This standard specifies the recording format of digital mapping by photogrammetry to ensure the uniformity of mapping information storage and exchange. This standard applies to the data recording of digital mapping by photogrammetry of national series scales. GB/T 17158-1997 Recording format of digital mapping by photogrammetry GB/T17158-1997 Standard download decompression password: www.bzxz.net
This standard specifies the recording format of digital mapping by photogrammetry to ensure the uniformity of mapping information storage and exchange. This standard applies to the data recording of digital mapping by photogrammetry of national series scales.
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GB/T17158 This standard is formulated for the first time in my country. This standard is formulated based on the topographic map data recording items required by my country's national series of scale topographic map photogrammetry and digital mapping operations and the contents specified in the classification and code standards for corresponding scale topographic map elements. From the implementation of this standard, any recording format specified in the topographic map photogrammetry digital mapping specifications that conflict with or are inconsistent with this standard shall be subject to this standard. The appendix to this standard is a reminder appendix. This standard was proposed and managed by the National Bureau of Surveying, Mapping and Geoinformation. The drafting unit of this standard: Surveying and Mapping Standardization Institute of the National Bureau of Surveying, Mapping and Geoinformation. The main drafters of this standard: Lin Dingrong and Jiang Xiangluan. 1 Scope National Standard of the People's Republic of China Record format for photogrammetric digital mappingGB/T17158--1997 This standard specifies the record format for photogrammetric digital mapping to ensure the uniformity of storage and exchange of mapping information. This standard applies to the data record of photogrammetric digital mapping of national series scales. 2 Referenced standards The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version of the following standards. GB14804--931:5001:10001:2000 Classification code of topographic map elements GB/T15660--19951:50001:100001:250001:500001:10000 Classification and code of topographic map indices GB/T13989-92 National basic scale topographic map framing and numbering GB/T 7929-19951:5001:10001:2000 Topographic map format 3 Technical regulations for data recording 3.1 Measurement of data This standard stipulates that the digital mapping data of photogrammetry shall be recorded in the form of long-term data with the map sheet as the basic recording unit. The Gaussian coordinates, elevation and distance of topographic map elements shall be expressed in meters, with a maximum of 3 decimal places; the angle shall be expressed in sexagesimal degrees, minutes and seconds, with a maximum of whole seconds. The position of the topographic map annotation on the map is represented by the Gaussian coordinates of the lower left corner of the first character of the annotation, and the annotation direction is represented by the angle with the Y track. The units and decimals are the same as the topographic map elements. The height and spacing of the annotation are expressed in mm, and the decimal point is 1. In addition to the above, the measurement units of other data should be marked item by item. 3.2 Recording format of data files Data files are recorded in standard ASCII text files. 3.3 Classification and codes of topographic map elements The classification and codes of topographic map elements are implemented according to different topographic map scales (GB1480493 and GB/T15660--1995). 3.4 Classification and naming of data files The classification and naming of topographic map data files are shown in Table 1. Approved by the State Bureau of Technical Supervision on December 16, 1997 330 Implementation on August 1, 1998 File category Map basic information file Photographic orientation file Point feature file Line feature file GB/T 17158 —1997bZxz.net Map number *MAP Map number *POR Map number *POI Map number *LIN Contour file Annotation file Digital elevation model file Data quality assessment file Map number CON Map number *ANN Map number *DEM Map number *EST File naming The map number of the national basic scale topographic map is in accordance with the provisions of GB/T13989---92, and the map number of the scale topographic map is expressed by removing the part per million. The map numbers of the 1:500, 1:1000, and 1:2000 scale topographic maps are implemented (GB/T7929--1995 provisions, 4 data recording format 4.1 Map sheet basic information file *MAP The record format of the map sheet basic information file is shown in Table 2. If there are missing items, the default number "" should be entered (the same for the following files). Table 2 Administrative area Name of surveying unit Name of surveyor Name of graphic editor Model of surveying instrument Name of plane coordinate system Name of elevation system Name of classification and code standard of topographic map elements Camera model Date of aerial photography Scale of aerial photography Scale of mapping Date of adjustment Deadline of current data Coordinate belt number Gaussian coordinates of left lower corner map point XY Gaussian coordinates of left upper corner map point