GroundTrack - Zudokakikuto/OreCZML GitHub Wiki
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GroundTrack
The GroundTrack object aims at displaying the projection of the orbit of an object on the surface of a body.
Implements : CzmlPrimaryObject
Extends : AbstractPrimaryObject
Example :
{
"id":"GROUND_TRACK/Keplerian parameters: {a: 1.0878E7; e: 0.0; i: 20.0; pa: 0.0; raan: 0.0; v: 0.0;}",
"name":"Ground track of : Keplerian parameters: {a: 1.0878E7; e: 0.0; i: 20.0; pa: 0.0; raan: 0.0; v: 0.0;}",
"availability":"2024-03-15T00:00:00Z/2024-03-15T10:00:00Z",
"position":{
"referenceFrame":"INERTIAL",
"interpolationAlgorithm":"LAGRANGE",
"interpolationDegree":5,
"epoch":"2024-03-15T00:00:32.18397396802902Z",
"cartesian":[
0,6378137,0,0,
59.99999642372131,6374581.709319647,200076.26656141842,72619.33859931014,
120.00003308057785,6363919.789645215,399929.6646521222,145157.70304153176,
180.00002950429916,6346163.093492068,599337.5771237323,217534.2033261687,
240.00002592802048,6321331.360370292,798077.8803284918,289668.12895722286,
300.0000223517418,6289452.1955156755,995929.1873147505,361479.03741297004]
}
"path":{
"show":{
"interval":"2024-03-15T00:00:00Z/2024-03-15T10:00:00Z",
"boolean":true
},
"material":{
"solidColor":{
"color":{
"rgba":[
255,10,20,255
]
}
}
}
}
}
Properties
id - String : Identification of the ground track- default : "GROUND_TRACK/{Id of the object}"
name - String : Name of the ground track, default : "Ground track of : {name of the object}".
availability - TimeInterval : Time interval when the ground track is displayed.
Intrinsinc arguments
These arguments can be used to build a ground track object :
satellite - Satellite : The satellite for the ground track.
body - BodyShape : The body which the satellite orbits.
color - Color : The color of the ground track. Default : white.
constellation - Constellation : A constellation that will take all the satellite at once to display the ground tracks.
Other parameters :
initialCartesiansSatellite - List of Cartesian : A list of the initial cartesians position of the satellite in the ITR frame.
clampedPositionOnBody - TimePosition : The position in time of the point projected on the surface of the body.
allGroundTracks - List of GroundTrack : A list that contains all ground track computed when several are needed with constellation.
Build
The ground track object can be build with :
GroundTrack groundTrack = new GroundTrack(satellite, body);
GroundTrack groundTrack = new GroundTrack(satellite, body, color);
- A constellation, a body :
GroundTrack groundTrack = new GroundTrack(constellation, body);
- A constellation, a body, a Color :
GroundTrack groundTrack = new GroundTrack(constellation, body, color);
Functions
displayLinkSatellite()
- void : This function allows the user to display the link between the satellite and the ground track.