XAML-Map-Control/MapProjections/Shared/ProjNetMapProjectionFactory.cs
2026-01-16 20:23:28 +01:00

52 lines
3.2 KiB
C#

using System.Collections.Generic;
namespace MapControl.Projections
{
public class ProjNetMapProjectionFactory : MapProjectionFactory
{
public Dictionary<int, string> CoordinateSystemWkts { get; } = new Dictionary<int, string>
{
{ 2056, WktConstants.ProjCsCh1903Lv95 },
{ 2100, WktConstants.ProjCsGgrs87 },
{ 2180, WktConstants.ProjCsEtrf2000Pl },
{ 3034, WktConstants.ProjCsEtrs89LccEurope },
{ 3035, WktConstants.ProjCsEtrs89LaeaEurope },
{ 4087, WktConstants.ProjCsWgs84 },
{ 4647, WktConstants.ProjCsEtrs89Utm32NzEN },
{ 4839, WktConstants.ProjCsEtrs89LccGermanyNE },
{ 5243, WktConstants.ProjCsEtrs89LccGermanyEN },
{ 21781, WktConstants.ProjCsCh1903Lv03 },
{ 29187, WktConstants.ProjCsSad69Utm17S },
{ 29188, WktConstants.ProjCsSad69Utm18S },
{ 29189, WktConstants.ProjCsSad69Utm19S },
{ 29190, WktConstants.ProjCsSad69Utm20S },
{ 29191, WktConstants.ProjCsSad69Utm21S },
{ 29192, WktConstants.ProjCsSad69Utm22S },
{ 29193, WktConstants.ProjCsSad69Utm23S },
};
public override MapProjection GetProjection(string crsId) => crsId switch
{
MapControl.WebMercatorProjection.DefaultCrsId => new WebMercatorProjection(),
MapControl.WorldMercatorProjection.DefaultCrsId => new WorldMercatorProjection(),
MapControl.Wgs84UpsNorthProjection.DefaultCrsId => new Wgs84UpsNorthProjection(),
MapControl.Wgs84UpsSouthProjection.DefaultCrsId => new Wgs84UpsSouthProjection(),
MapControl.Wgs84AutoUtmProjection.DefaultCrsId => new Wgs84AutoUtmProjection(),
MapControl.OrthographicProjection.DefaultCrsId => new Wgs84OrthographicProjection(),
MapControl.StereographicProjection.DefaultCrsId => new Wgs84StereographicProjection(),
_ => base.GetProjection(crsId)
};
public override MapProjection GetProjection(int epsgCode) => epsgCode switch
{
var code when code >= Ed50UtmProjection.FirstZoneEpsgCode && code <= Ed50UtmProjection.LastZoneEpsgCode => new Ed50UtmProjection(epsgCode % 100),
var code when code >= Etrs89UtmProjection.FirstZoneEpsgCode && code <= Etrs89UtmProjection.LastZoneEpsgCode => new Etrs89UtmProjection(epsgCode % 100),
var code when code >= Nad27UtmProjection.FirstZoneEpsgCode && code <= Nad27UtmProjection.LastZoneEpsgCode => new Nad27UtmProjection(epsgCode % 100),
var code when code >= Nad83UtmProjection.FirstZoneEpsgCode && code <= Nad83UtmProjection.LastZoneEpsgCode => new Nad83UtmProjection(epsgCode % 100),
var code when code >= Wgs84UtmProjection.FirstZoneNorthEpsgCode && code <= Wgs84UtmProjection.LastZoneNorthEpsgCode => new Wgs84UtmProjection(epsgCode % 100, Hemisphere.North),
var code when code >= Wgs84UtmProjection.FirstZoneSouthEpsgCode && code <= Wgs84UtmProjection.LastZoneSouthEpsgCode => new Wgs84UtmProjection(epsgCode % 100, Hemisphere.South),
_ => CoordinateSystemWkts.TryGetValue(epsgCode, out string wkt) ? new ProjNetMapProjection(wkt) : base.GetProjection(epsgCode)
};
}
}