1、NOTE: Notice 2, dated 17 February 1996, changes the cover page of this standard for administrative reasons. There are no other changes to this document. MIL-STD-1821 17 June 1993 DEPARTMENT OF DEFENSE INTERFACE STANDARD FOR STANDARD SIMULATOR DATA BASE (SSDB) INTERCHANGE FORMAT (SF) AMSC N/A DISTRIB
2、UTION STATEMENT A. Approved for public release; distribution is unlimited. Supersedes cover page of MIL-STD-1821, dated 17 June 1993 FSG 69GP Licensed by Information Handling ServicesNOTICE OF CHANGE MIL-STD-1821 NOTICE 2 17 February1 996 DEPARTMENT OF DEFENSE INTERFACE STANDARD FOR STANDARD SIMULAT
3、OR DATA BASE (SSDB) INTERCHANGE FORMAT (SIF) TO ALL HOLDERS OF MIL-STD-1821: 1. THE FOLLOWING PAGES OF MIL-STD-1821 HAVE BEEN REVISED AND SUPERSEDE THE PAGES LISTED: NEW PAGE DATE SUPERSEDED PAGE DATE Cover Page 17 February 1996 Cover Page 17 June 1993 ii 17 February 1996 ii 17 June 1993 2. RETAIN T
4、HIS NOTICE AND INSERT BEFORE TABLE OF CONTENTS. 3. Holders of MlL-STD-1821 will verify that page changes and additions indicated above have been entered. This notice page will be retained as a check sheet. This issuance, together with appended pages, is a separate publication. Each notice is to be r
5、etained by stocking points until the military standard is completely revised or cancelled. Custodians: Army - PT Navy - TD Preparing activity: Air Force - 11 AMSC: N/A FSG: 69GP DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling Service
6、sMIL-STD-LBZL CHG NOTICE L m 9999933 0473667 818 m CHANGE SENSITIVE MIL-STD- 1 82 1 NOTICE I 17 April 1994 MILITARY STANDARD STANDARD SIMULATOR DATA BASE (SSDB) INTERCHANGE FORMAT (SIF) DESIGN STANDARD TO ALL HOLDERS OF MIL-STD-182 1 : 1. THE FOLLOWING PAGES OF MIL-STD-1821 HAVE BEEN REVISED AND SUP
7、ERSEDE THE PAGES LISTED: NEW PAGE 21 22 29 30 35 36 - 49 50 73 74 A-5 A-6 A-15 A-16 A-2 1 A-22 A-22db A-23 A-24 A-24db A-29 A-30 A-37 A-3 8 A-39 A-40 A-49 A-50 A-6 1 A-42 A-7 1 A-72 AMSC: N/A DATE SUPERSEDED PAGE DATE 17 April 1994 17June 1993 17 April I994 17June 1993 17June 1993 17 April 1994 17Ju
8、ne 1993 17 April 1994 17 June 1993 17 April 1994 17 April 1994 17June 1993 17 April 1994 17June 1993 , 17June 1993 17 April 1994 17 April 1994 17June 1993 17 April 1994 17 April 1994 17 April 1994 17June 1993 17June 1993 17 April 1994 17 April 1994 17June 1993 17June1993 17 April 1994 17June 1993 17
9、 April 1994 17 April 1994 17June 1993 21 29 - - 34 50 74 A-5 - - - - A-1 5 - - A-22 New Page - A-24 New Page A-29 - - A-3 8 A-39 - - A-50 - A-42 A-7 1 - 17June 1993 REPRINTED WITHOUT CHANGE 17 June 1993 REPRINTED WITHOUT CHANGE REPRINTED WITHOUT CHANGE 17 June 1993 REPRINTED WITHOUT CHANGE 17June 19
10、93 REPRINTED WITHOUT CHANGE 17 June 1993 17 June 1993 REPRINTED WITHOUT CHANGE 17June 1993 REPRINTED WITHOUT CHANGE REPRINTED WITHOUT CHANGE 17June 1993 REPRINTED WITHOUT CHANGE 17June 1993 17 June 1993 REPRINTED WITHOUT CHANGE REPRINTED WITHOUT CHANGE 17 June 1993 17 June 1993 REPRINTED WITHOUT CHA
11、NGE REPRINTED WITHOUT CHANGE 17 June 1993 REPRINTED WITHOUT CHANGE 17 June 1993 17 June 1993 REPRINTED WITHOUT CHANGE - - FSG 69GP DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesMIL-STD- 1 82 1 NOTICE 1 17 April 1994 2. RETA
12、IN THIS NOTICE AND INSERT BEFORE TABLE OF CONTENTS. 3. Holders of MIL-STD-1821 will verify that page changes and additions indicated above have been entered. This notice page will be retained as a check sheet. This issuance, together with appended pages, is a separate publication. Each notice is to
13、be retained by stocking points until the military standard is completely revised or cancelled. 4. Changes from previous issue. The margins of this Change Notice are marked with bars to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This w
14、as done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the las
