: Construction interprétée d'application: Cadre en fil
métallique basé sur un côté
Reference number
ISO 10303-501:2000(E)
©
ISO 2000
---------------------- Page: 1 ----------------------
ISO 10303-501:2000(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not
be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this
file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this
area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2000
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body
in the country of the requester.
ISO copyright office
Case postale 56 � CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 734 10 79
E-mail copyright@iso.ch
Web www.iso.ch
Printed in Switzerland
ii © ISO 2000 – All rights reserved
---------------------- Page: 2 ----------------------
©ISO ISO 10303-501:2000(E)
Contents Page
1 Scope . 1
2 Normativereferences . 1
3 Terms,definitions,andabbreviations . 2
4 EXPRESSshort listing . 3
4.1 Introduction . 4
4.2 Fundamental concepts and assumptions . 4
4.3 aic_edge_based_wireframe entity definition: edge_based_wireframe_shape_representation . . . 4
4.4 aic_edge_based_wireframe function definitions . 6
4.4.1 valid_wireframe_edge_curve . 6
4.4.2 valid_wireframe_vertex_point . 7
Annex A (normative) Short names of entities . 9
AnnexB(normative) Informationobject registration . 10
B.1 Document identification . 10
B.2 Schemaidentification . 10
AnnexC(informative) EXPRESS-Gdiagrams . 11
AnnexD(informative) Computer interpretablelistings . 18
Index . 19
Figures
Figure C.1- aic_edge_based_wireframe - EXPRESS-Gdiagram 1of 6. 12
Figure C.2- aic_edge_based_wireframe - EXPRESS-Gdiagram 2of 6. 13
Figure C.3- aic_edge_based_wireframe - EXPRESS-Gdiagram 3of 6. 14
Figure C.4- aic_edge_based_wireframe - EXPRESS-Gdiagram 4of 6. 15
Figure C.5- aic_edge_based_wireframe - EXPRESS-Gdiagram 5of 6. 16
Figure C.6- aic_edge_based_wireframe - EXPRESS-Gdiagram 6of 6. 17
Tables
Table A.1 - Short names of entities . 9
iii
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ISO 10303-501:2000(E) ©ISO
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee has
been established has the right to be represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by
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