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Showing content from https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSCameraPosition below:

GoogleMaps Framework Reference | Maps SDK for iOS

GMSCameraPosition

@interface GMSCameraPosition : NSObject <NSCopying, NSMutableCopying>

An immutable class that aggregates all camera position parameters.

Location on the Earth towards which the camera points.

Declaration

Swift

var target: CLLocationCoordinate2D { get }

Objective-C

@property (nonatomic, readonly) CLLocationCoordinate2D target;

Zoom level. Zoom uses an exponentional scale, where zoom 0 represents the entire world as a 256 x 256 square. Each successive zoom level increases magnification by a factor of 2. So at zoom level 1, the world is 512x512, and at zoom level 2, the entire world is 1024x1024.
Declaration
Swift
```
var zoom: Float { get }
```
Objective-C
```
@property (nonatomic, readonly) float zoom;
```

Bearing of the camera, in degrees clockwise from true north.

Declaration

Swift

var bearing: CLLocationDirection { get }

Objective-C

@property (nonatomic, readonly) CLLocationDirection bearing;

The angle, in degrees, of the camera from the nadir (directly facing the Earth). 0 is straight down, 90 is parallel to the ground. Note that the maximum angle allowed is dependent on the zoom. You can think of it as a series of line segments as a function of zoom, rather than a step function. For zoom 16 and above, the maximum angle is 65 degrees. For zoom 10 and below, the maximum angle is 30 degrees.
Declaration
Swift
```
var viewingAngle: Double { get }
```
Objective-C
```
@property (nonatomic, readonly) double viewingAngle;
```
Designated initializer. Configures this GMSCameraPosition with all available camera properties. Building a GMSCameraPosition via this initializer (or by the following convenience constructors) will implicitly clamp camera values.
Declaration
Swift
```
init(target: CLLocationCoordinate2D, zoom: Float, bearing: CLLocationDirection, viewingAngle: Double)
```
Objective-C
```
- (nonnull instancetype)initWithTarget:(CLLocationCoordinate2D)target
                                  zoom:(float)zoom
                               bearing:(CLLocationDirection)bearing
                          viewingAngle:(double)viewingAngle;
```
Parameters target
Location on the earth towards which the camera points.
zoom
The zoom level near the center of the screen.
bearing
Bearing of the camera in degrees clockwise from true north.
viewingAngle
The angle, in degrees, of the camera angle from the nadir (directly facing the Earth)
Convenience initializer for GMSCameraPosition for a particular target and zoom level. This will set the bearing and viewingAngle properties of this camera to zero defaults (i.e., directly facing the Earth’s surface, with the top of the screen pointing north).
Declaration
Swift
```
init(target: CLLocationCoordinate2D, zoom: Float)
```
Objective-C
```
- (nonnull instancetype)initWithTarget:(CLLocationCoordinate2D)target
                                  zoom:(float)zoom;
```
Parameters target
Location on the earth towards which the camera points.
zoom
The zoom level near the center of the screen.
Convenience initializer for GMSCameraPosition for a particular latitidue, longitude and zoom level. This will set the bearing and viewingAngle properties of this camera to zero defaults (i.e., directly facing the Earth’s surface, with the top of the screen pointing north).
Declaration
Swift
```
init(latitude: CLLocationDegrees, longitude: CLLocationDegrees, zoom: Float)
```
Objective-C
```
- (nonnull instancetype)initWithLatitude:(CLLocationDegrees)latitude
                               longitude:(CLLocationDegrees)longitude
                                    zoom:(float)zoom;
```
Parameters latitude
The latitude component of the location towards which the camera points.
longitude
The latitude component of the location towards which the camera points.
zoom
The zoom level near the center of the screen.

Convenience initializer for GMSCameraPosition, with latitude/longitude and all other camera properties as per -initWithTarget:zoom:bearing:viewingAngle:.

Declaration

Swift

init(latitude: CLLocationDegrees, longitude: CLLocationDegrees, zoom: Float, bearing: CLLocationDirection, viewingAngle: Double)

Objective-C

- (nonnull instancetype)initWithLatitude:(CLLocationDegrees)latitude
                               longitude:(CLLocationDegrees)longitude
                                    zoom:(float)zoom
                                 bearing:(CLLocationDirection)bearing
                            viewingAngle:(double)viewingAngle;

Parameters latitude

The latitude component of the location towards which the camera points.

longitude

The latitude component of the location towards which the camera points.

zoom

The zoom level near the center of the screen.

bearing

Bearing of the camera in degrees clockwise from true north.

viewingAngle

The angle, in degrees, of the camera angle from the nadir (directly facing the Earth)

Convenience constructor for GMSCameraPosition for a particular target and zoom level. This will set the bearing and viewingAngle properties of this camera to zero defaults (i.e., directly facing the Earth’s surface, with the top of the screen pointing north).
Declaration
Swift
```
class func camera(withTarget target: CLLocationCoordinate2D, zoom: Float) -> Self
```
Objective-C
```
+ (nonnull instancetype)cameraWithTarget:(CLLocationCoordinate2D)target
                                    zoom:(float)zoom;
```

Convenience constructor for GMSCameraPosition, as per +cameraWithTarget:zoom:.

Declaration

Swift

class func camera(withLatitude latitude: CLLocationDegrees, longitude: CLLocationDegrees, zoom: Float) -> Self

Objective-C

+ (nonnull instancetype)cameraWithLatitude:(CLLocationDegrees)latitude
                                 longitude:(CLLocationDegrees)longitude
                                      zoom:(float)zoom;

Convenience constructor for GMSCameraPosition, with all camera properties as per +initWithTarget:zoom:bearing:viewingAngle:.

Declaration

Swift

class func camera(withTarget target: CLLocationCoordinate2D, zoom: Float, bearing: CLLocationDirection, viewingAngle: Double) -> Self

Objective-C

+ (nonnull instancetype)cameraWithTarget:(CLLocationCoordinate2D)target
                                    zoom:(float)zoom
                                 bearing:(CLLocationDirection)bearing
                            viewingAngle:(double)viewingAngle;

Convenience constructor for GMSCameraPosition, with latitude/longitude and all other camera properties as per +initWithTarget:zoom:bearing:viewingAngle:.

Declaration

Swift

class func camera(withLatitude latitude: CLLocationDegrees, longitude: CLLocationDegrees, zoom: Float, bearing: CLLocationDirection, viewingAngle: Double) -> Self

Objective-C

+ (nonnull instancetype)cameraWithLatitude:(CLLocationDegrees)latitude
                                 longitude:(CLLocationDegrees)longitude
                                      zoom:(float)zoom
                                   bearing:(CLLocationDirection)bearing
                              viewingAngle:(double)viewingAngle;

Get the zoom level at which meters distance, at given coord on Earth, correspond to the specified number of screen points.

For extremely large or small distances the returned zoom level may be smaller or larger than the minimum or maximum zoom level allowed on the camera.

This helper method is useful for building camera positions that contain specific physical areas on Earth.
Declaration
Swift
```
class func zoom(at coordinate: CLLocationCoordinate2D, forMeters meters: CLLocationDistance, perPoints points: CGFloat) -> Float
```
Objective-C
```
+ (float)zoomAtCoordinate:(CLLocationCoordinate2D)coordinate
                forMeters:(CLLocationDistance)meters
                perPoints:(CGFloat)points;
```

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