GlobalPositioningSystemDate Structure

A date and time format consisting of a week number and a time of week and utilizing the GlobalPositioningSystemTime time standard.

Namespace: AGI.Foundation.Time
Assembly: AGI.Foundation.Core (in AGI.Foundation.Core.dll) Version: 24.3.420.0 (24.3.420.0)

Syntax

C++

Copy

public struct GlobalPositioningSystemDate : IComparable<GlobalPositioningSystemDate>, 
	IComparable, IEquatable<GlobalPositioningSystemDate>, IEquatableEpsilon<GlobalPositioningSystemDate>

Public Structure GlobalPositioningSystemDate
	Implements IComparable(Of GlobalPositioningSystemDate), IComparable, 
	IEquatable(Of GlobalPositioningSystemDate), IEquatableEpsilon(Of GlobalPositioningSystemDate)

public value class GlobalPositioningSystemDate : IComparable<GlobalPositioningSystemDate>, 
	IComparable, IEquatable<GlobalPositioningSystemDate>, IEquatableEpsilon<GlobalPositioningSystemDate>

[<SealedAttribute>]
type GlobalPositioningSystemDate =  
    struct
        interface IComparable<GlobalPositioningSystemDate>
        interface IComparable
        interface IEquatable<GlobalPositioningSystemDate>
        interface IEquatableEpsilon<GlobalPositioningSystemDate>
    end

The GlobalPositioningSystemDate type exposes the following members.

Constructors

	Name	Description
	GlobalPositioningSystemDate(DateTime)	Initializes a new instance from a DateTime.
	GlobalPositioningSystemDate(GregorianDate)	Initializes a new instance from a GregorianDate.
	GlobalPositioningSystemDate(JulianDate)	Initializes a new instance from a JulianDate.
	GlobalPositioningSystemDate(Int32, Double)	Initializes a new instance from a week number and a number of seconds into the week.
	GlobalPositioningSystemDate(Int32, DayOfWeek, Double)	Initializes a new instance from a week number, a day of the week, and a number of seconds into the day.
	GlobalPositioningSystemDate(Int32, Int32, Int32, Int32, Int32)	Initializes a new instance from the time parameters found in a PerformanceAssessmentRecord.

Top

Properties

	Name	Description
	DayOfWeek	Gets the day of the week.
	KPoints	Gets the K-Points (15-minute segments) since the most recent GPS epoch.
	RolloverCount	Gets the number of times that the GPS week counter has rolled over since JulianDateOfEpoch.
	RolloverDate	Gets the most recent rollover of the GPS week counter. The week number returned by WeekSinceRollover is relative to this date.
	SecondsOfDay	Gets the elapsed whole and fractional seconds since the start of the day.
	SecondsOfWeek	Gets the elapsed whole and fractional seconds since the start of the week.
	TotalDays	Gets the total number of whole and fractional days that have elapsed since JulianDateOfEpoch.
	TotalDaysSinceRollover	Gets the total number of whole and fractional days that have elapsed since RolloverDate.
	Week	Gets the week number, which is the number of weeks since January 6, 1980.
	WeekSinceRollover	Gets the week number since the most recent GPS week rollover. In the GPS system, the week is represented as a 10 bit number so it can only be a value from 0 to 1023 before rolling over back to 0.
	ZCounts	Gets the Z-Counts (1.5 second segments) since the most recent GPS Epoch.

Top

Methods

	Name	Description
	Add	Adds a Duration to this date, producing a new date.
	AddDays	Adds the specified number of days to this date and returns the new date.
	AddSeconds	Adds the specified number of seconds to this date and returns the new date.
	CompareTo(GlobalPositioningSystemDate)	Compares this instance with another instance of the same type.
	CompareTo(Object)	Compares this instance with another instance of the same type.
	Equals(GlobalPositioningSystemDate)	Indicates whether another instance of this type is exactly equal to this instance.
	Equals(Object)	Indicates whether another object is exactly equal to this instance. (Overrides ValueTypeEquals(Object).)
	EqualsEpsilon	Returns true if this date is within epsilon seconds of the specified date. That is, in order for the dates to be considered equal (and for this function to return true), the absolute value of the difference between them, in seconds, must be less than or equal to epsilon.
	GetHashCode	Returns a hash code for this instance, which is suitable for use in hashing algorithms and data structures like a hash table. (Overrides ValueTypeGetHashCode.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MinutesDifference	Computes the number of minutes that have elapsed from this date to the other date.
	SecondsDifference	Computes the number of seconds that have elapsed from this date to the other date.
	Subtract(Duration)	Subtracts a Duration from this date, producing a new date.
	Subtract(GlobalPositioningSystemDate)	Subtracts another date from this date.
	ToDateTime	Converts this GPS Time to a .NET standard DateTime with a default time standard of Global Positioning System Time.
	ToJulianDate	Returns a JulianDate that is equivalent to this instance.
	ToString	Returns the value of this GPS Time in RolloverCount:WeekSinceRollover:SecondsOfWeek, where RolloverCount is the number of times that the GPS week counter has rolled over since JulianDateOfEpoch. (Overrides ValueTypeToString.)

Top

Operators

	Name	Description
	Addition	Adds a Duration to a GlobalPositioningSystemDate, producing a new date.
	Equality	Returns if the two instances are exactly equal.
	GreaterThan	Returns true if left occurs after right.
	GreaterThanOrEqual	Returns true if left occurs after or at the same time as right.
	Inequality	Returns if the two instances are not exactly equal.
	LessThan	Returns true if left occurs before right.
	LessThanOrEqual	Returns true if left occurs before or at the same time as right.
	Subtraction(GlobalPositioningSystemDate, Duration)	Subtracts a Duration from a date, yielding a new GlobalPositioningSystemDate.
	Subtraction(GlobalPositioningSystemDate, GlobalPositioningSystemDate)	Subtracts a date from another date, yielding a Duration.

Top

Fields

	Name	Description
	JulianDateOfEpoch	The GPS epoch of 6 January 1980 00:00:00 UTC expressed as a JulianDate in the GlobalPositioningSystemTime.
	WeekWrapValue	The number of weeks after which the week count wraps around to zero.

Top

Remarks

Internally, this class stores the date as a week number, a day of the week, and a number of seconds into the day. This enables it to represent a date with the same precision as the JulianDate type.

Reference

AGI.Foundation.Time Namespace