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Updated azimuthal projections

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ClemensFischer 2026-01-21 12:08:12 +01:00
parent d5ee7bbfc0
commit 1bf4cab071
6 changed files with 93 additions and 39 deletions
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38
MapProjections/Shared/ProjNetMapProjectionFactory.cs
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@ -27,7 +27,7 @@ namespace MapControl.Projections
public override MapProjection GetProjection(string crsId)
{
MapProjection projection = crsId switch
return crsId switch
{
MapControl.WebMercatorProjection.DefaultCrsId => new WebMercatorProjection(),
MapControl.WorldMercatorProjection.DefaultCrsId => new WorldMercatorProjection(),
@ -36,21 +36,33 @@ namespace MapControl.Projections
MapControl.Wgs84AutoUtmProjection.DefaultCrsId => new Wgs84AutoUtmProjection(),
MapControl.OrthographicProjection.DefaultCrsId => new Wgs84OrthographicProjection(),
MapControl.StereographicProjection.DefaultCrsId => new Wgs84StereographicProjection(),
_ => GetProjectionFromEpsgCode(crsId)
_ => GetProjectionFromEpsgCode(crsId) ?? base.GetProjection(crsId)
};
return projection ?? base.GetProjection(crsId);
}
public override MapProjection GetProjection(int epsgCode) => epsgCode switch
public override MapProjection GetProjection(int epsgCode)
{
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)
};
if (CoordinateSystemWkts.TryGetValue(epsgCode, out string wkt))
{
return new ProjNetMapProjection(wkt);
}
return epsgCode switch
{
var c when c is >= Ed50UtmProjection.FirstZoneEpsgCode
and <= Ed50UtmProjection.LastZoneEpsgCode => new Ed50UtmProjection(c % 100),
var c when c is >= Etrs89UtmProjection.FirstZoneEpsgCode
and <= Etrs89UtmProjection.LastZoneEpsgCode => new Etrs89UtmProjection(c % 100),
var c when c is >= Nad27UtmProjection.FirstZoneEpsgCode
and <= Nad27UtmProjection.LastZoneEpsgCode => new Nad27UtmProjection(c % 100),
var c when c is >= Nad83UtmProjection.FirstZoneEpsgCode
and <= Nad83UtmProjection.LastZoneEpsgCode => new Nad83UtmProjection(c % 100),
var c when c is >= Wgs84UtmProjection.FirstZoneNorthEpsgCode
and <= Wgs84UtmProjection.LastZoneNorthEpsgCode => new Wgs84UtmProjection(c % 100, Hemisphere.North),
var c when c is >= Wgs84UtmProjection.FirstZoneSouthEpsgCode
and <= Wgs84UtmProjection.LastZoneSouthEpsgCode => new Wgs84UtmProjection(c % 100, Hemisphere.South),
_ => base.GetProjection(epsgCode)
};
}
}
}