GoogleMaps Framework Reference

  • GMSVisibleRegion defines the visible area of a map's camera as a polygon, which can be a trapezoid or a rectangle depending on the camera's tilt.

  • This polygon is represented by four points: nearLeft, nearRight, farLeft, and farRight, which correspond to the corners of the visible area.

  • Each of these points is expressed as a CLLocationCoordinate2D indicating its geographical location.

  • When the camera is tilted, the polygon representing the visible region will appear as a trapezoid with the smaller side closer to the viewpoint.

GMSVisibleRegion

struct {}

GMSVisibleRegion contains the four points defining the polygon that is visible in a map’s camera.

This polygon can be a trapezoid instead of a rectangle, because a camera can have tilt. If the camera is directly over the center of the camera, the shape is rectangular, but if the camera is tilted, the shape will appear to be a trapezoid whose smallest side is closest to the point of view.

  • Bottom left corner of the camera.

    Declaration

    Swift

    var nearLeft: CLLocationCoordinate2D

    Objective-C

    CLLocationCoordinate2D nearLeft

  • Bottom right corner of the camera.

    Declaration

    Swift

    var nearRight: CLLocationCoordinate2D

    Objective-C

    CLLocationCoordinate2D nearRight

  • Far left corner of the camera.

    Declaration

    Swift

    var farLeft: CLLocationCoordinate2D

    Objective-C

    CLLocationCoordinate2D farLeft

  • Far right corner of the camera.

    Declaration

    Swift

    var farRight: CLLocationCoordinate2D

    Objective-C

    CLLocationCoordinate2D farRight