1、BRITISH STANDARD Technical product documentation Organization and U naming oi: layers for CAD Part 1 : Overview and principles The European Standard EN IS0 13567-1:2002 has the status ofa British Standard ICs 01.110; 35.240.10 BS EN IS0 13567-1 12002 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMI
2、TTED BY COPYRIGHT LAW BS EN IS0 13567-1 12002 Amd. No. National foreword Date Comments This British Standard is the official English language version of EN IS0 13567-1:2002. It is identical with IS0 13567-1:1998. The UKparticipation in its preparation was entrusted by Technical Committee TDW/4, Engi
3、neering drawing, metrology, precision measurement, to Subcommittee TDW/4/-/1, General drawing principles, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for chang
4、e, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this committee can be obtained on request to its secretary. Cr oss-r e fer enc e s The British Standards which implement internationa
5、l or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all
6、 the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Consumer Products an
7、d Services Sector Policyand StrategyCommittee, page, pages to and a back cover. Summary of pages This document comprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii and iii, a blank The BSI copyright date displayed in this docum
8、ent indicates when the was published under the authority of the Standards Policy and Strategy Committee document was last issued. _. on 3 April 2002 O BSI 3 April 2002 ISBN O 580 39092 6 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 13567-1 January 2002 ICs 01.110; 35.240.10 English versi
9、on Technical product documentation - Organization and naming of layers for CAD - Part 1: Overview and principles (IS0 13567- 1 :I 998) Documentation technique de produits - Organisation et dnomination des couches de CAO - Partie 1: Vue densemble et principes (IS0 13567-1:1998) This European Standard
10、 was approved by CEN on 27 December 2001. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning suc
11、h national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language an
12、d notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Sw
13、itzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Re
14、f. No. EN IS0 13567-1:2002 E EN IS0 13567-12002 Foreword The text of the International Standard from Technical Committee ISO/TC 10 ”Technical drawings, product definition and related documentation” of the International Organization for Standardization (ISO) has been taken over as a European Standard
15、 by CMC. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2002, and conflicting national standards shall be withdrawn at the latest by July 2002. According to the CENKENELEC Internal Regulatio
16、ns, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and th
17、e United Kingdom. Endorsement notice The text of the International Standard IS0 13567-1:1998 has been approved by CEN as a European Standard without any modification. INTERNATIONAL STANDARD IS0 13567-1 First edition 1998-03-01 Technical product documentation - Organization and naming of layers for C
18、AD - Part 1: Overview and principles Documentation technique de produits - Organisation et dnomination des couches de CAO - Partie I: Vue densemble et principes Reference number IS0 13567-1:1998(E) EN IS0 13567-12002 Foreword IS0 (the International Organization for Standardization) is a worldwide fe
19、deration of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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 com
20、mittee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the
21、technical committees 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. International Standard IS0 13567-1 was prepared by Technical Committee ISO/TC 1 O, Technical drawings, product definit
22、ion and related documentation, Subcommittee SC 8, Construction documentation. IS0 13567 consists of the following parts, under the general title Technical product documentation - Organization and naming of layers for CAD: - Part I: Overview and principles - Part 2: Concepts, format and codes used in
23、 construction documentation - Part 3: under study Annex A of this part of IS0 13567 is for information only II EN IS0 13567-12002 Introduction IS0 13567 consists of three parts which deal with CAD layer organization and naming. IS0 13567-1 has a general application whereas IS0 13567-2 and IS0 13567-
24、3 (under study) are applicable to construction projects. The purpose of IS0 13567 is to establish a common international basis for organizing data in CAD systems that covers the structuring of data into layers. . 111 EN IS0 13567-12002 EN IS0 13567-12002 Technical product documentation - Organizatio
25、n and naming of layers for CAD - Part 1: Overview and principles 1 Scope This part of IS0 13567 establishes the general principles of layer structuring within CAD files. Layers are used to control visibility and to manage and communicate CAD file data. Layer names are used to represent this structur
26、e. The principles are applicable to all parties involved in preparing and using technical documentation on computer systems. Although these principles are primarily for users, CAD system developers are expected to provide software tools capable of implementing and supporting this part of IS0 13567.
