Add new TimeFrame that parses Spice kernels (#3600)

data/assets/examples/timeframe/timeframekernel/kernel_ck-multiple.asset

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+-- CK Multiple
+-- This example creates a time frame based on the information provided by multiple SPICE
+-- kernel files that contain orientation information about the same object. The created
+-- scene graph node will only be valid whenever any window in any of the provided kernels
+-- contains information about refernence frame "-98000", which is the intertial
+-- orientation frame for the New Horizons spacecraft.
+
+-- We need a SPICE kernel to work with in this example
+local data = asset.resource({
+  Name = "New Horizons Kernels",
+  Type = "HttpSynchronization",
+  Identifier = "newhorizons_kernels",
+  Version = 1
+})
+
+local Node = {
+  Identifier = "TimeFrameKernel_Example_CK_Multiple",
+  TimeFrame = {
+    Type = "TimeFrameKernel",
+    CK = {
+      Kernels = {
+        data .. "nh_apf_20150404_20150420_001.bc",
+        data .. "nh_apf_20150420_20150504_001.bc",
+        data .. "new-horizons_1121.tsc"
+      },
+      Reference = "-98000"
+    }
+  },
+  Renderable = {
+    Type = "RenderableCartesianAxes"
+  },
+  GUI = {
+    Name = "TimeFrameKernel - Basic (CK, Multiple)",
+    Path = "/Examples"
+  }
+}
+
+asset.onInitialize(function()
+  openspace.addSceneGraphNode(Node)
+end)
+
+asset.onDeinitialize(function()
+  openspace.removeSceneGraphNode(Node)
+end)

data/assets/examples/timeframe/timeframekernel/kernel_ck.asset

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+-- CK Basic
+-- This example creates a time frame based on the information provided by a single SPICE
+-- kernel file. The created scene graph node will only be valid whenever the provided
+-- kernel contains information about about the reference frame "-98000", which is the
+-- interial orientation frame for the New Horizons spacecraft.
+
+-- We need a SPICE kernel to work with in this example
+local data = asset.resource({
+  Name = "New Horizons Kernels",
+  Type = "HttpSynchronization",
+  Identifier = "newhorizons_kernels",
+  Version = 1
+})
+
+local Node = {
+  Identifier = "TimeFrameKernel_Example_CK",
+  TimeFrame = {
+    Type = "TimeFrameKernel",
+    CK = {
+      Kernels = {
+        data .. "nh_apf_20150404_20150420_001.bc",
+        data .. "new-horizons_1121.tsc",
+      },
+      Reference = "-98000"
+    }
+  },
+  Renderable = {
+    Type = "RenderableCartesianAxes"
+  },
+  GUI = {
+    Name = "TimeFrameKernel - Basic (CK)",
+    Path = "/Examples"
+  }
+}
+
+asset.onInitialize(function()
+  openspace.addSceneGraphNode(Node)
+end)
+
+asset.onDeinitialize(function()
+  openspace.removeSceneGraphNode(Node)
+end)

data/assets/examples/timeframe/timeframekernel/kernel_spk-ck.asset

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+-- Combined example
+-- This example creates a time frame based on the information provided by multiple SPICE
+-- kernel files. The created scene graph node will only be valid whenever the provided
+-- kernels contain information positional information about the object "JUICE" as well as
+-- orientation information for the reference frame "-28002" which is the measured attitude
+-- for the JUICE spacecraft. The time frame will only be valid if both pieces of data are
+-- available.
+
+-- We need a SPICE kernel to work with in this example
+local data = asset.resource({
+  Name = "JUICE Kernels",
+  Type = "HttpSynchronization",
+  Identifier = "juice_kernels",
+  Version = 2
+})
+
+local Node = {
+  Identifier = "TimeFrameKernel_Example_Combined_SPK-CK",
+  TimeFrame = {
+    Type = "TimeFrameKernel",
+    SPK = {
+      Kernels = data .. "juice_orbc_000031_230414_310721_v03.bsp",
+      Object = "JUICE"
+    },
+    CK = {
+      Kernels = {
+        data .. "juice_sc_meas_230413_230415_s230414_v01.bc",
+        data .. "juice_step_230414_v01.tsc"
+      },
+      Reference = "-28002"
+    }
+  },
+  Renderable = {
+    Type = "RenderableCartesianAxes"
+  },
+  GUI = {
+    Name = "TimeFrameKernel - Combined (SPK+CK)",
+    Path = "/Examples"
+  }
+}
+
+asset.onInitialize(function()
+  openspace.addSceneGraphNode(Node)
+end)
+
+asset.onDeinitialize(function()
+  openspace.removeSceneGraphNode(Node)
+end)

data/assets/examples/timeframe/timeframekernel/kernel_spk-multiple.asset

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+-- SPK Multiple
+-- This example creates a time frame based on the information provided by multiple SPICE
+-- kernel files that contain position information about the same object. The created scene
+-- graph node will only be valid whenever any window in any of the provided kernels
+-- contains information about object "VOYAGER 1".
+
+-- We need a SPICE kernel to work with in this example
+local data = asset.resource({
+  Name = "Voyager 1 Kernels",
+  Type = "HttpSynchronization",
+  Identifier = "voyager1_spice",
+  Version = 2
+})
+
+local Node = {
+  Identifier = "TimeFrameKernel_Example_SPK_Multiple",
+  TimeFrame = {
+    Type = "TimeFrameKernel",
+    SPK = {
+      Kernels = {
+        data .. "vgr1_jup230.bsp",
+        data .. "vgr1_sat337.bsp"
+      },
+      Object = "VOYAGER 1"
+    }
+  },
+  Renderable = {
+    Type = "RenderableCartesianAxes"
+  },
+  GUI = {
+    Name = "TimeFrameKernel - Basic (SPK, Multiple)",
+    Path = "/Examples"
+  }
+}
+
+asset.onInitialize(function()
+  openspace.addSceneGraphNode(Node)
+end)
+
+asset.onDeinitialize(function()
+  openspace.removeSceneGraphNode(Node)
+end)

data/assets/examples/timeframe/timeframekernel/kernel_spk.asset

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+-- SPK Basic
+-- This example creates a time frame based on the information provided by a single SPICE
+-- kernel file. The created scene graph node will only be valid whenever the provided
+-- kernel contains information about object "-915", which is Apollo 15. In this specific
+-- case, the Apollo15 kernel contains two windows of valid data, both of which are used by
+-- this time frame.
+
+-- We need a SPICE kernel to work with in this example
+local data = asset.resource({
+  Name = "Apollo Kernels",
+  Type = "HttpSynchronization",
+  Identifier = "apollo_spice",
+  Version = 1
+})
+
+local Node = {
+  Identifier = "TimeFrameKernel_Example_SPK",
+  TimeFrame = {
+    Type = "TimeFrameKernel",
+    SPK = {
+      Kernels = data .. "apollo15-1.bsp",
+      Object = "-915"
+    }
+  },
+  Renderable = {
+    Type = "RenderableCartesianAxes"
+  },
+  GUI = {
+    Name = "TimeFrameKernel - Basic (SPK)",
+    Path = "/Examples"
+  }
+}
+
+asset.onInitialize(function()
+  openspace.addSceneGraphNode(Node)
+end)
+
+asset.onDeinitialize(function()
+  openspace.removeSceneGraphNode(Node)
+end)