VcstPolarWanderItem.h

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/*******************************************************************************
 *
 * NAME: VcstPolarWanderItem.h
 *
 * DESCRIPTION: This class is derived from the AdlCmnInputItem class. It represents
 * a HDF5 Polar Wander data item capable of converting an IDPS Polar Wander AUX
 * file into a format that is compatible with the interface requirements of the
 * common geolocation algorithm.
 *
 * It is adapted from a utility application developed by
 *
 * Author:      Richard P. Cember
 *              Computational Physics, Inc. and Integrated Program Office
 *
 * Modified by: Paul E. Meade
 *
 *  Description: A source file to convert the USNO polar motion "finals" file
 *               into the corresponding binary file that is read by the SDR processes,
 *               with shortName USNO-POLARWANDER-UT1 and fitting into struct type
 *               CMNGEO_POLAR_UT1_TYPE.  This file is a highly modified version of
 *               Build 1.5.0.18's ING/MSD/EarthOrientation/src/IngMsdEarth-
 *               Orientation_Converter.cpp and its corresponding header (.h) file.
 *
 *******************************************************************************/
 
#ifndef VcstPolarWanderItem_h
#define VcstPolarWanderItem_h
 
#include <string>
#include <VcstCmnGeoStructs.h>
#include <VcstLutInputItem.h>
 
class VcstPolarWanderItem : public VcstLutInputItem {
public:
 
    VcstPolarWanderItem();
 
    virtual ~VcstPolarWanderItem();
 
    static VcstPolarWanderItem* getInstance() {
        return new VcstPolarWanderItem;
    }
 
    virtual int getData();
 
protected:
 
    VcstPolarWanderItem(const VcstPolarWanderItem& right);
 
    VcstPolarWanderItem& operator=(const VcstPolarWanderItem& right);
 
    int readMetadata(std::string filepath);
 
    int ReadAsciiPolarWanderFile(std::string filepath, char* bufPtr);
 
    int ReadH5PolarWanderFile(std::string filepath, char* bufPtr);
 
    int fillInternalBuffer(char* bufPtr);
 
    void extractField(std::stringstream &converter, unsigned char* source,
            const unsigned int offset, const unsigned int length);
 
    struct finalsEntry {
        int year;
 
        int month;
 
        int day;
 
        double modifiedJulianDate;
 
        char polarFlag;
 
        double x_wan;
 
        double x_err;
 
        double y_wan;
 
        double y_err;
 
        char diffFlag;
 
        double UT1mUTC;
    };
 
    unsigned char* nativeBuffer_;
    int nativeBufferSize_;
 
};
 
#endif