public function testDatum()
{
Proj4php::setDebug(false);
$proj4 = new Proj4php();
$projWGS84 = new Proj('EPSG:4326', $proj4);
$projED50 = new Proj('GEOGCS["ED50",DATUM["European_Datum_1950",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6230"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4230"]]', $proj4);
// from http://www.ihsenergy.com/epsg/guid7.pdf
// Chapter 2.3.2
// 53°48'33.82"N
// 2°07'46.38"E
$pointWGS84 = new Point(deg2rad(53.809189444), deg2rad(2.129455), $projWGS84);
$proj4->datum_transform($projWGS84->datum, $projED50->datum, $pointWGS84);
$this->assertEquals(deg2rad(53.809189444), $pointWGS84->x, '', 0.1);
$this->assertEquals(deg2rad(2.129455), $pointWGS84->y, '', 0.1);
}
