debris_shared and satellite_shared

data/assets/scene/solarsystem/planets/earth/satellites/debris/debris_breezem.asset

@@ -1,5 +1,5 @@
 local assetHelper = asset.require('util/asset_helper')
-local shared = asset.require('../satellites_shared')
+local shared = asset.require('../debris_shared')
 
 local group = {
     Title = "Breeze-M Breakup",

data/assets/scene/solarsystem/planets/earth/satellites/debris/debris_fengyun.asset

@@ -1,5 +1,5 @@
 local assetHelper = asset.require('util/asset_helper')
-local shared = asset.require('../satellites_shared')
+local shared = asset.require('../debris_shared')
 
 local group = {
     Title = "Fengyun Debris",

data/assets/scene/solarsystem/planets/earth/satellites/debris/debris_iridium33.asset

@@ -1,5 +1,5 @@
 local assetHelper = asset.require('util/asset_helper')
-local shared = asset.require('../satellites_shared')
+local shared = asset.require('../debris_shared')
 
 local group = {
     Title = "Iridium 33 Debris",

data/assets/scene/solarsystem/planets/earth/satellites/debris/debris_kosmos2251.asset

@@ -1,5 +1,5 @@
 local assetHelper = asset.require('util/asset_helper')
-local shared = asset.require('../satellites_shared')
+local shared = asset.require('../debris_shared')
 
 local group = {
     Title = "Kosmos 2251 Debris",

data/assets/scene/solarsystem/planets/earth/satellites/debris_shared.asset

@@ -0,0 +1,90 @@
+local transforms = asset.require('scene/solarsystem/planets/earth/transforms')
+local assetHelper = asset.require('util/asset_helper')
+
+local satImageFolder = asset.syncedResource({
+    Name = "Satellite Image Files",
+    Type = "HttpSynchronization",
+    Identifier = "tle_satellites_images",
+    Version = 1
+})
+
+function downloadTLEFile(sceneAsset, url, name)
+    local identifier = name
+    identifier = identifier:gsub(" ", "")
+    identifier = identifier:gsub("&", "")
+    identifier = identifier:gsub("-", "")
+    return sceneAsset.syncedResource({
+        Name = "Satellite TLE Data (" .. name .. ")",
+        Type = "UrlSynchronization",
+        Identifier = "satellite_tle_data_" .. identifier,
+        Url = url
+    })
+end
+
+local addSatelliteGroupObjects = function(group, tleFolder, shouldAddDuplicates)
+     local filename = group.Url:match("([^/]+)$")
+     local filenameSansExt = filename:gsub(filename:match("(%.%w+)$"), "")
+
+     local path = tleFolder .. "/" .. filename
+
+    function numLinesInFile(filename)
+        local ctr = 0
+        for _ in io.lines(filename) do ctr = ctr + 1 end
+        return ctr
+    end
+
+    -- Check format of a set of 3 TLE file lines and return nonzero if there is a format error
+    function isValidTLEFileFormat(lineArr)
+        function isEmpty(s) return s == nil or s == '' end
+
+        if isEmpty(lineArr[1]) or isEmpty(lineArr[2]) or isEmpty(lineArr[3]) then
+            return false
+        end
+        if string.sub(lineArr[2], 1, 2) ~= "1 " then
+            return false
+        end
+        if string.sub(lineArr[3], 1, 2) ~= "2 " then
+            return false
+        end
+        return true
+    end
+
+    function debris(title, file)
+        return {
+           Identifier = title,
+           Parent = transforms.EarthInertial.Identifier,
+           Renderable = {
+                Type = "RenderableSatellites",
+                Path = file,
+
+                -- The initialization with "-" is just a placeholder.
+                -- (needed to be initialized)
+                Segments = 160,
+                EccentricityColumn = "-",
+                SemiMajorAxisColumn = "-",
+                SemiMajorAxisUnit = 1,
+                InclinationColumn = "-",
+                AscendingNodeColumn = "-",
+                ArgumentOfPeriapsisColumn = "-",
+                MeanAnomalyAtEpochColumn = "-",
+                EpochColumn = "-",
+                
+            },
+            GUI = {
+                Path = "/Solar System/Planets/Earth/Satellites"
+           }
+        }
+    end
+
+    local Debris = debris(filenameSansExt, path)
+    assetHelper.registerSceneGraphNodesAndExport(asset, { Debris })
+
+    -- asset.export("satImageFolder", satImageFolder)
+
+end
+
+asset.export("downloadTLEFile", downloadTLEFile)
+asset.export("addSatelliteGroupObjects", addSatelliteGroupObjects)
+
+
+

data/assets/scene/solarsystem/planets/earth/satellites/satellites_debris.asset

@@ -1,5 +1,4 @@
-asset.request('./debris/debris_asat')
---asset.request('./debris/debris_breezem')
---asset.request('./debris/debris_fengyun')
---asset.request('./debris/debris_iridium33')
---asset.request('./debris/debris_kosmos2251')
+asset.request('./debris/debris_breezem')
+asset.request('./debris/debris_fengyun')
+asset.request('./debris/debris_iridium33')
+asset.request('./debris/debris_kosmos2251')

data/assets/scene/solarsystem/planets/earth/satellites/satellites_shared.asset

@@ -1,5 +1,4 @@
 local transforms = asset.require('scene/solarsystem/planets/earth/transforms')
-local assetHelper = asset.require('util/asset_helper')
 
 local satImageFolder = asset.syncedResource({
     Name = "Satellite Image Files",
@@ -22,11 +21,6 @@ function downloadTLEFile(sceneAsset, url, name)
 end
 
 local addSatelliteGroupObjects = function(group, tleFolder, shouldAddDuplicates)
-     local filename = group.Url:match("([^/]+)$")
-     local filenameSansExt = filename:gsub(filename:match("(%.%w+)$"), "")
-
-     local path = tleFolder .. "/" .. filename
-
     function numLinesInFile(filename)
         local ctr = 0
         for _ in io.lines(filename) do ctr = ctr + 1 end
@@ -49,6 +43,7 @@ local addSatelliteGroupObjects = function(group, tleFolder, shouldAddDuplicates)
         return true
     end
 