XY Top right map point Gaussian coordinates of point XY Gaussian coordinates of right lower corner outline point XY Geographical coordinates of left lower corner gallery point L.B3 Geographical coordinates of right upper corner gallery point LB Theoretical side length u of gallery point (cm) Theoretical side length c of gallery point (cm) Theoretical diagonal length d of outline point (cm) Plate Mean meridian convergence angle Magnetic declination Contour distance Total number of control points in the map Control point name (number) Digging point level Control point Gaussian coordinates XY Control point elevation Control point name (number)…. Eastern neighboring map sheet number Border connection status (connected/not connected, the same below) Southeast neighboring map sheet number Border situation South neighboring map sheet number Border situation Southwest neighboring map sheet number Border situation West neighboring map sheet number Border situation Northwest neighboring map sheet number Border situation Northeast neighboring map sheet number Photograph Orientation file*POR GB/T17158...1997 Table 2 (complete) Boundary situation Number of surveys and repairs (fill in 0 for the original survey map) Revision unit Revision date Camera model Aerial date Aerial scale The recording format of the photo orientation file is shown in Table 3. Arrange in the order of route number 1, image pair number 1, image pair number 2***route number 1, image pair number 1, image pair number 2. Route number Image pair number Number of points participating in image pair orientation Point number of 3 points in standard position Gaussian coordinates, elevation and orientation residuals of 3 points Image pair number Point number of 4 points in standard position Gaussian coordinates, elevation and orientation residuals of 4 points Mean error in plane orientation of this image pair Mean error in elevation orientation of this image pair 4.3 Point feature file *POI The point feature file records all information of point features with only one position coordinate. -·The record format of a point element is shown in Table 4332 Topographic map index record number Image pair number Number of element classification items Classification code 1 GB/T17158--1997 Classification code 2 Gaussian coordinates and elevation XY, Z Pointing coordinates 2F12. 3 F8. 3 The "Number of element classification items" in Table 4 and Table 5 below is an optional item, which refers to the number of different categories to which a certain topographic map element belongs. For example, a certain point element can be both a control point and an independent stone, and the number of element classification items is 2. The "Pointing coordinates" in Table 4 refer to the pointing coordinates for directional point elements (such as springs) that determine the direction of the symbol on the map.4.4 Line feature file *LIN The line feature file records the information of all linear features (including polyline segments, closed polylines, polygons, curve segments, closed curves, etc.) except terrain contour lines. The record format of a line feature is shown in Table 5. Table 5 Topographic map feature record number Image pair number Number of feature classification items Classification code 1 Classification code 2 Is it closed (yes/no) Length of a line feature "-Number of points in a line feature Point list of a line feature 4.5 Contour line file *CON XNYN ZN The contour file only records the information of the contour. The record format of a contour is shown in Table 6. Table 6 Record number of topographic map elements Image pair number Elevation of contour Is the dike closed (yes/no) Number of points of a contour Point list of a contour 4.6 Annotation file*ANN GB/T 17158-1997 Table 6 (end) Topographic map element annotation file records the map position, font size, font and other information of all text and digital annotations in this map sheet. The recording format of the annotation content is shown in Table ?. Topographic map element record number Image pair number The coordinates of the lower left corner of the th character in this annotation content point to Digital elevation model file *DEM Annotation content string This file is an optional file. The recording format of a complete digital elevation model data file in this map is shown in Table 8. Table 8 Gaussian coordinates and elevation of the model starting point XYZ Maximum elevation value in the model Minimum elevation value in the model Scan line orientation Scanning method (one-way/ Bidirectional) Starting point scanning direction Scanning spacing (M) Vertical number of columns Horizontal number of rows 4.8 Data quality evaluation file *EST The record format of the data quality evaluation file is shown in Table 9. 