1、 Reference number ISO/TS 19127:2005(E) ISO 2005TECHNICAL SPECIFICATION ISO/TS 19127 First edition 2005-06-15 Geographic information Geodetic codes and parameters Information gographique Codes et paramtres godsiques ISO/TS 19127:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In
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6、211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2005 All rights reservedISO/TS 19127:2005(E) ISO 2005 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Conformance. 1 3 Normative reference
7、s . 1 4 Terms and definitions. 1 5 Registers of geodetic codes and parameters 1 6 Management of a register of geodetic codes and parameters 2 7 Content of a register of geodetic codes and parameters. 3 Annex A (normative) Abstract test suite 4 Annex B (normative) Register of geodetic codes and param
8、eters. 5 Annex C (informative) Best practices for geodetic codes and parameters . 12 Bibliography . 20 ISO/TS 19127:2005(E) iv ISO 2005 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The
9、 work of preparing International Standards is normally carried out through ISO 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 committee. International organizations, governmental and non-gove
10、rnmental, 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/IEC Directives, Part 2. T
11、he 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 vot
12、e. In other circumstances, particularly when there is an urgent market requirement for such documents, a technical committee may decide to publish other types of normative document: an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an ISO working
13、group and is accepted for publication if it is approved by more than 50 % of the members of the parent committee casting a vote; an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical committee and is accepted for publication if it is approved by 2/3 of th
14、e members of the committee casting a vote. An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is confirmed, it is reviewed again after a furt
15、her three years, at which time it must either be transformed into an International Standard or be withdrawn. 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
16、rights. ISO/TS 19127 was prepared by Technical Committee ISO/TC 211, Geographic information/Geomatics. ISO/TS 19127:2005(E) ISO 2005 All rights reserved v Introduction ISO 19135 specifies procedures for the registration of items of geographic information. ISO/IEC JTC 1 defines registration as the as
17、signment of an unambiguous name to an object in a way that makes the object available to interested parties. ISO 19111 describes elements necessary to define fully coordinate reference systems and coordinate systems so that coordinates for positions on or near the Earths surface can be unambiguously
18、 referenced. ISO 19111 also describes elements to define coordinate operations that change coordinate values from one coordinate reference system to coordinate values based on another coordinate reference system. Currently, many lists of geodetic codes and parameters exist in national standards, sta
19、ndards of liaison organizations, and industrial specifications and software products. Little guidance is provided on applicability and appropriate use of these geodetic codes and parameters. Applicability and appropriate use are of great concern, as geographic information systems become more widely
20、available to non-experts in cartography and geodesy. This Technical Specification describes how the procedures specified in ISO 19135 are to be applied to registers of elements applicable to spatial referencing by coordinates in compliance with ISO 19111. Some elements that are optional in ISO 19111
21、 become mandatory in this Technical Specification to provide guidance on applicability and appropriate use. TECHNICAL SPECIFICATION ISO/TS 19127:2005(E) ISO 2005 All rights reserved 1 Geographic information Geodetic codes and parameters 1 Scope This Technical Specification defines rules for the popu
22、lation and maintenance of registers of geodetic codes and parameters and identifies the data elements, in compliance with ISO 19111 and ISO 19135, required within these registers. Recommendations for the use of the registers, the legal aspects, the applicability to historic data, the completeness of
23、 the registers, and a mechanism for maintenance are specified by the registers themselves. 2 Conformance To conform to this Technical Specification, a register of items of geographic information shall satisfy all of the conditions specified in the Abstract test suite (Annex A). 3 Normative reference
24、s The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 19111:2003, Geographic information Spatial
25、referencing by coordinates ISO 19112, Geographic information Spatial referencing by geographic identifiers ISO 19135: 1) , Geographic information Procedures for item registration 4 Terms and definitions For the purposes of this document, the terms, definitions, symbols, notations and abbreviated ter
26、ms given in ISO 19111 and ISO 19135 apply. 5 Registers of geodetic codes and parameters The ISO geodetic registry network is defined as: a) The ISO register of geodetic registers. This principal register holds a set of items that describe the subregisters described in b) and c); b) The ISO register
27、of geodetic codes and parameters. This subregister shall contain coordinate reference system data and coordinate transformation data that conform to ISO 19111 and are international in 1) To be published. ISO/TS 19127:2005(E) 2 ISO 2005 All rights reservedgeographic extent of application, widely used
28、, and well defined. See Tables B.1, B.2 and B.3 for requirements for entries in the ISO register; c) External subregisters of geodetic codes and parameters. These subregisters shall contain coordinate reference system data and coordinate transformation data that conform to ISO 19111. See Tables B.1,
29、 B.2 and B.3 for requirements for entries in the external subregisters of geodetic codes and parameters. Figure 1 illustrates the ISO geodetic registry network. Key 1 ISO register of geodetic registers 2 ISO register of geodetic codes and parameters 3 1n ISO-approved external registers conforming to
