可直接使用的ctb，下载完成后直接在当前目录使用

! ! By email on December 2nd, 2010: ! ! I, Louis Burry, on behalf of PCI Geomatics agree to allow the ellips.txt ! and datum.txt file to be distributed under the GDAL open source license. ! ! Louis Burry ! VP Technology & Delivery ! PCI Geomatics ! ! NOTE: The range of "D900" to "D998" is set aside for ! the use of local customer development. ! ! And the range of "D-90" to "D-98" is set aside for ! the use of local customer development. ! "DoD World Geodetic System 1984, DMA TR 8350.2" "4 JUL 1997, Third Printing, Includes 3 JAN 2000 Updates" "D-01","NAD27 (USA, NADCON)","E000","Conterminous U.S.","conus.los","conus.las" "D-02","NAD83 (USA, NADCON)","E008","Conterminous U.S.","conus.los","conus.las" "D-03","NAD27 (Canada, NTv1)","E000","Canada","grid.dac" "D-04","NAD83 (Canada, NTv1)","E008","Canada","grid.dac" "D-07","NAD27 (USA, NADCON)","E000","Alaska","alaska.los","alaska.las" "D-08","NAD83 (USA, NADCON)","E008","Alaska","alaska.los","alaska.las" "D-09","NAD27 (USA, NADCON)","E000","St. George","stgeorge.los","stgeorge.las" "D-10","NAD83 (USA, NADCON)","E008","St. George","stgeorge.los","stgeorge.las" "D-11","NAD27 (USA, NADCON)","E000","St. Lawrence","stlrnc.los","stlrnc.las" "D-12","NAD83 (USA, NADCON)","E008","St. Lawrence","stlrnc.los","stlrnc.las" "D-13","NAD27 (USA, NADCON)","E000","St. Paul","stpaul.los","stpaul.las" "D-14","NAD83 (USA, NADCON)","E008","St. Paul","stpaul.los","stpaul.las" "D-15","Old Hawaiian (USA, NADCON)","E000","Hawaii","hawaii.los","hawaii.las" "D-16","NAD83 (USA, NADCON)","E008","Hawaii","hawaii.los","hawaii.las" "D-17","NAD27 (USA, NADCON)","E000","Puerto Rico Virgin Islands","prvi.los","prvi.las" "D-18","NAD83 (USA, NADCON)","E008","Puerto Rico Virgin Islands","prvi.los","prvi.las" !"D-19","AGD66 (NTv2)","E014","Australia","A66 National (13.09.01).gsb" !"D-20","AGD84 (NTv2)","E014","Australia","National 84 (02.07.01).gsb" !"D-21","GDA94 (from AGD66, NTv2)","E008","Australia","A66 National (13.09.01).gsb" !"D-22","GDA94 (from AGD84, NTv2)","E008","Australia","National 84 (02.07.01).gsb" !"D-23","NZGD49 (NTv2)","E004","New Zealand","nzgd2kgrid0005.gsb" !"D-24","NZGD2000 (NTv2)","E008","New Zealand","nzgd2kgrid0005.gsb" !"D-66","NAD27 (NTv2)","E000","Quebec","na27scrs.gsb" !"D-67","NAD83 (SCRS) (NTv2)","E008","Quebec","na27scrs.gsb" !"D-68","NAD27 (NTv2)","E000","Quebec","na27na83.gsb" !"D-69","NAD83 (NTv2)","E008","Quebec","na27na83.gsb" !"D-70","NAD27 (CGQ77) (NTv2)","E000","Quebec","cq77scrs.gsb" !"D-71","NAD83 (SCRS) (NTv2)","E008","Quebec","cq77scrs.gsb" !"D-72","NAD27 (CGQ77) (NTv2)","E000","Quebec","cq77na83.gsb" !"D-73","NAD83 (NTv2)","E008","Quebec","cq77na83.gsb" !"D-74","NAD83 (NTv2)","E008","Quebec","na83scrs.gsb" !"D-75","NAD83 (SCRS) (NTv2)","E008","Quebec","na83scrs.gsb" !"D-76","NAD27 (NTv2)","E000","Saskatchewan","sk27-98.gsb" !"D-77","NAD83 (CSRS98) (NTv2)","E008","Saskatchewan","sk27-98.gsb" !"D-78","NAD83 (NTv2)","E008","Saskatchewan","sk83-98.gsb" !"D-79","NAD83 (CSRS98) (NTv2)","E008","Saskatchewan","sk83-98.gsb" !"D-80","ATS77 (NTv2)","E910","Nova Scotia","ns778301.gsb" !"D-81","NAD83 (CSRS98) (NTv2)","E008","Nova Scotia","ns778301.gsb" !"D-82","ATS77 (NTv2)","E910","Prince Edward Island","pe7783v2.gsb" !"D-83","NAD83 (CSRS98) (NTv2)","E008","Prince Edward Island","pe7783v2.gsb" !"D-84","ATS77 (NTv2)","E910","New Brunswick","nb7783v2.gsb" !"D-85","NAD83 (CSRS98) (NTv2)","E008","New Brunswick","nb7783v2.gsb" !"D-86","NAD27 (NTv2)","E000","Canada","ntv2_0.gsb" !"D-87","NAD83 (NTv2)","E008","Canada","ntv2_0.gsb" !"D-88","NAD27 (1976) (NTv2)","E000","Ontario","may76v20.gsb" !"D-89","NAD83 (NTv2)","E008","Ontario","may76v20.gsb" "D800","Normal Sphere","E019",0,0,0,"",0,0,0,0 "D000","WGS 1984","E012",0,0,0,"Global Definition",0,0,0,0 "D001","WGS 1972","E005",0,0,0,"Global Definition",3,3,3,1 "D002","Adindan","E001",-166,-15,204,"MEAN FOR Ethiopia, Sudan",5,5,3,22 "D003","Adindan","E001",-118,-14,218,"Burkina Faso",25,25,25,1 "D004","Adindan","E001",-134,-2,210,"Cameroon",25,25,25,1 "D005","Adindan","E001",-165,-11,206,"Ethiopia",3,3,3,8 "D006","Adindan","E001",-123,-20,220,"Mali",25,25,25,1 "D007","Adindan","E001",-128,-18,224,"Senegal",25,25,25,2 "D008","Adindan","E001",-161,-14,205,"Sudan",3,5,3,14 "D009","Afgooye","E015",-43,-163,45,"Somalia",25,25,25,1 "D010","Ain el Abd 1970","E004",-150,-250,-1,"Bahrain",25,25,25,2 "D011","Ain el Abd 1970","E004",-143,-236,7,"Saudi Arabia",10,10,10,9 "D012","Anna 1 Astro 1965","E014",-491,-22,435,"Cocos Islands",25,25,25,1 "D013","Antigua Island Astro 1943","E001",-270,13,62,"Antigua (Leeward Islands)",25,25,25,1 "D014","Arc 1950","E001",-143,-90,-294,"MEAN Solution",20,33,20,41 "D015","Arc 1950","E001",-138,-105,-289,"Botswana",3,5,3,9 "D016","Arc 1950","E001",-153,-5,-292,"Burundi",20,20,20,3 "D017","Arc 1950","E001",-125,-108,-295,"Lesotho",3,3,8,5 "D018","Arc 1950","E001",-161,-73,-317,"Malawi",9,24,8,6 "D019","Arc 1950","E001",-134,-105,-295,"Swaziland",15,15,15,4 "D020","Arc 1950","E001",-169,-19,-278,"Zaire",25,25,25,2 "D021","Arc 1950","E001",-147,-74,-283,"Zambia",21,21,27,5 "D022","Arc 1950","E001",-142,-96,-293,"Zimbabwe",5,8,11,10 "D023","Arc 1960","E001",-160,-6,-302,"MEAN FOR Kenya, Tanzania",20,20,20,25 "D024","Ascension