How to format GPS latitude and longitude?

Question

In android(java) when you get the current latitude and longitude using the function getlatitude() etc you get the coordinates in decimal format:

latit

Answer 1

Here's a Kotlin version, adapted from Martin Weber's answer. It also sets the correct hemisphere; N, S, W or E

object LocationConverter {

    fun latitudeAsDMS(latitude: Double, decimalPlace: Int): String {
        val direction = if (latitude > 0) "N" else "S"
        var strLatitude = Location.convert(latitude.absoluteValue, Location.FORMAT_SECONDS)
        strLatitude = replaceDelimiters(strLatitude, decimalPlace)
        strLatitude += " $direction"
        return strLatitude
    }

    fun longitudeAsDMS(longitude: Double, decimalPlace: Int): String {
        val direction = if (longitude > 0) "W" else "E"
        var strLongitude = Location.convert(longitude.absoluteValue, Location.FORMAT_SECONDS)
        strLongitude = replaceDelimiters(strLongitude, decimalPlace)
        strLongitude += " $direction"
        return strLongitude
    }

    private fun replaceDelimiters(str: String, decimalPlace: Int): String {
        var str = str
        str = str.replaceFirst(":".toRegex(), "°")
        str = str.replaceFirst(":".toRegex(), "'")
        val pointIndex = str.indexOf(".")
        val endIndex = pointIndex + 1 + decimalPlace
        if (endIndex < str.length) {
            str = str.substring(0, endIndex)
        }
        str += "\""
        return str
    }
}

Answer 2

Use This

public static String getFormattedLocationInDegree(double latitude, double longitude) {
try {
    int latSeconds = (int) Math.round(latitude * 3600);
    int latDegrees = latSeconds / 3600;
    latSeconds = Math.abs(latSeconds % 3600);
    int latMinutes = latSeconds / 60;
    latSeconds %= 60;

    int longSeconds = (int) Math.round(longitude * 3600);
    int longDegrees = longSeconds / 3600;
    longSeconds = Math.abs(longSeconds % 3600);
    int longMinutes = longSeconds / 60;
    longSeconds %= 60;
    String latDegree = latDegrees >= 0 ? "N" : "S";
    String lonDegrees = longDegrees >= 0 ? "E" : "W";

    return  Math.abs(latDegrees) + "°" + latMinutes + "'" + latSeconds
            + "\"" + latDegree +" "+ Math.abs(longDegrees) + "°" + longMinutes
            + "'" + longSeconds + "\"" + lonDegrees;
} catch (Exception e) {
    return ""+ String.format("%8.5f", latitude) + "  "
            + String.format("%8.5f", longitude) ;
}

}

Answer 3

Should be some math:

(int)37.33168                => 37

37.33168 % 1 = 0.33168
0.33168 * 60 = 19.905        => 19

19.905 % 1 = 0.905    
0.905 * 60                   => 54

same with -122 (add 360 if negative value)

EDIT: May be there is some API, which I don't know.

Refer From: How to find degree from the latitude value in android?

Convert Latitude and Longitude Values (Degrees) to Double . Java

Answer 4

to conver from decimals to degrees you can do as follow

String strLongitude = Location.convert(location.getLongitude(), Location.FORMAT_DEGREES);
String strLatitude = Location.convert(location.getLatitude(), Location.FORMAT_DEGREES);

reference is android developer site.

Edit

I have tried following thing and get the output:

strLongitude = Location.convert(location.getLongitude(), Location.FORMAT_DEGREES);
strLatitude = Location.convert(location.getLatitude(), Location.FORMAT_DEGREES);

OUTPUT : Long: 73.16584: Lat: 22.29924

strLongitude = Location.convert(location.getLongitude(), Location.FORMAT_SECONDS);
strLatitude = Location.convert(location.getLatitude(), Location.FORMAT_SECONDS);

OUTPUT : Long: 73:9:57.03876: Lat: 22:17:57.26472

strLongitude = Location.convert(location.getLongitude(), Location.FORMAT_MINUTES);
strLatitude = Location.convert(location.getLatitude(), Location.FORMAT_MINUTES);

OUTPUT : Long: 73:9.95065: Lat: 22:17.95441

Try different option as per your requirement

Answer 5

As already mentioned, there are some string manipulations required. I created the following helper class, which converts the location to DMS format and allows to specify the decimal places for the seconds:

import android.location.Location;
import android.support.annotation.NonNull;

public class LocationConverter {

    public static String getLatitudeAsDMS(Location location, int decimalPlace){
        String strLatitude = Location.convert(location.getLatitude(), Location.FORMAT_SECONDS);
        strLatitude = replaceDelimiters(strLatitude, decimalPlace);
        strLatitude = strLatitude + " N";
        return strLatitude;
    }

    public static String getLongitudeAsDMS(Location location, int decimalPlace){
        String strLongitude = Location.convert(location.getLongitude(), Location.FORMAT_SECONDS);
        strLongitude = replaceDelimiters(strLongitude, decimalPlace);
        strLongitude = strLongitude + " W";
        return strLongitude;
    }

    @NonNull
    private static String replaceDelimiters(String str, int decimalPlace) {
        str = str.replaceFirst(":", "°");
        str = str.replaceFirst(":", "'");
        int pointIndex = str.indexOf(".");
        int endIndex = pointIndex + 1 + decimalPlace;
        if(endIndex < str.length()) {
            str = str.substring(0, endIndex);
        }
        str = str + "\"";
        return str;
    }
}

Answer 6

I wanted something similar and after studying answers here and Wikipedia, found there is a standard for formatting coordinates, ISO 6709#Annex D which describes the desired text representation for coordinates, considering that and wanting to have a portable and compact implementation in Kotlin, I ended with this code hopefully would be useful for others,

import kotlin.math.abs
import java.util.Locale

// https://en.wikipedia.org/wiki/ISO_6709#Representation_at_the_human_interface_(Annex_D)
fun formatCoordinateISO6709(lat: Double, long: Double, alt: Double? = null) = listOf(
    abs(lat) to if (lat >= 0) "N" else "S", abs(long) to if (long >= 0) "E" else "W"
).joinToString(" ") {
    val degrees = it.first.toInt()
    val minutes = ((it.first - degrees) * 60).toInt()
    val seconds = ((it.first - degrees) * 3600 % 60).toInt()
    "%d°%02d′%02d″%s".format(Locale.US, degrees, minutes, seconds, it.second)
} + (alt?.let { " %s%.1fm".format(Locale.US, if (alt < 0) "−" else "", abs(alt)) } ?: "")