/*
 * GMUWorldWindCommands.java
 *
 * Created on October 13, 2007, 2:45 PM
 */

package gmu.WorldWindGPS;

/**
 * These are the basic commands usable inside WorldWindAppFrame.
 *
 * @author dfleck
 */
public interface GMUWorldWindCommands {
    
    
   /** Zoom to a specific place on the globe and zoom in. */ 
   public void goToGPS(double lat, double lon, double zoom);
   
   /** Return the latitude of your current location. */
   public double getCurrentLatitude();
   
   /** Return the longitude of your current location. */
   public double getCurrentLongitude();
   
   /** Set the altitude of the current view to the number of meters 
    *  specified in the parameter.
    */
   public void setAltitude(double alt);
  
   /** Set the text in the Info box. This can include some 
    *  basic HTML markup if desired. 
    */
   public void setInfoText(String text);
   
   
   /** Add the specified listener. */
   public void addPositionListener(GMUPositionListener pl);
   
   /** Return the distanct between points (lat1, lon1) and (lat2, lon2) in
    *  kilometers.
    */
   public double getDistance(double lat1, double lon1, double lat2, double lon2);
    
    
   /** Use to register a listener for the button GetDistance. */
   public void addDistanceListener(DistanceListener dl);
}