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Mise à jour de CovarianceDisplay authored by Julien LEBLOND's avatar Julien LEBLOND
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CovarianceDisplay.md
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# Covariance Display
**Implements** : [CzmlPrimaryObject](CZMLPrimaryObjects) **Extends** : [AbstractPrimaryObject](AbstractPrimaryObject)
**Implements** : [CzmlPrimaryObject](CZMLPrimaryObjects)
**Extends** : [AbstractPrimaryObject](AbstractPrimaryObject)
**Example** :
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# Properties
**id** - String : Identification of the covariance display object, *default* : "COV/{id of the object}".
**id** - String : Identification of the covariance display object, _default_ : "COV/{id of the object}".
**name** - String : Name of the covairance display, _default_ : "Covariance of {name of the object}".
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## Other parameters
**referenceFrame** - String : The reference frame where the covariance is computed, *default* : "INERTIAL".
**referenceFrame** - String : The reference frame where the covariance is computed, _default_ : "INERTIAL".
**positionReference** - [Reference](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/attitudes/Attitude.html) : The reference for the center of the position of the ellipsoid.
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**ellipsoidList** - [List of CzmlEllipsoid](CzmlEllipsoid) : When the covariance changes in time, several ellipsoids are computed, they are stored here.
**julianDates ** - [List of JulianDate](https://cesium.com/learn/cesiumjs/ref-doc/JulianDate.html) : A list of all the julian dates when the propagation of the covariance is computed.
**julianDates** - [List of JulianDate](https://cesium.com/learn/cesiumjs/ref-doc/JulianDate.html) : A list of all the julian dates when the propagation of the covariance is computed.
**dimensionsOfEllipsoids** - [List of Cartesian](https://github.com/AnalyticalGraphicsInc/czml-writer/wiki/Cartesian3Value) : A list of cartesian that represents the radius of the ellipsoids in the ITR frame.
**attitudes* - [List of Attitude](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/attitudes/Attitude.html) : A list of all the attitudes of all the ellipsoids, when the ellipsoid changes in time.
**attitudes** - [List of Attitude](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/attitudes/Attitude.html) : A list of all the attitudes of all the ellipsoids, when the ellipsoid changes in time.
**satelliteCartesianList** - [List of Cartesian](https://github.com/AnalyticalGraphicsInc/czml-writer/wiki/Cartesian3Value) : A list that contains all the position in cartesian of the satellite in the ITR frame.
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The CovarianceDisplay object can be build with :
* A [satellite](Satellite), an[initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html) :
* A [satellite](Satellite), an [initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(satellite, initCovariance, lof);
```
* A [satellite](Satellite), an[initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html), a [color](https://docs.oracle.com/javase/8/docs/api/java/awt/Color.html) :
* A [satellite](Satellite), an [initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html), a [color](https://docs.oracle.com/javase/8/docs/api/java/awt/Color.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(satellite, initCovariance, lof, color);
```
* An [oem](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/Oem.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html) :
* An [oem](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/Oem.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(oem, lof);
```
* An [oem](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/Oem.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html), a [color](https://docs.oracle.com/javase/8/docs/api/java/awt/Color.html) :
* An [oem](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/Oem.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html), a [color](https://docs.oracle.com/javase/8/docs/api/java/awt/Color.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(oem, lof, color);
```
* An [ephemeris](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/OemData.html#getEphemeridesDataLines()), an
[initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html) :
* An [ephemeris](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/OemData.html#getEphemeridesDataLines()), an [initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(ephemeris, initCovariance, lof);
```
* An [ephemeris](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/OemData.html#getEphemeridesDataLines()), an
[initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html), a [color](https://docs.oracle.com/javase/8/docs/api/java/awt/Color.html) :
* An [ephemeris](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/files/ccsds/ndm/odm/oem/OemData.html#getEphemeridesDataLines()), an [initCovariance](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/StateCovariance.html), a [lof](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/frames/LOF.html), a [color](https://docs.oracle.com/javase/8/docs/api/java/awt/Color.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(ephemeris, initCovariance, lof, color);
```
* A [position](Position), an [ellipsoid](CzmlEllipsoid), an [attitude](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/attitudes/Attitude.html) :
* A [position](Position), an [ellipsoid](CzmlEllipsoid), an [attitude](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/attitudes/Attitude.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(position, ellipsoid, attitude);
```
* An id, a name, a [position](Position), an [ellipsoid](CzmlEllipsoid), an [attitude](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/attitudes/Attitude.html) :
* An id, a name, a [position](Position), an [ellipsoid](CzmlEllipsoid), an [attitude](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/attitudes/Attitude.html) :
```java
CovarianceDisplay covariance = new CovarianceDisplay(id, name, position, ellipsoid, attitude);
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