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Update TransverseMercatorProjection.cs

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ClemensFischer 2026-01-14 09:30:01 +01:00
parent d26df13a0d
commit 2b2c3a12f7
1 changed files with 5 additions and 5 deletions
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10
MapControl/Shared/TransverseMercatorProjection.cs
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@ -81,11 +81,11 @@ namespace MapControl
// t
var t = Math.Sinh(Atanh(sinPhi) - f2 * Atanh(f2 * sinPhi));
// λ - λ0
var lambda = (longitude - CentralMeridian) * Math.PI / 180d;
var dLambda = (longitude - CentralMeridian) * Math.PI / 180d;
// ξ'
var xi_ = Math.Atan(t / Math.Cos(lambda));
var xi_ = Math.Atan(t / Math.Cos(dLambda));
// η'
var eta_ = Atanh(Math.Sin(lambda) / Math.Sqrt(1d + t * t));
var eta_ = Atanh(Math.Sin(dLambda) / Math.Sqrt(1d + t * t));
// ξ
var xi = xi_
+ a1 * Math.Sin(2d * xi_) * Math.Cosh(2d * eta_)
@ -128,11 +128,11 @@ namespace MapControl
+ d2 * Math.Sin(4d * chi)
+ d3 * Math.Sin(6d * chi);
// λ - λ0
var lambda = Math.Atan(Math.Sinh(eta_) / Math.Cos(xi_));
var dLambda = Math.Atan(Math.Sinh(eta_) / Math.Cos(xi_));
return new Location(
phi * 180d / Math.PI,
lambda * 180d / Math.PI + CentralMeridian);
dLambda * 180d / Math.PI + CentralMeridian);
}
}
}