Features/celestial item factory (#225)

* Create Celestial item factory

* Update version

Author: sylvain-guillet

IO.Astrodynamics.Net/IO.Astrodynamics.CLI/IO.Astrodynamics.CLI.csproj

@@ -9,7 +9,7 @@
         <FileVersion>0.0.1</FileVersion>
         <PackAsTool>true</PackAsTool>
         <ToolCommandName>astro</ToolCommandName>
-        <Version>0.6.2</Version>
+        <Version>0.6.2.1</Version>
         <Title>Astrodynamics command line interface</Title>
         <Authors>Sylvain Guillet</Authors>
         <Description>This CLI allows end user to exploit IO.Astrodynamics framework </Description>

IO.Astrodynamics.Net/IO.Astrodynamics.Tests/Body/CelestialBodyTests.cs

@@ -70,12 +70,6 @@ public void CreateFromNaifObject()
         Assert.Equal(Frames.Frame.ECLIPTIC_J2000, moon.InitialOrbitalParameters.Frame);
     }
 
-    // [Fact]
-    // public void CreateExceptions()
-    // {
-    //     Assert.Throws<InvalidOperationException>(() => new CelestialBody(-399));
-    // }
-
     [Fact]
     public void FindOccultationsEclipse()
     {
@@ -109,22 +103,6 @@ public void FindWindowsOnDistanceConstraint()
         Assert.Equal(new TimeSystem.Time("2000-03-30T07:01:07.2974489 TDB"), windows.ElementAt(3).EndDate);
     }
 
-    // [Fact]
-    // public void FindWindowsOnCoordinateConstraint()
-    // {
-    //     var res = TestHelpers.EarthAtJ2000.FindWindowsOnCoordinateConstraint(
-    //         new Window(new TimeSystem.Time(DateTime.Parse("2005-10-03"), TimeFrame.TDBFrame), new TimeSystem.Time(DateTime.Parse("2005-11-03"), TimeFrame.TDBFrame)),
-    //         TestHelpers.MoonAtJ2000, TestHelpers.MoonAtJ2000.Frame, CoordinateSystem.Latitudinal, Coordinate.Latitude, RelationnalOperator.Greater, 0.0, 0.0, Aberration.None,
-    //         TimeSpan.FromSeconds(60.0));
-    //
-    //     var windows = res as Window[] ?? res.ToArray();
-    //     Assert.Equal(2, windows.Length);
-    //     Assert.Equal("2005-10-03T17:24:29.0992341 TDB", windows[0].StartDate.ToString());
-    //     Assert.Equal("2005-10-16T17:50:20.7049530 TDB", windows[0].EndDate.ToString());
-    //     Assert.Equal("2005-10-31T00:27:02.6705884 TDB", windows[1].StartDate.ToString());
-    //     Assert.Equal("2005-11-03T00:00:00.0000000 TDB", windows[1].EndDate.ToString());
-    // }
-
     [Fact]
     public void AngularSize()
     {
@@ -527,4 +505,32 @@ public void FindCenterOfMotionId_ReturnsTen_ForLagrangePoint394()
         var celestialItem = new LagrangePoint(LagrangePoints.L4);
         Assert.Equal(10, celestialItem.CenterOfMotionId);
     }
+    
+    [Fact]
+    public void Create_ReturnsBarycenter_ForNaifIdLessThan10()
+    {
+        var result = CelestialItem.Create(5);
+        Assert.IsType<Barycenter>(result);
+    }
+
+    [Fact]
+    public void Create_ReturnsLagrangePoint_ForNaifIdBetweenL1AndL5()
+    {
+        var result = CelestialItem.Create(391);
+        Assert.IsType<LagrangePoint>(result);
+    }
+
+    [Fact]
+    public void Create_ReturnsCelestialBody_ForNaifIdGreaterThan10AndNotLagrangePoint()
+    {
+        var result = CelestialItem.Create(199);
+        Assert.IsType<CelestialBody>(result);
+    }
+
+    [Fact]
+    public void Create_ReturnsLagrangePoint_WithCorrectName()
+    {
+        var result = (LagrangePoint)CelestialItem.Create(392);
+        Assert.Equal("L2", result.Name);
+    }
 }

IO.Astrodynamics.Net/IO.Astrodynamics/Body/CelestialItem.cs

@@ -12,6 +12,7 @@
 using IO.Astrodynamics.OrbitalParameters;
 using IO.Astrodynamics.SolarSystemObjects;
 using IO.Astrodynamics.TimeSystem;
+using MathNet.Numerics.LinearAlgebra;
 using Window = IO.Astrodynamics.TimeSystem.Window;
 
 namespace IO.Astrodynamics.Body;
@@ -192,6 +193,21 @@ protected CelestialItem(int naifId, string name, double mass, OrbitalParameters.
             : new GravitationalField();
     }
 
+    public static CelestialItem Create(int naifId)
+    {
+        if (naifId < 10)
+        {
+            return new Barycenter(naifId);
+        }
+
+        if (LagrangePoints.L1.NaifId <= naifId && naifId <= LagrangePoints.L5.NaifId)
+        {
+            return new LagrangePoint(new NaifObject(naifId, $"L{naifId - 390}", null));
+        }
+
+        return new CelestialBody(naifId);
+    }
+
     internal void AddSatellite(CelestialItem celestialItem)
     {
         _satellites.Add(celestialItem);

IO.Astrodynamics.Net/IO.Astrodynamics/IO.Astrodynamics.nuspec

@@ -4,7 +4,7 @@
         <id>IO.Astrodynamics</id>
         <authors>Sylvain Guillet</authors>
         <copyright>Sylvain Guillet</copyright>
-        <version>6.1.2</version>
+        <version>6.2.0</version>
         <title>Astrodynamics framework</title>
         <icon>images\dragonfly-dark-trans.png</icon>
         <readme>docs\README.md</readme>