User Manual 4.0 Time - Historique des versions

Admin le 27 février 2018 à 09:10

2018-02-27T09:10:17Z

← Version précédente		Version du 27 février 2018 à 09:10
Ligne 39 :		Ligne 39 :
	* another way is to give a predefined date and an elapsed duration from this date : <code>AbsoluteDate(AbsoluteDate, double)</code>		* another way is to give a predefined date and an elapsed duration from this date : <code>AbsoluteDate(AbsoluteDate, double)</code>

	~~<font color="orange">~~For advanced users only : a constructor <code>AbsoluteDate(long, double)</code> is available. It uses as parameters an "epoch" and an "offset", which are in fact the attributes of AbsoluteDate. These attributes have no meaning outside of AbsoluteDate, and are not meant to be exposed or manipulated directly by regular users. This constructor was added for the purpose of creating AbsoluteDate instances very quickly from a static storage (apart from serialization) and without loss of precision. Getters for "epoch" and "offset" are also available for this purpose.'''Use at your own risk!'''~~</font>~~		{{warning\|For advanced users only : a constructor <code>AbsoluteDate(long, double)</code> is available. It uses as parameters an "epoch" and an "offset", which are in fact the attributes of AbsoluteDate. These attributes have no meaning outside of AbsoluteDate, and are not meant to be exposed or manipulated directly by regular users. This constructor was added for the purpose of creating AbsoluteDate instances very quickly from a static storage (apart from serialization) and without loss of precision. Getters for "epoch" and "offset" are also available for this purpose.'''Use at your own risk!'''}}

Admin : /* Classes */

2018-02-21T08:00:55Z

Classes

@@ Ligne 197 : / Ligne 197 : @@
 === Classes ===
-|=(% colspan="3" %)Class|=(% colspan="6" %)Summary|=(% colspan="1" %)Javadoc
+{| class="wikitable"
-|(% colspan="3" %)'''AbsoluteDate'''|(% colspan="6" %)This class represents a specific instant in time.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/AbsoluteDate.html ...]
+|-
-|(% colspan="3" %)'''AbsoluteDateInterval'''|(% colspan="6" %)This class implements an interval based on the AbsoluteDate class.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/AbsoluteDateInterval.html ...]
+! scope="col"| Class
-|(% colspan="3" %)'''AbsoluteDateIntervalsList'''|(% colspan="6" %)This class represents a list of AbsoluteDateInterval objects.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/AbsoluteDateIntervalsList.html ...]
+! scope="col"| Summary
-|(% colspan="3" %)'''ChronologicalComparator'''|(% colspan="6" %)Comparator for TimeStamped instance.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/ChronologicalComparator.html ...]
+! scope="col"| Javadoc
-|(% colspan="3" %)'''ComparableInterval'''|(% colspan="6" %)Class describing an interval of Comparable data.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/math/interval/ComparableInterval.html ...]
+|-
-|(% colspan="3" %)'''DateComponents'''|(% colspan="6" %)Class representing a date broken up as year, month and day components.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/DateComponents.html ...]
+|'''AbsoluteDate'''
-|(% colspan="3" %)'''DateTimeComponents'''|(% colspan="6" %)Holder for date and time components.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/DateTimeComponents.html ...]
+|This class represents a specific instant in time.
-|(% colspan="3" %)'''GalileoScale'''|(% colspan="6" %)Galileo system time scale.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/GalileoScale.html ...]
+|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/time/AbsoluteDate.html ...]
-|(% colspan="3" %)'''GenericInterval'''|(% colspan="6" %)Generic class to describe an interval.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/utils/GenericInterval.html ...]
+|-
-|(% colspan="3" %)'''GMSTScale'''|(% colspan="6" %)Greenwich Mean Sidereal Time.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/GMSTScale.html ...]
+|'''AbsoluteDateInterval'''
-|(% colspan="3" %)'''GPSScale'''|(% colspan="6" %)GPS time scale.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/GPSScale.html ...]
+|This class implements an interval based on the AbsoluteDate class.
-|(% colspan="3" %)'''TAIScale'''|(% colspan="6" %)International Atomic Time.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/TAIScale.html ...]
+|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/time/AbsoluteDateInterval.html ...]
-|(% colspan="3" %)'''TCBScale'''|(% colspan="6" %)Barycentric Coordinate Time.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/TCBScale.html ...]
+|-
-|(% colspan="3" %)'''TCGScale'''|(% colspan="6" %)Geocentric Coordinate Time.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/TCGScale.html ...]
+|'''AbsoluteDateIntervalsList'''
-|(% colspan="3" %)'''TDBScale'''|(% colspan="6" %)Barycentric Dynamic Time.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/TDBScale.html ...]
+|This class represents a list of AbsoluteDateInterval objects.
-|(% colspan="3" %)'''TimeComponents'''|(% colspan="6" %)Class representing a time within the day broken up as hour, minute and second components.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/TimeComponents.html ...]
+|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/time/AbsoluteDateIntervalsList.html ...]
-|(% colspan="3" %)'''TimeScalesFactory'''|(% colspan="6" %)Factory for predefined time scales.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/TimeScalesFactory.html ...]
+|-
-|(% colspan="3" %)'''TTScale'''|(% colspan="6" %)Terrestrial Time as defined by IAU(1991) recommendation IV.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/TTScale.html ...]
+|'''ChronologicalComparator'''
-|(% colspan="3" %)'''UT1Scale'''|(% colspan="6" %)Universal Time 1.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/UT1Scale.html ...]
+|Comparator for TimeStamped instance.
-|(% colspan="3" %)'''UTCScale'''|(% colspan="6" %)Coordinated Universal Time.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/UTCScale.html ...]
+|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/time/ChronologicalComparator.html ...]
-|(% colspan="3" %)'''LocalTimeAngle'''|(% colspan="6" %)Local time angle computation methods.|(% colspan="1" %)[{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/time/LocalTimeAngle.html ...]
+|-
 == Tutorials ==

