gnsstk::NavTimeSystemConverter Class Reference

Detailed Description

Define a class for doing time system conversions using navigation messages provided by a NavLibrary object.

Example use:

   // Some time to convert
gnsstk::CommonTime ct(gnsstk::GPSWeekSecond(2020,2021));
   // Construct the time system converter
gnsstk::CommonTime::tsConv =
   make_shared<gnsstk::NavTimeSystemConverter>();
   // Get a pointer to the NavTimeSystemConverter
NavTimeSystemConverter *ntsc = dynamic_cast<NavTimeSystemConverter*>(
   CommonTime::tsConv.get());
   // Construct a NavLibrary object.
ntsc->navLib = make_shared<gnsstk::NavLibrary>();
   // Construct a NavDataFactory object
gnsstk::NavDataFactoryPtr ndfp(
   std::make_shared<gnsstk::MultiFormatNavDataFactory>());
   // Add the NavDataFactory to the NavLibrary
ntsc->navLib->addFactory(ndfp);
   // Add input data (files) to the NavDataFactory
if (!ndfp->addDataSource(inputFileName))
{
   cerr << "Unable to load \"" << inputFileName << "\"" << endl;
   return false;
}
  // Convert the time to UTC
if (!ct.changeTimeSystem(gnsstk::TimeSystem::UTC))
{
   cerr << "Unable to change time system to UTC" << endl;
   return false;
}
cout << "Time is "
     << gnsstk::printTime("%Y/%02m/%02d %02H:%02M:%02S %P") << endl;

Definition at line 87 of file NavTimeSystemConverter.hpp.

#include <NavTimeSystemConverter.hpp>

Inheritance diagram for gnsstk::NavTimeSystemConverter:

Public Member Functions
bool	getOffset (TimeSystem fromSys, TimeSystem toSys, const CommonTime &t, double &offs) override

Public Attributes
std::shared_ptr< NavLibrary >	navLib
	Pointer to the nav library from which we will get time offset data. More...

Member Function Documentation

getOffset()

bool gnsstk::NavTimeSystemConverter::getOffset ( TimeSystem  fromSys, TimeSystem  toSys, const CommonTime &  t, double &  offs  )

overridevirtual

Get the offset in seconds between fromSys and toSys.

Precondition

navLib must be set.

Parameters

[in]	fromSys	The time system to convert from.
[in]	toSys	The time system to convert to.
[in]	t	The time at which the offset is being requested (i.e. the time being converted).
[out]	offs	The resulting offset, if available.

Returns

true if successful, false if unavailable.

Note

We use Any health because if someone loads the NavLibrary with only TimeOffset data, there won't be any health to match, resulting in a failure.

Implements gnsstk::TimeSystemConverter.

Definition at line 46 of file NavTimeSystemConverter.cpp.

Member Data Documentation

navLib

std::shared_ptr<NavLibrary> gnsstk::NavTimeSystemConverter::navLib

Pointer to the nav library from which we will get time offset data.

Definition at line 102 of file NavTimeSystemConverter.hpp.

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The documentation for this class was generated from the following files:

• NavTimeSystemConverter.hpp
• NavTimeSystemConverter.cpp