Island 1958","E004",-205,107,53,"Ascension Island",25,25,25,2 "D025","Astro Beacon E 1945","E004",145,75,-272,"Iwo Jima",25,25,25,1 "D026","Astro DOS 71/4","E004",-320,550,-494,"St Helena Island",25,25,25,1 "D027","Astro Tern Island (FRIG) 1961","E004",114,-116,-333,"Tern Island",25,25,25,1 "D028","Astronomical Station 1952","E004",124,-234,-25,"Marcus Island",25,25,25,1 "D029","Australian Geodetic 1966","E014",-133,-48,148,"Australia & Tasmania",3,3,3,105 "D030","Australian Geodetic 1984","E014",-134,-48,149,"Australia & Tasmania",2,2,2,90 "D031","Ayabelle Lighthouse","E001",-79,-129,145,"Djibouti",25,25,25,1 "D032","Bellevue (IGN)","E004",-127,-769,472,"Efate & Erromango Islands",20,20,20,3 "D033","Bermuda 1957","E000",-73,213,296,"Bermuda",20,20,20,3 "D034","Bissau","E004",-173,253,27,"Guinea-Bissau",25,25,25,2 "D035","Bogota Observatory","E004",307,304,-318,"Colombia",6,5,6,7 "D036","Bukit Rimpah","E002",-384,664,-48,"Indonesia (Bangka & Belitung Islands)",-1,-1,-1,0 "D037","Camp Area Astro","E004",-104,-129,239,"Antarctica (McMurdo Camp Area)",-1,-1,-1,0 "D038","Campo Inchauspe 1969","E004",-148,136,90,"Argentina",5,5,5,20 "D039","Canton Astro 1966","E004",298,-304,-375,"Phoenix Islands",15,15,15,4 "D040","Cape (Superceded by D517)","E001",-136,-108,-292,"South Africa",3,6,6,5 "D041","Cape Canaveral","E000",-2,151,181,"MEAN FOR Florida,Bahamas",3,3,3,19 "D042","Carthage","E001",-263,6,431,"Tunisia",6,9,8,5 "D043","Chatham Island Astro 1971","E004",175,-38,113,"New Zealand (Chatham Island)",15,15,15,4 "D044","Chua Astro","E004",-134,229,-29,"Paraguay",6,9,5,6 "D045","Corrego Alegre","E004",-206,172,-6,"Brazil",5,3,5,17 "D046","Dabola","E001",-83,37,124,"Guinea",15,15,15,4 "D047","Djakarta (Batavia)","E002",-377,681,-50,"Indonesia (Sumatra)",3,3,3,5 "D048","DOS 1968","E004",230,-199,-752,"New Georgia Islands (Gizo Island)",25,25,25,1 "D049","Easter Island 1967","E004",211,147,111,"Easter Island",25,25,25,1 "D050","European 1950","E004",-87,-98,-121,"MEAN FOR Europe,",3,8,5,85 "D051","European 1950","E004",-87,-96,-120,"MEAN FOR Western Europe,",3,3,3,52 "D052","European 1950","E004",-103,-106,-141,"MEAN FOR Iraq, Israel, Jordan, Lebanon",-1,-1,-1,0 "D053","European 1950","E004",-104,-101,-140,"Cyprus",15,15,15,4 "D054","European 1950","E004",-130,-117,-151,"Egypt",6,8,8,14 "D055","European 1950","E004",-86,-96,-120,"MEAN FOR England, Channel Islands, Ireland",3,3,3,40 "D056","European 1950","E004",-87,-95,-120,"Finland, Norway",3,5,3,20 "D057","European 1950","E004",-84,-95,-130,"Greece",25,25,25,2 "D058","European 1950","E004",-117,-132,-164,"Iran",9,12,11,27 "D