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Updated TransverseMercatorProjection

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ClemensFischer 2026-01-23 10:43:31 +01:00
parent 90cb418a41
commit 043b48d1d6
2 changed files with 145 additions and 105 deletions
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15
MapControl/Shared/MapGraticule.cs
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@ -212,30 +212,19 @@ namespace MapControl
var latPoints = latSegments * interpolationCount;
var centerLon = Math.Round(ParentMap.Center.Longitude / lineDistance) * lineDistance;
var westLimit = centerLon - 180d;
var eastLimit = centerLon + 180d;
if (ParentMap.MapProjection.Type == MapProjectionType.TransverseCylindrical)
{
westLimit = ParentMap.MapProjection.Center.Longitude - 15d;
eastLimit = ParentMap.MapProjection.Center.Longitude + 15d;
westLimit = Math.Floor(westLimit / lineDistance) * lineDistance;
eastLimit = Math.Ceiling(eastLimit / lineDistance) * lineDistance;
}
var minLon = centerLon - lineDistance;
var maxLon = centerLon + lineDistance;
if (DrawMeridian(figures, centerLon, minLat, interpolationDistance, latPoints))
{
while (DrawMeridian(figures, minLon, minLat, interpolationDistance, latPoints) &&
minLon > westLimit)
minLon > centerLon - 180d)
{
minLon -= lineDistance;
}
while (DrawMeridian(figures, maxLon, minLat, interpolationDistance, latPoints) &&
maxLon < eastLimit)
maxLon < centerLon + 180d)
{
maxLon += lineDistance;
}