Allow binary orbits without text source

Closes: #1088

src/celengine/trajmanager.cpp

@@ -83,6 +83,21 @@ Orbit* TrajectoryInfo::load(const fs::path& filename)
             break;
         }
     }
+    else if (filetype == Content_CelestiaXYZVBinary)
+    {
+        switch (precision)
+        {
+        case TrajectoryPrecisionSingle:
+            sampTrajectory = LoadXYZVBinarySinglePrec(strippedFilename, interpolation);
+            break;
+        case TrajectoryPrecisionDouble:
+            sampTrajectory = LoadXYZVBinaryDoublePrec(strippedFilename, interpolation);
+            break;
+        default:
+            assert(0);
+            break;
+        }
+    }
     else
     {
         switch (precision)

src/celephem/samporbit.cpp

@@ -934,3 +934,18 @@ Orbit* LoadXYZVTrajectoryDoublePrec(const fs::path& filename, TrajectoryInterpol
 
     return LoadSampledOrbitXYZV(filename, interpolation, 0.0);
 }
+
+/*! Load a binary trajectory file with single precision positions and velocities.
+ */
+Orbit* LoadXYZVBinarySinglePrec(const fs::path& filename, TrajectoryInterpolation interpolation)
+{
+    return LoadSampledOrbitXYZVBinary(filename, interpolation, 0.0f);
+}
+
+
+/*! Load a trajectory file with double precision positions and velocities.
+ */
+Orbit* LoadXYZVBinaryDoublePrec(const fs::path& filename, TrajectoryInterpolation interpolation)
+{
+    return LoadSampledOrbitXYZVBinary(filename, interpolation, 0.0);
+}

src/celephem/samporbit.h

@@ -29,5 +29,6 @@ extern Orbit* LoadSampledTrajectoryDoublePrec(const fs::path& filename, Trajecto
 extern Orbit* LoadSampledTrajectorySinglePrec(const fs::path& filename, TrajectoryInterpolation interpolation);
 extern Orbit* LoadXYZVTrajectoryDoublePrec(const fs::path& filename, TrajectoryInterpolation interpolation);
 extern Orbit* LoadXYZVTrajectorySinglePrec(const fs::path& filename, TrajectoryInterpolation interpolation);
-
+extern Orbit* LoadXYZVBinarySinglePrec(const fs::path& filename, TrajectoryInterpolation interpolation);
+extern Orbit* LoadXYZVBinaryDoublePrec(const fs::path& filename, TrajectoryInterpolation interpolation);
 #endif // _CELENGINE_SAMPORBIT_H_

src/celutil/filetype.cpp

@@ -35,7 +35,8 @@ static const char CelestiaModelExt[] = ".cmod";
 static const char CelestiaParticleSystemExt[] = ".cpart";
 static const char CelestiaXYZTrajectoryExt[] = ".xyz";
 static const char CelestiaXYZVTrajectoryExt[] = ".xyzv";
-static const char Content_WarpMeshExt[] = ".map";
+static const char ContentXYZVBinaryExt[] = ".xyzvbin";
+static const char ContentWarpMeshExt[] = ".map";
 
 ContentType DetermineFileType(const fs::path& filename)
 {
@@ -82,8 +83,9 @@ ContentType DetermineFileType(const fs::path& filename)
         return Content_CelestiaXYZTrajectory;
     if (compareIgnoringCase(CelestiaXYZVTrajectoryExt, ext) == 0)
         return Content_CelestiaXYZVTrajectory;
-    if (compareIgnoringCase(Content_WarpMeshExt, ext) == 0)
+    if (compareIgnoringCase(ContentWarpMeshExt, ext) == 0)
         return Content_WarpMesh;
-    else
-        return Content_Unknown;
+    if (compareIgnoringCase(ContentXYZVBinaryExt, ext) == 0)
+        return Content_CelestiaXYZVBinary;
+    return Content_Unknown;
 }

src/celutil/filetype.h

@@ -36,6 +36,7 @@ enum ContentType
     Content_CelestiaXYZVTrajectory = 19,
     Content_CelestiaParticleSystem = 20,
     Content_WarpMesh               = 21,
+    Content_CelestiaXYZVBinary     = 22,
     Content_Unknown                = -1,
 };