/*
 * Copyright 1998-2014 University Corporation for Atmospheric Research/Unidata
 *
 *   Portions of this software were developed by the Unidata Program at the
 *   University Corporation for Atmospheric Research.
 *
 *   Access and use of this software shall impose the following obligations
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 *   any fee or cost, to use, copy, modify, alter, enhance and distribute
 *   this software, and any derivative works thereof, and its supporting
 *   documentation for any purpose whatsoever, provided that this entire
 *   notice appears in all copies of the software, derivative works and
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 */
package ucar.unidata.geoloc;

/**
 * A location on the Earth.
 *
 * @author caron
 */
public class EarthLocationImpl implements EarthLocation {
  protected double lat, lon, alt;

  /**
   * latitude in decimal degrees north
   * @return latitude in decimal degrees north
   */
  public double getLatitude() { return lat; }

  /**
   * longitude in decimal degrees east
   * @return longitude in decimal degrees east
   */
  public double getLongitude() { return lon; }

  /**
   * altitude in meters;  missing = NaN.
   * @return altitude in meters;  missing = NaN.
   */
  public double getAltitude() { return alt; }

  /**
   * Get the lat/lon location
   * @return lat/lon location
   */
  public LatLonPoint getLatLon() {
    return new LatLonPointImpl( lat, lon);
  }

  public boolean isMissing() {
    return Double.isNaN(lat) || Double.isNaN(lon);
  }

  protected EarthLocationImpl() {}

  public EarthLocationImpl( double lat, double lon, double alt) {
    this.lat = lat;
    this.lon = lon;
    this.alt = alt;
  }

  protected void setLatitude(double lat) { this.lat = lat; }
  protected void setLongitude(double lon) { this.lon = lon; }
  protected void setAltitude(double alt) { this.alt = alt; }

  public String toString() { return "lat="+lat+" lon="+lon+" alt="+alt; }


}