Add asset for Shepherd moon group of Saturn system

2026-05-12 14:29:42 -05:00 · 2022-06-30 12:36:30 +02:00
parent c95dcee99e
commit 52be71b4c8
1 changed files with 178 additions and 0 deletions
@@ -0,0 +1,178 @@
+local proceduralGlobes = asset.require("util/procedural_globe")
+local transforms = asset.require("../transforms")
+
+local syncedKernels = asset.syncedResource({
+  Name = "Saturn Shepherd Moons Spice Kernels",
+  Type = "HttpSynchronization",
+  Identifier = "saturn_shepherd_kernels",
+  Version = 1
+})
+
+local kernels = {
+  syncedKernels .. "./sat415.bsp",
+  syncedKernels .. "./sat393_daphnis.bsp"
+}
+
+local parentIdentifier = transforms.SaturnBarycenter.Identifier
+local parentSpice = "SATURN BARYCENTER"
+local guiPath = "/Solar System/Planets/Saturn/Moons/Shepherd Moons"
+local tags = { "moon_solarSystem", "moon_giants", "moon_saturn", "moon_shepherd", "moon_minor" }
+local trailColor = { 0.5, 0.3, 0.3 }
+local trailTags = { 
+  "moonTrail_solarSystem",
+  "moonTrail_giants",
+  "moonTrail_saturn",
+  "moonTrail_minor"
+}
+
+local shepherdGroup = {
+  {
+    Identifier = "Prometheus",
+    Parent = {
+      Identifier = parentIdentifier,
+      Spice = parentSpice
+    },
+    Spice = "PROMETHEUS",
+    Radii = { 135600, 79400, 59400 },
+    Tags = tags,
+    TrailTags = trailTags,
+    GUI = {
+      Path = guiPath
+    },
+    TrailColor = trailColor,
+    OrbitPeriod = 0.612990038,
+    Kernels = kernels
+  },
+  {
+    Identifier = "Pandora",
+    Parent = {
+      Identifier = parentIdentifier,
+      Spice = parentSpice
+    },
+    Spice = "PANDORA",
+    Radii = { 104000, 81000, 64000 },
+    Tags = tags,
+    TrailTags = trailTags,
+    GUI = {
+      Path = guiPath
+    },
+    TrailColor = trailColor,
+    OrbitPeriod = 0.628504213,
+    Kernels = kernels
+  },
+  {
+    Identifier = "Atlas",
+    Parent = {
+      Identifier = parentIdentifier,
+      Spice = parentSpice
+    },
+    Spice = "ATLAS",
+    Radii = { 40800, 35400, 18800 },
+    Tags = tags,
+    TrailTags = trailTags,
+    GUI = {
+      Path = guiPath
+    },
+    TrailColor = trailColor,
+    OrbitPeriod = 0.6016947883,
+    Kernels = kernels
+  },
+  {
+    Identifier = "Janus",
+    Parent = {
+      Identifier = parentIdentifier,
+      Spice = parentSpice
+    },
+    Spice = "JANUS",
+    Radii = { 203000, 185000, 152600 },
+    Tags = tags,
+    TrailTags = trailTags,
+    GUI = {
+      Path = guiPath
+    },
+    TrailColor = trailColor,
+    OrbitPeriod = 0.694660342,
+    Kernels = kernels
+  },
+  {
+    Identifier = "Epimetheus",
+    Parent = {
+      Identifier = parentIdentifier,
+      Spice = parentSpice
+    },
+    Spice = "EPIMETHEUS",
+    Radii = { 129800, 114000, 106200 },
+    Tags = tags,
+    TrailTags = trailTags,
+    GUI = {
+      Path = guiPath
+    },
+    TrailColor = trailColor,
+    OrbitPeriod = 0.694333517,
+    Kernels = kernels
+  },
+  {
+    Identifier = "Daphnis",
+    Parent = {
+      Identifier = parentIdentifier,
+      Spice = parentSpice
+    },
+    Spice = "DAPHNIS",
+    Radii = { 8600, 8200, 6400 },
+    Tags = tags,
+    TrailTags = trailTags,
+    GUI = {
+      Path = guiPath
+    },
+    TrailColor = trailColor,
+    OrbitPeriod = 0.5940798,
+    Kernels = kernels
+  },
+  {
+    Identifier = "Pan",
+    Parent = {
+      Identifier = parentIdentifier,
+      Spice = parentSpice
+    },
+    Spice = "PAN",
+    Radii = { 34400, 31400, 20800 },
+    Tags = tags,
+    TrailTags = trailTags,
+    GUI = {
+      Path = guiPath
+    },
+    TrailColor = trailColor,
+    OrbitPeriod = 0.575050718,
+    Kernels = kernels
+  }
+}
+
+local nodes = proceduralGlobes.createGlobes(shepherdGroup)
+
+asset.onInitialize(function()
+  for _, node in ipairs(nodes) do
+    openspace.addSceneGraphNode(node)
+  end
+end)
+
+asset.onDeinitialize(function()
+  for i = #nodes, 1, -1 do
+    openspace.removeSceneGraphNode(nodes[i])
+  end
+end)
+
+for _, node in ipairs(nodes) do
+  asset.export(node)
+end
+
+
+asset.meta = {
+  Name = "Saturn Shepherd Moons",
+  Version = "1.0",
+  Description = [[ Procedural Globe asset containing Saturn's Shepherd moons:
+    Prometheus, Pandora, Atlas, Janus, Epimetheus, Daphnis and Pan. Blank globes
+    and SPICE trails are generated for each moon.]],
+  Author = "OpenSpace Team",
+  URL = "http://openspaceproject.com",
+  License = "MIT license"
+}