1、 Reference number ISO 10303-112:2006(E) ISO 2006INTERNATIONAL STANDARD ISO 10303-112 First edition 2006-12-15 Industrial automation systems and integration Product data representation and exchange Part 112: Integrated application resource: Modelling commands for the exchange of procedurally represen
2、ted 2D CAD models Systmes dautomatisation industrielle et intgration Reprsentation et change de donnes de produits Partie 112: Ressources dapplication intgre: Commandes de modlisation pour lchange de modles 2D CAD reprsents en modes opratoires ISO 10303-112:2006(E) PDF disclaimer This PDF file may c
3、ontain embedded typefaces. In accordance with Adobes 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 respons
4、ibility of not infringing Adobes 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
5、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 2006 All rights reserved. Unless oth
6、erwise 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 ISOs member body in the country of the requester. ISO copyrig
7、ht office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reservedISO 10303-112:2006(E) ISO 2006 All rights reserved iii Contents Page 1 Scope 1 2 Normative references. 1 3 Terms, d
8、efinitions, and abbreviations 2 3.1 Terms defined in ISO 10303-1 2 3.2 Terms defined in ISO 10303-11 2 3.3 Terms defined in ISO 10303-55 2 3.4 Terms defined in ISO 10303-108 2 3.5 Other terms and definitions . 3 3.6 Abbreviations 3 4 Procedural sketch. 3 4.1 Introduction . 3 4.2 Fundamental concepts
9、 and assumptions 4 4.2.1 Identification of selected entities 4 4.2.2 Representation of construction history. 4 4.2.3 Representation of explicit constraints in a 2D sketch. 5 4.3 Procedural sketch type definitions. 5 4.3.1 polygon_circle_type . 5 4.3.2 circle_or_circular_arc. 5 4.3.3 line_or_trimmed_
10、line . 6 4.3.4 rotation_direction . 6 4.3.5 ps_sketch_element_select. 6 4.4 procedural_sketch entity definitions 7 4.4.1 sketch_command 7 4.4.2 sketch_create_curve_element. 7 4.4.3 create_line_segment . 7 4.4.4 create_line_segment_2_points 8 4.4.5 create_line_segment_point_tangent . 8 4.4.6 create_l
11、ine_segment_2_tangents 9 4.4.7 create_centreline. 10 4.4.8 create_polyline . 11 4.4.9 create_rectangle 11 4.4.10 create_polygon . 12 4.4.11 create_circular_arc 13 4.4.12 create_circular_arc_concentric. 13 4.4.13 create_circular_arc_3_tangents 14 4.4.14 create_circular_arc_centre_ends. 16 4.4.15 crea
12、te_circular_arc_start_centre_angle 17 4.4.16 create_circular_arc_start_centre_length. 18 4.4.17 create_circular_arc_start_end_angle 19 4.4.18 create_circular_arc_start_end_direction. 19 4.4.19 create_circular_arc_start_end_radius . 20 4.4.20 create_circular_arc_3_points 20 4.4.21 create_circular_arc
13、_angles . 21 4.4.22 create_circle 22 4.4.23 create_circle_centre_point 23 4.4.24 create_circle_concentric . 23 4.4.25 create_circle_3_tangents 24 4.4.26 create_circle_2_points 25 ISO 10303-112:2006(E) iv ISO 2006 All rights reserved4.4.27 create_circle_3_points 26 4.4.28 create_ellipse 27 4.4.29 cre
14、ate_ellipse_3_points 27 4.4.30 create_ellipse_centre_point 28 4.4.31 create_spline. 29 4.4.32 create_parabolic_arc. 30 4.4.33 create_fillet. 31 4.4.34 create_chamfer 32 4.4.35 create_divided_curve 34 4.4.36 sketch_operate_transform. 35 4.4.37 sketch_transform_translate. 36 4.4.38 sketch_transform_ro
15、tate . 36 4.4.39 sketch_transform_mirror 37 4.4.40 sketch_transform_scale 38 4.4.41 sketch_create_pattern_element. 39 4.4.42 create_pattern_rectangular 39 4.4.43 create_pattern_circular . 40 4.5 procedural_sketch function definitions . 42 4.5.1 distance_between_cartesian_points 42 4.5.2 non_collinea
16、r_2d_points 42 4.5.3 midpoint 43 4.5.4 distinct_points. 43 4.5.5 circular_type. 44 4.5.6 linear_type 44 4.5.7 centre_of_circle_or_circular_arc 45 4.5.8 have_pattern_elements_in_geometric_curve_set . 45 4.5.9 three_distinct_points. 45 Annex A (normative) Short names of entities 47 Annex B (normative)
17、 Information object registration 49 B.1 Document identification 49 B.2 Schema identification 49 Annex C (informative) Computer interpretable listings. 50 Annex D (informative) EXPRESS-G diagrams . 51 Annex E (informative) Example of intended usage of this part of ISO 10303 68 E.1 Example. 68 Index 7
