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package com.mapbox.mapboxgl.lib.geometry;
import android.location.Location;
import android.os.Parcel;
import android.os.Parcelable;
import com.mapbox.mapboxgl.lib.constants.GeoConstants;
import com.mapbox.mapboxgl.lib.constants.MathConstants;
import java.io.Serializable;
public class LatLng implements ILatLng, GeoConstants, MathConstants, Parcelable, Serializable {
public static final Parcelable.Creator<LatLng> CREATOR = new Parcelable.Creator<LatLng>() {
public LatLng createFromParcel(Parcel in) {
return new LatLng(in);
}
public LatLng[] newArray(int size) {
return new LatLng[size];
}
};
private double latitude;
private double longitude;
private double altitude = 0.0;
/**
* Construct a new latitude, longitude point given float arguments
* @param latitude Latitude in degrees
* @param longitude Longitude in degress
*/
public LatLng(double latitude, double longitude) {
this.latitude = latitude;
this.longitude = longitude;
}
/**
* Construct a new latitude, longitude, altitude point given float arguments
* @param latitude Latitude in degrees
* @param longitude Longitude in degress
* @param altitude Altitude in meters
*/
public LatLng(final double latitude, final double longitude, final double altitude) {
this.latitude = latitude;
this.longitude = longitude;
this.altitude = altitude;
}
/**
* Transform a Location into a LatLng point
* @param location Android Location
*/
public LatLng(final Location location) {
this(location.getLatitude(), location.getLongitude(), location.getAltitude());
}
/**
* Clone an existing latitude longitude point
* @param aLatLng LatLng
*/
public LatLng(final LatLng aLatLng) {
this.latitude = aLatLng.latitude;
this.longitude = aLatLng.longitude;
this.altitude = aLatLng.altitude;
}
protected LatLng(Parcel in) {
longitude = in.readDouble();
latitude = in.readDouble();
altitude = in.readDouble();
}
@Override
public double getLatitude() {
return latitude;
}
@Override
public double getLongitude() {
return longitude;
}
@Override
public double getAltitude() {
return altitude;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
LatLng latLng = (LatLng) o;
if (Double.compare(latLng.altitude, altitude) != 0) return false;
if (Double.compare(latLng.latitude, latitude) != 0) return false;
if (Double.compare(latLng.longitude, longitude) != 0) return false;
return true;
}
@Override
public int hashCode() {
int result;
long temp;
temp = Double.doubleToLongBits(latitude);
result = (int) (temp ^ (temp >>> 32));
temp = Double.doubleToLongBits(longitude);
result = 31 * result + (int) (temp ^ (temp >>> 32));
temp = Double.doubleToLongBits(altitude);
result = 31 * result + (int) (temp ^ (temp >>> 32));
return result;
}
@Override
public String toString() {
return "LatLng [longitude=" + longitude + ", latitude=" + latitude + ", altitude=" + altitude + "]";
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeDouble(longitude);
out.writeDouble(latitude);
out.writeDouble(altitude);
}
/**
* Calculate distance between two points
* @param other Other LatLng to compare to
* @return distance in meters
*/
public double distanceTo(final LatLng other) {
final double a1 = DEG2RAD * this.latitude;
final double a2 = DEG2RAD * this.longitude;
final double b1 = DEG2RAD * other.getLatitude();
final double b2 = DEG2RAD * other.getLongitude();
final double cosa1 = Math.cos(a1);
final double cosb1 = Math.cos(b1);
final double t1 = cosa1 * Math.cos(a2) * cosb1 * Math.cos(b2);
final double t2 = cosa1 * Math.sin(a2) * cosb1 * Math.sin(b2);
final double t3 = Math.sin(a1) * Math.sin(b1);
final double tt = Math.acos(t1 + t2 + t3);
return RADIUS_EARTH_METERS * tt;
}
}
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