15、t previous issue. Custodians: Army - PT Navy - TD Air Force - 11 Preparing activity: Air Force - 1 1 Project number 69GP-0 129 2 Licensed by Information Handling ServicesMlL-STD-1821 NOTICE 2 DEPARTMENT OF DEFENSE Washington DC 20360 STANDARD SIMULATOR DATA BASE (SSDB) INTERCHANGE FORMAT (SIF) l. Th
16、is standard is approved for use by all Departments and Agencies of the Department of Defense. 2. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: ASC/ENSI, Bldg 125, 2335 Seventh Street, Suite 6,
17、 Wright-Patterson AFB OH 45433-7809 by using the Standardization Document Improvement Proposal (OD Form 1426) appearing at the end of this document or by letter. Supersedes page ii of MlL-STD-1821, dated 17 June 1993. ii Licensed by Information Handling ServicesFOREWORD 1. The purpose of this standa
18、rd is to define the Standard Simulator Data Base (SSDB) Interchange Format (SIF). 2. The Standard Simulator Data Base (SSDB) is the central repository of validated simulator databases for the DoD training simulation community. The SSDB was developed under an Air Force program called Project 2851 (co
19、ntract F33657-86-C-0182). Tri-Service coordination has been maintained via the Joint Technical Coordinating Group for Training Systems and Devices (JTCG-TSD). The SSDB will be maintained at the DoD Simulator Data Base Facility (SDBF). 3. The SIF will serve as an input/output vehicle for sharing digi
20、tal simulator databases via the SSDB. Database builders may be tasked to supply their databases to the SDBF in this format. The SDBF would then be responsible for integrating the databases into the SSDB, from which data may later be extracted for use by other simulator systems, in either SIF or Gene
21、ric Transformed Data Base (GTDB) format. This will allow the Government to re-use databases created for specific simulation programs. 4. This standard defines two different versions of SIF, in order to support two different scenarios for sharing of SSDB data. In one form, the SSDB can be made availa
22、ble in its complex internal system-specific format to support distributed maintenance by SDBF-compatible data base systems, or to support autonomous but SSDB-compatible data base production by training system programs. In SIFs other form, there will be a mechanism for passing the essential contents
23、of simulator data bases, including the SSDB, for use or maintenance on systems with significantly different software than the SDBF. The “SSDB Interchange Format for Distributed Processing (SIF/DP)“ has been defined to handle the first situation, while the “SSDB Interchange Format for High Detail Inp
24、ut/Output (SIF/HDI)“ has been defined for the second. 5. The two SIF formats, SIF/DP and SIF/HDI, are logically identical but differ in physical format. Use of one format where the other would be more appropriate is likely to cause the implementing program to incur unnecessary costs. It is therefore
25、 important that the SIF user possess an understanding of the distinction between the two alternatives, before specifying either for use. 6. When it is required that a simulator program receive database inputs from the SDBF, a third format may be used. This third format designated the Generic Transfo
26、rmed Data Base (GTDB), is documented in MIL-STD-1820. The GTDB is strickly an output product format of the SDBF and is a more thoroughly processed database than SIF. It is capable of supporting a much greater range of data selection and formatting options than either SIF/HDI or SIF/DP. GTDB should b
27、e considered for use instead of SIF when the receiving system wishes to minimize post- processing of the data. iii Licensed by Information Handling ServicesPARAGRAPH 1 . 1.1 1.2 1.3 1.4 1.5 2 2.1 2.1.1 2.1.2 2.2 2.3 3 3.1 3.2 4 4.1 4.2 4.2.1 4.2.1.1 4.2.1.2 4.2.2 4.3 4.3.1 4.3.1.1 4.3.2 4.3.2.1 4.3.
