ISO/IEC INTERNATIONAL STANDARD 9636-3 First edition 1991-12-15 Information technology -- Computer graphics Interfacing techniques for dialogues with graphical devices (CGl) Functional specification Part 3: Output Technologies de I'information -- Infographie -- Interfaces pour I'infographie --- Specifications fonctionnelles Partie 3: Sortie Reference number 1SO/EC9636-3:1991(E) Copyright Intermational Organization for Standardization rovided by IHS Not for Resale ISO/IEC 9636-3 : 1991 (E) Contents Page Foreword vi Introduction vili 1 Scope 2 Normativereferences 2 3 Concepts 3 3.1 Introduction 3.2 General output concepts 3 3.2.1 Types of graphic primitive functions 3.2.2 Attributes and controls... 3.2.3 Output states... 3.3 Individual and bundled attribute values 3.3.1 Introduction. 3.3.2 Modes of attribute specification and selection. 3.4 Colour 3.4.1 Direct and indexed modes 6 3.4.2 Background colour. 3.5 Graphic objects 9 3.5.1 Compound objects 9 3.5.2 Global and local attributes 9 3.5.3 Detail of graphic object formation 3.6 Clipping associated with graphic objects. 10 3.6.1 Renderingpipelines forclipping 11 3.7 Line primitives 13 3.7.1 Line functions 13 3.7.2 Line attributes 13 3.7.3 Line geometry 14 3.7.4 Line clipping ... 14 3.7.5 Allowed latitude. 15 3.8 Marker primitive 15 3.8.1 Markerfunction 15 3.8.2 Marker attributes 15 3.8.3 Marker geometry 3.8.4 Marker clipping.. 16 3.9 Text primitives 17 3.9.1 Text functions .... 17 3.9.2 Usage of text functions (compound text) 17 3.9.3 Text attributes .. 17 3.9.4 Text geometry 19 3.9.5 Text clipping . 27 3.9.6 Text fonts and character 28 3.9.7 Errors in TEXT OPEN state. 28 3.9.8 Allowed latitude 28 3.10 Fill primitives . 29 3.10.1 Fill functions 29 3.10.2 Fill attributes 29 3.10.3 Fill geometry 31 3.10.4 Fill clipping 32 3.10.5 Closed figures 33 3.10.6 Allowed latitude 37 3.11 Image primitive 37 3.11.1 Image function 38 ISO/IEC 1991 All rights reserved.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/IECCopyrightOffice·Casepostale56·CH-1211Geneve20·Switzerland Printed in Switzerland ii Copyright Intemational Organization for Standardization Provided by IHS under license with ISO No reproduction or networking permitted without lic Not for Resale ISO/IEC 9636-3 : 1991 (E) 3.11.5 Allowed latitude 38 3.12 Generalized Drawing Primitives 39 3.12.1 GDPfunction 39 3.13 Inquiry 39 3.13.1 State lists and description tables 39 3.14 Retrieval 39 3.14.1 Retrieval of textexten 39 4 Interactionswith otherparts of ISO/IEC9636...... 41 4.1 Interactions with all other parts of ISO/IEC 9636 41 4.1.1 Character set and font selection. 41 4.2 Interactions with ISO/IEC 9636-2 (Control) 41 4.2.1 EffectofINITIALIZE. 41 4.2.2 EffectofVDCExtentandVDCType. 41 4.3 Interactions with ISO/IEC 9636-4 (Segments)... 42 4.3.1 CLIP RECTANGLE, CLIP INDICATOR, and COPY SEGMENT. 42 4.3.2 LINEWIDTHandEDGEWIDTH 42 4.3.3 MARKER SIZE 42 4.3.4 PICKIDENTIFIER 42 4.3.5 Dynamic modification .. 42 4.3.6 Segment open state 42 4.4 Interactions with ISO/IEC 9636-5 (Input). 43 4.5 Interactions with ISO/IEC 9636-6 (Raster) 43 4.5.1 State related restrictions 43 4.5.2 Interior style BITMAP. 43 4.5.3 Drawing modes. 43 Abstract specification of functions 44 5.1 Introduction. 44 5.1.1 Data types employed 44 5.2 Graphic primitive functions. 44 5.2.1 POLYLINE 44 5.2.2 DISJOINTPOLYLINE 45 5.2.3 CIRCULARARC3POINT 45 5.2.4 CIRCULARARCCENTRE 45 5.2.5 CIRCULAR ARC CENTRE REVERSED 46 5.2.6 ELLIPTICALARC 47 5.2.7 CONNECTING EDGE 5.2.8 POLYMARKER 48 5.2.9 48 5.2.10 RESTRICTEDTEXT 49 5.2.11 APPENDTEXT 5.2.12 POLYGON 50 5.2.13 POLYGON SET 51 5.2.14 RECTANGLE 51 5.2.15 52 5.2.16 CIRCULARARC3POINTCLOSE 52 5.2.17 CIRCULAR ARC CENTRE CLOSE 53 5.2.18 ELLIPSE 53 5.2.19 ELLIPTICAL ARC CLOSE. 54 5.2.20 CELLARRAY 54 5.2.21 GENERALIZEDDRAWINGPRIMITIVE(GDP) 55 5.3 56 5.3.1 LINEBUNDLEINDEX 56 5.3.2