18、0 Figures Figure 1 Schema level diagram of relationships between the ISO 10303-112 schemas and other resource schemas vii Figure 2 create_line_segment_2_points. 8 Figure 3 create_centreline 10 Figure 4 create_polyline. 11 Figure 5 create_rectangle . 12 Figure 6 create_circular_arc_concentric 14 Figu
19、re 7 create_circular_arc_3_tangents 16 Figure 8 create_circular_arc_centre_ends 17 Figure 9 create_circular_arc_start_centre_angle 18 ISO 10303-112:2006(E) ISO 2006 All rights reserved vFigure 10 create_circular_arc_3_points . 21 Figure 11 create_circular_arc_angles. 22 Figure 12 create_circle_centr
20、e_point . 23 Figure 13 create_circle_concentric. 24 Figure 14 create_circle_3_tangents 25 Figure 15 create_circle_3_points . 27 Figure 16 create_ellipse_3_points 28 Figure 17 create_ellipse_centre_point 29 Figure 18 create_spline 30 Figure 19 create_parabolic_arc 31 Figure 20 create_fillet 32 Figure
21、 21 create_chamfer. 34 Figure 22 sketch_divided_curve 35 Figure 23 sketch_transform_translate 36 Figure 24 sketch_transform_rotate. 37 Figure 25 sketch_transform_mirror 38 Figure 26 sketch_transform_scale 39 Figure 27 create_pattern_rectangular. 40 Figure 28 create_pattern_circular. 42 Figure D. 1 p
22、rocedural_sketch_schema EXPRESS-G diagram 1 of 16. 52 Figure D. 2 procedural_sketch_schema EXPRESS-G diagram 2 of 16. 53 Figure D. 3 procedural_sketch_schema EXPRESS-G diagram 3 of 16. 54 Figure D. 4 procedural_sketch_schema EXPRESS-G diagram 4 of 16. 55 Figure D. 5 procedural_sketch_schema EXPRESS-
23、G diagram 5 of 16. 56 Figure D. 6 procedural_sketch_schema EXPRESS-G diagram 6 of 16. 57 Figure D. 7 procedural_sketch_schema EXPRESS-G diagram 7 of 16. 58 Figure D. 8 procedural_sketch_schema EXPRESS-G diagram 8 of 16. 59 Figure D. 9 procedural_sketch_schema EXPRESS-G diagram 9 of 16. 60 Figure D.
24、10 procedural_sketch_schema EXPRESS-G diagram 10 of 16. 61 Figure D. 11 procedural_sketch_schema EXPRESS-G diagram 11 of 16. 62 Figure D. 12 procedural_sketch_schema EXPRESS-G diagram 12 of 16. 63 Figure D. 13 procedural_sketch_schema EXPRESS-G diagram 13 of 16. 64 Figure D. 14 procedural_sketch_sch
25、ema EXPRESS-G diagram 14 of 16. 65 Figure D. 15 procedural_sketch_schema EXPRESS-G diagram 15 of 16. 66 Figure D. 16 procedural_sketch_schema EXPRESS-G diagram 16 of 16. 67 Figure E. 1 Example. 68 Tables Table A. 1 Short names of entities . 47 ISO 10303-112:2006(E) vi ISO 2006 All rights reservedFor
26、eword 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 tech
27、nical 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
28、 electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated t
29、o 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 shall not be held respons
30、ible for identifying any or all such patent rights. ISO 10303-112 was prepared by Technical Committee ISO/TC 184, Industrial automation systems and integration, Subcommittee SC4, Industrial data. ISO 10303 consists of a series of parts, under the general title Industrial automation systems and integ
31、ration Product data representation and exchange. The structure of ISO 10303 is described in ISO 10303-1. Each part of ISO 10303 is a member of one of the following series: description methods, implementation methods, conformance testing methodology and framework, integrated generic resources, integr
32、ated application resources, application protocols, abstract test suites, application interpreted constructs, and application modules. This part is a member of the integrated application resources series. The integrated generic resources and the integrated application resources specify a single conce
33、ptual product data model. A complete list of parts of ISO 10303 is available from the following URL: http:/www.tc184-sc4.org/titles/STEP_Titles.htm ISO 10303-112:2006(E) ISO 2006 All rights reserved vii Introduction ISO 10303 is an International Standard for the computer-interpretable representation
34、 of product information and for the exchange of product data. The objective is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases,
35、 and as a basis for archiving. This part of ISO 10303 is a member of the integrated application resources series. This part of ISO 10303 specifies the procedural_sketch schema. This part of ISO 10303 provides general resources for the representation of modelling commands for the exchange of procedur
