codenameone draw approximate on map given point and radius

GoogleMapsTestApp.java

package com.mycompany.myapp; // change to your package
// goto line 42

import com.codename1.googlemaps.MapContainer;
import com.codename1.maps.Coord;
import com.codename1.maps.providers.GoogleMapsProvider;
import com.codename1.ui.Display;
import com.codename1.ui.FontImage;
import com.codename1.ui.Form;
import com.codename1.ui.layouts.BorderLayout;
import com.codename1.ui.plaf.Style;
import com.codename1.ui.plaf.UIManager;
import com.codename1.ui.util.Resources;
import com.codename1.util.MathUtil;

import java.io.IOException;

public class GoogleMapsTestApp {
    private static final String MAPS_KEY = "YOUR_KEY"; // Your maps key here
    private Form current;

    public void init(Object context) {
        try {
            Resources theme = Resources.openLayered("/theme");
            UIManager.getInstance().setThemeProps(theme.getTheme(theme.getThemeResourceNames()[0]));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void start() {
        if (current != null) {
            current.show();
            return;
        }
        Form hi = new Form("Native Maps Test");
        hi.setLayout(new BorderLayout());
        final MapContainer cnt = new MapContainer(new GoogleMapsProvider(MAPS_KEY));
        hi.addComponent(BorderLayout.CENTER, cnt);
        cnt.setCameraPosition(new Coord(31.2001, 29.9187));
        
        // HERE
        Coord src = new Coord(31.2001, 29.9187);

        Coord[] coords = drawAround(src.getLatitude(), src.getLongitude(), 100000);
        cnt.addPath(coords);


        Style s = new Style();
        s.setBgTransparency(0);
        s.setFgColor(0x007700);
        cnt.addMarker(FontImage.createMaterial(FontImage.MATERIAL_LOCATION_ON, s).toEncodedImage(), src, "", "", null);

        hi.show();
    }

    public void stop() {
        current = Display.getInstance().getCurrent();
    }

    public void destroy() {
    }

    public static Coord[] drawAround(double latitude, double longitude, double radiusKm) {
        Coord[] locs = new Coord[361];
        double lat1 = latitude * Math.PI / 180.0;
        double lon1 = longitude * Math.PI / 180.0;
        double d = radiusKm / 6371;
        for (int i = 0; i <= 360; i++) {
            double tc = (i / 90) * Math.PI / 2;
            double lat = MathUtil.asin(Math.sin(lat1) * Math.cos(d) + Math.cos(lat1) * Math.sin(d) * Math.cos(tc));
            lat = 180.0 * lat / Math.PI;
            double lon;
            if (Math.cos(lat1) == 0) {
                lon = longitude;
            } else {
                lon = ((lon1 - MathUtil.asin(Math.sin(tc) * Math.sin(d) / Math.cos(lat1)) + Math.PI) % (2 * Math.PI)) - Math.PI;
            }
            lon = 180.0 * lon / Math.PI;
            locs[i] = new Coord(lat, lon);
        }
        return locs;
    }
}