ClemensFischer/XAML-Map-Control
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Removed MapProjection.MapToBoundingBox

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ClemensFischer 2026-01-30 22:26:51 +01:00
parent 4fa2470739
commit 5c8d000378
4 changed files with 134 additions and 129 deletions
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28
MapControl/Shared/MapProjection.cs
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@ -59,13 +59,6 @@ namespace MapControl
/// </summary>
public abstract Matrix RelativeTransform(double latitude, double longitude);
/// <summary>
/// Gets the grid convergence angle in degrees at the specified projected map coordinates.
/// Used for rotating the Rect resulting from BoundingBoxToMap in non-normal-cylindrical
/// projections, i.e. Transverse Mercator and Polar Stereographic.
/// </summary>
public virtual double GridConvergence(double x, double y) => 0d;
/// <summary>
/// Transforms geographic coordinates to a Point in projected map coordinates.
/// </summary>
@ -76,6 +69,13 @@ namespace MapControl
/// </summary>
public abstract Location MapToLocation(double x, double y);
/// <summary>
/// Gets the grid convergence angle in degrees at the specified projected map coordinates.
/// Used for rotating the Rect resulting from BoundingBoxToMap in non-normal-cylindrical
/// projections, i.e. Transverse Mercator and Polar Stereographic.
/// </summary>
public virtual double GridConvergence(double x, double y) => 0d;
/// <summary>
/// Gets the relative transform at the specified geographic Location.
/// </summary>
@ -93,7 +93,7 @@ namespace MapControl
/// <summary>
/// Transforms a BoundingBox in geographic coordinates to a Rect in projected map coordinates
/// with an optional rotation angle in degrees.
/// with an optional rotation angle in degrees for non-normal-cylindrical projections.
/// </summary>
public (Rect, double) BoundingBoxToMap(BoundingBox boundingBox)
{
@ -124,24 +124,12 @@ namespace MapControl
var height = Math.Sqrt(dx * dx + dy * dy);
rect = new Rect(centerX - width / 2d, centerY - height / 2d, width, height);
rotation = -GridConvergence(centerX, centerY); // invert direction for RotateTransform
}
return (rect, rotation);
}
/// <summary>
/// Transforms a Rect in projected map coordinates to a BoundingBox in geographic coordinates.
/// </summary>
public BoundingBox MapToBoundingBox(Rect rect)
{
var southWest = MapToLocation(rect.X, rect.Y);
var northEast = MapToLocation(rect.X + rect.Width, rect.Y + rect.Height);
return new BoundingBox(southWest.Latitude, southWest.Longitude, northEast.Latitude, northEast.Longitude);
}
public override string ToString()
{
return CrsId;