/* * Created on Jun 16, 2004 * */package org.placelab.core;import org.placelab.collections.HashMap;/** *  * */public class ThreeDCoordinate extends TwoDCoordinate {	// assumed to be above sea level	private double elevation;	// used to tell if the elevation is known or guessed	private boolean isElevationKnown = false;	public static final ThreeDCoordinate NULL=new ThreeDCoordinate(Double.NaN, Double.NaN, Double.NaN);	public ThreeDCoordinate() {		super();		elevation = Double.NaN;	}	public ThreeDCoordinate(double lat, double lon, double altitude) {		super(lat, lon);		elevation = altitude;		isElevationKnown = true;	}	public ThreeDCoordinate(ThreeDCoordinate c) {		super(c.getLatitude(), c.getLongitude());		elevation = c.getElevation();		isElevationKnown = c.getIsElevationKnown();	}	public void constructFromMap(HashMap map) {		setLatitude(java.lang.Double.parseDouble((String)map.get(Types.LATITUDE)));		setLongitude(java.lang.Double.parseDouble((String)map.get(Types.LONGITUDE)));		String temp = (String)map.get(Types.ELEVATION);		if(temp == null) {			elevation = 0.0;		}		else {			elevation = java.lang.Double.parseDouble(temp);			isElevationKnown = true;		}	}	public double getElevation() {		return elevation;	}	public boolean getIsElevationKnown() {		return isElevationKnown;	}	public boolean isNull() {		return (super.isNull() ? (elevation == Double.NaN || elevation == 0.0) : false);	}	public String toString() {          return super.toString() + "," + elevation;        }	public int distanceFromInMeters(Coordinate c2) {	    return (int)distanceFrom((ThreeDCoordinate)c2);	}	public String distanceFromAsString(Coordinate c2) {	    return ""+distanceFrom((ThreeDCoordinate)c2);	}	public double distanceFrom(ThreeDCoordinate c2) {		return (CoordinateTranslator.T.distance(this, c2));	}	public double zDistanceFrom(ThreeDCoordinate c2) {		return (CoordinateTranslator.T.zDistance(this, c2));	}}