Hi everyone and Feliz Navidad to all: I am exploring OGR Opensource software for datum/projection transformation (www.remotesensing.org), and like with the mapinfow.prj file, one of the datum/projection used here in Chile is not properly integrated. I am refering to PSAD56 Provitional South American Datum 1956 in UTM.
This datum is listed only for Lat/long but not for UTM. I have properly created the UTM lines in mapinfow.prj, and manage to do the same for OGR .cpp definition file. However, I am intrigued with the meaning of the �projection numbers?. I mean ... maybe is better to work with an example: The following list is part of the mapinfow.prj file, what this numbers stand for 78,79,80,81,82,83,84 is this part of the EPSG definition? "Longitude / Latitude (Oman)", 1, 78 "Longitude / Latitude (OSGB 36)\p4277", 1, 79 "Longitude / Latitude (Pico de las Nieves)", 1, 80 "Longitude / Latitude (Pitcairn Astro 1967)", 1, 81 "Longitude / Latitude (Potsdam)\p4314", 1, 1000 "Longitude / Latitude (Provisional South Chilean 1963)\p4254", 1, 36 "Longitude / Latitude (Provisional South American 1956)\p4248", 1, 82 "Longitude / Latitude (Puerto Rico)", 1, 83 "Longitude / Latitude (Pulkovo 1942)\p4284", 1, 1001 "Longitude / Latitude (Qatar National)\p4285", 1, 84 "Longitude / Latitude (Qornoq)\p4287", 1, 85 "Longitude / Latitude (Rauenberg)\p4314", 1, 1000 "Longitude / Latitude (Reunion)", 1, 86 "Longitude / Latitude (Rome 1940)", 1, 87 thanks Juanse temuko-Chile --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.427 / Virus Database: 240 - Release Date: 06/12/02