28、2.1.1 4.3.2.1.2 4.3.2.2 4.3.2.2.1 4.3.2.2.2 4.3.2.3 4.3.3 4.3.3.1 4.3.3.1.1 4.3.3.1.2 4.3.3.1.3 4.3.3.2 4.3.3.2.1 4.3.3.2.2 4.3.4 4.3.4.1 4.3.4.2 4.3.4.3 4.3.4.4 4.3.5 4.3.6 MIL-STD-1821 9979933 O434642 732 m MIL-STD-1821 CONTENTS SCOPE 1 Scope 1 Applicability 1 Application guidance . 1 Tailoring of
29、 requirement descriptions 2 Method of reference 2 APPLICABLE DOCUMENTS . 2 Government documents . 2 Specifications. standards. and handbooks . 2 Other Government documents. drawings. and publications . 2 Non-Government publications 3 Order of precedence 4 DEFINITIONS AND ACRONYMS . 4 Definitions 4 A
30、cronyms . 8 GENERAL REQUIREMENTS 10 Physical medium . 10 Physical tape labeling 10 Transmittal ID 10 Originator codes 10 Transmittal form 11 Quality assurance . 11 General approach 11 Responsibility for test . 11 Process certification . 11 Format conformance 11 Format conformance producer . 11 Forma
31、t conformance consumer . 13 Source correlation 13 Source correlation producer . 13 Source correlation consumer . 13 SSDB compatibility 13 Data set verification . 13 Verification of SIF product . 13 Format conformance 14 Source correlation 14 SSDB compatibility 14 Verification of SIF application . 14
32、 Accommodation . 14 Utilization . 14 Tools and test data . 14 Government-furnished tools 14 Contractor-developed tools 14 Government-furnished test data sets . 15 Contractor-developed test data sets . 15 Test documentation 15 Exceptions 15 External system interface . 10 iv Licensed by Information Ha
33、ndling ServicesPARAGRAPH 4.4 4.4.1 4.4.2 4.4.3 4.4.4 4.4.5 4.4.6 5 5.1 5.1.1 5.1.1.1 5.1.1.1.1 5.1.1.1.2 5.1.1.1.3 5.1.1.2 5.1.1.2.1 5.1.1.2.2 5.1.1.2.3 5.1.2 5.1.2.1 5.1.2.1.1 5.1.2.1.2 5.1.2.1.3 5.1.2.1.3.1 5.1.2.1.3.2 5.1.2.1.3.3 5.1.2.1.3.4 5.1.2.1.3.5 5.1.2.1.3.6 5.1.2.1.3.7 5.1.2.1.3.8 5.1.2.1
34、.3.9 5.1.2.1.3.10 5.1.2.1.3.11 5.1.2.1.3.12 5.1.2.1.3.13 5.1.2.1.3.14 5.1.2.1.3.15 5.1.2.1.3.16 5.1.2.1.3.17 5.1.2.1.3.18 5.1.2.1.3.19 5.1.2.1.3.20 5.1.2.1.3.21 5.1.2.1.3.22 5.1.2.2 5.1.2.2.1 5.1.2.2.1.1 CONTENTS Documentation . 15 Application . 15 Training utility 15 Content . 15 Indigenous standar
35、ds 15 Transormation . 15 Utilization instructions 16 DETAILED REQUIREMENTS . 16 Standard Simulator Data Base Interchange Format (SIF) SIF/HDI data base structure 16 Logical format 16 Data base . 16 Section . 16 File/record/field/it em 16 Physical format . 16 Data order 16 Physical tape format 17 Gen
36、eral file and data formats . 18 SIF/HDI File formats . 18 SIF/HDI Data Base Header File format . 18 Header data encoding 18 Header section structure 18 Header file structure . 18 SIF File Identifier Record 21 /High Detail Input/Output (HDI) Data Base 16 Transmittal Description Record 21 Data Directo
37、ry Record . 21 Two-dimensional (2D) Static Model Library Header File Name Record 21 2D Static Model Entry Record 22 Three-dimensional (3D) Static Model Entry Record 22 3D Static Model Entry Record 22 3D Dynamic Model Entry Record . 23 Model Table File Name Record 23 Culture Header File Name Record .
38、 23 3D Dynamic Model Library Header File Name Record 22 Culture Tile Entry Record . 24 NITF Header File Name Record 24 Terrain Tile Entry Record . 24 Generic Texture Entry Record 25 Stage 3 Specific Model Texture Entry Record . 25 Stage 2 Specific Model Texture Entry Record . 26 Stage 1 Specific Mod
