public static SrsBase AsSrsBase(int srid)
{
switch (srid)
{
case SridHelper.GeodeticWGS84:
return(new NoProjection("Wgs84", Ellipsoids.WGS84)); // { DatumName = this.Geogcs.Values?.First() };
case SridHelper.WebMercator:
return(new WebMercator());
case SridHelper.UtmNorthZone38:
return(new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(38)));
case SridHelper.UtmNorthZone39:
return(new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(39)));
case SridHelper.UtmNorthZone40:
return(new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(40)));
case SridHelper.UtmNorthZone41:
return(new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(41)));
default:
return(null);
}
//public static CrsBase GetCrs(int srid)
//{
// switch (srid)
// {
// case GeodeticWGS84:
// return DefaultMapProjections.
// break;
// case WebMercator:
// return new WebMercator();
// default:
// break;
// }
//}
}
static SrsBases()
{
GeodeticWgs84 = new NoProjection();
WebMercator = new WebMercator();
//https://epsg.io/3200
//LccFd58 = new LambertConformalConic(
// ellipsoid: Ellipsoids.FD58,
// standardParallel1: 29.655083333333333333333333333333,
// standardParallel2: 35.314694444444444444444444444444,
// centralMeridian: 45.0,
// latitudeOfOrigin: 32.5,
// falseEasting: 1500000.0,
// falseNorthing: 1166200.0,
// scaleFactor: 0.9987864078,
// srid: 3200);
LccFd58 = new LambertConformalConic1P(
ellipsoid: Ellipsoids.FD58,
centralMeridian: 45.0,
latitudeOfOrigin: 32.5,
falseEasting: 1500000.0,
falseNorthing: 1166200.0,
scaleFactor: 0.9987864078,
srid: 3200);
LccNahrawanIraq = new LambertConformalConic2P(
ellipsoid: Ellipsoids.NahrawanIraq,
standardParallel1: 29.655083333333333333333333333333,
standardParallel2: 35.314694444444444444444444444444,
centralMeridian: 45.0,
latitudeOfOrigin: 32.5,
falseEasting: 1500000.0,
falseNorthing: 1166200.0,
scaleFactor: 1);
LccNahrawan = new LambertConformalConic2P(
ellipsoid: Ellipsoids.Nahrawan,
standardParallel1: 29.655083333333333333333333333333,
standardParallel2: 35.314694444444444444444444444444,
centralMeridian: 45.0,
latitudeOfOrigin: 32.5,
falseEasting: 1500000.0,
falseNorthing: 1166200.0,
scaleFactor: 1);
LccNiocWithClarcke1880Rgs = new LambertConformalConic2P(
ellipsoid: Ellipsoids.Clarke1880Rgs,
standardParallel1: 29.655083333333333333333333333333,
standardParallel2: 35.314694444444444444444444444444,
centralMeridian: 45.0,
latitudeOfOrigin: 32.5,
falseEasting: 1500000.0,
falseNorthing: 1166200.0,
scaleFactor: 0.9987864078);
LccNiocWithWgs84 = new LambertConformalConic2P(
ellipsoid: Ellipsoids.WGS84,
standardParallel1: 29.65508274166,
standardParallel2: 35.31468809166,
centralMeridian: 45.0,
latitudeOfOrigin: 32.5,
falseEasting: 1500000.0,
falseNorthing: 1166200.0,
scaleFactor: 0.9987864078);
UtmNorthZone38 = new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(38));
UtmNorthZone39 = new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(39));
UtmNorthZone40 = new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(40));
UtmNorthZone41 = new UTM(Ellipsoids.WGS84, MapProjects.CalculateCentralMeridian(41));
}
public static UTM CreateForZone(Ellipsoid ellipsoid, int zone)
{
var centralLongitude = MapProjects.CalculateCentralMeridian(zone);
return(new UTM(ellipsoid, centralLongitude));
}