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GB/T 24355-2023: Geographic information - Portrayal
Status: Valid GB/T 24355: Evolution and historical versions
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Geographic information - Portrayal
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PDF similar to GB/T 24355-2023
Standard similar to GB/T 24355-2023 GB/T 36299 GB/T 14950 GB 12319 GB/T 19996 Basic data | Standard ID | GB/T 24355-2023 (GB/T24355-2023) | | Description (Translated English) | Geographic information - Portrayal | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A79 | | Classification of International Standard | 07.040 | | Word Count Estimation | 90,928 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-05-23 | | Older Standard (superseded by this standard) | GB/T 24355-2009 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 24355-2023: Geographic information - Portrayal---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 07:040
CCSA79
National Standards of People's Republic of China
Replacing GB/T 24355-2009
Graphical representation of geographic information
(ISO 19117:2012, IDT)
Released on 2023-05-23
2023-05-23 Implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface III
Introduction IV
1 Scope 1
2 Consistency 1
3 Normative references 1
4 Terms and Definitions 2
5 Abbreviations5
6 Graphic representation mechanism 5
6:1 Overview 5
6:2 Graphic representation function 7
6:3 Empty graph representations 8
6:4 Default representation 9
6:5 Note 9
6:6 Overview of pictorial representations 9
7 Pack - Graphic Expression 9
7:1 Overview 9
7:2 Symbol structure 10
8-pack - Graphics Express Core 14
8:1 Package Semantics 14
8:2 Package - GRAPHIC EXPRESSION FUNCTIONS 15
8:3 Package-Symbol 19
8:4 Package - Graphics Catalog 34
9-pack - Graphic representation extension 37
9:1 Package Semantics 37
9:2 Package - conditional function extension 37
9:3 Package-context extensions 39
9:4 Packet-composite sign extension 44
9:5 Package - Complex Sign Extension 53
9:6 Package - Reusable Symbol Component Extension 57
9:7 Package-Symbol Parameter Extensions 61
9:8 Package - Function Symbolic Parameter Expansion 67
10 Basic Implementation Package 73
10:1 Package-feature data model 73
Appendix A (Normative) Abstract Test Suite 75
A:1 Graphic representation core 75
A:2 Graphic representation function extension 77
A:3 Sign extension 77
A:4 Icon representation catalog extension 78
Appendix B (informative) Rule-Based Graphical Representations 79
B:1 Graphic representation rules 79
B:2 Priority attributes 79
B:3 Example 80
APPENDIX C (INFORMATIVE) ENTERPRISE VIEWS OF SCHEMATIC REPRESENTATIONS 81
C:1 Overview 81
C:2 Geographic representation of group goals 81
C:3 Geographic representation range 81
C:4 Geographic representation policy 82
C:5 Graphic representation process 82
References 85
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
This document replaces GB/T 24355-2009 "Geographic Information Graphical Expression": Compared with GB/T 24355-2009, except for structural adjustment
In addition to editorial changes, the main technical changes are as follows:
--- Changed the graphic representation mechanism (see Chapter 6, Chapter 7 of the:2009 edition);
--- Increased the conditional function expansion and context expansion of the graphical expression function (see 9:2, 9:3);
--- Added compound symbols, complex symbols, and reusable symbol components that allow symbols to be stored in the form of external URLs, symbol parameters
Number, function symbol parameters (see 9:4~9:8):
This document is equivalent to ISO 19117:2012 "Graphic representation of geographic information":
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by the Ministry of Natural Resources of the People's Republic of China:
This document is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230):
This document was drafted by: Wuhan University, National Basic Geographic Information Center, Ministry of Natural Resources Surveying and Mapping Standardization Research Institute, Beijing Baidu:com
Technology Co:, Ltd:, Wuhan University of Technology, Tianjin Institute of Surveying and Mapping:
The main drafters of this document: Li Lin, Su Fei, Zhu Haihong, Zheng Xinyan, Zhai Liang, Qiu Junwu, Zhang Kun, Yin Zhangcai, Zhang Zhijun, Cai Zhongliang, Liu Xiaoqiang,
Zhu Xiuli, Li Hongli, Ying Shen, Weng Min:
The release status of previous versions of this document and the documents it replaces are as follows:
---First published as GB/T 24355-2009 in:2009;
--- This is the first revision:
Introduction
This document specifies a conceptual schema for graphical representation of data, which includes symbols and graphical representation functions: GRAPHIC EXPRESSION FUNCTION OFF
Linking features and symbols so that features can be represented graphically on maps or other display media: The conceptual schema provides a general concept
Framework, including class, attribute, association and operation, specifies the structure and relationship among elements, graphic expression functions and symbols: the framework
Separate the content and representation of the data so that the data can be represented graphically independently of the dataset: The framework is derived from existing pictorial representations
The concept of implementation, and as a concept standard for use in future graphical representation implementations, such as: OGC symbol encoding and WMS styled layer drawing
descriptor file:
This document provides an abstract model for developers of graphical representation systems, so that developers can flexibly implement graphical representation of geographic data:
expressive system:
This revision mainly includes: expanding the concept of graphical expression rules into a more general graphical expression function; symbols (including parameterized symbols)
The definition of a graph expression; the graph expression function and symbol in the graph expression catalog; defines a graph expression core pattern and several specialization instances
expand:
This revision expands the concept of GB/T 24355-2009 (ISO 19117:2005, IDT), and the content of the revision includes the specification of graphical representation (for
specifications for symbols rather than operations), schema catalogs (also include symbols), and rule-based schemas (multiple rules allowed):
Graphical representation of geographic information
1 Scope
This document specifies a graphical representation concept schema for describing symbols, graphical representation functions that map geospatial features to symbols:
Numbers, the symbol set in the representation catalog, and the representation function set: This schema can be used to illustrate the design of an expression system: It allows the number of elements
The data is separated from the representation data so that the data can be represented independently of the data set:
This document does not apply to the following:
---Standard symbol set (such as chart symbol specification 1---IHO);
---Symbol Graphics Standard [such as Scalable Vector Graphics (SVG)];
---Graphical expression services (such as network map services);
--- Non-visual pictorial expression ability (such as auditory symbols);
---Dynamic graphics rendering (such as the drawing of dynamic tide lines);
---Process rules after pictorial expression (such as map synthesis, solving overprinting, shifting rules);
--- Three-dimensional symbolization (such as simulation modeling):
2 consistency
Any pictorial catalogs, pictorial functions, and symbols that are marked to be consistent with this document shall meet the requirements of the abstract test suite in Appendix A:
The specified requirements, and meet the requirements of the graphical expression extension:
Conformance classes are used to graphically represent the core classes and their extensions: These extensions provide some additional functionality and are not mutually exclusive:
Graphically express the core conformance classes:
---Illustrated expression core consistency class (generic);
---Illustrated expression core consistency class---symbol;
--- Graphical expression core consistency class --- Graphical expression function;
--- Graphic representation core consistency class --- Graphic representation directory:
Graphic representation functions extend conformance classes:
---Illustrated expression core plus conditional function extension;
---Illustrated expression core plus context extension;
---Illustrated expression core plus function symbolic parameter expansion:
Sign extension conformance classes:
---Illustrated expression core plus compound sign extension;
---Graphic expression core plus complex symbol extension;
---Graphic expression core plus reusable symbol component extension;
---Illustrated expression core plus sign parameter expansion:
3 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
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