30、 ISO 19111 and ISO 19135 Figure 1 The ISO geodetic registry network 6 Management of a register of geodetic codes and parameters Rules for managing a register of geographical information items, including the submission of information, are found in ISO 19135. There are additional rules for managing re
31、gisters of geodetic codes and parameters. The minimum level of information that the register manager shall accept from a submitting organization is complete data for a coordinate reference system or coordinate transformation that conforms to requirements as specified in Clause 7 of this Technical Sp
32、ecification. The register manager shall also accept data for compound coordinate reference systems, single coordinate operations, and concatenated coordinate operations that conform to requirements of ISO 19111 and Clause 7 of this Technical Specification. Higher-level records for coordinate referen
33、ce system and coordinate transformation data are dependent on records for entities such as datums, coordinate systems, and coordinate operation parameters. The register manager shall assign individual registration identifiers for records for entities such as datums, coordinate systems, and coordinat
34、e operation parameters so that multiple higher-level records can point to them. When a record for an entity such as a datum, coordinate system, or coordinate operation parameter is modified, dependent records also shall be modified, according to rules in ISO 19135. To promote interoperability among
35、subregisters within the ISO geodetic registry network, register managers are encouraged to adopt the “best practices” in Annex C. ISO/TS 19127:2005(E) ISO 2005 All rights reserved 3 7 Content of a register of geodetic codes and parameters Data included in a register of geodetic codes and parameters
36、shall conform, at a minimum, to requirements of ISO 19111. Additional rules for content of a register of geodetic codes and parameters are as follows: a) Information on scope of coordinate reference system and coordinate operation and their elements in accordance with ISO 19111 is mandatory for acce
37、ptance in the register. Some coordinate reference systems have a legal status in their valid area; this status shall be included in the scope. b) Information on valid area is mandatory for acceptance in the register. c) If the submitting organization uses geographic identifiers (as documented in ISO
38、 19112) to describe valid area, it shall provide a citation to the source. d) The geographic area where use of the coordinate reference system is accepted shall be logically consistent with the geographic area where use of the datum is accepted and, if applicable, the geographic area where use of th
39、e map projection is accepted. e) Description of valid area for a coordinate operation shall be logically consistent with the valid areas for the source coordinate reference system and the target coordinate reference system. f) Information on datum type is mandatory for registration validation purpos
40、es. Requirements for content of a subregister within the ISO geodetic registry network, as required by ISO 19111 and as specified in this clause, are documented in Tables B.1, B.2 and B.3. A mechanism for maintenance is discussed in ISO 19135. ISO/TS 19127:2005(E) 4 ISO 2005 All rights reservedAnnex
41、 A (normative) Abstract test suite A.1 Management procedures a) Test Purpose: Verify that the register is managed according to the rules specified in this Technical Specification. b) Test Method: Check the procedures described in the information distributed by the registration manager. c) Reference:
42、 Clause 6 and ISO 19135, Clause 6. d) Test Type: Capability. A.2 Register content a) Test Purpose: Verify that the register contains the minimum specified content. b) Test Method: Inspect entries in the register to ensure that they include all elements of information required by ISO 19135 and this T
43、echnical Specification. c) Reference: Clause 7 and ISO 19135, Clause 8. d) Test Type: Capability. A.3 Publication of register contents a) Test Purpose: Verify that the contents of the register are publicly available. b) Test Method: Check the information distributed by the registration manager. Visi
44、t the web site and inspect the information made available. c) Reference: ISO 19135, 6.4. d) Test Type: Capability. ISO/TS 19127:2005(E) ISO 2005 All rights reserved 5 Annex B (normative) Register of geodetic codes and parameters This annex contains Tables B.1, B.2 and B.3, which specify information
45、for elements to be included in a subregister within the ISO geodetic registry network. Many of these elements are taken from ISO 19111 and ISO 19135, but this annex contains additional elements and guidance for completing those elements beyond those provided in ISO 19111. Table B.1 Requirements for
46、describing an entry for a coordinate reference system E N h r r X Y Z i j k i j k r r H Datum type: Geodetic Geodetic Geodetic Engineering or vertical Coordinate system type: Projected Geodetic or spherical polar Cartesian Cartesian or spherical polar or gravity- related heightElement name Comments
47、Coordinate reference system identifier M aM M M See ISO 19111 for requirements to describe a source citation. Information for source citation as part of the element identifier is mandatory for acceptance into the register. Coordinate reference system alias O O O O Coordinate reference system valid a
48、rea M M M M If the submitting organization uses geographic identifiers (as documented in ISO 19112) to describe valid area, it shall provide a citation for the geographic identifiers. Coordinate reference system scope M M M M ISO/TS 19127:2005(E) 6 ISO 2005 All rights reservedTable B.1 (continued) E
49、 N h r r X Y Z i j k i j k r r H Datum type: Geodetic Geodetic Geodetic Engineering or vertical Coordinate system type: Projected Geodetic or spherical polar Cartesian Cartesian or spherical polar or gravity- related heightElement name Comments Datum identifier M M M M See ISO 19111 for requirements to describe a source citation. Information for source citation as part of the element identifier is mandatory for acceptance into the register. Datum alias O O O O Datum type M M M M
