ENVI基本操作之自定义坐标(精)

1、哩坐标系是以经纬度为单位- ；地理坐标系中有 2个重要 咏体(Spheroid)和大地基前参考椭球与WGS84参考椭球间 售-射和可仅直大冷(3个平移，3个旋转，1个缩 放)，可以用其中3个、4个或者7个参数来描述 它们之间的关系，每个椭球体都对应一个或多 个大地基准面。JR ENVI基本操作之自定义坐标Mi标名称投影类型椭球体基准面m京 5454Gauss Kruger (Transverse Mercator )Krasovsky北京 5454西安 8080Gauss Kruger (Transverse Mercator)IAG75西安 8080北京 5454 坐标系.西安 8080 坐

2、标系实际上指的是我国的两个大 地基准面。椭琢体名称年代长半轴m)短半轴Jm)WGS8419846378137.06356752.31:298.257Krasovsky19406378245.06356863.0仏298 3 IAG-7519756378140.06356755.31:298.257黑俭预处Ml黑俭预处MlMeMe_，坐标系是利用一定的数学把地球表面上的经纬线网到平面上，属于平面坐标数学法则指的是投影类型，壬目前我国普遍采用的是高斯一克吕格投影，在英美国家称为 rjjyi中的坐标定义文件磁箔rlOPlErrrIDLzDrDdLicrs5rj7izzrrjzjp_pr 5文件充-2

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6、nternational. -320.55. - AFG. Krassovsky. T3.-163w切5 Rin El Abd 1979, Interndtionjlt-150, -251. -2Alaska (NAO-27). Clarke 1866. -S. 139, 172 Alaska/Canada HAO-27. Clarke1866, 9. 151f185 Anna 1 Astro 1965. Australian National, -*91. -22. *i35fiRC-1950 ncanvClatke 1880. -1M3. -99. -29*ARC-1969 nean, C

7、larkr 1880, -169. -8. -3tJ0 Ascension Island巧8,Interndtional9-2fi7 107, 52 Astro B Sor .Atoll,. Internationalv11*4, -116,-333 Astro Beacon E. International, 105. 75. -272 Astro Pos 71/4 Inte厂national. -320. 55tJ. -i Australian National.Autralij 199MWGRS 80vU. 0vOahanas (HftO-27), Clarke 1866v-町154,

8、178 Belleuue (IGN).-127. -769, H72Bernuda 1957. CLarke 1866. -73. 213. 29&Bogota Observatory, International. 30Z. 3OU. -3F8 Bukit RirepdhtBcscL 141r-38M, 66U. f8Canp Area Astro, Internatlondlr-1OU -129 239 Canpo Inchausp.Intereatrion田】.-1UR. 136 90 Canada Mean (HAD2Z). Clarke 1866.158. 187Canal

9、Zone (NADZQ. Clarke 1866. Uv125. i?O1 Canton Island 1966r1nterndtionalv298, -3W, -375 Cape9Clarke 1880, -136 -108. -292Cape Canaueral repan. Clarke 1866, -2. 158, 181 Carribean (NAD?r) ).Clarke 1866, -7W152. 178 Carthage. Clarke 188. -263, 6. 31Central Rnerica (NAD2Z), Clarke 1866, 0, 125. 19KChathd

10、R 1971rInternational 175 -38, 113Chua Astro, International, -134. 229. -29Corrego Alegre. InternarionaL. -206 172. -6 Corrego Alegre (Provisional).Internationale-206 1721Ln 1, CoL 1-_ X丿下面就霸丰牟单呼陶?ESlfe眩斶座M瓯羽空伽这就是加进去 的基本面参数datwi. ttPitcairn Astro 679International. 185, 165,片片2 Provisional South Aneri

11、can1956 neanvInternational.- 288. 175, -376Provisional South Ctdledn 19631International, 16, 196. 93Puerto Rico. Clarke 1866. 11. 72. -101Qornoq, International*138. -18VQatar HationaltIntrrndtionalv-128. -283. 22Reseau Geodesiqu? Franchise. GRS 80. A, 0 RoneInternational -225t-65t9SAD-69/BraziltSout

