mirror of
https://github.com/ClemensFischer/XAML-Map-Control.git
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52 lines
1.8 KiB
C#
52 lines
1.8 KiB
C#
// XAML Map Control - https://github.com/ClemensFischer/XAML-Map-Control
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// © 2022 Clemens Fischer
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// Licensed under the Microsoft Public License (Ms-PL)
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using System;
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namespace MapControl.Projections
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{
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public class Ed50UtmProjection : GeoApiProjection
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{
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public Ed50UtmProjection(int zone)
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{
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SetZone(zone);
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}
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protected void SetZone(int zone)
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{
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if (zone < 28 || zone > 38)
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{
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throw new ArgumentException($"Invalid UTM zone {zone}.", nameof(zone));
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}
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const string wktFormat
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= "PROJCS[\"ED50 / UTM zone {0}N\","
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+ "GEOGCS[\"ED50\","
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+ "DATUM[\"European_Datum_1950\","
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+ "SPHEROID[\"International 1924\",6378388,297,"
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+ "AUTHORITY[\"EPSG\",\"7022\"]],"
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+ "TOWGS84[-87,-98,-121,0,0,0,0],"
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+ "AUTHORITY[\"EPSG\",\"6230\"]],"
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+ "PRIMEM[\"Greenwich\",0,"
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+ "AUTHORITY[\"EPSG\",\"8901\"]],"
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+ "UNIT[\"degree\",0.0174532925199433,"
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+ "AUTHORITY[\"EPSG\",\"9122\"]],"
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+ "AUTHORITY[\"EPSG\",\"4230\"]],"
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+ "PROJECTION[\"Transverse_Mercator\"],"
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+ "PARAMETER[\"latitude_of_origin\",0],"
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+ "PARAMETER[\"central_meridian\",{1}],"
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+ "PARAMETER[\"scale_factor\",0.9996],"
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+ "PARAMETER[\"false_easting\",500000],"
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+ "PARAMETER[\"false_northing\",0],"
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+ "UNIT[\"metre\",1,"
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+ "AUTHORITY[\"EPSG\",\"9001\"]],"
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+ "AXIS[\"Easting\",EAST],"
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+ "AXIS[\"Northing\",NORTH],"
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+ "AUTHORITY[\"EPSG\",\"230{0}\"]]";
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WKT = string.Format(wktFormat, zone, 6 * zone - 183);
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}
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}
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}
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