bool ossimPredatorKlvTable::getDateUsingEpoc(ossimDate& d)const
{
bool result = false;
ossim_int64 t;
ossim_float64 fraction=0;
if(getUnixEpocTimestampInSeconds(t, fraction))
{
result = true;
d.setTimeNoAdjustmentGivenEpoc(t);
d.setFractionalSecond(fraction);
}
return result;
}
bool ossimPredatorKlvTable::getDateUsingUtc(ossimDate& d, bool shiftToGmtZero)const
{
bool result = false;
ossimString utc = getUtcTimestamp();
if(utc.size() > 0)
{
result = d.setIso8601(utc, shiftToGmtZero);
}
return result;
}
static void convertOssimToFileTime(FILETIME *ft, const ossimDate& dt)
{
SYSTEMTIME st;
st.wDay = dt.getDay();
st.wMonth = (WORD)(dt.getMonth());
st.wYear = (WORD)dt.getYear();
st.wHour = dt.getHour();
st.wMinute = dt.getMin();
st.wSecond = dt.getSec();
// st.wMilliseconds = dt.GetMillisecond();
FILETIME ftLocal;
if ( !::SystemTimeToFileTime(&st, &ftLocal) )
{
// wxLogLastError(_T("SystemTimeToFileTime"));
}
if ( !::LocalFileTimeToFileTime(&ftLocal, ft) )
{
// wxLogLastError(_T("LocalFileTimeToFileTime"));
}
}
void check_time(char const* format, char const* sDate,
int year, int month, int day,
int hour, int min, int sec, double fsec)
{
// std::cout << "Test " << sDate << " against " << format << std::endl;
const ossimDate d = ossimplugins::time::details::strptime(format, sDate);
BOOST_CHECK_EQUAL(d.getYear(), year);
BOOST_CHECK_EQUAL(d.getMonth(), month);
BOOST_CHECK_EQUAL(d.getDay(), day);
BOOST_CHECK_EQUAL(d.getHour(), hour);
BOOST_CHECK_EQUAL(d.getMin(), min);
BOOST_CHECK_EQUAL(d.getSec(), sec);
BOOST_CHECK_EQUAL(d.getFractionalSecond(), fsec);
// Reference
ossimLocalTm iso;
iso.setIso8601(sDate);
BOOST_CHECK_EQUAL(d.getModifiedJulian(), iso.getModifiedJulian());
// Is ossimDate |--> MJD bijective ?
const double dMJD = d.getModifiedJulian();
ossimDate d2; d2.setDateFromModifiedJulian(dMJD);
BOOST_CHECK_EQUAL(d2.getYear(), year);
BOOST_CHECK_EQUAL(d2.getMonth(), month);
BOOST_CHECK_EQUAL(d2.getDay(), day);
BOOST_CHECK_EQUAL(d2.getHour(), hour);
BOOST_CHECK_EQUAL(d2.getMin(), min);
BOOST_CHECK_CLOSE_FRACTION(d2.getSec()+d2.getFractionalSecond(), sec+fsec, 1e-6);
// Alternative implementation
BOOST_CHECK_CLOSE_FRACTION(d.getModifiedJulian(), getModifiedJulianDate(sDate), 1e-12);
// Check string conversion
// Yes, this is likelly to fail du to double imprecisions
// - official ossimDate string conversion
ossimplugins::time::ModifiedJulianDate mjd = ossimplugins::time::toModifiedJulianDate(sDate);
// std::cout << "MJD("<<sDate<<"): " << mjd.as_day_frac() << std::endl;
BOOST_CHECK_CLOSE_FRACTION(d.getModifiedJulian(), mjd.as_day_frac(), 1e-12);
std::ostringstream oss;
oss << d.getYear() << '-' << std::setw(2) << std::setfill('0') << d.getMonth() << '-' << d.getDay() << 'T';
d.printTime(oss);
if (d.getFractionalSecond() > 0) {
oss << '.' << std::setw(6) << (d.getFractionalSecond() * 1000*1000);
}
BOOST_CHECK_EQUAL(oss.str(), sDate);
// - our string conversion
// std::cout << std::setprecision(20) ;
// std::cout << mjd.as_day_frac() << " -> " << to_simple_string(mjd) << " / " << d.getModifiedJulian() << "\n";
// std::cout << oss.str() << "\n";
// We know this test will fail because of float rounding => just display
std::cout.precision(16);
std::cout << mjd << " as a simple string (" << ossimplugins::time::to_simple_string(mjd)
<< ") is expected to differ from " << sDate << "\n";
// BOOST_CHECK_EQUAL(to_simple_string(mjd), sDate);
}
ossimplugins::time::ModifiedJulianDate ossimplugins::time::toModifiedJulianDate(string_view const& utcTimeString)
{
const ossimDate date = details::strptime("%Y-%m-%dT%H:%M:%S%.", utcTimeString);
return ModifiedJulianDate(date.getModifiedJulian());
}
