#ifndef __SOFIE_EPHEMERIS_DATA_2006_08_14__
#define __SOFIE_EPHEMERIS_DATA_2006_08_14__
/**

    @file EphemData
    @author Brian Magill
    @creationdate 8/14/2006

    $Date:$
    $Revision:$

    @copyright
     (©) Copyright 2006 by GATS Inc.
     11864 Canon Blvd., Suite 101, Newport News, VA 23606

     All Rights Reserved. No part of this software or publication may be
     reproduced, stored in a retrieval system, or transmitted, in any form
     or by any means, electronic, mechanical, photocopying, recording, or
     otherwise without the prior written permission of GATS Inc.
    
    @brief contains ephemeris information: 
    
*/

#include <valarray>
 
class EphemData
{

private:

    std::valarray<double> altitude;     // tangent altitude
    std::valarray<double> latitude;     // latitude
    std::valarray<double> longitude;    // longitude
    bool hasData;    

public:

    EphemData() {hasData = false;};

    EphemData(std::valarray<double> z, std::valarray<double> lat, 
                std::valarray<double> lon):altitude(z),
                latitude(lat),longitude(lon), hasData(true)  {};

    EphemData(EphemData const &rhs)
        {
        altitude.resize(rhs.altitude.size());
        latitude.resize(rhs.latitude.size());
        longitude.resize(rhs.longitude.size());
        
        altitude = rhs.altitude;
        latitude = rhs.latitude;
        longitude = rhs.longitude;
        hasData = rhs.hasData;    
        }  

    EphemData& operator = (EphemData const &rhs)
        {
        if(&rhs == this)
            return *this;

        altitude.resize(rhs.altitude.size());
        latitude.resize(rhs.latitude.size());
        longitude.resize(rhs.longitude.size());
            
        altitude = rhs.altitude;
        latitude = rhs.latitude;
        longitude = rhs.longitude;
        hasData = rhs.hasData;  
        
        return *this;  
        }  

    ~EphemData() {};

    bool HasData() const { return hasData; };
    
    double getLat(double z) const;
    
    double getLon(double z) const;
};    


#endif