Admin : /* Interfaces */

2018-02-21T07:59:29Z

Interfaces

← Version précédente		Version du 21 février 2018 à 07:59
Ligne 181 :		Ligne 181 :
	== Contents ==		== Contents ==
	=== Interfaces ===		=== Interfaces ===
	\|=~~(% colspan~~="3" %)Interface~~\|=(% colspan~~="6" %)Summary~~\|=(% colspan~~="1" %)Javadoc		{\| class="wikitable"
	\|~~(% colspan="3" %)~~'''TimeScale'''\|~~(% colspan="6" %)~~Interface for time scales.\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/time/TimeScale.html ...]		\|-
	\|~~(% colspan="3" %)~~'''TimeStamped'''\|~~(% colspan="6" %)~~This interface represents objects that have a AbsoluteDate date attached to them.\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/time/TimeStamped.html ...]		! scope="col"\| Interface
			! scope="col"\| Summary
			! scope="col"\| Javadoc
			\|-
			\|'''TimeScale'''
			\|Interface for time scales.
			\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/time/TimeScale.html ...]
			\|-
			\|'''TimeStamped'''
			\|This interface represents objects that have a AbsoluteDate date attached to them.
			\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/time/TimeStamped.html ...]
			\|}

	=== Classes ===		=== Classes ===

Admin : /* Javadoc */

2018-02-21T07:58:39Z

Javadoc

← Version précédente		Version du 21 février 2018 à 07:58
Ligne 7 :		Ligne 7 :
	The object related with dates and time scales are available in the package <code>fr.cnes.sirius.patrius.time</code>.		The object related with dates and time scales are available in the package <code>fr.cnes.sirius.patrius.time</code>.

	\|=Library\|=Javadoc		{\| class="wikitable"
	\|Patrius\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/time/package-summary.html Package fr.cnes.sirius.patrius.time]		\|-
	\|Patrius\|[{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/utils/package-summary.html Package fr.cnes.sirius.patrius.utils]		! scope="col"\| Library
			! scope="col"\| Javadoc
			\|-
			\|Patrius
			\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/time/package-summary.html Package fr.cnes.sirius.patrius.time]
			\|-
			\|Patrius
			\|[{{JavaDoc4.0}}/fr/cnes/sirius/patrius/utils/package-summary.html Package fr.cnes.sirius.patrius.utils]
			\|}

	=== Links ===		=== Links ===

Admin : /* Package Overview */

2018-02-20T16:43:17Z

Package Overview

← Version précédente		Version du 20 février 2018 à 16:43
Ligne 19 :		Ligne 19 :
	=== Package Overview ===		=== Package Overview ===
	[[File:timeOrekit.JPG]]		[[File:timeOrekit.JPG]]

	This package overview is from the OREKIT website, under apache license.		This package overview is from the OREKIT website, under apache license.

Admin le 20 février 2018 à 16:42

2018-02-20T16:42:57Z

← Version précédente		Version du 20 février 2018 à 16:42
Ligne 1 :		Ligne 1 :
			__NOTOC__

	== Introduction ==		== Introduction ==
	=== Scope ===		=== Scope ===

Admin le 16 février 2018 à 14:52

2018-02-16T14:52:25Z

← Version précédente		Version du 16 février 2018 à 14:52
Ligne 205 :		Ligne 205 :
	=== Tutorial 1 ===		=== Tutorial 1 ===
	[[DatesTutorials\|Tutoriel sur les dates]]		[[DatesTutorials\|Tutoriel sur les dates]]

			[[Category:User_Manual_4.0_Flight_Dynamics]]

