1、 MIL-V-89033 = 9999906 2006702 927 MIL-V-89033 1 June 1995 MILITARY SPECIFICATION VECTOR SMART MAP (VMap) Level 1 ! This specification is approved for use by all Departments and Agencie8 of the Department of Defense. 4 1. SCOPE 1.1 m. This military specification defines the content distribution is u
2、nlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-89033 2. APPLICABLE DOCUMENTS 2.1 Genera. The documents listed in this section are needed to meet the requirements specified in sections 3, 4, and 5 of this specification. other sections
3、 of this specification or recommended for additional information as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all requirements documents cited in sections 3, 4, and 5 of this specification, whether or not they
4、 are listed. This section does not include documents cited in il 2.2 -documente. a 2.2.1 SDec ifications. Sta n dards. and ha ndbooks . The following specifications, standards, and handbooks form a part of this * document to the extent specified herein. Unless otherwise specified, the issues of thes
5、e documents are those listed in the current Department of Defense index of Specifications and Standards (DoDISS) and the supplement thereto, cited in the solicitation (see 6.2). MILITARY STANDARDS MIL-STD-600001 - Mapping, Charting i Geodesy Accuracy MIL-STD-2407 - Vector Product Format MIL-STD-2414
6、 -*DMA Stock Number Bar Coding Standard MIL-STD-129M - Marking for Shipment and Storage SPECIFICATIONS MIL-J-89100 - Joint Operations Graphics - Air for digital products, such as VMap Level 1, accuracy is expressed in ground distances. The following shows the ground distance horizontal accuracy cate
7、gories for VMap Level 1 product resolution based on 1:250,000 map scale source. Class Wax, Level 1 CE 125 m 250 m 500 m 500 m 3.2.2 Abso lute ve rtical accuracv . This represents the difference between an assigned elevation and the true elevation at a specific point. in this comparison, both elevati
8、ons must be referenced to MSL. interpolation of the digital contour file or it may be listed as a vertex coordinate of a feature. A points elevation may be determined through Vertical accuracy is expressed at 90 percent probability (.9p) linear error as a proportion of the contour interval. followin
9、g lists the vertical accuracy categories: The Class (Contour interval) 1 0.5 2 1.0 3 2.0 4 2. o e 3.2.3 pelative accuracv . DMA does not have a formal relative accuracy objective for this product. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3
10、 Datum. 3.3.1 Horizontal datu m. The horizontal datum for this VMap product shall be WGS84 as identified in DMA TR 8350.2. 3.3.2 ye rtical datu m. The vertical datum for this VMap product shall be mean sea level (MSL). 3.4 pata de nsitv leve 1s. a. VMap Level 1 data are collected at a density of det
11、ail that approximates that of DMA Standard medium scale products. b. Based on its data collection density, if VMap Level 1 data are to be output in hard-copy form, the appropriate scale for this output is at 1:250,000. 3.5 Database sou rce a nd extent. The geographic extent of the VMap Level 1 produ
12、ct is global and consists of multiple regional databases. are derived from the feature content defined in the associated military specification. VMap Level 1 data from standard DMA source products 3.6 Co ntinuitv. All VMap Level 1 data are subject to the inclusion conditions specified in Appendix F.
