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Moved EquatorialRadius property to MapProjection

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ClemensFischer 2026-01-24 14:58:16 +01:00
parent aaa69a3c03
commit d71d6c6e01
14 changed files with 53 additions and 70 deletions
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16
MapControl/Shared/WorldMercatorProjection.cs
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@ -39,15 +39,15 @@ namespace MapControl
public override Point? LocationToMap(double latitude, double longitude)
{
return new Point(
Wgs84MeterPerDegree * longitude,
Wgs84MeterPerDegree * LatitudeToY(latitude));
MeterPerDegree * longitude,
MeterPerDegree * LatitudeToY(latitude));
}
public override Location MapToLocation(double x, double y)
{
return new Location(
YToLatitude(y / Wgs84MeterPerDegree),
x / Wgs84MeterPerDegree);
YToLatitude(y / MeterPerDegree),
x / MeterPerDegree);
}
public static double RelativeScale(double latitude)
@ -93,10 +93,10 @@ namespace MapControl
var chi = Math.PI / 2d - 2d * Math.Atan(t); // p.45 (7-13)
return chi +
(e2 / 2d + 5d * e4 / 24d + e6 / 12d + 13d * e8 / 360d) * Math.Sin(2d * chi) +
(7d * e4 / 48d + 29d * e6 / 240d + 811d * e8 / 11520d) * Math.Sin(4d * chi) +
(7d * e6 / 120d + 81d * e8 / 1120d) * Math.Sin(6d * chi) +
4279d * e8 / 161280d * Math.Sin(8d * chi); // p.45 (3-5)
(e2 / 2d + e4 * 5d / 24d + e6 / 12d + e8 * 13d / 360d) * Math.Sin(2d * chi) +
(e4 * 7d / 48d + e6 * 29d / 240d + e8 * 811d / 11520d) * Math.Sin(4d * chi) +
(e6 * 7d / 120d + e8 * 81d / 1120d) * Math.Sin(6d * chi) +
e8 * 4279d / 161280d * Math.Sin(8d * chi); // p.45 (3-5)
}
}
}