ClemensFischer/XAML-Map-Control
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Version 4.12. Revised projections

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ClemensF 2018-12-20 21:55:12 +01:00
parent 8cafe207cb
commit 90aa92def0
25 changed files with 390 additions and 167 deletions
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12
MapControl/Shared/MapProjection.cs
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@ -23,6 +23,9 @@ namespace MapControl
public const double PixelPerDegree = TileSize / 360d;
public const double Wgs84EquatorialRadius = 6378137d;
public const double Wgs84Flattening = 1d / 298.257223563;
public static readonly double Wgs84Eccentricity = Math.Sqrt((2d - Wgs84Flattening) * Wgs84Flattening);
public const double MetersPerDegree = Wgs84EquatorialRadius * Math.PI / 180d;
/// <summary>
@ -33,7 +36,7 @@ namespace MapControl
/// <summary>
/// Indicates if this is a normal cylindrical projection.
/// </summary>
public bool IsCylindrical { get; protected set; } = false;
public bool IsNormalCylindrical { get; protected set; } = false;
/// <summary>
/// Indicates if this is a web mercator projection, i.e. compatible with MapTileLayer.
@ -57,12 +60,13 @@ namespace MapControl
public Matrix ViewportTransform { get; private set; }
/// <summary>
/// Gets the transform matrix from viewport coordinates to cartesian map coordinates (pixels).
/// Gets the transform matrix from viewport coordinates (pixels) to cartesian map coordinates.
/// </summary>
public Matrix InverseViewportTransform { get; private set; }
/// <summary>
/// Gets the scaling factor from cartesian map coordinates to viewport coordinates.
/// Gets the scaling factor from cartesian map coordinates to viewport coordinates (pixels)
/// at the projection's point of true scale.
/// </summary>
public double ViewportScale { get; private set; }
@ -151,7 +155,7 @@ namespace MapControl
/// </summary>
public virtual string WmsQueryParameters(BoundingBox boundingBox)
{
if (string.IsNullOrEmpty(CrsId) || !boundingBox.HasValidBounds)
if (string.IsNullOrEmpty(CrsId))
{
return null;
}