ISO 10303-508:2001

Industrial automation systems and integration — Product data representation and exchange — Part 508: Application interpreted construct: Non manifold surface

This part of ISO 10303 specifies the interpretation of the integrated resources to satisfy requirements for the description of geometric shapes by means of non-manifold surface models. The following are within the scope of this part of ISO 10303: — 3D points; — points defined in the parameter space of curves or surfaces; — 3D curves; — curves defined in the parameter space of surfaces; NOTE - Such curves are also known as pcurves or cons, which are acronyms for parametrised curve and curve on surface. — the elementary curve types line, circle, ellipse, parabola, and hyperbola; — intersection curves; — polylines that consist of at least three points; — the elementary surface types plane, cylinder, cone, torus, and sphere; — swept surfaces created by rotation or linear extrusion of a curve; — sculptured curves and surfaces; — trimming of curves and surfaces using topological entities; — composition of curves and surfaces using topological entities; — replication of curves, surfaces, and surface models; — 3D offsets of curves and surfaces; — non-manifolds. The following are outside the scope of this part of ISO 10303: — unbounded geometry; — self-intersecting geometry; — geometry in a 2D cartesian coordinate space; — replication of points; — topology without an association to a corresponding geometric domain.

Systèmes d'automation industrielle et intégration — Représentation et échange de données de produits — Partie 508: Établissement interprété d'application: Surface non manifold

General Information

• Status: Published
• Publication Date: 17-Apr-2001
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: ISO/TC 184/SC 4 - Industrial data
• Drafting Committee: ISO/TC 184/SC 4/WG 12 - STEP product modelling and resources
• Current Stage: 9060 - Close of review
• Start Date: 04-Mar-2029

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 10303-508
First edition
2001-04-15
Industrial automation systems and
integration — Product data representation
and exchange —
Part 508:
Application interpreted construct:
Non-manifold surface
Systèmes d'automation industrielle et intégration — Représentation
et échange de données de produits —
Partie 508: Établissement interprété d'application: Surface non manifold
Reference number
ISO 10303-508:2001(E)
©
ISO 2001

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ISO 10303-508:2001(E)
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ISO 10303-508:2001(E)
Contents Page
1 Scope . . . . . . . . . 1
2 Normativereferences . . . . . . . . 2
3 Terms,definitions,andabbreviations . . . . . . 3
3.1 Terms defined in ISO 10303–1 . . . . . . 3
3.2 Terms defined in ISO 10303–42 . . . . . . . . 4
3.3 Terms defined in ISO 10303–202 . . . . . . . 4
3.4 Terms defined in ISO 10303–511 . . . . . . . 4
3.5 Othertermsanddefinitions . . . . . . 5
3.6 Abbreviations . . . . . . . . 5
4 EXPRESSshortlisting . . . . . . . . 5
4.1 Fundamental concepts and assumptions . . . . . 7
4.2 aic_non_manifold_surface schema entity definition: non_manifold_surface_shape_re-
presentation . . . . . . . . . . 7
4.3 aic_non_manifold_surface function definitions . . . . 14
4.3.1 nmsf_curve_check . . . . . . . 14
4.3.2 nmsf_surface_check . . . . . . 19
Annex A (normative) Short names of entities. . . . . 23
AnnexB(normative) Informationobjectregistration . . . . 24
B.1 Documentidentification . . . . . . . 24
B.2 Schemaidentification . . . . . . . 24
Annex C (informative) EXPRESS-G diagrams . . . . . 25
AnnexD(informative) Computerinterpretablelistings . . . . 49
Index . . . . . . . . . . 50
Figures
Figure C.1 EXPRESS-G diagram 1 of 22 . . . . . . . . 27
Figure C.2 EXPRESS-G diagram 2 of 22 . . . . . . . . 28
Figure C.3 EXPRESS-G diagram 3 of 22 . . . . . . . . 29
Figure C.4 EXPRESS-G diagram 4 of 22 . . . . . . . . 30
Figure C.5 EXPRESS-G diagram 5 of 22 . . . . . . . . 31
Figure C.6 EXPRESS-G diagram 6 of 22 . . . . . . . . 32
Figure C.7 EXPRESS-G diagram 7 of 22 . . . . . . . . 33
Figure C.8 EXPRESS-G diagram 8 of 22 . . . . . . . . 34
Figure C.9 EXPRESS-G diagram 9 of 22 . . . . . . . . 35
Figure C.10 EXPRESS-G diagram 10 of 22 . . . . . . . 36
© ISO 2001 – All rights reserved iii

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ISO 10303-508:2001(E)
Figure C.11 EXPRESS-G diagram 11 of 22 . . . . . . . 37
Figure C.12 EXPRESS-G diagram 12 of 22 . . . . . . . 38
Figure C.13 EXPRESS-G diagram 13 of 22 . . . . . . . 39
Figure C.14 EXPRESS-G diagram 14 of 22 . . . . . . . 40
Figure C.15 EXPRESS-G diagram 15 of 22 . . . . . . . 41
Figure C.16 EXPRESS-G diagra
...