GB/T 37270.2-2018 English PDF

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GB/T 37270.2-2018: Vector map of marine fundamental geographic feature -- Part 2: Symbol database design
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37270.2-2018	279	Add to Cart	3 days	Vector map of marine fundamental geographic feature -- Part 2: Symbol database design	Valid

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GB/T 41306   WB/T 1120   GB/T 40952   GB/T 45499   GB/T 34110   GB/T 37270.1   

Basic data

Standard ID: GB/T 37270.2-2018 (GB/T37270.2-2018)
Description (Translated English): Vector map of marine fundamental geographic feature -- Part 2: Symbol database design
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A14
Classification of International Standard: 01.140.20;07.060
Word Count Estimation: 14,134
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37270.2-2018: Vector map of marine fundamental geographic feature -- Part 2: Symbol database design

---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.
Vector map of marine fundamental geographic feature--Part 2. Symbol database design ICS 01.140.20; 07.060 A14 National Standards of People's Republic of China Marine basic geographic elements vector map Part 2. Symbol Library Design Part 2. Symboldatabasedesign Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 37270 "Marine Basic Geographical Elements Vector Map" is divided into three parts. --- Part 1. Symbol design; --- Part 2. Symbol Library Design; --- Part 3. Symbol format exchange. This part is the second part of GB/T 37270. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed by the State Oceanic Administration. This part is under the jurisdiction of the National Marine Standardization Technical Committee (SAC/TC283). This section drafted by. National Oceanic Bureau East China Sea Information Center, Shanghai Feixun Data Communication Technology Co., Ltd., Tongji University. The main drafters of this section. Ye Na, Hong Feng, Zhuang Yong, Ru Rufu, Gao Jingxia, Chen Yuyu, Sun Jie, Zhang Feng, Chu Gaosheng, Liu Yang, Huang Yaxin, Take Xiaodan and Dai Qingqing. Marine basic geographic elements vector map Part 2. Symbol Library Design

1 Scope

This part of GB/T 37270 specifies the principles, symbolic classification codes and symbol libraries for the design of vector symbols for marine basic geographic elements. Structural design. This part is applicable to the design of the vector symbol library of marine basic geographic elements in the electronic base map of marine geographic information system.

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 37270.1 Marine basic geographic elements vector map Part 1. Symbolic design

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Vector map symbol library symboldatabaseofvectormap A data set that stores vector map symbol information.

4 Symbol Library Design Principles

The vector map symbol library design should follow the following four principles. a) Integrity. complete structure and easy to use; b) versatility. there are common data formats and interfaces; c) practicability. can manage the vector map symbols of marine basic geographic elements; d) Scalability. Supports the expansion of marine-based geographic elements based on existing symbols and codes.

5 symbol classification code

5.1 Symbol Type According to the provisions of GB/T 37270.1, it is divided into dot symbols, line symbols, and surface symbols. 5.2 Symbol Classification Symbols are classified according to the type of marine basic geographic elements. See Appendix A for symbol classification. 5.3 Symbolic coding 5.3.1 Marine basic geographic elements Vector map symbol coding is divided into three parts. vector identifier, symbol type coding and symbol classification coding. ......

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