diff --git a/MapControl/Shared/MapBase.cs b/MapControl/Shared/MapBase.cs
index 2e378b6e..8dbeb50c 100644
--- a/MapControl/Shared/MapBase.cs
+++ b/MapControl/Shared/MapBase.cs
@@ -794,7 +794,7 @@ namespace MapControl
 
                         if (resetTransformCenter)
                         {
-                            // Check if transform center moved across the dateline.
+                            // Check if transform center has moved across 180° longitude.
                             //
                             transformCenterChanged = Math.Abs(center.Longitude - transformCenter.Longitude) > 180d;
 
@@ -814,7 +814,7 @@ namespace MapControl
 
                 SetViewScale(ViewTransform.Scale);
 
-                // Check if view center moved across the dateline.
+                // Check if view center has moved across 180° longitude.
                 //
                 transformCenterChanged = transformCenterChanged || Math.Abs(Center.Longitude - centerLongitude) > 180d;
                 centerLongitude = Center.Longitude;
diff --git a/MapControl/Shared/MapProjection.cs b/MapControl/Shared/MapProjection.cs
index 07c24f3f..840c070e 100644
--- a/MapControl/Shared/MapProjection.cs
+++ b/MapControl/Shared/MapProjection.cs
@@ -130,15 +130,14 @@ namespace MapControl
         /// </summary>
         public virtual string GetBboxValue(MapRect mapRect)
         {
-            // Truncate bounding box to 1 cm precision.
+            // Truncate values for seamless stitching of two WMS images at 180° longitude,
+            // as done in WmsImageLayer.GetImageAsync.
             //
-            const double p = 0.01;
-
             return string.Format(CultureInfo.InvariantCulture, "{0:F2},{1:F2},{2:F2},{3:F2}",
-                p * Math.Ceiling(mapRect.XMin / p),
-                p * Math.Ceiling(mapRect.YMin / p),
-                p * Math.Floor(mapRect.XMax / p),
-                p * Math.Floor(mapRect.YMax / p));
+                0.01 * Math.Ceiling(100d * mapRect.XMin),
+                0.01 * Math.Ceiling(100d * mapRect.YMin),
+                0.01 * Math.Floor(100d * mapRect.XMax),
+                0.01 * Math.Floor(100d * mapRect.YMax));
         }
     }
 }
diff --git a/MapControl/Shared/ViewportChangedEventArgs.cs b/MapControl/Shared/ViewportChangedEventArgs.cs
index 9af182d3..354b656b 100644
--- a/MapControl/Shared/ViewportChangedEventArgs.cs
+++ b/MapControl/Shared/ViewportChangedEventArgs.cs
@@ -22,7 +22,7 @@ namespace MapControl
         public bool ProjectionChanged { get; }
 
         /// <summary>
-        /// Indicates that the view transform center has moved across the dateline.
+        /// Indicates that the view transform center has moved across 180° longitude.
         /// Used to control when a MapTileLayer should be updated immediately.
         /// </summary>
         public bool TransformCenterChanged { get; }
diff --git a/MapProjections/Shared/GeoApiProjection.cs b/MapProjections/Shared/GeoApiProjection.cs
index 8ad7d922..6550cc21 100644
--- a/MapProjections/Shared/GeoApiProjection.cs
+++ b/MapProjections/Shared/GeoApiProjection.cs
@@ -8,7 +8,6 @@ using GeoAPI.Geometries;
 using ProjNet.CoordinateSystems;
 using ProjNet.CoordinateSystems.Transformations;
 using System;
-using System.Globalization;
 #if !WINUI && !UWP
 using System.Windows;
 #endif
@@ -127,11 +126,5 @@ namespace MapControl.Projections
 
             return new Location(coordinate.Y, coordinate.X);
         }
-
-        public override string GetBboxValue(MapRect rect)
-        {
-            return string.Format(CultureInfo.InvariantCulture,
-                "{0},{1},{2},{3}", rect.XMin, rect.YMin, rect.XMax, rect.YMax);
-        }
     }
 }