331 Acceptance unit Acceptor's name Acceptance date Element plane mean error (m) GB/T17158-1997 Element elevation mean error (m) Map edge mean error (m) Quality level According to the data recording format of Tables 2 to 9, the example of 1:50000 photogrammetry digital mapping data record is shown in Appendix A (suggested appendix). GB/T 17158---1997 Appendix A (Suggested Appendix) 1:50000 Example of Photogrammetry Digital Mapping Data Record Assume that the drawing number of this record is H50E009006. E009006 * MAP Administrative region Name of surveying unit Name of surveyor Name of graphic editor Model of surveying instrument Name of plane coordinate system Name of elevation system Name of topographic map element classification and code standard Camera model Aerial photography period Aerial photography scale Mapping scale Drawing time Current data deadline Coordinate belt number||t t||Gaussian coordinates X of the lower left corner outline point Gaussian coordinates X of the upper left corner gallery point Gaussian coordinates X of the upper right corner gallery point Gaussian coordinates X of the lower left corner outline point Geographical coordinates L of the lower left corner gallery point Geographical coordinates L of the upper right corner gallery point Theoretical side length of outline point H50E009006 Fangshan City Shaanxi Province The Eighth Surveying and Mapping Brigade of Shaanxi Province Zhou Xiaohong JX-3 92013 1980Xi'an Coordinate System 1985National Height Datum 1:5000, 1:10000, 1:25000, 1:500001:100000Topographic Map Element Classification and Code (GB/T 15660----1995) RC-038 1:61000 1150000 3276904.2 20331986.3 3395385.8 20332273.6 3395039.1 20356237.4|| tt||3276558.6 20355991,2 115°15'00\ 30°30°00\ 115°30'00\ 30°40°00\ Mean meridian convergence angle Magnetic declination Contour interval Total number of control points in the map Control point name (No.) Control point level Control point Gaussian coordinate X Control point elevation Eastern neighboring map sheet number Border situation Southeastern neighboring map sheet number Border situation Southern neighboring map sheet number Border situation Southwest neighboring map sheet number Border situation West neighboring map sheet number Border situation|| tt||Nwest neighboring map sheet number Border situation Northern neighboring map sheet number Border situation Northeastern neighboring map sheet number Border situation Number of surveys Survey unit Survey date Camera model Aerial photography date Aerial photography scale End of MAP file E009 006 * POR Route number Image pair number Number of points participating in image pair orientation Standard position 3 point number Gaussian coordinates X of 3 points Orientation residual AX of 3 points GB/T 17158 0°49'37\ +12°12' Fangshan triangulation point 3384361.2 20340071.0 E009 007 Connected edge E010007 Connected edge E010006 Connected E010005 Connected edge E009005 Unconnected edge E008 005 Unconnected edge E008 006 Connected edge E008007 Connected edge 52775278 3384873.1 20349488.8 Point number of 4 points in standard position Gaussian coordinates X of 4 points Orientation residual AX of 4 points Meanwhile orientation error of this image pair in plane Meanwhile orientation error of this image pair in elevation End of POR file E009006* PO1 Topographic map feature record number Image pair number Number of feature classification items Classification code Gaussian coordinate X Pointing coordinate X Topographic map feature record number Image pair number Number of feature classification items Classification code 1 Classification code 2 Gaussian coordinate X Pointing coordinate X End of POI file E009006 * LIN Topographic map feature record number Image pair number Number of feature classification items Classification code Is it closed ·Length of line element GB/T 17158 -- 1997 |3 20349238.1 3386281.1 20349265.5 5277-5278 Number of points in the line element Gaussian coordinates X of each point in sequence Gaussian coordinates X of each point in sequence Gaussian coordinates X of each point in sequence Gaussian coordinates X of each point in sequence Topographic map element record number Image pair number Number of element classification items Classification code 1 Classification code 2 Is it closed|| tt||The length of a line feature The number of points in a line feature The Gaussian coordinates X of each point in sequence The Gaussian coordinates X of each point in sequence The Gaussian coordinates X of each point in sequence The record number of topographic map feature Image pair number The number of feature classification items Classification code Is it closed The length of a line feature The number of points in a line feature The Gaussian coordinates X of each point in sequence The Gaussian coordinates X of each point in sequence 8-1997 GB/T 17158 3378113.9 20340246.0 3379038.1 20340245.8 3379030.4 20340717.0 3378113.7 20 348717.7 5277--5278 3379134.0| | tt | 3377682.7 Gaussian coordinates X of each point in sequence LIN End of file E009006 * CON Topographic map request record number Image pair number Elevation of contour line Is it closed Number of points on contour line Gaussian coordinate X of each point in sequence, Gaussian coordinate X of each point in sequence Gaussian coordinate X of each point in sequence: Topographic map element record number Image pair number Elevation of contour line Is it closed Number of points on contour line Gaussian coordinate X of each point in sequence Gaussian coordinate X of each point in sequence2 Gaussian coordinate X of each point in sequence: CONEnd of file E009006 * ANN Topographic map element record number Image pair number Lower left corner coordinate X of the th character GB/T 171581997 20340907.7 3377625.1 20340957.0 3377355.5 20340227.5 3377443.1 20340207.1 3377522.9 20340186.6 5277-527 8 3378685.0 20347783.7 3378767.1 20347769.9 3378879.6 20347757.1 —9999 52775278||t t||3380784.7 20339212.1 0°00'00\ Tip: This standard content only shows part of the intercepted content of the complete standard. 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