GB/T 35631-2017 English PDF

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GB/T 35631-2017: Specification for XML description of map symbol
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35631-2017	1399	Add to Cart	8 days	Specification for XML description of map symbol	Valid

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Basic data

Standard ID: GB/T 35631-2017 (GB/T35631-2017)
Description (Translated English): Specification for XML description of map symbol
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A79
Classification of International Standard: 07.040
Word Count Estimation: 70,718
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 35631-2017: Specification for XML description of map symbol

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Specification for XML description of map symbol ICS 07.040 A79 National Standards of People's Republic of China Map Symbol XML Description Specification Published on.2017-12-29 2018-07-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration released Directory Preface III Introduction IV 1 Scope 1 2 Terms and Definitions 1 3 Symbols and Abbreviations 2 3.1 Abbreviations 2 3.2 Symbol 2 4 Basic Principles 3 5 Expressions of Map Symbols 4 5.1 Classification and Structure of Map Symbols 4 5.1.1 Classification of Map Symbols 4 5.1.2 Structure of Map Symbols 4 5.2 Point Symbol Expression Model 5 5.2.1 Classification of Point Symbols 5 5.2.2 Expression of Vector Point Symbols 5 5.2.3 Expression of Grid Point Symbols 5 5.2.4 Expression of TrueType Point Symbols 5 5.3 Line Symbol Expression Model 5 5.3.1 Classification of Line Symbols 5 5.3.2 Expression of simple line symbols 6 5.3.3 Expression of Combination Line Symbols 6 5.3.4 Expression of Fill Line Symbols 6 5.4 Surface Symbol Expression Model 6 5.4.1 Classification of Surface Symbols 6 5.4.2 Expression of Color Fill Face Symbols 7 5.4.3 Expression of Point Filler Face Symbols 7 5.4.4 Expression of Complex Filler Face Symbols 7 5.4.5 Expression of Line Filled Surface Symbols 7 6 XML-based map symbol description 7 6.1 Basic Requirements 7 6.2 XML description of point symbols 7 6.2.1 XML description of vector point symbols 7 6.2.2 XML description of grid point symbols 10 6.2.3 XML description of TrueType point symbols 10 6.3 XML Description of Line Symbols 11 6.3.1 XML description of simple line symbols 11 6.3.2 XML description of composite line symbols 12 6.3.3 XML description of fill line symbols 15 6.4 XML description of polygon symbols 17 6.4.1 XML description of color-filled surface symbols 17 6.4.2 XML description of point-filled surface symbols 18 6.4.3 XML description of complex filled face symbols 19 6.4.4 XML description of line filling surface symbols 20 7 Map Symbol Library Sharing Metadata 22 7.1 Map Symbol Library Metadata 22 7.2 Mapping Ratio 22 7.3 Local Coordinate System 22 7.4 Map Symbol Library XML Description 23 7.5 Map Symbol Library Sharing and Extension 23 Appendix A (Informative) Map Symbol Basic Element 25 Appendix B (Informative) Dot Symbol XML Schema 28 Appendix C (Informative) Line Symbol XML Mode 38 Appendix D (Informative) Surface Symbols XML Mode 50 Appendix E (Informative) Symbol Library XML Schema 61 References 63

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the National Bureau of Surveying and Mapping Geographic Information. This standard is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230). This standard was drafted by. Wuhan University, Wuhan University of Technology, National Institute of Surveying and Mapping, Institute of Surveying and Mapping Standardization, National Basic Geography information Center. The main drafters of this standard. Li Lin, Yin Zhangcai, Zhu Haihong, Yu Zhonghai, Hu Yi, Zhang Kun, Wang Donghua, Zhang Hang, Ying Shen, and Cai Zhongliang.

Introduction

Map symbol sharing is an important part of geographic information sharing. Using a common description method to describe the map symbol is to realize the symbol An effective way to share. This standard is based on the common technical characteristics of map symbol expressions and gives a scheme for describing symbols using XML as a map. Symbol sharing provides the core technical foundation. The symbols described in this standard do not contain annotations. Map Symbol XML Description Specification

1 Scope

This standard specifies basic expression models for map symbols, basic description principles for map symbols, and description schemes based on XML. When the system is implemented, it can be combined with each software system platform to expand and modify. This standard is applicable to the design, production and updating of topographic map symbols for cross-platform and network environments, and can also be used for various types of thematic map symbols. Shares provide references.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Map symbol mapsymbol The general name of various graphics and symbols on the map consists of graphic variables such as shape, size, position, orientation, text, and color. Note. Rewrite GB/T 16820-2009, definition 4.35. This standard only discusses the part of the graphic symbol and does not discuss the part of the annotation. 2.2 Map symbol library mapsymbollibrary A collection of data information of various map symbols selected for map compilation organized according to a predetermined structure. [GB/T 16820-2009, definition 5.8] 2.3 Point symbol pointsymbol The symbol used to represent an abstract feature or feature of a point. Note. Rewrite GB/T 16820-2009, definition 4.36. The size of the point symbol has nothing to do with the map scale but has a positioning feature. 2.4 Line symbol linearsymbol The symbol used to represent abstract features or phenomena that are lines. Note. Rewrite GB/T 16820-2009, definition 4.37. The length of the line symbol extending along a certain direction is related to the map scale. 2.5 Surface symbol arealsymbol A symbol used to represent an abstract surface feature or phenomenon. Note. Rewrite GB/T 16820-2009, definition 4.38. The range of surface symbols is related to the map scale. 2.6 Elementary primitive primarygraphicelement The most basic graphic elements that make up the map symbol, such as points, lines, and faces, are the smallest graphical units that can be edited. [CH/T 4017-2012, definition 2.4] 2.7 Composite primitive compositesymbolcel An ordered collection of basic primitives. [CH/T 4017-2012, definition 2.12] ......

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