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IO Aerospace

SpiceAPI & Data Providers

SpiceAPI & Data Providers¶

SpiceAPI¶

SpiceAPI is the singleton entry point for SPICE-backed operations.

Method	Description
`LoadKernels(FileSystemInfo path)`	Load a kernel file or a directory of kernels
`UnloadKernels(FileSystemInfo path)`	Unload one kernel or a directory load
`ClearKernels()`	Unload all kernels
`GetLoadedKernels()`	Inspect the current kernel set
`GetSpiceVersion()`	Read the underlying CSPICE version
`ReadEphemeris(...)`	Read state data (throws `InvalidOperationException` on native error)
`ReadOrientation(...)`	Read orientation data (throws `InvalidOperationException` on native error)

Example¶

SpiceAPI.Instance.LoadKernels(new DirectoryInfo("kernels/"));

foreach (var kernel in SpiceAPI.Instance.GetLoadedKernels())
    Console.WriteLine(kernel);

Configuration¶

Use Configuration.Instance.SetDataProvider(...) to swap between SPICE-backed and memory-backed data access.

Data Providers¶

Provider	Description
`SpiceDataProvider`	Default provider using SPICE kernels for production use
`MemoryDataProvider`	In-memory provider for testing without kernel files

MemoryDataProvider¶

Method	Description
`AddCelestialBodyInfo(params CelestialBody[] bodies)`	Add celestial body data
`AddStateVector(int naifId, Time date, StateVector sv)`	Add state vector
`AddStateOrientationToICRF(Frame frame, Time date, StateOrientation orientation)`	Add orientation

var memoryProvider = new MemoryDataProvider();
Configuration.Instance.SetDataProvider(memoryProvider);
memoryProvider.AddCelestialBodyInfo(customEarth);

See Also¶