12、h Anerican 1969. -60, -2. W1 Santa Braz,Intemationdl9-203. 1M1rS3 Santo (DOS), Intet-natioridl 178. U2.8勺sapper Hili *43, incerndttonditio zSicily. International 979-88. -135Sierra Leone 1960. WGS 8i. 0. 0e0South Ancrican 1?69 ReanvSouth American 1P&甲.-57. 1恥South Asia, itodiFied Fischer I960. ?

13、9-1fi -26 Southeast Base.Icrernattonal. U99. -2A9. 31山Southuest Base. Internationalv-1PU. 167.-38 lananariue Observatory *25, International. -189. -22 -91Thai/Uiet (Indian), Euerest, 214. 836 363 Tlnbalai 19M. Euerest, -689. fi91, -U5Tokyo nean. Bessel 1841, -148. 507. 685Tristan Astro 1968. Intie厂n

14、ations丄.-632. 438 -609 Unites Arab Enirtr5(Ndhruan), Clarke 1888, -2Wt-156. 381Uiti leuu 1916, Clarke 1880. 51, 391. -36 Wake-Eniwetok-60. Hough. 101 52.-39WGS-72, WGS 72. U. 0. 5WGS-84, WGS 8U. 0, 0. 0YacaretInternational, -1S5 1?1 37ZanderljvInternational.265. 120. -358Beljing-5U.KrasousXy.-U1an-S

15、O.IAG-rS.0.0.0Cut omized lap Project ion DefinitionFile Projccti on OpticasFyojccliou K duliuit Equi dnt nt Coni c X EqxudislutCQXUCB EqTurQCtngTLLorV.I W-.ATQQAr (iph r 4T|?roj*clioii t tukTinbftlai 1948Tokyo oitonTnztart Astro 163Unit” Ar b FnirOfkrViti Um1916 ik-Znii-Uk 0G$T2Falce nor thing|Ellij

16、.ioidlVGS 84File rrojectioa OptionsProjection Namer tls *3tiric|EJ5J6D-1D5EFrojcction TypeLAtitnde of projection originFa“ uor thiiqs(輕自定义的坐 标系名称。选择的横轴 墨卡托投影Mercator AMercator XMercator B(sphere)(ellipse)Spct Oblique SpaceOblique Spce ObliqueStereographi cStereorrskphi cBZ!SZQS3LSKm3VM dr Grmt*n ITy

17、n IVLatitudeLongi tudc of centralLonQ tld选择已有的北 京5454 坐标基准 面4T projection DatmViU Levu 1916WleEni wetok?60n?S-72WGS-64IcfiireZander i jEllipsoid KrasovskyOust oBap Projection De?finitionf. |fC XFilft Frojctin OptionsTrojectLOA KanieBJ54D05EProjection TypeLatitude of project on originScale factorari8

18、0Ell i psoi d|Kr aa wxkyVan der Grxntn *gnex IVVita Lovu 1916Wake-airttok 60WGS-72WGS-81 TacoreZander i iSpace Olliue UercatQX ASpaca Oblique Mere at ox ASpace Obliq,ue Mercator BStereographi c (sphere) StereoIt Projection Drtu/r坐标偏移，这保证 X X为正值，将中央经线向东偏移 500km500kmPpTooLli tud 1Longitude of central

19、eridiLong Qudw南偏为 0 0中央纬线为 0 0False eestin pDJJMBfflJ northing比例系数，0.99960.9996是个经验值。也可输 入仏中央经线根据自己 幅位置而定注意输入值后要回车以表示确定。Space Obii que Mercator A /s Space ObliqueNercator A一Spac Oblique Mercator BStvruphic（Kphrv）V der GrintenIVv 亠亠1FTT确定!Latitude of ?rojction ori ginLati tnd Jo 3Longitude o central