Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 20258.4-2019 English PDF

Q: How long will the true-PDF of English version of GB/T 20258.4-2019 be delivered?

Upon your order, we will start to translate GB/T 20258.4-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 16 ~ 21 working days. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of GB/T 20258.4-2019_English with my colleagues?

Yes. The purchased PDF of GB/T 20258.4-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Q: Should I purchase the latest version GB/T 20258.4-2019?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20258.4-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$4279.00 · In stock
Delivery: <= 21 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20258.4-2019: Data dictionary for fundamental geographic information features -- Part 4: Scale of 1∶250 000 1∶500 000 1∶1 000 000
Status: Valid

GB/T 20258.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20258.4-2019	4279	Add to Cart	21 days	Data dictionary for fundamental geographic information features -- Part 4: Scale of 1∶250 000 1∶500 000 1∶1 000 000	Valid
GB/T 20258.4-2007	RFQ	ASK	3 days	Data dictionary for fundamental geographic information features -- Part 4: Data dictionary for fundamental geographic information features of 1: 250 000 1: 500 000 1: 1 000 000 scale	Obsolete

Similar standards

GB/T 41452 GB/T 42056 GB/T 35641 GB/T 45790.1 GB/T 20258.3 GB/T 20258.1

Basic data

Standard ID: GB/T 20258.4-2019 (GB/T20258.4-2019)
Description (Translated English): Data dictionary for fundamental geographic information features -- Part 4: Scale of 1��250 000 1��500 000 1��1 000 000
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A75
Classification of International Standard: 07.040
Word Count Estimation: 214,252
Date of Issue: 2019-03-25
Date of Implementation: 2019-10-01
Older Standard (superseded by this standard): GB/T 20258.4-2007
Quoted Standard: GB/T 13923; GB/T 20257.4
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the content structure and description of elements of 1:250000, 1:500000, 1:1000000 basic geographic information element data dictionary. This standard is applicable to the data production, construction, update and maintenance of basic geographic information databases of 1:250000, 1:500000 and 1:1000000 scales. 1:250000, 1:500000, 1:1000000 scale basic geographic information data analysis application and mapping output can be implemented by reference.

GB/T 20258.4-2019: Data dictionary for fundamental geographic information features -- Part 4: Scale of 1∶250 000 1∶500 000 1∶1 000 000

---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.
(Basic Geographic Information Elements Data Dictionary - Part 4. 1.250 000 1.500 000 1.1 000 000 scale) ICS 07.040 A75 National Standards of People's Republic of China Replace GB/T 20258.4-2007 Basic geographic information element data dictionary Part 4. 1.250000 1.500000 1.1,000,000 scale Part 4.Scaleof1.250000 1.500000 1.1000000 Published on.2019-03-25 2019-10-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 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 description content 8 6 element data dictionary expansion principle 8 Appendix A (Normative Appendix) 1.250000 1.500000 1.1000000 Basic Geographic Information Elements Data Dictionary Content 9 Feature Classification Code Index 206 Chinese index 209

Foreword

GB/T 20258 "Basic Geographic Information Element Data Dictionary" is divided into the following 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 fourth 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 20258.4-2007 "Basic Geographic Information Elements Data Dictionary Part 4. 1.250000 1.500000 1.10000000 Basic Geographic Information Element Data Dictionary. Compared with GB/T 20258.4-2007, the main technical changes in this part are as follows. --- Added the expression "relationship description" (see 4.8.2). ---Element data dictionary feature attribute table has added the "data source and data update date" attribute item, geometric representation of the attribute column in the table The "data source and update date" has been added accordingly. --- Added 16 elements. culvert; venting torch; aquaculture farm; greenhouse, greenhouse; village road; light rail; elevated road; wildlife pass Road; port; territorial sea baseline, territorial sea base; pit; wind and sand fixed square; mudslide; soil ridge; fire zone. Expanded its classification Code, definition, attribute items and corresponding table contents. --- Change the data type and value range of all feature data sources from "character 10" to "character 60". --- Deleted the elements of the Ming Reef. --- The description of some elements has been modified and improved, such as satellite positioning continuous operation site, internal profile, island. --- The inner and longitude feature data dictionary has the longitude and latitude attributes removed. 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. Zhang Kun, Yan Wei, Chen Jun, Song Yaodong, Duan Yuying, Zhu Haihong, Su Shi. The previous versions of the standards replaced by this section are. ---GB/T 20258.4-2007. Basic geographic information element data dictionary Part 4. 1.250000 1.500000 1.1,000,000 scale

1 Scope

This part of GB/T 20258 specifies 1.250000, 1.500000, 1.1000000 basic geographic information element data dictionary The description of the content structure and elements. This section applies to the production and construction of the basic geographic information database of 1.250000, 1.500000, 1.1000000 scale. Design, update and maintenance. Analysis and application of basic geographic information data of 1.250000, 1.500000, 1.1000000 scale Can refer to the implementation.

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 20257.4 National Basic Scale Map Drawing Part 4. 1.250000 1.500000 1.1000000 Shape pattern

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] ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20258.4-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20258.4-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 16 ~ 21 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20258.4-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20258.4-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 20258.4-2019?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20258.4-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.