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/****************************************************************************/
/* */
/* ./gps/datum.c - Definition of Datum and Ellipsoid */
/* */
/* This file is part of gpstrans - a program to communicate with garmin gps */
/* Parts are taken from John F. Waers (jfwaers@csn.net) program MacGPS. */
/* */
/* */
/* Copyright (c) 1995 by Carsten Tschach (tschach@zedat.fu-berlin.de) */
/* */
/* Permission to use, copy, modify, and distribute this software and its */
/* documentation for non-commercial purpose, is hereby granted without fee, */
/* providing that the copyright notice appear in all copies and that both */
/* the copyright notice and this permission notice appear in supporting */
/* documentation. I make no representations about the suitability of this */
/* software for any purpose. It is provides "as is" without express or */
/* implid warranty. */
/* */
/****************************************************************************/
#include "defs.h"
#include "Garmin.h"
/****************************************************************************/
/* */
/* ellipsoid: index into the gEllipsoid[] array, in which */
/* */
/* a: ellipsoid semimajor axis */
/* invf: inverse of the ellipsoid flattening f */
/* dx, dy, dz: ellipsoid center with respect to WGS84 ellipsoid center */
/* */
/* x axis is the prime meridian */
/* y axis is 90 degrees east longitude */
/* z axis is the axis of rotation of the ellipsoid */
/* */
/* The following values for dx, dy and dz were extracted from the output of */
/* the GARMIN PCX5 program. The output also includes values for da and df, */
/* the difference between the reference ellipsoid and the WGS84 ellipsoid */
/* semi-major axis and flattening, respectively. These are replaced by the */
/* data contained in the structure array gEllipsoid[], which was obtained */
/* from the Defence Mapping Agency document number TR8350.2, "Department of */
/* Defense World Geodetic System 1984." */
/* */
/****************************************************************************/
/* Number of gDatum entries */
short nDatums = 101;
struct DATUM const gDatum[] = {
{ "Adindan", 5, -162, -12, 206 },
{ "Afgooye", 15, -43, -163, 45 },
{ "Ain el Abd 1970", 14, -150, -251, -2 },
{ "Anna 1 Astro 1965", 2, -491, -22, 435 },
{ "Arc 1950", 5, -143, -90, -294 },
{ "Arc 1960", 5, -160, -8, -300 },
{ "Ascension Island `58", 14, -207, 107, 52 },
{ "Astro B4 Sorol Atoll", 14, 114, -116, -333 },
{ "Astro Beacon \"E\"", 14, 145, 75, -272 },
{ "Astro DOS 71/4", 14, -320, 550, -494 },
{ "Astronomic Stn `52", 14, 124, -234, -25 },
{ "Australian Geod `66", 2, -133, -48, 148 },
{ "Australian Geod `84", 2, -134, -48, 149 },
{ "Bellevue (IGN)", 14, -127, -769, 472 },
{ "Bermuda 1957", 4, -73, 213, 296 },
{ "Bogota Observatory", 14, 307, 304, -318 },
{ "Campo Inchauspe", 14, -148, 136, 90 },
{ "Canton Astro 1966", 14, 298, -304, -375 },
{ "Cape", 5, -136, -108, -292 },
{ "Cape Canaveral", 4, -2, 150, 181 },
{ "Carthage", 5, -263, 6, 431 },
{ "CH-1903", 3, 674, 15, 405 },
{ "Chatham 1971", 14, 175, -38, 113 },
{ "Chua Astro", 14, -134, 229, -29 },
{ "Corrego Alegre", 14, -206, 172, -6 },
{ "Djakarta (Batavia)", 3, -377, 681, -50 },
{ "DOS 1968", 14, 230, -199, -752 },
{ "Easter Island 1967", 14, 211, 147, 111 },
{ "European 1950", 14, -87, -98, -121 },
{ "European 1979", 14, -86, -98, -119 },
{ "Finland Hayford", 14, -78, -231, -97 },
{ "Gandajika Base", 14, -133, -321, 50 },
{ "Geodetic Datum `49", 14, 84, -22, 209 },
{ "Guam 1963", 4, -100, -248, 259 },
{ "GUX 1 Astro", 14, 252, -209, -751 },
{ "Hjorsey 1955", 14, -73, 46, -86 },
