ClemensFischer/XAML-Map-Control
1
0
Fork 0
mirror of https://github.com/ClemensFischer/XAML-Map-Control.git synced 2026-04-08 07:55:13 +00:00
Code Issues Projects Releases Packages Wiki Activity

Added orthographic and stereographic projections

Browse source
This commit is contained in:
ClemensFischer 2026-01-16 20:23:28 +01:00
parent d825b50062
commit ae1a77679c
10 changed files with 457 additions and 371 deletions
Download patch file Download diff file Expand all files Collapse all files

26
MapProjections/Shared/ProjNetMapProjection.cs
View file

@ -58,31 +58,33 @@ namespace MapControl.Projections
? $"{field.Authority}:{field.AuthorityCode}"
: string.Empty;
if (CrsId == "EPSG:3857")
if (CrsId == MapControl.WebMercatorProjection.DefaultCrsId)
{
Type = MapProjectionType.WebMercator;
}
else
{
var projection = field.Projection ??
var name = field.Projection?.Name ??
throw new ArgumentException("CoordinateSystem.Projection must not be null.", nameof(value));
var centralMeridian = projection.GetParameter("central_meridian") ?? projection.GetParameter("longitude_of_origin");
var centralParallel = projection.GetParameter("central_parallel") ?? projection.GetParameter("latitude_of_origin");
var falseEasting = projection.GetParameter("false_easting");
var falseNorthing = projection.GetParameter("false_northing");
if ((centralMeridian == null || centralMeridian.Value == 0d) &&
(centralParallel == null || centralParallel.Value == 0d) &&
(falseEasting == null || falseEasting.Value == 0d) &&
(falseNorthing == null || falseNorthing.Value == 0d))
if (name.StartsWith("Mercator") ||
name.StartsWith("Equirectangular"))
{
Type = MapProjectionType.NormalCylindrical;
}
else if (projection.Name.StartsWith("UTM") || projection.Name.StartsWith("Transverse"))
else if (name.StartsWith("Transverse"))
{
Type = MapProjectionType.TransverseCylindrical;
}
else if (name.Contains("Orthographic") ||
name.Contains("Stereographic"))
{
Type = MapProjectionType.Azimuthal;
}
else
{
Type = MapProjectionType.Other;
}
}
}
}