Framework Changes#

Algorithms#

New features#

HFIRPowderReduction v1 now attempts to autopopulate the sample absorption parameters if correct data is found in sample run files
SumSpectra v1 algorithm has been optimized for better performance.
FileFinder and MultipleFileProperty now resolve multi-run hint strings (ranges and lists) in a single batched archive lookup for HFIR and SNS data, replacing the previous per-run network round trips to ONCat.
Algorithm ConvertToMD v1 now accepts an option, UseLogTimes, to use log times of neutron events in coordinate calculations instead of their average.
Stitch1D and Stitch1DMany now have a UseValidDataOnly option which, when true, ignores the contribution of invalid signal values to overlap bins when another workspace has valid data in the same bin. When false (default) previous behaviour is maintained, where presence of invalid data in an overlap bin from either workspace results in the same invalid value in the output workspace.
A new property OutputWorkspaceSuffixes has been added to the Stitch1DMany v1 algorithm, which allows users to specify custom suffixes for the child workspaces in the output group when stitching workspace groups.

Bugfixes#

In BeamProfileFactory the auto-generated beam profile dimensions are now correct when the sample bounding box is offset from the origin. The beam half-extent is now taken from the furthest sample face on either side, so the beam remains valid for samples that are translated or rotated into a negative half-space.
In EstimateScatteringVolumeCentreOfMass the shape object now accounts for the goniometer set on the workspace. Previously this was not the case which gave erroneous values in non-rotationally symmetric situations.
FileFinder now recognises compound file extensions (e.g. .nxs.h5) listed in Facilities.xml when expanding multi-run hints, so ranges such as CNCS100:105.nxs.h5 resolve correctly instead of being misinterpreted as a stem ending in .nxs plus an .h5 extension. As a consequence, a hint that explicitly specifies one extension (e.g. BSS_24234_event.nxs or SXD30904.raw.md5) no longer silently resolves to a file with a different extension; specify the run number without an extension to let the facility’s preferred extensions apply.
:ref: CreateDetectorTable <algm-CreateDetectorTable> has received some performance improvements that should speed up the algorithm significantly for large workspaces with many spectra. This algorithm is used in the new Instrument View when opening, so this should improve the performance of that interface as well.
ExtractSpectra no longer gives an error when the argument DetectorList is used on focused workspaces where a workspace index maps to several detector IDs.

Deprecated#

Removed#

Fit Functions#

New features#

Bugfixes#

In an Instrument Parameter File, defined fitting parameters no longer erroneously overwrite if they have the same name but for different functions (e.g. Bk2BkExpConvPV:Gamma and IkedaCarpenterPV:Gamma).

Deprecated#

Removed#

Data Objects#

New features#

Bugfixes#

Python#

New features#

Instrument now has getXmlText exposed to python.
MeshObject now has getBoundingBox exposed to python.

Bugfixes#

Dependencies#

New features#

Bugfixes#

MantidWorkbench#

See Mantid Workbench Changes.