GB/T 20258.3-2019 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20258.3-2019	RFQ	ASK	3 days	Data dictionary for fundamental geographic information features -- Part 3: Scale of 1∶25 000 1∶50 000 1∶100 000	Valid
GB/T 20258.3-2006	RFQ	ASK	3 days	Data dictionary for fundamental geographic information features -- Part 3: data dictionary for fundamental geographic information features of 1: 25000 1: 50000 1: 100000 scale	Obsolete

Similar standards

GB/T 41452   GB/T 42056   GB/T 35641   GB/T 45790.1   GB/T 20258.4   GB/T 20258.1   

Basic data

Standard ID: GB/T 20258.3-2019 (GB/T20258.3-2019)
Description (Translated English): Data dictionary for fundamental geographic information features -- Part 3: Scale of 1��25 000 1��50 000 1��100 000
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A75
Classification of International Standard: 07.040
Word Count Estimation: 414,447
Date of Issue: 2019-03-25
Date of Implementation: 2019-10-01
Older Standard (superseded by this standard): GB/T 20258.3-2006
Quoted Standard: GB/T 13923; GB/T 20257.3
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the content structure and description of elements of 1:25000, 1:50000, 1:100000 basic geographic information element data dictionary. This standard is applicable to the data production, database construction, update and maintenance of basic geographic information databases with scales of 1:25000, 1:50000 and 1:100000. 1:25000, 1:50000, 1:100000 scale basic geographic information data analysis application and mapping output can be implemented by reference.

GB/T 20258.3-2019: Data dictionary for fundamental geographic information features -- Part 3: Scale of 1∶25 000 1∶50 000 1∶100 000

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(Basic Geographic Information Elements Data Dictionary - Part 3. 1.25 000 1.50 000 1.100 000 scale) ICS 07.040 A75 National Standards of People's Republic of China Replace GB/T 20258.3-2006 Basic geographic information element data dictionary Part 3. 1.25000 1.50000 1.100000 scale Part 3.Scaleof1.25000 1.50000 1.100000 Published on.2019-03-25 2019-10-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 data dictionary structure and content 2 4.1 Structure 2 4.2 Element Name 2 4.3 Element Description 2 4.4 Feature Classification Code 2 4.5 Feature Attribute Table 3 4.6 Feature Geometry 4 4.7 means example 5 4.8 Element Relationship 5 5 element data dictionary content 9 6 element data dictionary expansion principle 9 Appendix A (Normative Appendix) 1. 25000 1.50000 1.100000 Basic Geographic Information Elements Data Dictionary Content 10 Feature Classification Code Index 398 Chinese index 403

Foreword

GB/T 20258 "Basic Geographic Information Element Data Dictionary" is divided into four parts. --- Part 1. 1.500 1.1000 1.2000 scale; --- Part 2. 1.5000 1.10000 scale; --- Part 3. 1.25000 1.50000 1.100000 scale; --- Part 4. 1.250000 1.500000 1.1000000 scale. This part is the third part of GB/T 20258. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 20258.3-2006 "Basic Geographic Information Elements Data Dictionary Part 3. 1.25000 1.50000 1.100000 Basic Geographic Information Element Data Dictionary. Compared with GB/T 20258.3-2006, the main technical changes in this section are as follows. --- Added 21 elements. water well house, drying room, other use houses, tailings pond, tower, construction area, open-air warehouse, greenhouse, Ports, dedicated oxygen supply points, sun-baked platforms, railway observation decks, village roads, wildlife passages, heat dissipation rods, wind walls, territorial sea baselines, territorial waters Base point, special administrative area boundary, wind-proof sand-fixing stone square, wind-proof sand-fixing grass square; --- Increased the rules for data dictionary element classification; --- Added Chapter 6 "Element Data Dictionary Expansion Principles"; --- Added two data items "data source and update date" in the feature attribute table; --- Removed the Ming Reef elements and moved their geometric and cartographic representations to the island features; ---Modified some sample symbol size, color, description and other errors in the original standard. This part is proposed by the Ministry of Natural Resources of the People's Republic of China This part is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230). This section drafted by. National Surveying and Mapping Geographic Information Bureau Surveying and Mapping Standardization Institute, Wuhan University. The main drafters of this section. Guo Yufang, Deng Guoqing, Yan Jingxin, Yin Xiaoqing, Wang Huanping, Liu Haiyan, He Chaoying, Cai Zhongliang, Ren Fu. The previous versions of the standards replaced by this section are. ---GB/T 20258.3-2006. Basic geographic information element data dictionary Part 3. 1.25000 1.50000 1.100000 scale

1 Scope

This part of GB/T 20258 specifies the 1.25000, 1.50000, 1.100000 basic geographic information element data dictionary. Description of the structure and elements. This section applies to 1.25000, 1.50000, 1.100000 scale basic geographic information database data production, database construction, and more New and maintained. Analysis and application of basic geographic information data of 1.25000, 1.50000, and 1.100,000 scale can be referred to carried out.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 13923 basic geographic information element classification and code GB/T 20257.3 National Basic Scale Map Drawing Part 3. 1.25000 1.50000 1.100000 Terrain Schema

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Entity entity A phenomenon in the real world. Note. Entities cannot be subdivided into the same type of phenomenon. 3.2 Feature The abstraction of real world phenomena. Note. An element can appear as a type (such as a lake) or as an instance (such as Dongting Lake). [GB/T 17694-2009, definition B.179] 3.3 Feature attribute featureattribute The characteristics of the feature. Note 1. A feature attribute may appear as a type or an instance. When there is only one meaning, either use the feature attribute type or use the feature Attribute instance. Note 2. A feature attribute should have a name, a data type, and a range of values associated with it. The feature attribute of a feature instance should have a genus obtained from the value range Sex value. [GB/T 17694-2009, definition B.181] ......

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