Added orthographic and stereographic projections

2026-04-07 23:45:05 +00:00 · 2026-01-16 20:23:28 +01:00 · 2026-01-16 20:23:28 +01:00 · ae1a77679c
commit ae1a77679c
parent d825b50062
10 changed files with 457 additions and 371 deletions
--- a/MapProjections/Shared/Wgs84OrthographicProjection.cs
+++ b/MapProjections/Shared/Wgs84OrthographicProjection.cs
@ -0,0 +1,36 @@
+
+using System.Globalization;
+
+namespace MapControl.Projections
+{
+    public class Wgs84OrthographicProjection : ProjNetMapProjection
+    {
+        public Wgs84OrthographicProjection()
+        {
+            Center = base.Center;
+        }
+
+        public override Location Center
+        {
+            get => base.Center;
+            protected set
+            {
+                base.Center = value;
+
+                var wktFormat =
+                    "PROJCS[\"WGS 84 / World Mercator\"," +
+                    WktConstants.GeogCsWgs84 + "," +
+                    "PROJECTION[\"Orthographic\"]," +
+                    "PARAMETER[\"latitude_of_origin\",{0:0.########}]," +
+                    "PARAMETER[\"central_meridian\",{1:0.########}]," +
+                    "UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]]," +
+                    "AXIS[\"Easting\",EAST]," +
+                    "AXIS[\"Northing\",NORTH]" +
+                    "AUTHORITY[\"AUTO2\",\"42003\"]]";
+
+                CoordinateSystemWkt = string.Format(
+                    CultureInfo.InvariantCulture, wktFormat, value.Latitude, value.Longitude);
+            }
+        }
+    }
+}