Core Location Data Types Reference

Overview

This document describes the data types found in the Core Location framework.

Data Types

CLLocationAccuracy

Represents the accuracy of a coordinate value in meters.

typedef double CLLocationAccuracy;

CLLocationCoordinate2D

A structure that contains a geographical coordinate using the WGS 84 reference frame.

typedef struct {
   CLLocationDegrees latitude;
   CLLocationDegrees longitude;
} CLLocationCoordinate2D;

Fields

latitude

The latitude in degrees. Positive values indicate latitudes north of the equator. Negative values indicate latitudes south of the equator.

longitude

The longitude in degrees. Measurements are relative to the zero meridian, with positive values extending east of the meridian and negative values extending west of the meridian.

CLLocationDegrees

Represents a latitude or longitude value specified in degrees.

typedef double CLLocationDegrees;

CLLocationDirection

Represents a direction that is measured in degrees relative to true north.

typedef double CLLocationDirection;

CLLocationDistance

A distance measurement (in meters) from an existing location.

typedef double CLLocationDistance;

CLLocationSpeed

Represents the speed at which the device is moving in meters per second.

typedef double CLLocationSpeed;