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GB/T 7930-2008Specifications for aerophotogrammetric office operation of 1:500 1:1 000 1:2 000 topographic maps (English PDF)

1:500 1:1 000 1:2 000 地形图航空摄影测量内业规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 20, 2008

Implementation date

December 1, 2008

Scope

GB/T 7930-2008 is the English-translated version of 1:500 1:1 000 1:2 000 地形图航空摄影测量内业规范.

GB/T 7930-2008 is the Chinese standard "Specifications for aerophotogrammetric office operation of 1:500 1:1 000 1:2 000 topographic maps".

Its scope clause reads: This standard specifies the use of simulation, analytical photogrammetry mapping method 1.500,1.1000,1.2000 topographic map specifications, fine And within the industry, the basic requirements of the job.

This standard applies to aerial photogrammetry 1.500,1.1000,1.2000 Topographic jobs within the industry. Its clauses include general.

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Document preview — GB/T 7930-2008

National Standard of the People's Republic of China

ICS: 07.040
Classification: A 77
Replacing: GB 7930-1987

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Introduction
1 Scope
2 Normative references
3 1 General Provisions
3.1 Topographic Map Specification
3.3 pairs of aerial data requirements
3.4 pairs of aerial outside the industry, the outcome of the claim
3.5 Technical Design
3.7 Requirements for other jobs Method
4 photographic processing
4.1 General Requirements
4.2 sun like
4.3 of reply
4.4 photographic typesetting
5 Analytical Aerotriangulation
5.1 Preparations
5.3 coordinate measuring
5.4 Adjustment calculation and results finishing
5.5 Pile aerial point encryption method
5.6 Encryption Edge provisions
5.7 Show 8 points
6 photo plan and Orthophotomap
6.1 correct mosaic
6.2 correct differential
7 Precision Stereo plotter mapping
7.1 Preparation
7.2 Orientation
7.3 mapping surface features, topography
7.4 Edge and finishing
7.5 Pile aerial mapping 14-point method
8 analytical plotter online mapping
8.1 Preparations
8.2 orientation and mapping
9 picture painted clear and Edge
9.1 clear picture painted of claim
9.2 Original Edge provisions
10 inspection and acceptance and handed over 16 data
10.1 Technical Summary
Annex B (informative) slot length W, width D Table

1 Scope

This standard specifies the use of simulation, analytical photogrammetry mapping method 1.500,1.1000,1.2000 topographic map specifications, fine

And within the industry, the basic requirements of the job.

This standard applies to aerial photogrammetry 1.500,1.1000,1.2000 Topographic jobs within the industry.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 7931 1.500,1.1000,1.2000 topographic map Aerophotogrammetry outside the industry norm

GB/T 6962 1.500,1.1000,1.2000 scale topographic maps by aerial photography norm

GB/T 18315 digital topographic map series and basic requirements

GB/T 20257.1 national basic scale map Schema Part 1 1.500 1.1000 1.2000 Topographical Map

CH/T 1001 Technical Summary mapping rules for preparation

CH1002 mapping products for inspection, acceptance

CH1003 Plotting Product Quality Standards

CH/T 1004 mapping technology design requirements

3 General

3.1 Topographic Map Specification

3.1.1 spatial coordinate system

Plane coordinate system should be used to coordinate a unified state; independent coordinate system when strictly necessary, can be legally approved. Projection, high

Drive system according to GB/T 18315 execution.

3.1.2 topographic map of subdivision and number

Framing and numbered GB/T 20257.1 execution.

3.1.3 Terrain category

Ground. the vast majority of the ground slope at 2 ° the following areas;

Hills. most of the ground slope between 2 ° ~ 6 ° area;

Mountain. the vast majority of ground slope between 6 ° ~ 25 ° in the region;

Alpine to. the vast majority of the ground slope at 25 ° above areas.

3.1.4 The basic contour interval

The basic contour interval based on type of terrain, the provisions in Table 1, the general use of a picture within a basic contour intervals. When the basic contours not

When can show topographical features should be added between the measured curve, can be combined with the measured curve to help when necessary.

Flat area, according to Fig needs, may not draw contour lines, only elevation annotation dots.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

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Editions of GB/T 7930

Edition	Title	Revision	Status
GB/T 7930-2008	Specifications for aerophotogrammetric office operation of 1:500 1:1 000 1:2 000 topographic maps	current edition	Current
GB 7930-1987	Specifications for aerophotogrammetric office operation of 1:500 1:1 000 1:2 000 topographic maps	previous edition	Superseded

This page sells the current edition, GB/T 7930-2008. Earlier editions are listed for reference only.

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