ClemensFischer/XAML-Map-Control
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Unified map projections

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ClemensFischer 2026-02-01 17:25:04 +01:00
parent a4bd11e26d
commit 9fe7dccd68
21 changed files with 370 additions and 377 deletions
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4
MapControl/Shared/WorldMercatorProjection.cs
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@ -16,8 +16,6 @@ namespace MapControl
{
public const string DefaultCrsId = "EPSG:3395";
public double Flattening { get; set; } = Wgs84Flattening;
public WorldMercatorProjection() // parameterless constructor for XAML
: this(DefaultCrsId)
{
@ -31,8 +29,8 @@ namespace MapControl
public override Matrix RelativeTransform(double latitude, double longitude)
{
var phi = latitude * Math.PI / 180d;
var e2 = (2d - Flattening) * Flattening;
var phi = latitude * Math.PI / 180d;
var sinPhi = Math.Sin(phi);
var k = Math.Sqrt(1d - e2 * sinPhi * sinPhi) / Math.Cos(phi); // p.44 (7-8)