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GB/T 30170.2-2016: Geographic information -- Spatial referencing by coordinates -- Part 2: Extension for parametric values
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Geographic information -- Spatial referencing by coordinates -- Part 2: Extension for parametric values
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GB/T 30170.2-2016
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Basic data | Standard ID | GB/T 30170.2-2016 (GB/T30170.2-2016) | | Description (Translated English) | Geographic information -- Spatial referencing by coordinates -- Part 2: Extension for parametric values | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A75 | | Classification of International Standard | 07.040; 35.240.70 | | Word Count Estimation | 17,170 | | Date of Issue | 2016-10-13 | | Date of Implementation | 2017-02-01 | | Regulation (derived from) | National Standard Notice No.1716 of 2016 | | 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 30170.2-2016: Geographic information -- Spatial referencing by coordinates -- Part 2: Extension for parametric values
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Geographic information - Spatial referencing without coordinates - Part 2. Extension for parametric values
ICS 07.040; 35.240.70
A75
National Standards of People's Republic of China
Geographic information is based on spatial reference of coordinates
Part 2. Parameter value expansion
Part 2. Extensionforparametricvalues
(ISO 19111-2..2009, IDT)
2016-10-13 released
2017-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Directory
Preface III
Introduction IV
1 Scope 1
Consistency requirements
3 normative reference document 1
4 Terms and definitions 1
5 agreement 2
5.1 Abbreviations 2
5.2 UML Symbols 2
5.3 attribute status 2
6 space - parameter reference 2
6.1 Summary 2
6.2 Parameter Coordinate Reference System 2
6.3 Parameter coordinate system 4
6.4 Parameter Basis 5
6.5 Space - Parameter Coordinate Reference System 6
6.6 Space with time - Parameter coordinate reference system 6
6.7 Transformation and conversion of parametric reference frame
Appendix A (Normative Appendix) Abstract Test Suite 7
A.1 Parameter coordinate The consistency of the reference system 7
A.1.1 Abstract Test Suite 7
A.1.2 Parameter coordinate The consistency of the reference system 7
A.1.3 Space - Parameter Coordinate Reference System Consistency 7
A.1.4 Space - Parameter - Time Coordinate Reference System Consistency 7
A.2 Consistency of coordinate operation 7
A.2.1 Abstract Test Suite 7
A.2.2 Coordinate operation on parameter CRS 7
Appendix B (informative) Example 8
B.1 Summary 8
B.2 Parameter parameter reference system 8 using parameter (air pressure)
B.3 uses a function of the parameter coordinate reference system 9
B.4 Space - Parameter Coordinate Reference System 10
Reference 13
Foreword
This part is Part 2 of GB/T 30170-2013, "Spatial Reference for Geographic Information Based on Coordinates". This part can be made separately
Use, but also with GB/T 30170-2013 supporting the use of.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part uses the translation method equivalent to ISO 19111-2..2009 "Geographic information based on the spatial reference of coordinates Part 2. Parameters
Value expansion ".
This part makes the following editorial changes.
- the use of our legal units of measurement in Appendix B;
--- In Appendix B, the horizontal reference coordinate system in B.4 is replaced by the original standard WGS84 to.2000 national geodetic coordinates
(CGCS2000), the ellipsoid name and parameters were adjusted accordingly;
[7] GB/T 17694-2009 Geographic Information Glossary (ISO /T S19104..2008, IDT).
This section is proposed by the National Mapping Geographic Information Service.
This section is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230).
This part of the drafting unit. China Institute of Surveying and Mapping, National Basic Geographic Information Center.
The main drafters of this part. Li Qingyuan, Wen Hanjiang, Gu Haiyan, Li Haitao, Zhu Xiuli, Li Li.
Introduction
GB/T 30170 describes the necessary elements for a complete definition of various types of coordinate-based spatial reference systems. In GB/T 30170,
The position of a point is defined by n scalar values, and one coordinate is one of the scalar values. GB/T 30170 allows the coordinates to be angular values
(Such as longitude and latitude) or linear values (such as east distance, north distance). GB/T 30170 also introduces the concept of composite coordinate reference system.
The composite coordinate reference system uses at least two independent coordinate reference systems to describe a three-dimensional spatial position.
The scientific community, especially those involved in environmental science, often expresses spatial locations in the form of parameters or functions. in
In these areas, this parameter or function is often treated as a coordinate, and its relationship with a dimension of space is usually non-linear. This kind of example is very
Many, but longitude, latitude and pressure are often used.
This part is used as an extension to GB/T 30170-2013 to define the parametric coordinate parameters using the concepts in ISO /IEC 3170-2013
According to the photo. These terms of GB/T 30170 are used to include a parametric coordinate reference system as part of a composite coordinate reference system.
As an option, the time can also be used as one or more additional axes.
Geographic information is based on spatial reference of coordinates
Part 2. Parameter value expansion
1 Scope
This part, as an extension to GB/T 30170-2013, specifies a conceptual model that describes spatial references with parameter values or functions.
It uses the model of GB/T 30170-2013 to combine a position in coordinates with a parameter value to form a space-
Parameter coordinate reference system (CRS). The space-parameter coordinate reference system can be extended to include time.
This section applies to manufacturers and users in the field of environmental information.
Those that are attributes of a spatial location or feature but are independent of the spatial reference are not included in this section.
2 Consistency requirements
Any coordinate reference system that claims to comply with this part shall meet the requirements of Appendix A.
3 normative references
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 30170-2013 Geographic information Spatial reference based on coordinates (ISO 19111..2007, IDT)
4 terms and definitions
The following definitions and definitions as defined in GB/T 30170-2013 apply to this document.
4.1
Parametric coordinate system parametriccoordinatesystem
The coordinate unit is a one-dimensional coordinate system of parameter values that do not have spatial properties.
4.2
Parametric coordinate reference system parametriccoordinatereferencesystem
Coordinate reference system based on a parameter reference.
4.3
Parameter reference parametricdatum
A reference to the relationship between the coordinate system and the object.
Note. This object usually refers to the earth.
4.4
Space - parameter coordinate reference system spatio-parametriccoordinatereferencesystem
A composite coordinate reference system consisting of a parametric coordinate reference system and a spatial coordinate reference system.
Note. Normally, the space component is used for "horizontal direction" and the parameter component is used for "vertical direction".
4.5
Space - parameter - time coordinate reference system spatio-parametric-temporalcoordinatereferencesystem
A composite coordinate system based on spatial coordinate reference system, parametric coordinate reference system and time coordinate reference system.
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