13、 a. Each VMap database shall be organized into VPF libraries such that a seamless product is produced where data are present. Data gaps between a VMap Level 1 library may exist due to absence of data. the libraries of this VMap database. No data overlap may exist in b. Where data collection procedur
14、es require individual source sheets, digital files or other media to be combined, features crossing source boundaries shall be continuous whenever possible. Exceptions to this rule occur when more current source data are used and the feature position or presence has changed, or a mismatch occurs due
15、 to different specifications of the incorporated source data. In these cases, a discontinuity along a source boundary shall occur and be documented in the Data Quality coverage. 3.7 Thematic laver oraanization. VMap Level 1 products are There are two organized into thematic layers. stored as a singl
16、e coverage within a VPF library. reference coverages and ten thematic coverages in the data library level (TABLE l), and one reference coverage and three thematic coverages in the reference library (TABLE 1). Each VMap thematic layer is 5 Provided by IHSNot for ResaleNo reproduction or networking pe
17、rmitted without license from IHS-,-,-MIL-V-9033 m qqqqq0b 2006707 409 m MIL-V-89033 TABLE 1. VMaD Cove raues bv VPF st ructure level. VPF Structure Level Reference Library I Data Libraries VMap Coverages (Thematic Layers) Library Reference Database Reference Political Entities Place Names Library Re
18、ference Tile Reference Boundaries Data Quality Ei evat ion Hydrography Industry Physiography Population Transportation Utilities Vegetation Coverage Directory) Name LIBREF DBREF POLBND PLACENAM LIBREF TILEREF BND DQ ELEV HYDRO IND PHYS POP TRANS UTIL VEG 3.8 Dimensions. 3.8.1 Unit of measu re. The u
19、nit of measure for VMap is metric. 3.8.2 Minimum sizes. The minimum size of features collected from source materials shall be in conformance with the portrayal criteria and data dictionary provided in Appendix F. The minimum feature size captured from the source materials may be subject to hardware
20、limitations at the time of collection. Features may be captured as points, nodes, lines, or areas. Text or annotation may also be captured with minimum point size determined in related attribute tables to each text feature table. 3.9 Featu re and att ribute cod ing sc heme. map Level 1 implements th
21、e Digital Geographic Information Exchange Standard (DIGEST) Feature Attribute Coding Catalog (FACC). See Appendix F for a listing of the FACC feature codes and attribute codes allowable for VMap Level 1 thematic files. a. Unknown. not am licable and nul 1 values. In cases where FACC does not assign
22、an unknown or null attribute value, and one is required to populate a field, refer to data dictionary tables in Appendix F for the appropriate unknown and null value for the attribute column. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-89
23、033 m 9999906 2006708 345 m MIL-V-89033 (1) Unknown valiie CO ndition. The FACC system supports the use of an attribute value which signifies an “unknown“ condition. Generally, with few exceptions, FACC implements a value of O to represent an unknown data condition for integer values. For text data
24、types, the field will contain the characters “UNK“. During data capture, it may not be possible to determine the value of an attribute using the inclusion conditions or collateral data sources. When FACC provides an attribute value to support the “unknown“ condition, it must be used. In cases where
25、the “0“ value is already used to represent a valid number, an alternative value is needed to represent the unknown condition. These values may be found in Appendix F. (2) Not am licable CO ndition. In some cases a FACC attribute contains a value for a “Not applicableii condition. “Unknown“. For exam
26、ple, the FACC Building feature, AL015, contains the attribute House of Worship Type (HWT). If the building has a Building Function Category attribute value (BFC) that is not equal to House of Worship (i.e., 71, then the HWT attribute value 22 is entered for the feature indicating the “Not Applicable
27、“ condition. This condition is not the same as having an unknown building feature type. This does not have the same meaning as (3) Nu 11 value CO ndition. Some features classes may have attribute columns present in the feature table that are defined for some features, but not others. in this case a
28、null value is entered for those attribute values when they do not apply to the feature code. standard for implementing the null value for FACC utilizes the VPF-defined null. The VMap For map Level 1 derived from a source that does not support vertical elevation, vertical (elevation) values shall be
29、populated with the VPF null (NaN), as defined in MIL-STD-2407, section 5.5.2, unless an elevation value is provided in the source material. 3.10 coo rdinate svste m. map data shall be stored in decimal degrees as geographic coordinates with southern and western hemispheres having a negative sign for
30、 latitude and longitude, respectively. the geographic location of tiles. geographic coordinates should be stored to the equivalent precision of 0.02 arc-seconds or 0.000005 decimal degrees. The GEOREF reference system is used to represent The horizontal resolution for 7 Provided by IHSNot for Resale
31、No reproduction or networking permitted without license from IHS-,-,-MIL-V-89033 3.11 Data format. VMap Level 1 will be produced in Vector Product Format (VPF), which provides a standard format for storing digital vector cartographic data. Refer to the VPF military standard (MIL-STD-2407) for more d
32、etail on VPF format and structure. This specification provides guidance for the specific implementation of VMap Level 1 in VPF. *. 3.12 Database descrintio n. Each VMap database is a vector- based product implemented in VPF. This product is designed to support Geographic Information System (GIS) app
33、lications with geographic data at medium resolution. Data at this resolution are separated into 10 thematic layers, where each layer contains thematically consistent data. The VMap thematic layers are organized into coverages contained in VPF libraries (see TABLE 1). The VMap database also contains
34、a reference library containing generalized data coverages to orient the user to the database. Each coverage contains a set of files that describe the features in that thematic layer. a O 3.12.1 File st ructu re. map Level 1 data shall utilize the standard Disk Operating System (DOS) directory struct
35、ure as specified in the VPF Military Standard. 3.12.2 Distribut ion medium. VMap will be distributed on CD- ROM disc implementing IS0 9660 for CD-ROM formatting. Multiple libraries may exist on one CD-ROM. Each library will be fully contained on a single disc. 3.13 VPF tab le and file st ruc tu re.
