1 files changed, 18 insertions, 30 deletions
diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm
index c8e084795e..1cb4779555 100644
--- a/platform/ios/src/MGLMapView.mm
+++ b/platform/ios/src/MGLMapView.mm
@@ -3423,36 +3423,24 @@ public:
 /// bounding box.
 - (mbgl::LatLngBounds)convertRect:(CGRect)rect toLatLngBoundsFromView:(nullable UIView *)view
 {
-    mbgl::LatLngBounds bounds = mbgl::LatLngBounds::empty();
-    bounds.extend([self convertPoint:rect.origin toLatLngFromView:view]);
-    bounds.extend([self convertPoint:{ CGRectGetMaxX(rect), CGRectGetMinY(rect) } toLatLngFromView:view]);
-    bounds.extend([self convertPoint:{ CGRectGetMaxX(rect), CGRectGetMaxY(rect) } toLatLngFromView:view]);
-    bounds.extend([self convertPoint:{ CGRectGetMinX(rect), CGRectGetMaxY(rect) } toLatLngFromView:view]);
-
-    // The world is wrapping if a point just outside the bounds is also within
-    // the rect.
-    mbgl::LatLng outsideLatLng;
-    if (bounds.west() > -180)
-    {
-        outsideLatLng = {
-            (bounds.south() + bounds.north()) / 2,
-            bounds.west() - 1,
-        };
-    }
-    else if (bounds.east() < 180)
-    {
-        outsideLatLng = {
-            (bounds.south() + bounds.north()) / 2,
-            bounds.east() + 1,
-        };
-    }
-
-    // If the world is wrapping, extend the bounds to cover all longitudes.
-    if (CGRectContainsPoint(rect, [self convertLatLng:outsideLatLng toPointToView:view]))
-    {
-        bounds.extend(mbgl::LatLng(bounds.south(), -180));
-        bounds.extend(mbgl::LatLng(bounds.south(),  180));
-    }
+    auto bounds = mbgl::LatLngBounds::empty();
+    auto topLeft = [self convertPoint:{ CGRectGetMinX(rect), CGRectGetMinY(rect) } toLatLngFromView:view];
+    auto topRight = [self convertPoint:{ CGRectGetMaxX(rect), CGRectGetMinY(rect) } toLatLngFromView:view];
+    auto bottomRight = [self convertPoint:{ CGRectGetMaxX(rect), CGRectGetMaxY(rect) } toLatLngFromView:view];
+    auto bottomLeft = [self convertPoint:{ CGRectGetMinX(rect), CGRectGetMaxY(rect) } toLatLngFromView:view];
+    
+    // If the bounds straddles the antimeridian, unwrap it so that one side
+    // extends beyond ±180° longitude.
+    auto center = [self convertPoint:{ CGRectGetMidX(rect), CGRectGetMidY(rect) } toLatLngFromView:view];
+    topLeft.unwrapForShortestPath(center);
+    topRight.unwrapForShortestPath(center);
+    bottomRight.unwrapForShortestPath(center);
+    bottomLeft.unwrapForShortestPath(center);
+    
+    bounds.extend(topLeft);
+    bounds.extend(topRight);
+    bounds.extend(bottomRight);
+    bounds.extend(bottomLeft);
 
     return bounds;
 }