ClemensFischer/XAML-Map-Control
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Version 4.4.0: Fixed MapPolyline performance on UWP. Added MapPolygon and MapMultiPolygon for WPF.

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ClemensF 2018-02-09 17:43:47 +01:00
parent cce5d6e0b4
commit d1552506f6
80 changed files with 673 additions and 550 deletions
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17
MapControl/Shared/AzimuthalProjection.cs
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@ -1,5 +1,5 @@
// XAML Map Control - https://github.com/ClemensFischer/XAML-Map-Control
// © 2017 Clemens Fischer
// © 2018 Clemens Fischer
// Licensed under the Microsoft Public License (Ms-PL)
using System;
@ -21,13 +21,8 @@ namespace MapControl
public AzimuthalProjection()
{
IsContinuous = false;
IsAzimuthal = true;
LongitudeScale = double.NaN;
}
public override double GetViewportScale(double zoomLevel)
{
return DegreesToViewportScale(zoomLevel) / MetersPerDegree;
}
public override Point GetMapScale(Location location)
@ -37,7 +32,7 @@ namespace MapControl
public override Location TranslateLocation(Location location, Point translation)
{
var scaleY = ViewportScale * MetersPerDegree;
var scaleY = ViewportScale * TrueScale;
var scaleX = scaleY * Math.Cos(location.Latitude * Math.PI / 180d);
return new Location(
@ -112,7 +107,7 @@ namespace MapControl
var cosDistance = sinLat1 * sinLat2 + cosLat1 * cosLat2 * cosLon12;
azimuth = Math.Atan2(sinLon12, cosLat1 * sinLat2 / cosLat2 - sinLat1 * cosLon12);
distance = Math.Acos(Math.Max(Math.Min(cosDistance, 1d), -1d));
distance = Math.Acos(Math.Min(Math.Max(cosDistance, -1d), 1d));
}
/// <summary>
@ -128,10 +123,10 @@ namespace MapControl
var cosLat1 = Math.Cos(lat1);
var sinLat1 = Math.Sin(lat1);
var sinLat2 = sinLat1 * cosDistance + cosLat1 * sinDistance * cosAzimuth;
var lat2 = Math.Asin(Math.Max(Math.Min(sinLat2, 1d), -1d));
var lat2 = Math.Asin(Math.Min(Math.Max(sinLat2, -1d), 1d));
var dLon = Math.Atan2(sinDistance * sinAzimuth, cosLat1 * cosDistance - sinLat1 * sinDistance * cosAzimuth);
return new Location(180d / Math.PI * lat2, location.Longitude + 180d / Math.PI * dLon);
return new Location(lat2 * 180d / Math.PI, location.Longitude + dLon * 180d / Math.PI);
}
}
}