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WmtsTileMatrixSet

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ClemensFischer 2025-12-03 08:21:15 +01:00
parent e14c9e4102
commit 65c20c76b2
5 changed files with 67 additions and 30 deletions
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43
MapControl/Shared/WmtsTileMatrixSet.cs Normal file
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using System.Collections.Generic;
using System.Linq;
#if WPF
using System.Windows;
#elif AVALONIA
using Avalonia;
#endif
namespace MapControl
{
public class WmtsTileMatrixSet(
string identifier, string supportedCrsId, string uriTemplate, IEnumerable<WmtsTileMatrix> tileMatrixes)
{
public string Identifier => identifier;
public string SupportedCrsId => supportedCrsId;
public string UriTemplate { get; } = uriTemplate.Replace("{TileMatrixSet}", identifier);
public List<WmtsTileMatrix> TileMatrixes { get; } = tileMatrixes.OrderBy(m => m.Scale).ToList();
public static WmtsTileMatrixSet CreateOpenStreetMapTileMatrixSet(
string uriTemplate, int minZoomLevel = 0, int maxZoomLevel = 19)
{
const int tileSize = 256;
const double baseScale = tileSize / (360d * MapProjection.Wgs84MeterPerDegree);
Point mapTopLeft = new(-180d * MapProjection.Wgs84MeterPerDegree,
180d * MapProjection.Wgs84MeterPerDegree);
return new WmtsTileMatrixSet(null,
WebMercatorProjection.DefaultCrsId,
uriTemplate
.Replace("{z}", "{0}")
.Replace("{x}", "{1}")
.Replace("{y}", "{2}"),
Enumerable
.Range(minZoomLevel, maxZoomLevel - minZoomLevel + 1)
.Select<int, (int zoomLevel, int matrixSize)>(z => (z, 1 << z))
.Select(t => new WmtsTileMatrix(
t.zoomLevel.ToString(),
t.matrixSize * baseScale, mapTopLeft,
tileSize, tileSize, t.matrixSize, t.matrixSize)));
}
}
}