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| -rw-r--r-- | src/mbgl/map/transform.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mbgl/map/transform.cpp b/src/mbgl/map/transform.cpp index 759e6b4e0f..badd5d89a3 100644 --- a/src/mbgl/map/transform.cpp +++ b/src/mbgl/map/transform.cpp @@ -344,6 +344,16 @@ void Transform::flyTo(const CameraOptions &options) { return; } + // If a path crossing the antemeridian would be shorter, extend the final + // coordinate so that interpolating between the two endpoints will cross it. + if (std::abs(startLatLng.longitude) + std::abs(latLng.longitude) > 180) { + if (startLatLng.longitude > 0 && latLng.longitude < 0) { + latLng.longitude += 360; + } else if (startLatLng.longitude < 0 && latLng.longitude > 0) { + latLng.longitude -= 360; + } + } + const PrecisionPoint startPoint = { state.lngX(startLatLng.longitude), state.latY(startLatLng.latitude), |