1、I N T E R N AT I 0 N A L S TA N D A R D ISO/IEC 861 3-8 Second edition 1994-1 1-07 (Reaffirmed 2004) information technology - Open Document Architecture (ODA) and Interchange Format: Geometric graphics content architectures Technologies de /information - Architecture des documents ouverts (ODAI et f
2、ormat dechange: Architecture des contenus des caracteres graphiques geometriques National Standard of Canada CAN/CSA -ISO/IE C-8613-8-95 International Standard ISO/IEC 8613-8 : 1994 has been adopted, without modification, as CAN/CSA-ISO/IEC-8613-8-95, which has been approved as a National Standard o
3、f Canada by the Standards May 1995 Council of Canada. Reference number ISO/IEC 861 3-811 994(E) ISO/IEC 8613-8: 1994(E) CONTENTS Page INTRODUCTION . 1 2 6 7 8 Scope Normative references . 2.1 Identical Recommendations I International Standards 2.2 Paired Recommendations I International Standards equ
4、ivalent in technical content 2.3 Additional references Definitions Abbreviations . Conventions 5.1 CGM . 5.2 Individual CGM elements . 5.3 CGM concepts 5.4 CGM defaults 5.5 Parameter names . 5.6 Width and height . General principles 6.1 Content architecture classes 6.2 Content 6.3 Presentation attri
5、butes . 6.4 Coding of content information 6.5 Layout and imaging of the content . 6.6 Colour spaces applicable to geometric graphics content architecture . Positioning 7.1 Introduction . 7.2 Measurement units and directions . 7.3 The relationship between the region of interest and the basic layout o
6、bject . Definition of geometric graphics presentation attributes . 8.1 Shared presentation attributes . Region of interest specification . 8.2 Logical presentation attributes 8.1.1 Attributes specifying CGM defaults . 8.1-2 8.1.3 Picture orientation 8.2.1 Picture dimensions Content architecture cIas
7、s attributes 8.3.1 Content architecture class . Interaction with document architecture attributes . 8.3 8.4 0 ISO/IEC 1994 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 phot
8、ocopying and microfilm. without permission in writing from the publisher . ISO/IEC Copyright Office Case postale 56 CH-1211 Genkve 20 Switzerland 5 1 2 2 2 2 2 2 3 3 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 6 8 8 8 18 18 19 19 20 20 20 Printed in Switzerland 11 0 ISOrnC ISO/IEC 8613-8: 1994(E) Page 9 10 11 Geo
9、metric graphics content portion attributes . 9.1 Common coding attributes 9.2 Content information 9.3 Other coding attributes Formal definitions of geometric graphics content architecture dependent data types 10.1 Introduction . 10.2 10.3 10.4 Representation of geometric graphics presentation attrib
10、utes. Representation of coding attributes . Representation of non-basic features and non-standard defaults Content layout process . 1 1.1 Introduction . 11.1.1 Purpose 1 1.1.2 Available area . 11.1.3 Presentation attributes . 11.1.4 11.1.5 Layout of the content Geometric graphics content architectur
11、e classes . Content layout process for formatted processable content architecture class . 1 1.2 12 Content imaging process 12.1 Introduction . 12.2 Content imaging process for formatted processable form content architecture class . 12.2.1 12.2.2 Imaging Initialization of the imaging process . 13 Def
12、inition of geometric graphics content architecture classes . Annex A . Summary of ASN . 1 object identifiers Annex B . Basic differences between character primitives in the geometric graphics and the content of a basic component structured according to the character content architectures defined in
13、ITU-T Rec . T.416 I ISO/IEC 8613-6 . Annex C . SGML representation of geometric graphics content-specific attributes for ODL C.l Introduction . c . 2 c.3 c . 4 c.5 Names and public identifiers . Representation of attribute values . C.3.1 Constructed parameters . C.3.2 String parameters C.3.3 Keyword
14、 parameters . C.3.4 Integer parameters . C.3.5 Real parameters . C.3.6 Aspect source flags (ASF) parameters Presentation attributes . C.4.1 Shared presentation attributes (format attribute-directives) (24.2 Logical presentation attributes (format directives) . Coding attributes . 20 20 20 20 21 21 2
15、1 25 25 26 26 26 26 26 26 26 27 32 32 32 32 32 33 34 35 36 36 36 36 36 37 37 37 38 38 38 38 39 39 40 Index . 111 ISO/IEC 8613-83 1994(E) 0 ISOIIEC Foreword IS0 (the International Organization for Standardization) and IEC (the Inter- national Electrotechnical Commission) form the specialized system f
16、or worldwide standardization. National bodies that are members of IS0 or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. IS0 and IEC technical committees collab
17、orate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the work. In the field of information technology, IS0 and IEC have established a joint technical committee, ISO/IEC JTC I. Draft International Stan
18、dards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. International Standard ISO/IEC 8613-8 was prepared by Joint Technical Committee ISO/IEC JTC
19、1, Information technology, Subcommittee SC 18, Document processing and related communication, in collaboration with ITW-T. The identical text is published as ITU-T Recommendation T 4 18. This second edition cancels and replaces the first edition (IS0 8613-8:1989), which has been technically revised.