39、el Texture Entry Record . 26 Stage 3 Specific Areal Texture Entry Record . 27 Stage 1 Specific Areal Texture Entry Record . 28 Stage 2 Specific Areal Texture Entry Record . 27 SMC/FDC Texture Entry Record 28 Model data . 29 Model data encoding . 29 Model building standards 29 V Licensed by Informati
40、on Handling ServicesCONTENTS PARAGRAPH 5.1.2.2.2 5.1.2.2.2.1 5.1.2.2.2.2 5.1.2.2.3 5.1.2.2.3.1 5.1.2.2.3.1.1 5.1.2.2.3.1.2 5.1.2.2.3.2 5.1.2.2.3.2.1 5.1.2.2.3.2.2 5.1.2.2.3.2.2.1 5.1.2.2.3.2.3 5.1.2.2.3.2.4 5.1.2.2.3.2.5 5.1.2.2.3.2.6 5.1.2.2.3.2.7 5.1.2.2i3.2.7.1 5.1.2.2.3.2.8 5.1.2.2.3.2.9 5.1.2.2
41、.3.2.10 5.1.2.2.3.2.11 5.1.2.2.3.2.12 5.1.2.2.3.2.13 5.1.2.2.3.2.14 5.1.2.2.3.2.15 5.1.2.2.3.2.16 5.1.2.2.3.2.17 5.1.2.2.3.2.18 5.1.2.2.3.2.19 5.1.2.2.3.2.20 5.1.2.2.3.2.21 5.1.2.2.3.3 5.1.2.2.3.3.1 5.1.2.2.3.4 5.1.2.2.3.4.1 5.1.2.2.3.4.2 5.1.2.2.3.4.3 5.1.2.2.3.5 5.1.2.2.3.5.1 5.1.2.2.3.5.2 5.1.2.2
42、.3.5.3 5.1.2.2.3.5.3.1 5.1.2.2.3.5.3.2 5.1.2.2.3.6 5.1.2.2.3.6.1 5.1.2.2.3.6.2 5.1.2.2.3.6.3 5.1.2.2.3.7 5.1.2.2.3.7.1 5.1.2.2.3.7.2 5.1.2.2.3.7.3 Model section structure . 29 Field format 30 Section format 30 Mode l. file structures . 30 Model Library Header File . 30 SIF File Identifier Record 30
43、Model Library Header Record . 30 Model Data File . 32 SIF File Identifier Record 34 Model Header Record . 34 Data Source Table Pointer List Subrecord 34 LOD Header Record . 35 Model Cluster Statistics Record . 35 Separation Plane Record . 35 Subsidiary Model Reference Record . 36 Point Light String
44、Record . 36 Point Light Positions Subrecord . 36 Collision Test Point Record . 36 Initial Graphics Exchange Specification (IGES) Start Record . 37 IGES Records 37 Polygonization Instruction Record . 37 Component Header Record . 37 Model Microdescriptor Record 38 Component Texture Reference Pointer R
45、ecord 38 Vertex Pointer Record . 39 Vertex Color Record . 39 Polygon Microdescriptor Record 39 Polygon Texture Reference Pointer Record 39 Vertex Table File . 39 Vertex Record . 40 Data Source Table File 40 SIF File Identifier Record 40 Data Source Table Header Record . 40 Data Source Table Entry Re
46、cord 40 FACS Table File . 41 SIF File Identifier Record 41 FACS Table Header Record 41 FACS Table Entry Record . 41 FACS Attribute Subrecord 41 FACS Application 42 User-Defined FACS Table File 43 SIF File Identifier Record 43 User-Defined FACS Table Header Record . 43 User-Defined FACS Table Entry R
47、ecord 43 Color Table File 43 SIF File Identifier Record 43 Color Table Header Record . 43 Color Table Entry Record 44 Model LOD Texture Reference Pointer Record 37 Polygon Header Record . 38 Vertex Normal Record 39 vi Licensed by Information Handling ServicesMIL-STD-1821 7799911 0434b45 441 m . MIL-
48、STD-1821 CONTENTS PARAGRAPH PAGE 5.1.2.2.3.8 5.1.2.2.3.8.1 5.1.2.2.3.8.2 5.1.2.2.3.8.3 5.1.2.2.3.9 5.1.2.2.3.9.1 5.1.2.2.3.9.2 5.1.2.2.3.9.3 5.1.2.2.3.9.3.1 5.1.2.2.3.10 5.1.2.2.3.10.1 5.1.2.2.3.10.2 5.1.2.2.3.10.3 5.1.2.2.3.11 5.1.2.2.3.11.1 5.1.2.2.3.11.2 5.1.2.2.3.11.3 5.1.2.3 5.1.2.3.1 5.1.2.3.1
49、.1 5.1.2.3.1.1.1 5.1.2.3.1.1.2 5.1.2.3.1.1.3 5.1.2.3.1.1.4 5.1.2.3.1.1.5 5.1.2.3.1.1.6 5.1.2.3.1.1.7 5.1.2.3.1.1.8 5.1.2.3.1.1.9 5.1.2.3.1.1.10 5.1.2.3.1.1.11 5.1.2.3.1.1.12 5.1.2.3.1.2 5.1.2.3.1.2.1 5.1.2.3.1.2.2 5.1.2.3.1.2.3 5.1.2.3.1.2.4 5.1.2.3.1.2.5 5.1.2.3.1.2.6 5.1.2.3.1.2.7 5.1.2.3.1.2.8 5.1.2.3.1.2.9 5.1.2.3.1.2.10 5.1.2.3.1.2.11 5.1.2.3.1.3 5.1.2.3.1.3.1 5.1.2.3.1.3.2 5.1.2.3.1.3.3 5.1.2.3.1.3.4 5.1.2.3.1.3.5 5.1.2.3.1.3.6 5.1.2.3.1.3.7 5.1.2.3.1.3.8 Face-Based Texture Reference Table File . 44 SIF File Identifier Record 44 Face-Based Texture Reference Table Header Record 44 Face
