1、Reference number ISO 10303-511:2001(E) ISO 2001 INTERNATIONAL STANDARD ISO 10303-511 First edition 2001-04-15 Industrial automation systems and integration Product data representation and exchange Part 511: Application interpreted construct: Topologically bounded surface Systmes dautomatisation indu
2、strielle et intgration Reprsentation et change de donnes de produits Partie 511: Construction interprte: Surface dlimite topologiquementISO 10303-511:2001(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed bu
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7、.ch Web www.iso.ch Printed in Switzerland ii ISO 2001 All rights reservedISO 10303-511:2001(E) ISO 2001 All rights reserved iii Contents Page 1 S c o p e. 1 2 N o r m a t i v er e f e r e n c e s. 2 3 T e r m s ,d e n i t i o n sa n da b b r e v i a t i o n s. 2 3.1 Terms dened in ISO 103031 2 3.2 T
8、erms dened in ISO 1030342 . 3 3.3 Terms dened in ISO 10303202. 3 3 . 4 O t h e rd e n i t i o n s. 3 3 . 5 A b b r e v i a t i o n s. 4 4 E X P R E S Ss h o r tl i s t i n g 4 4.1 Fundamental concepts and assumptions . 6 4.2 aic topologically bounded surface schema entity denition: advancedf a c e 8
9、 Annex A (normative) Short names of entities 1 2 A n n e xB( n o r m a t i v e ) I n f o r m a t i o no b j e c tr e g i s t r a t i o n . 1 3 B . 1 D o c u m e n ti d e n t i c a t i o n. 1 3 B . 2 S c h e m ai d e n t i c a t i o n. 1 3 A n n e xC( i n f o r m a t i v e ) C o m p u t e r i n t e r
10、 p r e t a b l el i s t i n g s. 1 4 A n n e xD( i n f o r m a t i v e ) E X P R E S S Gd i a g r a m s . 1 5 I n d e x . 2 4 Figures Figure D.1 aic topologically boundeds u r f a c eE X P R E S S Gd i a g r a mp a g e1o f8 1 6 Figure D.2 aic topologically boundeds u r f a c eE X P R E S S Gd i a g
11、r a mp a g e2o f8 1 7 Figure D.3 aic topologically boundeds u r f a c eE X P R E S S Gd i a g r a mp a g e3o f8 1 8 Figure D.4 aic topologically boundeds u r f a c eE X P R E S S Gd i a g r a mp a g e4o f8 1 9 Figure D.5 aic topologically boundeds u r f a c eE X P R E S S Gd i a g r a mp a g e5o f8
12、2 0 Figure D.6 aic topologically boundeds u r f a c eE X P R E S S Gd i a g r a mp a g e6o f8 2 1 Figure D.7 aic topologically boundeds u r f a c eE X P R E S S Gd i a g r a mp a g e7o f8 2 2 Figure D.8 aic topologically boundeds u r f a c eE X P R E S S Gd i a g r a mp a g e8o f8 2 3 Ta b l e s Tab
13、le A.1 Short names of entities . . . . 1 2ISO 10303-511:2001(E) iv ISO 2001 All rights reserved 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 carr
14、ied 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.
15、ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical commi
16、ttees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this part of ISO 10303 may be the subject of patent rights. ISO sh
17、all not be held responsible for identifying any or all such patent rights. This International Standard is organized as a series of parts, each published separately. The structure of this International Standard is described in ISO 10303-1. Each part of this International Standard is a member of one o
18、f the following series: description methods, implementation methods, conformance testing methodology and framework, integrated generic resources, integrated application resources, application protocols, abstract test suites, application interpreted constructs, and application modules. This part is a
19、 member of the application interpreted construct series. A complete list of parts of ISO 10303 is available from the Internet:Annexes A and B form a normative part of of this part of ISO 10303. Annexes C and D are for information only.ISO 10303-511:2001(E) ISO 2001 All rights reserved v Introduction
20、 ISO 10303 is an International Standard for the computerinterpretable representation and exchange of product data. The objective is to provide a neutral mechanism capable of describing product data throughout the life cycle of a product independent from any particular system. The nature of this de s
21、cription makes it suitable not only for neutral le exchange, but also as a basis for implementing and sharing product databases and archiving. This International Standard is organized as a series of parts, each published separately. The parts of ISO 10303 fall into one of the following series: descr
22、iption methods, integrated resources, application interpreted constructs, application protocols, abstract test suites, implementation methods, and confor mance testing. The series are described in ISO 103031. This part of ISO 10303 is a member of the application interpreted construct series. An appl
23、ication interpreted construct (AIC) provides a logical grouping of interpreted constructs that supports a specic functionality for the usage of product data across multiple application contexts. An interpreted construct is a common interpretation of the integrated resources that supports shared info
24、r mation requirements among application protocols. This document species the application interpreted construct for topologically bounded surface. This is the nal draft of a 500 series part edition of the AIC for the denition of a face with explicit topology and fully dened geometry. The face and edg
25、e geometry includes both elementary and freeform geometry.INTERNATIONAL STANDARD ISO 10303-511:2001(E) Industrial automation systems and integration Product data representation and exchange Part511: Applicationinterpretedconstruct:Topologicallybounded surface 1S c o p e This part of ISO 10303 specie
26、s the interpretation of the itegrated resources to satisfy the requirement for the denition of a face with explicit topological bounds and fully dened geometry. The following are within the scope of this part of ISO 10303: 3D geometry; Bspline curves and surfaces; conics; elementary curves; elementa
27、ry surfaces; polylines; pcurves; sculptured surfaces; surface curves referencing pcurves; swept surfaces; twisted curves; unbounded geometry; geometric transformations; use of topology to bound geometric entities. The following are outside the scope of this part of ISO 10303: 2D geometry other than