20、 ISOflEC 8613 consists of the following parts, under the general title Information technology - Open Document Architecture (ODA) and interchange format: - - Part 2: Document structures - - Part 4: Document profile - - - - - - Part 10: Formal specifications - - - Part 13: Spreadsheet - Part 1: Introd
21、uction and general principles Part 3: Abstract intelface for the manipulation of ODA documents Part 5: Open document interchange format Part 6: Character content architectures Part 7: Raster graphics content architectures Part 8: Geometric graphics content architectures Part 9: Audio content archite
22、ctures Part 11: Tubular structures and tabular layout Part 12: Identification of documenr fragments Part 14: Temporal relationships and non-linear structures iv 0 1somc ISOAEC 8613-8: 1994(E) INTRODUCTION This ITU-T Recommendation I International Standard was prepared as a joint publication by ITU-T
23、 Study Group 8 and ISOAEC Joint Technical Committee 1. At present, the ITU-T Recommendation T.410-Series i ISOAEC 8613 consists of: - Introduction and general principles; - Document structures; - Document profile; - Open document interchange formats; - Character content architectures; - Raster graph
24、ics content architectures; - Geometric graphics content architectures; - Formal Specification of the Open Document Architecture (FODA). (The formal specification is applicable to ISO/IEC 8613 only). Further Recommendations I International Standards may be added to this series of ITU-T Recommendation
25、s I International Standards. Development of this series of ITU-T Recornmendations I International Standards was originally in parallel with the ECMA- 10 1 standard: Open Document Architecture. This series of ITU-T Recommendations I International Standards is a new edition of the CCITT T.410-Series o
26、f Recommendations (1988) and IS0 8613 (1989). Significant technical changes are the inclusion of the following amendments as agreed by ITU-T and ISOAEC: - Alternative representation; - - Colour; - Conformance Testing Annex; - - Security; - Streams; - Styles; - Tiled raster graphics. Annex on use of
27、MHSMOTIS; Document Application Profile, Proforma and Notation; In addition, a number of technical corrigenda have been applied to this ITU-T Recommendation I International Standard. This ITU-T Recornmendation I International Standard contains three annexes: - - Annex A summarises the ASN. 1 object i
28、dentifiers (non-integral); Annex B describes the differences between character primitives in the geometric graphics and the content structured according to the character content architectures defined in ITU-T Rec. T.416 I ISO/IEC 8613-6 (non-integral); Annex C describes the SGML representation of ge
29、ometric graphics content-specific attributes for ODL (integral). (The use of Annex C is applicable to ISO/IEC 6613 only.) - V ISO/IEC 8613-8 : 1994 (E) INTERNATIONAL STANDARD ITU-T RECOMMENDATION INFORMATION TECHNOLOGY - OPEN DOCUMENT ARCHITECTURE (ODA) AND INTERCHANGE FORMAT: GEOMETRIC GRAPHICS CON
30、TENT ARCHITECTURES 1 Scope The purpose of the ITU-T Rec. T.410-Series I ISO/IEC 8613 is to facilitate the interchange of documents. In the context of these Recornmendations I International Standards, documents are to be items such as memoranda, letters, invoices, forms and reports, which may include
31、 pictures and tabular material. The content elements used within the documents may include graphic characters, raster graphics elements and geometric graphics elements, all potentially within one document. NOTE - These Recommendations I International Standards are designed to allow for extensions, i
32、ncluding hypermedia features, spreadsheets and additional types of content such as audio and video. In addition to the content types defined in these Recommendations I International Standards, ODA also provides for arbitrary content types to be included in documents. These Recommendations I Internat
33、ional Standards apply to the interchange of documents by means of data communication or the exchange of storage media. These Recommendations I International Standards provide for the interchange of documents for either or both of the following purposes: - to allow presentation as intended by the ori
34、ginator; - to allow processing such as editing and reformatting. The composition of a document in interchange can take several forms: - formatted form, allowing presentation of the document; - processable form, allowing processing of the document; - formatted processable form, allowing both presenta
