RenderableConstellationBounds

Inherits Renderable

Members

Name	Documentation	Type	Description	Optional
File	A file that contains the vertex locations of the constellations bounds.	File	Value of type ‘File’	No
Color	The color of the lines.	Color3	Value of type ‘Color3’	Yes
Labels	The labels for the constellations.	Table	LabelsComponent	Yes
LineWidth	The line width of the constellation.	Double	Value of type ‘Double’	Yes
NamesFile	Specifies the file that contains the mapping between constellation abbreviations and full names of the constellations. If this value is empty, the abbreviations are used as the full names.	File	Value of type ‘File’	Yes
Selection	The constellations that are selected are displayed on the celestial sphere.	Table	Table parameters	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

Table parameters for Selection

The constellations that are selected are displayed on the celestial sphere.

• Optional: Yes

Name	Documentation	Type	Description	Optional
*		String	Value of type ‘String’	Yes

Asset Examples

local coreKernels = asset.require("spice/core")



local data = asset.resource({
  Name = "Constellation Files",
  Type = "HttpSynchronization",
  Identifier = "digitaluniverse_constellations_data",
  Version = 1
})


local zodiacs = {
  "CNC", "TAU", "PSC", "ARI", "LIB", "AQR", "CAP", "SCO", "VIR", "SGR", "GEM", "LEO"
}

local Object = {
  Identifier = "ConstellationBounds",
  Renderable = {
    Type = "RenderableConstellationBounds",
    Enabled = false,
    File = data .. "bound_20.dat",
    NamesFile = data .. "constellations.dat",
    -- Selection = zodiacs
  },
  Transform = {
    Rotation = {
      Type = "SpiceRotation",
      SourceFrame = coreKernels.Frame.J2000,
      DestinationFrame = coreKernels.Frame.Galactic
    },
    Scale = {
      Type = "StaticScale",
      Scale = 10e17
    }
  },
  GUI = {
    Name = "Constellation Boundaries",
    Path = "/Milky Way/Constellations",
    Description = [[As a continent is divided into countries, astronomers divide the sky
      into 88 regions called constellations. Every object falls into one of these 88
      regions. The boundaries of these regions are shown in this asset. Use these in
      concert with the constellation labels. Census: 88 constellations.]]
  }
}


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

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

asset.export(Object)



asset.meta = {
  Name = "Constellation Bounds",
  Description = Object.GUI.Description,
  Author = "Brian Abbott (AMNH)",
  URL = "https://www.amnh.org/research/hayden-planetarium/digital-universe",
  License = "AMNH Digital Universe"
}