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New TransverseMercatorProjection implementation

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This commit is contained in:
ClemensFischer 2024-09-10 22:04:44 +02:00
parent caa25cb471
commit 9c69deb782
9 changed files with 357 additions and 23 deletions
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7
MapProjections/Shared/GeoApiProjection.cs
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@ -100,6 +100,13 @@ namespace MapControl.Projections
public IMathTransform MapToLocationTransform { get; private set; }
public override Point GetRelativeScale(Location location)
{
var k = coordinateSystem?.Projection?.GetParameter("scale_factor")?.Value ?? 1d;
return new Point(k, k);
}
public override Point? LocationToMap(Location location)
{
if (LocationToMapTransform == null)

27
MapProjections/Shared/GeoApiProjectionFactory.cs
View file

@ -21,36 +21,23 @@ namespace MapControl.Projections
public override MapProjection GetProjection(string crsId)
{
MapProjection projection = null;
switch (crsId)
{
case MapControl.WebMercatorProjection.DefaultCrsId:
projection = new WebMercatorProjection();
break;
return new WebMercatorProjection();
case MapControl.WorldMercatorProjection.DefaultCrsId:
projection = new WorldMercatorProjection();
break;
return new WorldMercatorProjection();
case Wgs84AutoUtmProjection.DefaultCrsId:
projection = new Wgs84AutoUtmProjection();
break;
case MapControl.Wgs84AutoUtmProjection.DefaultCrsId:
return new Wgs84AutoUtmProjection();
default:
projection = base.GetProjection(crsId);
break;
return base.GetProjection(crsId);
}
if (projection == null && crsId.StartsWith("EPSG:") && int.TryParse(crsId.Substring(5), out int epsgCode))
{
projection = GetProjection(epsgCode);
}
return projection;
}
public virtual MapProjection GetProjection(int epsgCode)
public override MapProjection GetProjection(int epsgCode)
{
switch (epsgCode)
{
@ -75,7 +62,7 @@ namespace MapControl.Projections
default:
return CoordinateSystemWkts.TryGetValue(epsgCode, out string wkt)
? new GeoApiProjection(wkt)
: null;
: base.GetProjection(epsgCode);
}
}

4
MapProjections/Shared/Wgs84UtmProjection.cs
View file

@ -45,11 +45,9 @@ namespace MapControl.Projections
/// </summary>
public class Wgs84AutoUtmProjection : Wgs84UtmProjection
{
public const string DefaultCrsId = "AUTO2:42001";
private readonly string autoCrsId;
public Wgs84AutoUtmProjection(string crsId = DefaultCrsId)
public Wgs84AutoUtmProjection(string crsId = MapControl.Wgs84AutoUtmProjection.DefaultCrsId)
: base(31, true)
{
autoCrsId = crsId;