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Updated projections

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ClemensFischer 2026-01-13 23:24:48 +01:00
parent da3a9a18fb
commit 91dfeee19c
6 changed files with 49 additions and 43 deletions
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10
MapControl/Shared/PolarStereographicProjection.cs
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@ -96,16 +96,16 @@ namespace MapControl
var t = r * Math.Sqrt(Math.Pow(1d + e, 1d + e) * Math.Pow(1d - e, 1d - e))
/ (2d * EquatorialRadius * ScaleFactor); // p.162 (21-39)
var lat = WorldMercatorProjection.ApproximateLatitude(e, t); // p.162 (3-5)
var lon = Math.Atan2(x, -y); // p.162 (20-16)
var phi = WorldMercatorProjection.ApproximateLatitude(e, t); // p.162 (3-5)
var lambda = Math.Atan2(x, -y); // p.162 (20-16)
if (Hemisphere == Hemisphere.South)
{
lat = -lat;
lon = -lon;
phi = -phi;
lambda = -lambda;
}
return new Location(lat * 180d / Math.PI, lon * 180d / Math.PI);
return new Location(phi * 180d / Math.PI, lambda * 180d / Math.PI);
}
}