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Added enum Hemisphere

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ClemensFischer 2026-01-10 16:21:55 +01:00
parent 4166bd34d1
commit 1f75e9feea
6 changed files with 47 additions and 41 deletions
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16
MapControl/Shared/PolarStereographicProjection.cs
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@ -24,13 +24,13 @@ namespace MapControl
public double ScaleFactor { get; set; } = 0.994;
public double FalseEasting { get; set; } = 2e6;
public double FalseNorthing { get; set; } = 2e6;
public bool IsNorth { get; set; }
public Hemisphere Hemisphere { get; set; }
public override Point RelativeScale(double latitude, double longitude)
{
latitude *= Math.PI / 180d;
if (!IsNorth)
if (Hemisphere == Hemisphere.South)
{
latitude = -latitude;
}
@ -54,7 +54,7 @@ namespace MapControl
latitude *= Math.PI / 180d;
longitude *= Math.PI / 180d;
if (!IsNorth)
if (Hemisphere == Hemisphere.South)
{
latitude = -latitude;
longitude = -longitude;
@ -71,7 +71,7 @@ namespace MapControl
var x = r * Math.Sin(longitude); // p.161 (21-30)
var y = -r * Math.Cos(longitude); // p.161 (21-31)
if (!IsNorth)
if (Hemisphere == Hemisphere.South)
{
x = -x;
y = -y;
@ -85,7 +85,7 @@ namespace MapControl
x -= FalseEasting;
y -= FalseNorthing;
if (!IsNorth)
if (Hemisphere == Hemisphere.South)
{
x = -x;
y = -y;
@ -99,7 +99,7 @@ namespace MapControl
var lat = WorldMercatorProjection.ApproximateLatitude(e, t); // p.162 (3-5)
var lon = Math.Atan2(x, -y); // p.162 (20-16)
if (!IsNorth)
if (Hemisphere == Hemisphere.South)
{
lat = -lat;
lon = -lon;
@ -125,7 +125,7 @@ namespace MapControl
public UpsNorthProjection(string crsId)
{
CrsId = crsId;
IsNorth = true;
Hemisphere = Hemisphere.North;
}
}
@ -145,7 +145,7 @@ namespace MapControl
public UpsSouthProjection(string crsId)
{
CrsId = crsId;
IsNorth = false;
Hemisphere = Hemisphere.South;
}
}
}