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/***********************************************/
/**
* @file graceL1b2Vector.cpp
*
* @brief Read GRACE L1B data.
*
* @author Torsten Mayer-Guerr
* @date 2005-01-19
*
*/
/***********************************************/
// Latex documentation
#define DOCSTRING docstring
static const char *docstring = R"(
This program reads vector orientation data (positions of instruments in the satellite frame) from the GRACE SDS format
(VGB1B, VGN1B, VGO1B, VKB1B, or VCM1B).
The \configFile{outputfileVector}{matrix} is a $(3n\times1)$ matrix containing $(x,y,z)$ for each record.
The GRACE SDS format is described in "GRACE Level 1B Data Product User Handbook JPL D-22027"
given at \url{http://podaac.jpl.nasa.gov/grace/documentation.html}.
)";
/***********************************************/
#include "programs/program.h"
#include "files/fileMatrix.h"
#include "fileGrace.h"
/***** CLASS ***********************************/
/** @brief Read GRACE L1B data.
* @ingroup programsConversionGroup */
class GraceL1b2Vector
{
public:
void run(Config &config, Parallel::CommunicatorPtr comm);
};
GROOPS_REGISTER_PROGRAM(GraceL1b2Vector, SINGLEPROCESS, "read GRACE L1B data (VGB1B, VGN1B, VGO1B, VKB1B, or VCM1B)", Conversion, Grace, Matrix)
/***********************************************/
void GraceL1b2Vector::run(Config &config, Parallel::CommunicatorPtr /*comm*/)
{
try
{
FileName fileNameOut, fileNameIn;
readConfig(config, "outputfileVector", fileNameOut, Config::MUSTSET, "", "");
readConfig(config, "inputfile", fileNameIn, Config::MUSTSET, "", "VGB1B, VGN1B, VGO1B, VKB1B, or VCM1B");
if(isCreateSchema(config)) return;
// =============================================
logStatus<<"read file <"<<fileNameIn<<">"<<Log::endl;
UInt numberOfRecords;
FileInGrace file(fileNameIn, numberOfRecords);
Vector vec(3*numberOfRecords);
for(UInt i=0; i<numberOfRecords; i++)
{
Int32 seconds;
Char GRACE_id;
Double mag, x, y, z;
Byte qualflg;
file>>seconds>>GRACE_id>>mag>>x>>y>>z>>FileInGrace::flag(qualflg);
const Time time = mjd2time(51544.5) + seconds2time(seconds);
logInfo<<time.dateTimeStr()<<", flag = "<<Int(qualflg)<<Log::endl;
vec(3*i+0) = mag*x;
vec(3*i+1) = mag*y;
vec(3*i+2) = mag*z;
}
// =============================================
if(!fileNameOut.empty())
{
logInfo<<"write data to <"<<fileNameOut<<">"<<Log::endl;
writeFileMatrix(fileNameOut, vec);
}
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
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