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GB/T 40771-2021 English PDF

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GB/T 40771-2021: Representations of 3D features of urban real estate
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Basic data

Standard ID GB/T 40771-2021 (GB/T40771-2021)
Description (Translated English) Representations of 3D features of urban real estate
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A75
Word Count Estimation 21,212
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 40771-2021: Representations of 3D features of urban real estate

---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.
Representations of 3D features of urban real estate ICS 07.040 A75 National Standards of People's Republic of China Expression of three-dimensional spatial elements of urban real estate Released on 2021-10-11 2021-10-11 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Basic requirements 2 4.1 Fundamentals of Mathematics 2 4.2 Accuracy requirements 3 4.3 Data format 3 4.4 Unit of measurement 3 4.5 Actual measurement of boundary point 3 5 Spatial information expression 3 5.1 The content expressed by three-dimensional spatial elements 3 5.2 Spatial expression 3 5.3 Expression of geometric relations 3 5.4 Expression of spatial position relationship 4 6 Attribute information expression 4 6.1 Conceptual model 4 6.2 Right holder package 5 6.3 Management Pack 5 6.4 Property rights package 6 6.5 Boundary Address Package 6 Appendix A (informative appendix) Example of expression of three-dimensional spatial elements of urban real estate 7 Appendix B (informative appendix) Boundary site point, boundary line, boundary surface and property body description example 11 Appendix C (informative appendix) Property information description table of the right holder package 12 Appendix D (informative appendix) Management package attribute information description table 13 Appendix E (informative appendix) Property rights package attribute information description table 14 Appendix F (informative appendix) Description Table 15 of Address Packet Attribute Information Reference 16

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed by the Ministry of Natural Resources of the People's Republic of China. This standard is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230). Drafting organizations of this standard. Wuhan University, Shenzhen University, China Land Survey and Planning Institute, Wuhan Institute of Surveying and Mapping, Tianjin Institute of Surveying and Mapping, Shenzhen Shenzhen City Cadastral Surveying and Mapping Brigade, Construction Comprehensive Survey Research and Design Institute Co., Ltd., Tongji University, Shenzhen Digital City Engineering Research Center, Jinan City Research Institute of Surveying and Mapping, Sichuan Shihui Zhitu Spatial Information Technology Co., Ltd., Wuhan Land Resources and Planning Information Center, Nanjing Ubiquitous Geographic Information Industry Research Institute Co., Ltd., Nanjing Normal University, Chongqing Surveying Institute, Beijing Institute of Surveying and Mapping, Interstellar Space (Tianjin) Science and Technology Development Co., Ltd., Standardization Research Institute of Surveying and Mapping, Ministry of Natural Resources. The main drafters of this standard. Ying Shen, Guo Renzhong, Li Lin, Jiang Dong, Xiao Jianhua, Huang Liang, Liu Chun, Zhu Qing, Lu Guonian, Wang Shanhua, Zhang Zhijun, Wang Shudong, Chen Xueye, Tan Renchun, Huang Qingbin, Xiang Zejun, Du Hongtao, Shao Shiwei, Yang Bogang, Zhang Baogang, Wu Yumiao, He Biao, Song Yaodong, Xue Mei, Zhou Liangchen, Luo Mingjun, Qiu Junwu, Guo Han, Huang Enxing, Gao Jian, Chen Naipin, Manor, Li Chengpeng.

Introduction

The three-dimensional application of land resources makes urban space continue to extend underground and above ground, and various high-rise buildings and underground spaces across parcels As it emerges in the city, there is an urgent need for standardized expression methods to support the ownership registration and management with three-dimensional real estate as the basic unit. Aiming at the three-dimensional spatial elements of real estate within the city, based on the real estate unit (property body), establish an urban three-dimensional real estate element system The first expression method is an important means to solve the three-dimensional real estate management problems in the three-dimensional land development and utilization, and it is also an urban space management And one of the core technologies of modeling. In order to express the spatial and attribute information of the three-dimensional space elements of urban real estate in a unified and standardized manner, Develop this standard. Expression of three-dimensional spatial elements of urban real estate

1 Scope

This standard specifies the basic requirements for spatial information and attribute information of three-dimensional spatial elements of urban real estate. This standard applies to the description of spatial data of three-dimensional spatial elements of urban real estate and the establishment of databases.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 17986.1 Specification for Property Measurement Unit 1.Property Measurement Regulations TD/T 1001 Cadastral Survey Regulations CJJ/T 8 Urban Survey Specification

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Realestate Land (sea area) and fixed objects such as houses and trees. [GB/T 37346-2019, definition 3.15] 3.2 Urbanrealestate Land, houses, forests and other fixed objects within the city limits. 3.3 Three-dimensional spatial elements of urban real estate 3Dfeaturesofurbanrealestate The three-dimensional spatial elements of real estate with three-dimensional characteristics in urban real estate (3.2). 3.4 3Dpropertyunit A three-dimensional space domain with a fixed geographic location and shape with fixed ownership boundaries, independent rights and consistent ownership, which is a city that does not move The basic unit that produces three-dimensional spatial elements (3.3), including structures such as three-dimensional parcels and houses. 3.5 Boundaryline The ownership boundary of the property body (3.4). 3.6 Boundarypoint The turning point of the boundary line (3.5). 3.7 Boundarysurface The closed surface formed by the boundary line (3.5).

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