+<<<<<<< HEAD
     function debris(title, file, color)
         return {
            Identifier = title,
@@ -71,21 +66,132 @@ local addSatelliteGroupObjects = function(group, tleFolder, shouldAddDuplicates)
                 Color = color
             },
             
+=======
+    function getSat(title, file, lineNum, textureFile, group)
+        return {
+            Identifier = title,
+            Parent = transforms.EarthInertial.Identifier,
+            Renderable = {
+                Type = "RenderablePlaneImageLocal",
+                Enabled = false,
+                Size = 3e4,
+                Origin = "Center",
+                Body = "TLE",
+                Billboard = true,
+                Texture = textureFile
+            },
+            Transform = {
+                Translation = {
+                    Type = "TLETranslation",
+                    Body = title,
+                    Observer = transforms.EarthInertial.Identifier,
+                    File = file,
+                    LineNumber = lineNum
+                },
+                Scale = {
+                    Type = "StaticScale",
+                    Scale = 1
+                }
+            },
+            Tag = { "earth_satellite_" .. group, "earth_satellite_" .. group .. "_marker" },
+>>>>>>> debris_shared and satellite_shared
             GUI = {
                 Path = "/Solar System/Planets/Earth/Satellites"
-           }
+            }
         }
     end
 
+<<<<<<< HEAD
     local Debris = debris(filenameSansExt, path, group.TrailColor)
     assetHelper.registerSceneGraphNodesAndExport(asset, { Debris })
+=======
+    function getSatTrail(title, file, lineNum, per, color, group)
+        return {
+            Identifier = title .. "_trail",
+            Parent = transforms.EarthInertial.Identifier,
+            Renderable = {
+                Type = "RenderableTrailOrbit",
+                Translation = {
+                    Type = "TLETranslation",
+                    Body = title,
+                    Observer = transforms.EarthInertial.Identifier,
+                    File = file,
+                    LineNumber = lineNum
+                },
+                Color = color,
+                Period = per,
+                Resolution = 160
+            },
+            Tag = { "earth_satellite_" .. group, "earth_satellite_" .. group .. "_trail"},
+            GUI = {
+                Path = "/Solar System/Planets/Earth/Satellites"
+            }
+        }
+    end
+>>>>>>> debris_shared and satellite_shared
 
-    -- asset.export("satImageFolder", satImageFolder)
 
+    local filename = group.Url:match("([^/]+)$")
+    local filenameSansExt = filename:gsub(filename:match("(%.%w+)$"), "")
+
+    local path = tleFolder .. "/" .. filename
+    local texture = satImageFolder .. "/" .. "satB.png"
+
+
+    local file = io.open(path, "r")
+    assert(file, "File not found: " .. path)
+    local obj = {}
+    --now loop through the tle file and get each set of 3 lines
+    for n = 1, numLinesInFile(path), 3 do
+        local line = {
+            file:read('*l'), --title line
+            file:read('*l'),
+            file:read('*l')
+        }
+        assert(isValidTLEFileFormat(line), "TLE file syntax error on line " .. n .. ": " .. path)
+
+        -- Trim string
+        line[1] = line[1]:gsub("^%s*(.-)%s*$", "%1")
+        line[1] = line[1]:gsub("%s+", "_")
+        line[1] = line[1]:gsub("[%-()]", "")
+        local title = line[1]
+
+        -- Get period from correct location of the string
+        local per = tonumber(string.sub(line[3], 53, 63))
+        -- Trail for 2x a single revolution
+        per = 1.0 / per * 2.0
+
+        local satName = filenameSansExt .. "_" .. title
+
+        local shouldAddNotes = true
+        if openspace.hasSceneGraphNode(satName) then
+            if shouldAddDuplicates then
+                local originalSatName = satName
+                local i = 1
+                while openspace.hasSceneGraphNode(satName) do
+                    satName = originalSatName .. "_" .. tostring(i)
+                    i = i + 1
+                end
+            else
+                shouldAddNotes = false
+            end
+       end
+
+       if shouldAddNotes then
+            -- Register satellite object and trail
+            local sat_var = getSat(satName, path, n, texture, group.Title)
+            openspace.addSceneGraphNode(sat_var)
+            table.insert(obj, sat_var.Identifier)
+
+            local satTrail_var = getSatTrail(satName, path, n, per, group.TrailColor, group.Title)
+            openspace.addSceneGraphNode(satTrail_var)
+            table.insert(obj, satTrail_var.Identifier)
+        end
+    end
+
+    return obj
 end
 
+asset.export("satImageFolder", satImageFolder)
 asset.export("downloadTLEFile", downloadTLEFile)
-asset.export("addSatelliteGroupObjects", addSatelliteGroupObjects)
-
-
-
+asset.export("addSatelliteGroupObjects", addSatelliteGroupObjects)

data/assets/spaceDebris.scene

@@ -16,8 +16,8 @@ asset.require('util/webgui')
 
 --asset.request('customization/globebrowsing')
 
--- asset.request('scene/solarsystem/planets/earth/satellites/satellites_all')
-asset.request('scene/solarsystem/planets/earth/satellites/satellites_debris')
+asset.request('scene/solarsystem/planets/earth/satellites/satellites_all')
+-- asset.request('scene/solarsystem/planets/earth/satellites/satellites_debris')
 
 -- Keybindings that are specific for this scene
 local Keybindings = {