[all] Make LatLng coordinates read-only

2 files changed, 5 insertions, 3 deletions

diff --git a/src/mbgl/map/transform.cpp b/src/mbgl/map/transform.cpp
index 71d216f1ed..c30b8d9687 100644
--- a/src/mbgl/map/transform.cpp
+++ b/src/mbgl/map/transform.cpp
@@ -103,7 +103,9 @@ void Transform::easeTo(const CameraOptions& camera, const AnimationOptions& anim
     // If gesture in progress, we transfer the world rounds from the end
     // longitude into start, so we can guarantee the "scroll effect" of rounding
     // the world while assuring the end longitude remains wrapped.
-    if (isGestureInProgress()) startLatLng.longitude -= unwrappedLatLng.longitude - latLng.longitude;
+    if (isGestureInProgress()) {
+        startLatLng = LatLng(startLatLng.latitude(), startLatLng.longitude() - (unwrappedLatLng.longitude() - latLng.longitude()));
+    }
     // Find the shortest path otherwise.
     else startLatLng.unwrapForShortestPath(latLng);
 
diff --git a/src/mbgl/map/transform_state.cpp b/src/mbgl/map/transform_state.cpp
index f7419fa5b4..3fae7b205c 100644
--- a/src/mbgl/map/transform_state.cpp
+++ b/src/mbgl/map/transform_state.cpp
@@ -325,10 +325,10 @@ void TransformState::setLatLngZoom(const LatLng &latLng, double zoom) {
     Cc = newWorldSize / util::M2PI;
 
     const double m = 1 - 1e-15;
-    const double f = util::clamp(std::sin(util::DEG2RAD * latLng.latitude), -m, m);
+    const double f = util::clamp(std::sin(util::DEG2RAD * latLng.latitude()), -m, m);
 
     ScreenCoordinate point = {
-        -latLng.longitude * Bc,
+        -latLng.longitude() * Bc,
         0.5 * Cc * std::log((1 + f) / (1 - f)),
     };
     setScalePoint(newScale, point);