imas.ids_defs¶

Load IMAS-Python libs to provide constants

Backend identifiers¶

The following constants are identifiers for the different Access Layer backends. Please see the Access Layer documentation for more details on the different backends.

imas.ids_defs.ASCII_BACKEND¶

Identifier for the ASCII backend.

imas.ids_defs.MDSPLUS_BACKEND¶

Identifier for the MDS+ backend.

imas.ids_defs.HDF5_BACKEND¶

Identifier for the HDF5 backend.

imas.ids_defs.MEMORY_BACKEND¶

Identifier for the memory backend.

imas.ids_defs.UDA_BACKEND¶

Identifier for the UDA backend.

Time modes¶

imas.ids_defs.IDS_TIME_MODE_HOMOGENEOUS¶

Use homogeneous time, all time coordinates refer to the toplevel time array.

imas.ids_defs.IDS_TIME_MODE_HETEROGENEOUS¶

Use heterogeneous time, time coordinates refer to their local time array.

imas.ids_defs.IDS_TIME_MODE_INDEPENDENT¶

Indicates that this IDS does not store time-dependent data.

Interpolation modes¶

imas.ids_defs.CLOSEST_INTERP¶

Interpolation method that returns the closest time slice in the original IDS (can break causality as it can return data ahead of requested time).

imas.ids_defs.PREVIOUS_INTERP¶

Interpolation method that returns the previous time slice if the requested time does not exactly exist in the original IDS.

imas.ids_defs.LINEAR_INTERP¶

Interpolation method that returns a linear interpolation between the existing slices before and after the requested time.

Serializer protocols¶

imas.ids_defs.ASCII_SERIALIZER_PROTOCOL¶

Identifier for the ASCII serialization protocol.

imas.ids_defs.FLEXBUFFERS_SERIALIZER_PROTOCOL¶

Identifier for the Flexbuffers serialization protocol. This protocol is more performant and results in a smaller buffer size than the ASCII_SERIALIZER_PROTOCOL.

New in version 1.1: Requires imas_core version 5.3 or newer.

imas.ids_defs.DEFAULT_SERIALIZER_PROTOCOL¶

Identifier for the default serialization protocol.