How to get coordinates from the map

Since we are talking about querying a map, let's quickly see the important part of the code behind:

1) the MapMouseListener has to be implemented by your tool
2) the class implementing it has to be added as listener to the mapdisplay:

       IMap map = ApplicationGIS.getActiveMap();
       ((ViewportPane) map.getRenderManager().getMapDisplay()).addMouseMotionListener(implementingClass);

3) your implementing class will have some nice method, one of which should look like:

    public void mouseReleased( MapMouseEvent event ) {
        IMap map = ApplicationGIS.getActiveMap();
        if (map != null) {
            // event.x, event.y gives the pixel position of the mouse in the map
            // next ask for the world coordinates of the clicked point
            Coordinate coord = map.getViewportModel().pixelToWorld(event.x, event.y);
            // and here the pixel position of the mouse on the screen
            Point mouse = getDisplay().getCursorLocation();

                // do something with it :)
        }
    }