INTERNATIONAL ISO/IEC STANDARD 9592-3 Second edition 1997-11-15 Information technology --- Computer graphics and image processing Programmer's Hierarchical Interactive Graphics System (PHIGS) - Part 3: Specification for clear-text encoding of archive file Technologies de I'information -- Infographie et traitement de I'image Interface de programmation du systeme graphique hierarchiseé (PHIGS) Partie 3: Spécification du codage mode texte en clair du fichier d'archive IEC Reference number ISO/IEC 9592-3:1997(E) Copyright Intermational Organization for Standardization No rep Not for Resale ISO/IEC9592-3:1997(E) Contents 1 Scope....... 2 Normative references. 3 Definitions... 4 Clear text encoding format 4.1 Notational conventions 4.2 Archive file format.... 4.2.1 Introduction ... 4.2.2 Character repertoire . .6 4.2.3.1 Element separators.. 4.2.3.2 Parameter separator.. 4.2.3.3 Comments in the archive file 4.2.4 Encoding of parameter types . 4.2.4.1 Integer-bound types 4.2.4.2 Real-bound types 4..3 String-bound types... .9 4.2.4.4 Enumerated types 4.2.4.5 Derived types.. .9 4.2.5 Forming archive file element names......... 4.2.5.1 Terms deleted 4.2.5.2 Words added..... 4.2.5.3 Words used unabbreviated 4.4 Abbreviations..... .16 4.2.5.5 Abbreviating compound types. 4.2.5.6 Sentinel character sequence. .18 4.7 The derived archive file element names.... 4.3 Encoding the PHIGS archive file elements 4.3.1Encoding delimiter elements ... .22 4.3.2 Encoding archive file descriptor elements.. .22 4.3.3 The structure element production... .22 4.3.4Encodingoutputprimitiveelements.... 4.3.5 Encoding attribute elements . ..32 4.3.6 Encoding modelling transformation elements .... 4.3.7 Encoding miscellaneous elements. 4.3.8 Encoding external elements . 4.4 Clear-text encoding conformance... ISO/IEC1997 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 photocopying and microfilm. without permission in writing from the publisher. ISO/IEC Copyright Office · Case postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland No reproduc n or networking permitted without license from IHS Not for Resale CISO/IEC ISO/IEC 9592-3:1997(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO 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. ISO and IEC technical committees collaborate in fields of mutual interest Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee circulated to national bodies for voting. Publication as an International Standard reguires approval by at least 75 % of the national bodies casting a vote. International Standard ISO/IEC 9592-3 was prepared by Joint Technical Committee ISO/IEC JTC 1. Information technology, Subcommittee SC 24, Computer graphics and image processing This second edition cancels and replaces the first edition (ISO/IEC 9592-3:1989), which has been technically revised. It also incorporates Amendment 1:1992. ISO/IEC 9592 consists of the following parts, under the general title Information technology - Computer graphics cnd image processing -Programmer's Hierarchical Interactive Graphics System (PHIGS): PartI:Functionaldescription Part 2: Archive file format Part 3: Specification for clear-text encoding of archive file Annex A of this part of ISO/IEC 9592 is for information only ili Copyright Intenatinal Organization for Standardization