Admin le 16 février 2018 à 14:46

2018-02-16T14:46:07Z

← Version précédente		Version du 16 février 2018 à 14:46
Ligne 31 :		Ligne 31 :
	* another way is to give a predefined date and an elapsed duration from this date : <code>AbsoluteDate(AbsoluteDate, double)</code>		* another way is to give a predefined date and an elapsed duration from this date : <code>AbsoluteDate(AbsoluteDate, double)</code>

	~~{{warning}}~~		<font color="orange">For advanced users only : a constructor <code>AbsoluteDate(long, double)</code> is available. It uses as parameters an "epoch" and an "offset", which are in fact the attributes of AbsoluteDate. These attributes have no meaning outside of AbsoluteDate, and are not meant to be exposed or manipulated directly by regular users. This constructor was added for the purpose of creating AbsoluteDate instances very quickly from a static storage (apart from serialization) and without loss of precision. Getters for "epoch" and "offset" are also available for this purpose.'''Use at your own risk!'''</font>
	For advanced users only : a constructor <code>AbsoluteDate(long, double)</code> is available. It uses as parameters an "epoch" and an "offset", which are in fact the attributes of AbsoluteDate. These attributes have no meaning outside of AbsoluteDate, and are not meant to be exposed or manipulated directly by regular users. This constructor was added for the purpose of creating AbsoluteDate instances very quickly from a static storage (apart from serialization) and without loss of precision. Getters for "epoch" and "offset" are also available for this purpose.'''Use at your own risk!'''
	~~{{/warning}}~~

	As for the time scale, Patrius contains 10 different time scales among which the TAI scale (International Atomic Time), the TT scale (Terrestrial Time), the UT1 scale (Universal Time), the UTC scale (Coordinated Universal Time)... The creation of a time scale is done through the <code>TimeScalesFactory</code> as follows : <code>TimeScale scale = TimeScalesFactory.getTT();</code>		As for the time scale, Patrius contains 10 different time scales among which the TAI scale (International Atomic Time), the TT scale (Terrestrial Time), the UT1 scale (Universal Time), the UTC scale (Coordinated Universal Time)... The creation of a time scale is done through the <code>TimeScalesFactory</code> as follows : <code>TimeScale scale = TimeScalesFactory.getTT();</code>
Ligne 77 :		Ligne 76 :

	* compute the duration between intervals in seconds (that is : the duration between the end of the earlier interval and the beginning of the later one):		* compute the duration between intervals in seconds (that is : the duration between the end of the earlier interval and the beginning of the later one):
	<code> double duration = interval.durationFrom(AbsoluteDateInterval nextInterval) </code>		<code>double duration = interval.durationFrom(AbsoluteDateInterval nextInterval) </code>

	* merge the interval with another interval if possible (the intervals must overlap or be connected to be merged):		* merge the interval with another interval if possible (the intervals must overlap or be connected to be merged):
	<code> AbsoluteDateInterval mergedInterval = interval.mergeTo(AbsoluteDateInterval) </code>		<code>AbsoluteDateInterval mergedInterval = interval.mergeTo(AbsoluteDateInterval) </code>

	* get the intersection between two intervals when overlapping:		* get the intersection between two intervals when overlapping:
Ligne 107 :		Ligne 106 :

	* tell which time intervals in the list contain a predetermined date:		* tell which time intervals in the list contain a predetermined date:
	<code> AbsoluteDateIntervalsList intervals = list.getIntervalsContainingDate(date) </code>		<code>AbsoluteDateIntervalsList intervals = list.getIntervalsContainingDate(date)</code>

	* compute the shortest interval containing all the intervals belonging to the list:		* compute the shortest interval containing all the intervals belonging to the list:
	<code> AbsoluteDateInterval inclusiveInterval = list.getInclusiveInterval(); </code>		<code>AbsoluteDateInterval inclusiveInterval = list.getInclusiveInterval(); </code>

	* compute the list of complementary intervals of the given intervals list:		* compute the list of complementary intervals of the given intervals list:
	<code> AbsoluteDateIntervalsList complementaryList = list.getComplementaryIntervals(); </code>		<code>AbsoluteDateIntervalsList complementaryList = list.getComplementaryIntervals();</code>

