1、 METRICMIL-PRF-89038AMENDMENT 228 March 2000 SUPERSEDINGAMENDMENT 127 April 1999PERFORMANCE SPECIFICATIONCompressed Arc Digitized Raster Graphics (CADRG)* This amendment forms part of MIL-PRF-89038, dated 6 October1994, and is approved for use by all Departments and Agencies ofthe Department of Defe
2、nse.PAGE 1* Change address in beneficial comments box to “Director,National Imagery and Mapping Agency, ATTN: Doctrine and ForceDevelopment/DF, Mail Stop P-37, 4600 Sangamore Road, Bethesda, MD20816-5003“.PAGE 2* Change reference in paragraph 2.1.1, STANDARDS, from “MIL-STD-6000010, Department of De
3、fense, DMA Stock Number Bar coding”to “MIL-STD-2414, Standard Practice Bar Coding for Mapping,Charting, and Geodesy Products”.PAGE 4* Change paragraph 2.2, c.ISO/IEC DIS 10777-1990, 4 mm WideMagnetic Tape Cartridge for Information Interchange. to read asfollows: c.ISO/IEC 12247-1993, 3,81 mm - Wide
4、Magnetic TapeCartridge for Information Interchange, Helical Scan recording,DDS format using 60 m and 90 m length tapes.AMSC N/A Page 1 of 9 AREA MCGTDISTRIBUTION STATEMENT A. Approved for public release;distribution unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted witho
5、ut license from IHS-,-,-MIL-PRF-89038AMENDMENT 22PAGE 4 (continued)* Change paragraph 2.2 g. ISO/IEC DIS 10139 to read g. ISO/IEC10149* Change title of paragraph 3.2.1 Accuracy to read 3.2.1Vertical Accuracy* Change title of paragraph 3.2.2 Accuracy to read 3.2.2Horizontal AccuracyPAGE 6* Change par
6、agraph 2.4.2 to read 3.4.2PAGE 9* Change paragraph 3.4.5, subparagraph e. to read as follows:e. legend file(s): (Optional) The legend file(s)contain(s) the tiled image data which represent the legendinformation from the original map series. Only one legend fileis provided for multiple legend files p
7、er distribution volume.Each legend file (see 3.11.2) shall include a header section,location section, compression section, color/grayscalesection, image section, and replacement/update section (onlypresent for replacements and updates).PAGE 37* On Page 37, change paragraph 3.15 CADRG Update Files. F
8、romthe following:3.15 CADRG Update Files. CADRG files are compliant with theRaster Product Format and therefore they contain a configurationcontrol mechanism to support updating. The mechanism exploits thesubframe aspects and the replace/update section of RPF.To avoid redundancy, and because some of
9、 the sections andsubsections with RPF are optional, a CADRG update file does notcontain all of the information that a full CADRG file contains.The following paragraphs detail which sections are necessarywithin the update file and which optional sections are notrecorded.Provided by IHSNot for ResaleN
10、o reproduction or networking permitted without license from IHS-,-,-MIL-PRF-89038AMENDMENT 23PAGE 37 (Continued)To the following:3.15 CADRG Update Files. CADRG update files (also calledDCHUM files) are replacement CADRG files that conform to MIL-STD-2411 (RPF) and MIL-PRF-89038 (CADRG). The in the h
11、eader section of the file will be equal to 2,to indicate that the file is an update. The attribute sectionwill include an entry for the “Chart Update attribute” which willgive information about the edits that have been made to theframe.PAGES 37 and 38DELETE paragraphs 3.15.1 through 3.15.8.PAGE 50*
12、Add new Section 6.7 as follows:6.7 Y2K century logic. For this product, the year isrepresented by a two-character year field. Implementers of thisproduct should use a century logic that is consistent with thefact that the first data set for this product was produced in1994.PAGE 55* On page 55, parag
13、raph 30.3.2, Longitude Equations, formulanumber (11), delete the open parenthesis “(“Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-89038AMENDMENT 24PAGE 63Change TABLE 6. CADRG frame file Typical Sizes. From thefollowing:TABLE 6. CADRG fram
14、e file Typical Sizes.Section Name Full Frame ExampleBytes (% of Total)Partial Frame ExampleBytes (% of Total)headersection52 ( 0.1 %) 52 ( 0.1 %)locationsection286 ( 0.1 %) 286 ( 0.1 %)coveragesection96 ( 0.1 %) 96 ( 0.1 %)compressionsection65610 ( 23 %) 65610 ( 26 %)color/grayscale section1764 ( 1