36、Three types of VPF files are implemented in this VMap database: directories, tables, and indexes. 3.13.1 pirecto ries. All VMap Level 1 database files and tables are contained in a hierarchy of system-level directories in accordance with the VPF standard. Contained within these directories are the t
37、ables and indexes that provide information about the database. 3.13.2 VPF tab les. Each directory within a VMap Level 1 database contains VPF tables as defined in the VPF Military Standard (MIL-STD-2407). FIGURE 1 illustrates the content of VPF tables. 3.13.3 3.J . The VMap Level 1 product contains
38、four types of indices: spatial indices, thematic indices, variable-length indices, and feature index tables. Spatial indices will be defined for all primitive tables. The structure and format of indices are defined in MIL-STD-2407. A nominal bucket size of 8 shall be used for the creation of spatial
39、 indexes. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - MIL-V-89033 W 9999706 2006730 TT3 # MIL-V-89033 r Value description table (dash when not applicable) Table Documentation (L, M, or blank) (dash when no file column format: present) Themat
40、ic index file (dash when not applicable) Data type, number of elements, description COlWnn key type column description Documencation file name I ildach when no file present1 + (Header Length; ) c (Table Description, Documentation Table) (Column Definition) CHAR.VDT,F-CODEi.PTI,-, : (Column cefinitio
41、n) ARA = I,l,N, Area Coverage Attribute, -,-,-,: L (column Definition) EXS = s.1. existence Category, 1NT.m. -, - , : (Column Definition) LMC = S,l,N, Landmark Category, 1NT.m. -, -, : (Column Definition) (Column Definition) MIN = s,i,N, Mining category. 1NT.m,-.-,: NAM = T,*,N. Name Category, n I I
42、. (Column Definition) (Column Definition) PRO = S,l.N, Product Category, INT.W,-,-,: TILE-ID = S,l,N, Tile identifier, - ,TILEI-ID. PTI, -, : (Column Definition) END-ID = I, 1.U, Entity node foreign key, -,END2-ID.PTx, -, :; (Column Definition) Point Feature Table v _. = I.1,P. ROW identifier, I , ,
43、. Header 1 1A010 O O 1 O Bloomer Well No 1 O i 1 2 1A010 O O 1 O o1 3 3 1A030 O O O O o2 9 4 1A010 O O O O 21 . . . . . . n n nnn n n nn Table records n C (Record 1) (Record 2) (Record 3) (Record 41 PRO TILE-ID ENI-ID - Defined column names FIGURE 1. IlluSt ration of a VPF tab le. NOTES : 1. This is
44、 an example of a VMap Level 1 feature table. 2. The VPF tables defined in this specification shall include all 3. Spaces are not a part of the header and are shown or clarity. columns specified. 3.14 Wax, d irectow o reanization. 3.14.1 Reeional databases . map Level 1 consists of four regional data
45、base(s1. Each CD-ROM shall contain a single database directory and two or more library directories including one reference library and at least one data library. The database header and library attribute tables shall be duplicated for each CD-ROM within a regional database area. Each data library co
46、ntains a mix of reference coverages and thematic coverages. The VPF structure levels and VMap Level 1 implementation are depicted in FIGURE 2. 3.14.2 Thematic cove rau= . The VMap reference library directory (RFERENCE) shall contain three thematic coverage directories. These coverages are not tiled.
47、 map data library directories shall contain up to ten thematic coverage directories. Library directory names reflect the geographic content of the library and will be provided to the producer as part of the source package. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
48、t license from IHS-,-,-MIL-V-89033 = 9999906 20067LL 93T MIL-V-89033 D STRUCTURE LEVEL IMPLEMENTATION u I VMap LEVEL 1 DATABASE LIBRARY ? REFERENCE , , TJT)TTT COVERAGES COVERAGES COVERAGE COVERAGES )- FEATURE TABLES FEATURE TABLEs FEATURE TABLES FEATURE TABLES FEATURE FIGURE 2. VPF structu re level
49、s and VMap imDlementation. 3.14.3 Tiling. map thematic data at the VPF coverage level in each data library are tiled in order to manage the large amounts of data. Therefore, primitive files are stored in a hierarchy of tile directories under each VPF coverage directory. 3 -15 VPF structu re levels, tables, a nd files. The following sections present the tables and files according to VPF structure level. The structure levels
