Wrong coordinate when using GeoJson

[lichongting]

I'm using the ios library, and when I use the geojson below and create the source and layer, add to the mapview, I find that the coordinates of the object obtained through visibleFeatures are inconsistent with the coordinates in the json file

  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "id": "0",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [-46.826333, 42.906133],
            [-2.406825, 42.718861],
            [-50.655601, 17.202021],
            [-46.826333, 42.906133]
          ]
        ]
      }
    },
    {
      "type": "Feature",
      "id": "1",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [-26.91414, 12.390658],
            [-24.361294, 25.283212],
            [-1.385687, 27.455873],
            [-13.511702, 1.128148],
            [-26.91414, 12.390658]
          ]
        ]
      }
    },
    {
      "type": "Feature",
      "id": "2",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [-44.289847, 5.944882],
            [-50.075456, 12.225899],
            [-19.907636, -2.226367],
            [-44.289847, 5.944882]
          ]
        ]
      }
    }
  ]
}

And this is my code to get features:

            if let highLightFeatures = visibleFeatures as? [MLNShape] {
                var tempShapes = selectShapes.shapes
                for feature in highLightFeatures {
                    if let polygon = feature as? MLNPolygon{
                        print(polygon.coordinates[0])
                    }
                    if tempShapes.contains(feature) {
                        tempShapes.removeAll { $0 == feature }
                    } else {
                        tempShapes.append(feature)
                    }
                }
                selectShapes = MLNShapeCollection(shapes: tempShapes)
                control.updateHighlightSource(collection: selectShapes)
            } ```

it print like this:
``` CLLocationCoordinate2D(latitude: 42.90413649491737, longitude: -46.82373046875)```

There are some differences between it and the coordinates in the json file that cannot be ignored. I'm confused about this, can someone help to explain? Much appreciated