ISO INTERNATIONAL STANDARD 19125-1 First edition 2004-08-01 Geographic information Simple feature access Part 1: Common architecture Information géographique - Acces aux entites simples - Partie 1: Architecture commune Reference number ISO 19125-1:2004(E) @ ISO 2004 ISO 19125-1:2004(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's 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 responsibility of not infringing Adobe's 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 ? ISO2004 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 either isO at the address below or IsO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO2004-Allrights reserved ISO 19125-1:2004(E) Contents Page Foreword Introductior 1 Scope 2 Conformance 3 Normative references 4 Terms and definitions. 5 Abbreviatedterms 6 6.1 Geometry object model... 5 6.2 Well-known Text Representation for Geometry.. 21 6.3 Well-known Binary Representation for Geometry 22 6.4 Well-known Text Representation of Spatial Reference Systems.. Annex A (informative) The correspondence of concepts of the common architecture with concepts of the geometry model of Iso 19107.. ..28 Annex B (informative) Supported spatial reference data ..36 Bibliography 42 ation'ghtsreserved ii ISO 19125-1:2004(E) Foreword 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 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 electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. base document supplied by the Open Gis Consortium, Inc. Iso 19125 consists of the following parts, under the general title Geographic information — Simple feature access Part 1: Common architecture Part 2: SQL option APart 3: COM/OLEoption is underpreparation. @ IsO 2004 - All rights reserved ISO 19125-1:2004(E) Introduction geometry object model is Distributed Computing Platform neutral and uses UML notation. The base Geometry class has subclasses for Point, Curve, Surface and GeometryCollection. Each geometric object is associated with a Spatial Reference System, which describes the coordinate space in which the geometric object is defined. MultiLineString and MultiPolygon for modelling geometries corresponding to collections of Points, LineStrings generalize the collection interfaces to handle Curves and Surfaces. The attributes, methods and assertions for each Geometry class are described in Fig