	Please see the Javadoc for more information.		Please see the Javadoc for more information.
Ligne 119 :		Ligne 118 :
	=== Local time and solar time ===		=== Local time and solar time ===
	Local time is represented by the angle between the projections of the Earth-Sun vector and the Earth-Spacecraft vector in the equatorial plane. Local time is expressed in hours and its value is 12h when this angle is 0 rad. Beware, in PATRIUS, local time is always expressed as an angle in the range [-PI; PI[ and always represents the angle between the projections of the Earth-Sun vector and the Earth-Spacecraft vector in the equatorial plane. If one wants to retrieve local time (in hours) from the local time angle provided by PATRIUS, the following formula should be used:		Local time is represented by the angle between the projections of the Earth-Sun vector and the Earth-Spacecraft vector in the equatorial plane. Local time is expressed in hours and its value is 12h when this angle is 0 rad. Beware, in PATRIUS, local time is always expressed as an angle in the range [-PI; PI[ and always represents the angle between the projections of the Earth-Sun vector and the Earth-Spacecraft vector in the equatorial plane. If one wants to retrieve local time (in hours) from the local time angle provided by PATRIUS, the following formula should be used:
	~~(% style="text-align:~~ center~~;" %)~~
	Local time = 12h + local time angle* 12 / Pi.		<center>Local time = 12h + local time angle* 12 / Pi.</center>

	Local time increases for prograde orbits and decreases for retrograde orbits.		Local time increases for prograde orbits and decreases for retrograde orbits.

	Similarly, solar time is represented by the angle between the Earth-Sun projection in the orbital plane and the Earth-Spacecraft vector. Solar time is expressed in hours and its value is 12h when this angle is 0 rad. Beware, in PATRIUS, solar time is always expressed as an angle in the range [-PI; PI[ and always represents the angle between the Earth-Sun projection in the orbital plane and the Earth-Spacecraft vector. If one wants to retrieve solar time (in hours) from the solar time angle provided by PATRIUS, the following formula should be used:		Similarly, solar time is represented by the angle between the Earth-Sun projection in the orbital plane and the Earth-Spacecraft vector. Solar time is expressed in hours and its value is 12h when this angle is 0 rad. Beware, in PATRIUS, solar time is always expressed as an angle in the range [-PI; PI[ and always represents the angle between the Earth-Sun projection in the orbital plane and the Earth-Spacecraft vector. If one wants to retrieve solar time (in hours) from the solar time angle provided by PATRIUS, the following formula should be used:
	~~(% style="text-align:~~ center~~;" %)~~
	Solar time = 12h + solar time angle* 12 / Pi.		<center>Solar time = 12h + solar time angle* 12 / Pi.</center>

	Solar time always increases with time. It is mesured around the orbit momentum.		Solar time always increases with time. It is mesured around the orbit momentum.
Ligne 134 :		Ligne 133 :
	* Mean local time angle using <code>computeMeanLocalTimeAngle()</code>. Local time angle is always computed in TIRF frame. Mean local time is the sum of true local time and equation of time (EOT):		* Mean local time angle using <code>computeMeanLocalTimeAngle()</code>. Local time angle is always computed in TIRF frame. Mean local time is the sum of true local time and equation of time (EOT):

	~~(% style="text-align:~~ center~~;" %)~~
	<math>Mean local time = True local time + EOT</math>		<center><math>Mean local time = True local time + EOT</math></center>

	* Equation of time using <code>computeEquationOfTime()</code>:		* Equation of time using <code>computeEquationOfTime()</code>:
Ligne 141 :		Ligne 140 :
	Equation of time is true local time of GMST ([0; 0; 1] vector in TIRF frame) minus seconds in the date:		Equation of time is true local time of GMST ([0; 0; 1] vector in TIRF frame) minus seconds in the date:

	~~(% style="text-align:~~ center~~;" %)~~
	<math>EOT =-(Local time GMST - sec)</math>		<center><math>EOT =-(Local time GMST - sec)</math></center>

	Equation of time is periodic over one year in the range [-16min; +14min]:		Equation of time is periodic over one year in the range [-16min; +14min]:

	~~(% style="text-align: center;" %)~~		[[File:EquationOfTime.png\|center]]
	~~[attach:Images@EquationOfTime.png [~~[[File:EquationOfTime.png]]]]

	== Getting Started ==		== Getting Started ==
Ligne 206 :		Ligne 204 :
	== Tutorials ==		== Tutorials ==
	=== Tutorial 1 ===		=== Tutorial 1 ===
	[~~Tutoriels_Flight_Dynamics.Dates~~ Tutoriel sur les dates]		[[DatesTutorials\|Tutoriel sur les dates]]

Admin : Admin a déplacé la page Time vers User Manual 4.0 Time sans laisser de redirection

2018-02-16T14:33:02Z

Admin a déplacé la page Time vers User Manual 4.0 Time sans laisser de redirection

← Version précédente	Version du 16 février 2018 à 14:33
(Aucune différence)

Admin : 1 révision importée

2018-02-16T14:32:44Z

1 révision importée

← Version précédente		Version du 16 février 2018 à 14:32
(Aucune différence)

User Manual 4.0 Time - Historique des versions

Admin le 27 février 2018 à 09:10

Admin : /* Classes */

Admin : /* Interfaces */

Admin : /* Javadoc */

Admin : /* Package Overview */