15、) 1764 ( 1 %)image section 221217 ( 76 %) 184497 ( 73 %)attributesection400 ( 0.2 %) 400 ( 0.2 %)replace/updatesection29 ( 0.1 %) 29 ( 0.1 %)Total 289454 252748Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-89038AMENDMENT 25To the following
16、TABLE 6. CADRG frame file Typical Sizes.Section Name Full Frame ExampleBytes (% of Total)Partial Frame ExampleBytes (% of Total)headersection48 ( 0.1 %) 48 ( 0.1 %)locationsection286 ( 0.1 %) 286 ( 0.1 %)coveragesection96 ( 0.1 %) 96 ( 0.1 %)compressionsection65610 ( 23 %) 65610 ( 26 %)color/graysc
17、ale section1764 ( 1 %) 1764 ( 1 %)image section 221217 ( 76 %) 184497 ( 73 %)attributesection400 ( 0.2 %) 400 ( 0.2 %)replace/updatesection29 ( 0.1 %) 29 ( 0.1 %)Total 289454 252748Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-89038AMENDMEN
18、T 26PAGE 66* Change TABLE 7. CADRG Attributes and Parameters (Concluded)from the following:TABLE 7. CADRG Attributes and Parameters (Concluded).AttributeDescriptionAttrIDParameter Description ParmIDDataType20 Units of Elevation 2 uint:220 Latitude of Elevation 3 real:820 Longitude ofElevation4 real:
19、8Multiple LegendNames21 Legend File Name 1 asci:12Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-89038AMENDMENT 27To the following:TABLE 7. CADRG Attributes and Parameters.AttributeDescriptionAttrIDParameter Description ParmIDDataType20 Unit
20、s of Elevation 2 uint:220 Latitude of Elevation 3 real:820 Longitude ofElevation4 real:8Multiple LegendNames21 Legend File Name 1 asci:12Chart UpdateInformation24 Number of Updates 1 Uint:224 Update Number 2 Uint:224 Update Date 3 asci:824 Number of SubframesImpacted4 Uint:224 List of Subframes 5 va
21、r (seeMIL-STD-2411-1)24 Number of Charactersin Description6 Uint:224 Change Description 7 asci:varContour Interval 25 Contour Interval 1 Uint:225 Units of Measurement 2 Uint:2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-89038AMENDMENT 28PA
22、GE 68 Change paragraph 60.1.6 Latitudinal frames and subframesfrom: 60.1.6 Latitudinal frames and subframes. The numberof latitudinal frames and subframes in a zone for a givenscale can be computed by using the exact poleward andequatorward zone extents and the number of pixels per degreeof latitude
23、 (as calculated in 60.1.5). The number oflatitudinal frames is the difference (in degrees) betweenthe exact poleward zone extent and the exact equatorwardzone extent, multiplied by the number of pixels per degree,and divided by 1536, the number of pixel rows per frame.Multiplying the number of frame
24、 rows by 6 will yield thenumber of subframes for that scale and zone.To the following:60.1.6 Latitudinal frames and subframes. The number oflatitudinal frames and subframes in a zone for a given scale canbe computed by using the exact poleward and equatorward zoneextents and the number of pixels per
25、 degree of latitude (ascalculated in 60.1.5). The number of latitudinal frames is thedifference (in degrees) between the exact poleward zone extentand the exact equatorward zone extent, multiplied by the numberof pixels per degree, and divided by 1536, the number of pixelrows per frame, and rounded
26、to the nearest integer. Multiplyingthe number of frame rows by 6 will yield the number of subframesfor that scale and zone.PAGE 71* Change the TABLE 9. Frame/Subframe Sizes 1:2,000,000 JNCCharts, Zone Number 9,J Polar (X - Y) Subframes value from “30”to “28”.PAGE 73* Change Table 11. Frame/subframe
27、Sizes for 1:500,000 TPCCharts., Zone Number 3,C E-W Pixel Constant value from “327679”to “327680”.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-89038AMENDMENT 29PAGE 75* Change TABLE 13. Frame/subframe Sizes for 1:100,000 TLMCharts. Zone Nu
28、mber 2,B Subframes in Zone (Rows) Latitudinalvalue from “478” to “468”.PAGE 76* Change TABLE 14. Frame/subframe Sizes for 1:50,000 TLMCharts. Zone Number 7,G Subframes (Columns) Longitudinal valuefrom “5734” to “5733” and E-W Pixel Constant value from “1467904”to “1467948”.Custodians: Preparing ActivityArmy - TI NIMA - MPAir Force - 09Navy - NOMarine Corps - MCDISA - DC2 (Project MCGT-0355)Review Activities:Air Force - 33Army - AV, CE2Coast Guard - CGDIA - DIDLA - DHNORAD - USNSA - NSProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