35、tion and processing. These Recommendations I International Standards also provide for the interchange of ODA information structures used for the processing of interchanged documents. This ITU-T Recommendation I International Standard: - defines a geometric graphics content architecture that can be u
36、sed in conjunction with the document architecture defined in ITU-T Rec. T.4 12 I ISO/IEC 86 13-2; - defines an interface which allows the use of content structured according to ISO/IEC 8632 within documents structured according to ITU-T Rec. T.4 12 I ISOAEC 861 3-2; - defines those aspects of positi
37、oning and imaging applicable to the presentation of this geometric graphics content architecture in a basic layout object; - - defines the presentation attributes applicable to this geometric graphics content architecture; describes a content layout process, which together with the document layout p
38、rocess described in ITU-T Rec. T.412 I ISOAEC 8613-2, describes the layout of geometric graphics content in basic layout objects and determines the dimensions of these basic layout objects. ITU-T Rec. T.418 (1993 E) 1 ISO/IEC 8613-8 : 1994 (E) 2 Normative references The following ITU-T/CCITI Recomme
39、ndations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation I International Standard. At the time of publication, the editions indicated were valid. All Recommendations I International Standards are subject to revision,
40、and parties to agreements based on this Recornmendation I International Standard are encouraged to investigate the possibility of applying the most recent editions of the Recommendations and International Standards listed below. Members of IEC and IS0 maintain registers of currently valid Internatio
41、nal Standards. The ITU-T Secretariat maintains a list of currently valid ITU-T/CCITT Recommendations. Identical Recommendations I International Standards ITU-T Recommendation T.411 ( 1993) I ISOlIEC 86 13- 1 : 1994, Information technology - Open Document Architecture (ODA) and Interchange Format: In
42、troduction and general principles. ITU-T Recommendation T.412 (1993) I ISO/IEC 8613-2: 1994, Information technology - Open Document Architecture (ODA) and interchange Format: Document structures. ITU-T Recommendation T.414 (1993) I ISO/IEC 86 13-4: 1994, Informution technology - Open Document Archit
43、ecture (ODA) and Interchange Format: Document profile. ITU-T Recommendation T.415 (1993) I ISOAEC 8613-5: 1994, Information technology - Open Document Architecture (ODA) and Interchange Format: Upen Document Interchange Format, ITU-T Recommendation T.416 (1993) I ISO/IEC 86 13-6: 1994, Information t
44、echnology - Open Document Architecture (ODA) and Interchange Format: Character content architectures. ITU-T Recornmendation T.417 (1993) I ISO/IEC 86 13-7: 1994, Informtion technozogy - Open Document Architecture (ODA) and Interchange Format: Raster graphics content architectures. Paired Recommendat
45、ions I International Standards equivalent in technical content CCITT Recommendation X.208 (1988), Specification ofAbstract Syntax Notation One (ASN. I). ISO/IEC 8824: 1990, Information technology - Open Systems Interconnection - Specification of Abstract Syntax Notation One (ASN. 1). Additional refe
46、rences ISOAEC 646: 199 1, Information technology - IS0 7-bit coded character set for information interchange. ISOAEC 8632-1: 1992, Informution technology - Computer graphics - Metafile for the storage and transfer of picture description informtion - Part I : Functional specification. ISOAEC 8632-3:
47、1992, Znfomtion technology - Computer graphics - Metafile for the storage and transfer of picture description information - Part 3: Binary encoding. IS0 8879: 1986, Information processing - Text and office systems - Standard Generalized Markup Language (SGML) . Definitions For the purposes of this R
48、ecommendation I International Standard, the definitions given in ITU-T Rec. T.411 I ISOffEC 8613-1, ISO/IEC 8632-1 and IS0 8879 apply. 4 Abbreviations For the purposes of this Recommendation I International Standard the abbreviations given in ITU-T Rec. T.411 I ISO/IEC 8613-1 apply. 2 ITU-T Rec. T.4
49、18 (1993 E) ISO/IEC 8613-8 1994 (E) For the purposes of this Recommendation I International Standard the following additional abbreviations apply. ASF Aspect source flag CCA Character content architecture GGCA Geometric graphics content architecture NX NY VDC Virtual Device Coordinate(s) Number of columns in pattern array Number of rows in pattern array 5 Conventions For the purposes of this Recommendation 1 International Standard the conventions given in ITU-T Rec. T.411 I ISO/IEC 8613-1 apply. The following ad