28、for the denition of a pcurve in the parameter space of a surface; c ISO2001 Allrightsreserved1ISO10303 511:2001(E) bounded curves other than polylines and Bspline curves; bounded surfaces other than Bspline surfaces; offset curves and surfaces. 2 Normative references The following normative document
29、s 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 encouraged to inves
30、tigate the possibility of applying the most recent editions of the normative docu ments 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/IEC8824 1:1998,
31、InformationtechnologyAbstractSyntaxNotation One (ASN.1): Specification ofbasicnotation. ISO 103031: 1994, Industrial automation systems and integration Product data representation and exchange Part 1 : Overview and fundamental principles. ISO 1030311: 1994, Industrial automation systems and integrat
32、ion Product data representation and exchange Part 11 : Description methods: The EXPRESS language reference manual. ISO 1030341: 1994, Industrial automation systems and integration Product data representation and exchange Part 41 : Integrated generic resources: Fundamentals of product description and
33、 support. ISO 1030342: 1994, Industrial automation systems and integration Product data representation and exchange Part 42 : Integrated generic resources: Geometric and topological representation. ISO 1030343: 1994, Industrial automation systems and integration Product data representation and excha
34、nge Part 43 : Integrated generic resources: Representation structures. ISO10303 202:1996,IndustrialautomationsystemsandintegrationProductdatarepresentationand exchange Part 202: Application protocol: Associative draughting 3 Terms, denitions and abbreviations 3.1 Terms dened in ISO 103031 For the pu
35、rposes of this part of ISO 10303, the following terms dened in ISO 103031 apply. application; 2c ISO2001 AllrightsreservedISO10303 511:2001(E) application context; application protocol; implementation method; integrated resource; interpretation; product data; 3.2 Terms dened in ISO 1030342 For the p
36、urposes of this part of ISO 10303, the following terms dened in ISO 1030342 apply. axisymmetric; boundary; bounds; coordinate space; curve; open curve; orientable; surface; topological sense. 3.3 Terms dened in ISO 10303202 For the purposes of this part of ISO 10303, the following term dened in ISO
37、10303202 applies. 3.3.1 application interpreted construct (AIC) a logical grouping of interpreted constructs that supports a specic functionality for the usage of product data across multiple application contexts. 3.4 Other denitions 3.4.1 c ISO2001 Allrightsreserved3ISO10303 511:2001(E) advanced fa
38、ce A face dened on a surface. This face is a nite portion of the surface that has its boundaries fully dened using topological entities with associated geometric curves. The surface geometry is required to be either an elementary surface, or a swept surface, or a Bspline surface. 3.4.2 sculptured su
39、rface A biparametric freeform surface. In this part of ISO 10303 a sculptured surface is represented by a Bspline surface. 3.4.3 swept surface A surface obtained by translating or revolving a curve. 3.4.4 twisted curve A parametric curve in threedimensional space. In this part of ISO 10303 a twisted
40、 curve is represented by a Bspline curve. 3.5 Abbreviations For the purposes of this part of ISO 10303, the following abbreviations apply. AIC Application Interpreted Construct AP Application Protocol 4 EXPRESS short listing This clause species the EXPRESS schema that uses elements from the integrat
41、ed resources and con tains the types, entity specializations, and functions that are specic to this part of ISO 10303. NOTE 1 There may be subtypes and items of select lists that appear in the integrated resources that are not imported into the AIC. Constructs are eliminated from the subtype tree or
42、 select list through the use of the implicit interface rules of ISO 1030311. References to eliminated constructs are outside the scope of the AIC. In some cases, all items of the select list are eliminated. Because AICs are intended to be implemented in the context of an application protocol, the it
43、ems of the select list will be dened by the scope of the application protocol. This application interpreted construct provides a consistent set of geometric and topological entities for the denition of a face with fully dened geometry and explicit topology dening the boundaries. The permissible type
44、s of face geometry include elementary surfaces and Bspline surfaces. Edges are required to have their geometry dened by curves, that may include pcurves. The highest level entity in this AIC is advanced face which is a specialised type of face surface (see ISO 1030342). The rules on this entity ensu
45、re that the topology and geometry are fully dened. 4c ISO2001 AllrightsreservedISO10303 511:2001(E) EXPRESS specication: *) SCHEMA aic_topologically_bounded_surface; USE FROM geometry_schema (axis2_placement_2d, axis2_placement_3d, bezier_curve, bezier_surface, b_spline_curve_with_knots, b_spline_su
46、rface_with_knots, cartesian_point, circle, composite_curve_on_surface, conical_surface, cylindrical_surface, degenerate_toroidal_surface, direction, ellipse, geometric_representation_context, hyperbola, line, parabola, pcurve, plane, polyline, quasi_uniform_curve, quasi_uniform_surface, rational_b_s
47、pline_curve, rational_b_spline_surface, spherical_surface, surface_curve, surface_of_linear_extrusion, surface_of_revolution, swept_surface, toroidal_surface, uniform_curve, uniform_surface, vector); USE FROM topology_schema (edge, edge_curve, edge_loop, face_bound, face_outer_bound, face_surface, o
48、riented_edge, path, vertex_loop, vertex_point); USE FROM representation_schema c ISO2001 Allrightsreserved5ISO10303 511:2001(E) (definitional_representation, parametric_representation_context); USE FROM measure_schema (parameter_value); (* NOTE 2 The entities edge, path and swept surface are explici
49、tly interfaced, i.e., included in the USE FROM lists, to allow rules in the advanced face entity to access attributes of these entities. For the use of this AIC these entities shall only be instantiated as one of their subtypes. NOTE 3 The schemas referenced above can be found in the following parts of ISO 10303: geometry schema ISO 1030342 t
