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/***********************************************/
/**
* @file jplAscii2Ephemerides.cpp
*
* @brief Read JPL DExxx ephemerides.
*
* @author Torsten Mayer-Guerr
* @date 2020-08-11
*
*/
/***********************************************/
// Latex documentation
#define DOCSTRING docstring
static const char *docstring = R"(
Read JPL DExxx (ASCII) ephemerides.
)";
/***********************************************/
#include "programs/program.h"
#include "base/string.h"
#include "inputOutput/file.h"
#include "files/fileEphemerides.h"
/***** CLASS ***********************************/
/** @brief Read JPL DExxx ephemerides.
* @ingroup programsConversionGroup */
class JplAscii2Ephemerides
{
public:
void run(Config &config, Parallel::CommunicatorPtr comm);
};
GROOPS_REGISTER_PROGRAM(JplAscii2Ephemerides, SINGLEPROCESS, "JPL DExxx (ASCII) ephemerides", Conversion)
/***********************************************/
void JplAscii2Ephemerides::run(Config &config, Parallel::CommunicatorPtr /*comm*/)
{
try
{
FileName fileNameOut, fileNameHeader;
std::vector<FileName> fileNamesIn;
readConfig(config, "outputfileEphemerides", fileNameOut, Config::MUSTSET, "JPL_DE432.dat", "");
readConfig(config, "inputfileHeader", fileNameHeader, Config::MUSTSET, "header.432_571", "");
readConfig(config, "inputfileData", fileNamesIn, Config::MUSTSET, "ascp01950.432", "");
if(isCreateSchema(config)) return;
// ==============================
auto readDouble = [](InFile &file)
{
std::string str;
file>>str;
return String::toDouble(str);
};
logStatus<<"read header file <"<<fileNameHeader<<">"<<Log::endl;
Double earthMoonRatio = 0;
std::vector<UInt> index(15), subintervals(15), components(15), degree(15);
InFile file(fileNameHeader);
std::string line;
while(std::getline(file, line))
{
if(String::startsWith(line, "GROUP 1041")) // constants
{
UInt count;
file>>count;
for(UInt i=0; i<11; i++)
earthMoonRatio = readDouble(file);
}
if(String::startsWith(line, "GROUP 1050")) // index table
{
for(UInt i=0; i<index.size(); i++)
file>>index.at(i);
for(UInt i=0; i<degree.size(); i++)
file>>degree.at(i);
for(UInt i=0; i<subintervals.size(); i++)
file>>subintervals.at(i);
components = {3, // MERCURY
3, // VENUS
3, // EARTH
3, // MARS
3, // JUPITER
3, // SATURN
3, // URANUS
3, // NEPTUNE
3, // PLUTO
3, // MOON
3, // SUN
2, // NUTATION
3, // LIBRATION
3, // Lunar mantle angular vel
1}; // TT - TDB
for(UInt i=0; i<degree.size(); i++)
if(degree.at(i))
degree.at(i)--;
for(UInt i=0; i<subintervals.size(); i++)
if(subintervals.at(i) == 0)
components.at(i) = 0;
}
}
// ==============================
std::vector<Time> times;
std::vector<std::vector<std::vector<Matrix>>> coefficients;
for(FileName &filenameIn : fileNamesIn)
{
try
{
logStatus<<"read file <"<<filenameIn<<">"<<Log::endl;
InFile file(filenameIn);
for(;;)
{
UInt idx, count;
file>>idx>>count;
if(file.eof())
break;
Time timeStart = timeTT2GPS(mjd2time(readDouble(file)-2400000.5));
Time timeEnd = timeTT2GPS(mjd2time(readDouble(file)-2400000.5));
logInfo<<"["<<timeStart.dateTimeStr()<<", "<<timeEnd.dateTimeStr()<<") days = "<<(timeEnd-timeStart).mjd()<<Log::endl;
if(!times.size())
times.push_back(timeStart);
UInt idInterval = std::distance(times.begin(), std::find(times.begin(), times.end(), timeStart));
if(idInterval+1 < times.size()) // interval already exists?
{
if(times.at(idInterval+1) != timeEnd)
throw(Exception("expected "+times.at(idInterval+1).dateTimeStr()+" but get "+timeEnd.dateTimeStr()));
}
else
{
if(idInterval+1 != times.size())
throw(Exception("expected "+times.back().dateTimeStr()+" but get "+timeStart.dateTimeStr()));
times.push_back(timeEnd);
coefficients.resize(times.size()-1);
coefficients.back().resize(subintervals.size());
}
for(UInt idBody=0; idBody<subintervals.size(); idBody++)
{
coefficients.at(idInterval).at(idBody).resize(subintervals.at(idBody), Matrix(components.at(idBody), degree.at(idBody)+1));
for(UInt idSub=0; idSub<subintervals.at(idBody); idSub++)
for(UInt i=0; i<components.at(idBody); i++)
for(UInt n=0; n<=degree.at(idBody); n++)
coefficients.at(idInterval).at(idBody).at(idSub)(i, n) = readDouble(file); // km -> m
}
}
}
catch(std::exception &e)
{
logWarning<<std::endl<<e.what()<<" continue..."<<Log::endl;
continue;
}
} // for(inputFiles)
// ==============================
// km -> m
// -------
for(UInt idInterval=0; idInterval<coefficients.size(); idInterval++)
for(UInt idBody=0; idBody<std::min(std::size_t(11), subintervals.size()); idBody++)
for(UInt idSub=0; idSub<subintervals.at(idBody); idSub++)
coefficients.at(idInterval).at(idBody).at(idSub) *= 1000;
// ==============================
// write results
// -------------
logStatus<<"write ephemerides to file <"<<fileNameOut<<">"<<Log::endl;
writeFileEphemerides(fileNameOut, earthMoonRatio, times, subintervals, components, degree, coefficients);
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
/***********************************************/
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