How to display a marker/waypoint in a jxmapviewer

Question

I can't find a simple answer anywhere, so I guess I'm missing something:

I use openstreetmap in java, I made a GUI, I get a geopoint when clicking and I would like to display a marker where I clicked, I tried this but it doesn't work:

            GeoPosition gp2 = map.convertPointToGeoPosition(map.getMousePosition());

        Waypoint wp = new Waypoint() {

            @Override
            public GeoPosition getPosition() {
                // TODO Auto-generated method stub
                return gp2;
            }
        };

        Set<Waypoint> set = null;
        set.add(wp);
        WaypointPainter<Waypoint> wpp = new WaypointPainter<Waypoint>();
        wpp.setRenderer(new WaypointRenderer<Waypoint>() {

            @Override
            public void paintWaypoint(Graphics2D g, JXMapViewer map, Waypoint waypoint) {
                // TODO Auto-generated method stub

            }
        });
        wpp.setWaypoints(set);
        Map.this.getJXMapViewer().setOverlayPainter(wpp);
        Map.this.getJXMapViewer().revalidate();
        Map.this.getJXMapViewer().repaint();

any clue why?

Answer 1

because you just Override the method (paintWaypoint()) ,but you didn't modify the method.

so this works for me and will works for you also....

add following codes into your paintWaypoint() .this will draw a cross mark (X) on your mouse position.

 g.setColor(Color.RED);
 g.drawLine(-5,-5,+5,+5); 
 g.drawLine(-5,+5,+5,-5); 
 return true;