GB/T 24355-2023 English PDF

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GB/T 24355-2023: Geographic information - Portrayal
Status: Valid

GB/T 24355: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24355-2023	1644	Add to Cart	10 days	Geographic information - Portrayal	Valid
GB/T 24355-2009	RFQ	ASK	4 days	Geographic information -- Portrayal	Obsolete

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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Older Standard (superseded by this standard): GB/T 24355-2009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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