Merge branch 'dev' into idf-mobilite-net

This commit is contained in:
Bigeon Emmanuel 2024-02-14 14:20:29 +01:00
commit 7cd5c5f70d

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/**
*
*/
package fr.u_paris.gla.project.utils;
/** A utility class for computations related to GPS.
*
* @author Emmanuel Bigeon */
public final class GPS {
/** The (approximated) earth radius in km. */
private static final double EARTH_RADIUS = 6_370.0;
/** Hidden constructor for tool class */
private GPS() {
// Tool class
}
/** Convert a degree angle value in a radian angle one.
*
* @param degree the degree value
* @return the radian value */
private static final double degreeToRadian(double degree) {
return degree / 180 * Math.PI;
}
/** Compute the flying distance between two GPS positions.
*
* @param latitude1 the latitude of the first position
* @param longitude1 the longitude of the first position
* @param latitude2 the latitude of the second position
* @param longitude2 the longitude of the second position
* @return the flying distance */
public static double distance(double latitude1, double longitude1, double latitude2,
double longitude2) {
double deltaLatitude = degreeToRadian(latitude2 - latitude1);
double deltaLongitude = degreeToRadian(longitude2 - longitude1);
double a = Math.pow(Math.sin(deltaLatitude / 2), 2)
+ Math.pow(Math.sin(deltaLongitude), 2) * Math.cos(latitude1)
* Math.cos(latitude2);
return EARTH_RADIUS * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
}
}