27、An important use is also to structure data in component libraries produced by third parties. 2 Normative reference The following standard contain provisions which, through reference in this text, constitute provisions of this part of IS0 13567. At the time of publication, the edition indicated were
28、valid. All standards are subject to revision, and parties to agreements based on this part of IS0 13567 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and IS0 maintain registers of currently valid International Standa
29、rds. IS0 10303-201 :I 994, Industrial automation systems and integration - Product data representation and exchange - Part 20 I: Application protocol: Explicit draughting. 3 Definitions For the purposes of this part of IS0 13567, the definitions for CAD draughting given in IS0 10303-201 and the foll
30、owing definitions apply. 3.1 layer: Organizational attribute of entities in a CAD data file, used to separate data in order to manage and communicate those data and to control visibility on the computer screen and on plotted drawings. NOTE - In CAD systems, synonyms for “layer“ are used, for example
31、 “level“. 3.2 CAD model: Structured CAD data fiie(s) organized according to the physical parts of the objects represented, for example a building or a mechanical device. NOTE - Models can be two-dimensional or three-dimensional, and can include graphical as well as non-graphical data attached to the
32、 objects. 1 EN IS0 13567-12002 3.3 CAD drawing: Selected parts of a CAD model as presented on screen or on paper. NOTE -Visibility on the drawing can be controlled by views and layers. The drawing can contain additional graphics, such as border-lines, title-block and legends. CAD drawings can also b
33、e produced independently without an underlying CAD model (a drawing-oriented approach as opposed to the model-oriented approach). 3.4 plot: Graphic image created by a numerically controlled draughting machine and presented on draughting media. 3.5 reference file: CAD file that is displayed and print
34、ed together with information from another file which can be stored and updated independently of the first file. NOTE - A typical use is a CAD drawing consisting of a file for the sheet and using the CAD model as a reference file. The view of the model in each drawing where it is referenced can thus
35、be automatically updated. 3.6 wildcarding: Using a special character to match any character, or group of characters, in a string comparison. 4 General When data is transferred between different systems, companies and countries, their structure needs to be understood in order to define responsibiliti
36、es for parts of that data, to select from them to suit the needs of different specialists and to manage the data. Layering is a commonly used technique to achieve such an organization of CAD data. Each graphical primitive, or collections of such primitives, in a CAD model is assigned to a layer. Lay
37、ers are given unique names, from simple numbers to relatively long mnemonic codes, and can be selectively viewed or plotted. A more sophisticated variation additionally allows the information in a CAD model to be split into different files which are combined with each other in addition to the use of
38、 layering, .e. reference file techniques. Data classification techniques based on distributed databases, object-oriented programming, product modelling etc., will be increasingly used in the future. For all these techniques the same fundamental principles for organizing information apply. 5 Fundamen
39、tal principles 5.1 Organizational convention The principle of organizing layers is based on the clear separation of the logical organization of information (conceptual level) from the way this information is coded in particular CAD implementations (internal level). This is a fundamental principle of
40、 database design. The primary focus is to establish clear organization of information which fulfils the functional requirements of the information users. The possibilities for coding this information using current technology (.e. restricted number of layers or characters for layer names in some syst
41、ems) has not been allowed to dominate the structure of IS0 13567. 5.2 Layer name format convention A second basic principle is based on the many ways of classifying information independently of each other so that they can be applied in combinations, often referred to as faceted classification. To ac
42、hieve this, different classifiers are placed in different parts of the layer name. Among the benefits of this approach is that it makes it easy to split up the information in a CAD file according to the different needs of end users of the information. 5.3 Code convention A third principle is the use
43、 of existing international or national classification whenever appropriate. IS0 13567 does not contain any reserved codes where such tables exist. 2 EN IS0 13567-12002 Annex A (informative) Bi b I iog rap h y I IS0 5455:1979, Technical drawings - Scales. 2 ISO/TR 10127:1990, Computer-Aided Design (C
44、AD) Technique - Use of computers for the preparation of construction drawings. 3 IS0 10209-1 :1992, Technical product documentation - Vocabulary - Part I: Terms relating to technical drawings: general and types of drawings. 4 IS0 1 1442-1 : 1993, Technical product documentation - Handling of compute
45、r-based technical information - Part I: Security requirements. 5 IS0 1 1442-2: 1993, Technical product documentation - Handling of computer-based technical information - Part 2: Original documentation. 6 IS0 1 1442:-31993, Technical product documentation - Handling of computer-based technical inform
46、ation - Part 3: Phases in the product design process. 7 IS0 1 1442-4: 1993, Technical product documentation - Handling of computer-based technical information - Part 4: Document management and retrieval systems. 8 IS0 13567-2: 1998, Technical product documentation - Organization and naming of layers
47、 for CAD - Part 2: Concepts, format and codes used in construction documentation. 3 BS EN IS0 13 567- 1 12002 BSI 389 Chiswick High Road Lon don w4 4AL BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internat
48、ional level. It is incorporated by Royal Charter. Re vi si ons British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. W
49、e would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +
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