RenderableOrbitalKepler

Inherits Renderable

Members

Name	Documentation	Type	Description	Optional
Color	The RGB main color for the trails and points.	Color3	Value of type ‘Color3’	No
Format	A NORAD-style Two-Line element. Orbit Mean-Elements Message in the KVN notation. JPL’s Small Bodies Database. The file format that is contained in the file.	String	In list { TLE, OMM, SBDB }	No
Path	The file path to the data file to read.	File	Value of type ‘File’	No
SegmentQuality	A segment quality value for the orbital trail. A value from 1 (lowest) to 10 (highest) that controls the number of line segments in the rendering of the orbital trail. This does not control the direct number of segments because these automatically increase according to the eccentricity of the orbit.	Integer	Value of type ‘Integer’	No
ContiguousMode	If enabled, the contiguous set of objects starting from StartRenderIdx of size RenderSize will be rendered. If disabled, the number of objects defined by UpperLimit will rendered from an evenly dispersed sample of the full length of the data file.	Boolean	Value of type ‘Boolean’	Yes
EnableMaxSize	If true, the Max Size property will be used as an upper limit for the size of the point. This reduces the size of the points when approaching them, so that they stick to a maximum visual size depending on the Max Size value.	Boolean	Value of type ‘Boolean’	Yes
EnableOutline	Determines if the points should be rendered with an outline or not.	Boolean	Value of type ‘Boolean’	Yes
MaxSize	Controls the maximum allowed size for the points, when the max size control feature is enabled. This limits the visual size of the points based on the distance to the camera. The larger the value, the larger the points are allowed to be. In the background, the computations are made to limit the size of the angle between the CameraToPointMid and CameraToPointEdge vectors.	Double	Value of type ‘Double’	Yes
OutlineColor	The color of the outline.	Vector3<double>	Value of type ‘Vector3’	Yes
OutlineWidth	Determines the thickness of the outline. A value of 0 will not show any outline, while a value of 1 will cover the whole point.	Double	Value of type ‘Double’	Yes
PointSizeExponent	An exponential scale value to set the absolute size of the point.	Double	Value of type ‘Double’	Yes
Rendering	Determines how the trail should be rendered. If ‘Trail’ is selected, only the line part is visible, if ‘Point’ is selected, only the current satellite/debris point is visible.	String	In list { Trail, Point, PointsTrails }	Yes
RenderSize	Number of objects to render sequentially from StartRenderIdx.	Integer	Value of type ‘Integer’	Yes
StartRenderIdx	Index of the first object in the block to render (all prior objects will be ignored). The block of objects to render will be determined by StartRenderIdx and RenderSize.	Integer	Value of type ‘Integer’	Yes
TrailFade	Determines how fast the trail fades out. A smaller number shows less of the trail and a larger number shows more.	Double	Value of type ‘Double’	Yes
TrailWidth	The line width used for the trail, if the selected rendering method includes lines. If the rendering mode is set to Points, this value is ignored.	Double	Value of type ‘Double’	Yes

Inherited members from Renderable

Name	Documentation	Type	Description	Optional
DimInAtmosphere	Decides if the object should be dimmed (i.e. faded out) when the camera is in the sunny part of an atmosphere.	Boolean	Value of type ‘Boolean’	Yes
Enabled	Determines whether this object will be visible or not.	Boolean	Value of type ‘Boolean’	Yes
Opacity	This value determines the opacity of this renderable. A value of 0 means completely transparent	Double	In range: ( 0,1 )	Yes
RenderBinMode	A value that specifies if the renderable should be rendered in the Background, Opaque, Pre-/PostDeferredTransparency, Overlay, or Sticker rendering step.	String	In list { Background, Opaque, PreDeferredTransparent, PostDeferredTransparent, Overlay }	Yes
Tag	A single tag or a list of tags that this renderable will respond to when setting properties	Table, or String	Value of type ‘Table’, or Value of type ‘String’	Yes
Type	The type of the renderable.	String	Value of type ‘String’	Yes

Asset Examples

local transforms = asset.require("scene/solarsystem/planets/earth/transforms")



local omm = asset.resource({
  Name = "Satellite OMM Data (ARGOS)",
  Type = "UrlSynchronization",
  Identifier = "satellite_omm_data_argos",
  Url = "https://www.celestrak.com/NORAD/elements/gp.php?GROUP=argos&FORMAT=kvn",
  Filename = "argos.txt",
  SecondsUntilResync = openspace.time.secondsPerDay()
})


local Argos = {
  Identifier = "Argos",
  Parent = transforms.EarthInertial.Identifier,
  Renderable = {
    Type = "RenderableOrbitalKepler",
    Path = omm .. "argos.txt",
    Format = "OMM",
    SegmentQuality = 3,
    Color = { 0.75, 0.75, 0.35 },
    TrailFade = 17,
    PointSizeExponent = 5.0,
    RenderBinMode = "PostDeferredTransparent"
  },
  Tag = { "earth_satellites" },
  GUI = {
    Name = "ARGOS",
    Path = "/Solar System/Planets/Earth/Satellites"
  }
}


asset.onInitialize(function()
  openspace.addSceneGraphNode(Argos)
end)

asset.onDeinitialize(function()
  openspace.removeSceneGraphNode(Argos)
end)

asset.export(Argos)



asset.meta = {
  Name = "Satellites Weather - ARGOS",
  Description = "Satellites asset for Weather - ARGOS. Data from Celestrak",
  Author = "OpenSpace Team",
  URL = "https://celestrak.com/NORAD/elements/",
  License = "Celestrak"
}