On 16.01.2012 17:57, waldo kitty wrote:
Especially you can try JulianToDateTime and UnixToDateTime. Both return a TDateTime which you can convert to a string using FormatDateTime ( http://www.freepascal.org/docs-html/rtl/sysutils/datetimetostring.html ) or DateTimeToStr ( http://www.freepascal.org/docs-html/rtl/sysutils/datetimetostr.html ).i think i might be able to do something with the JulianToDateTime once i get the base year portion converted to a true julian... i spotted some C# code while doing a bit of research earlier (see below)... it appears to convert the year to a julian year and then add the decimal day portion... this should then be a proper julian date which i should be able to handle ;) [---- WARNING: C# code follows ----] double getJulianDay_Year(int year) { double dYear = year - 1; double A = Math.Floor(dYear / 100); double B = 2 - A + Math.Floor(A / 4); //The use of 30.600000000000001 is to correct for floating point rounding problems double dResult = Math.Floor(365.25 * dYear) + 1721422.9 + B; return dResult; } double getJulianDay_SatEpoch(int year, double dSatelliteEpoch) { //Tidy up the year and put it into the correct century year = year % 100; if (year < 57) year += 2000; else year += 1900; double dResult = getJulianDay_Year(year); dResult += dSatelliteEpoch; return dResult; } [---- end of C# code ----] looks like it should be easy to convert to pascal, too ;) just gotta find out what that "floor" routine does ;)
Well... I would say the same as FPC's "floor" routine ( http://www.freepascal.org/docs-html/rtl/math/floor.html ) does ;)
A hint for converting C# code: it might help to google for (in this case) "Math.Floor .net" which will often result in a MSDN link like this one: http://msdn.microsoft.com/en-us/library/e0b5f0xb.aspx
Regards, Sven _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