{ "Hong Kong 1963", 14, -156, -271, -189 },
{ "Indian Bangladesh", 6, 289, 734, 257 },
{ "Indian Thailand", 6, 214, 836, 303 },
{ "Ireland 1965", 1, 506, -122, 611 },
{ "ISTS 073 Astro `69", 14, 208, -435, -229 },
{ "Johnston Island", 14, 191, -77, -204 },
{ "Kandawala", 6, -97, 787, 86 },
{ "Kerguelen Island", 14, 145, -187, 103 },
{ "Kertau 1948", 7, -11, 851, 5 },
{ "L.C. 5 Astro", 4, 42, 124, 147 },
{ "Liberia 1964", 5, -90, 40, 88 },
{ "Luzon Mindanao", 4, -133, -79, -72 },
{ "Luzon Philippines", 4, -133, -77, -51 },
{ "Mahe 1971", 5, 41, -220, -134 },
{ "Marco Astro", 14, -289, -124, 60 },
{ "Massawa", 3, 639, 405, 60 },
{ "Merchich", 5, 31, 146, 47 },
{ "Midway Astro 1961", 14, 912, -58, 1227 },
{ "Minna", 5, -92, -93, 122 },
{ "NAD27 Alaska", 4, -5, 135, 172 },
{ "NAD27 Bahamas", 4, -4, 154, 178 },
{ "NAD27 Canada", 4, -10, 158, 187 },
{ "NAD27 Canal Zone", 4, 0, 125, 201 },
{ "NAD27 Caribbean", 4, -7, 152, 178 },
{ "NAD27 Central", 4, 0, 125, 194 },
{ "NAD27 CONUS", 4, -8, 160, 176 },
{ "NAD27 Cuba", 4, -9, 152, 178 },
{ "NAD27 Greenland", 4, 11, 114, 195 },
{ "NAD27 Mexico", 4, -12, 130, 190 },
{ "NAD27 San Salvador", 4, 1, 140, 165 },
{ "NAD83", 11, 0, 0, 0 },
{ "Nahrwn Masirah Ilnd", 5, -247, -148, 369 },
{ "Nahrwn Saudi Arbia", 5, -231, -196, 482 },
{ "Nahrwn United Arab", 5, -249, -156, 381 },
{ "Naparima BWI", 14, -2, 374, 172 },
{ "Observatorio 1966", 14, -425, -169, 81 },
{ "Old Egyptian", 12, -130, 110, -13 },
{ "Old Hawaiian", 4, 61, -285, -181 },
{ "Oman", 5, -346, -1, 224 },
{ "Ord Srvy Grt Britn", 0, 375, -111, 431 },
{ "Pico De Las Nieves", 14, -307, -92, 127 },
{ "Pitcairn Astro 1967", 14, 185, 165, 42 },
{ "Prov So Amrican `56", 14, -288, 175, -376 },
{ "Prov So Chilean `63", 14, 16, 196, 93 },
{ "Puerto Rico", 4, 11, 72, -101 },
{ "Qatar National", 14, -128, -283, 22 },
{ "Qornoq", 14, 164, 138, -189 },
{ "Reunion", 14, 94, -948, -1262 },
{ "Rome 1940", 14, -225, -65, 9 },
{ "RT 90", 3, 498, -36, 568 },
{ "Santo (DOS)", 14, 170, 42, 84 },
{ "Sao Braz", 14, -203, 141, 53 },
{ "Sapper Hill 1943", 14, -355, 16, 74 },
{ "Schwarzeck", 21, 616, 97, -251 },
{ "South American `69", 16, -57, 1, -41 },
{ "South Asia", 8, 7, -10, -26 },
{ "Southeast Base", 14, -499, -249, 314 },
{ "Southwest Base", 14, -104, 167, -38 },
{ "Timbalai 1948", 6, -689, 691, -46 },
{ "Tokyo", 3, -128, 481, 664 },
{ "Tristan Astro 1968", 14, -632, 438, -609 },
{ "Viti Levu 1916", 5, 51, 391, -36 },
{ "Wake-Eniwetok `60", 13, 101, 52, -39 },
{ "WGS 72", 19, 0, 0, 5 },
{ "WGS 84", 20, 0, 0, 0 },
{ "Zanderij", 14, -265, 120, -358 }
};
struct ELLIPSOID const gEllipsoid[] = {
{ "Airy 1830", 6377563.396, 299.3249646 },
{ "Modified Airy", 6377340.189, 299.3249646 },
{ "Australian National", 6378160.0, 298.25 },
{ "Bessel 1841", 6377397.155, 299.1528128 },
{ "Clarke 1866", 6378206.4, 294.9786982 },
{ "Clarke 1880", 6378249.145, 293.465 },
{ "Everest (India 1830)", 6377276.345, 300.8017 },
{ "Everest (1948)", 6377304.063, 300.8017 },
{ "Modified Fischer 1960", 6378155.0, 298.3 },
{ "Everest (Pakistan)", 6377309.613, 300.8017 },
{ "Indonesian 1974", 6378160.0, 298.247 },
{ "GRS 80", 6378137.0, 298.257222101 },
{ "Helmert 1906", 6378200.0, 298.3 },
{ "Hough 1960", 6378270.0, 297.0 },
{ "International 1924", 6378388.0, 297.0 },
{ "Krassovsky 1940", 6378245.0, 298.3 },
{ "South American 1969", 6378160.0, 298.25 },
{ "Everest (Malaysia 1969)", 6377295.664, 300.8017 },
{ "Everest (Sabah Sarawak)", 6377298.556, 300.8017 },
{ "WGS 72", 6378135.0, 298.26 },
{ "WGS 84", 6378137.0, 298.257223563 },
{ "Bessel 1841 (Namibia)", 6377483.865, 299.1528128 },
{ "Everest (India 1956)", 6377301.243, 300.8017 }
};
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