36、ally represented 2D CAD models. Procedural models have the advantage of being easy to edit, simply by changing values of parameters used as arguments of their constructional operations. Such models are said to embody design intent, in the sense that modifications to them conform to the method of cre
37、ation used by their original creator, and they also comply with any constraints implied by the particular constructional operations used. ISO 10303-55 specifies the resource constructs for the representation of models of the procedural or construction history type, defined in terms of the sequence o
38、f constructional operations used to build them. The mechanisms provided in ISO 10303-55 allow the use of entity data types specified in this part of ISO 10303 for representations of the operations. The relationships of the schema in this part of ISO 10303 to other schemas that define the integrated
39、resources of ISO 10303 are illustrated in Figure 1 using EXPRESS-G notation. EXPRESS-G is defined in ISO 10303-11:2004, Annex D. The schemas occurring in Figure 1 are components of ISO 10303 integrated resources, and they are specified in the following resource parts: measure_schema ISO 10303-41 geo
40、metry_schema ISO 10303-42 geometric_model_schema ISO 10303-42 sketch_schema ISO 10303-108 explicit_geometric_constraint_schema ISO 10303-108 procedural_sketch_ schema geometry_schema measure_schema geome tric_model_ schema sketch_schema explicit_geometric_ constraint_schemaFigure 1 Schema level diag
41、ram of relationships between the ISO 10303-112 schemas and other resource schemas INTERNATIONAL STANDARD ISO 10303-112:2006(E) ISO 2006 All rights reserved 1Industrial automation systems and integration Product data representation and exchange Part 112: Integrated application resource: Modelling com
42、mands for the exchange of procedurally represented 2D CAD models 1 Scope This part of ISO 10303 specifies the resource constructs for the representation of 2D modelling commands for use in the exchange of procedurally represented 2D CAD models. A procedural model is defined in terms of the sequence
43、of 2D modelling operations used to build it. The following are within the scope of this part of ISO 10303: entities representing creation commands for geometric elements such as lines, arcs, chamfers and fillets; entities representing transformation operations such as rotations and translations. The
44、 following are outside the scope of this part of ISO 10303: the identification of selected entities by interactive picking in a procedural model; the specification of sequences of modelling commands; query, deletion and modification commands (except in the case where the modification is a transforma
45、tion); dimensioning and constraining commands for 2D modelling. The first and second capabilities in the out of scope list above are provided by ISO 10303-55, and the fourth by ISO 10303-108. This part of ISO 10303 is designed to be used in conjunction with those parts of ISO 10303. 2 Normative refe
46、rences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For updated references, the latest edition of the referenced document (including any amendments) applies ISO/IEC 8824-1, Information technology Abst
47、ract Syntax Notation One (ASN.1) Part 1: Specification of basic notation. 2 ISO 2006 All rights reserved ISO 10303-1, Industrial automation systems and integration Product data representation and exchange Part 1: Overview and fundamental principles. ISO 10303-11:2004, Industrial automation systems a
48、nd integration Product data representation and exchange Part 11: Description methods: The EXPRESS language reference manual. ISO 10303-41, Industrial automation systems and integration Product data representation and exchange Part 41: Integrated generic resource: Fundamentals of product description
49、and support. ISO 10303-42, Industrial automation systems and integration Product data representation and exchange Part 42: Integrated generic resource: Geometric and topological representation. ISO 10303-55, Industrial automation systems and integration Product data representation and exchange Part 55: Integrated generic resource: Procedural and hybrid representation. ISO 10303-108, Industri
