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MaskBinsFromTable v1¶

Summary ¶

Mask bins from a table workspace.

Properties ¶

Name	Direction	Type	Default	Description
InputWorkspace	Input	MatrixWorkspace	Mandatory	Input Workspace to mask bins.
OutputWorkspace	Output	MatrixWorkspace	Mandatory	Output Workspace with bins masked.
MaskingInformation	Input	TableWorkspace	Mandatory	Input TableWorkspace containing parameters, XMin and XMax and either SpectraList or DetectorIDsList

Description ¶

Masks bins in a workspace. The user specified masking parameters, such as spectra, xmin and xmax are given via a TableWorkspace.

It calls algorithm MaskBins underneath. If DetectorIDsList column exists it will convert this list to a list of spectra before calling MaskBins.

The table may have several rows, in which case it calls Maskbins for each row.

Usage ¶

Masking of a small workspace

# Create workspace with 10 bins of width 10
ws = CreateSampleWorkspace(BankPixelWidth=1, Xmax=100, BinWidth=10)

# Create table workspace with masking information in it
mask_info = CreateEmptyTableWorkspace()
mask_info.addColumn("str", "SpectraList")
mask_info.addColumn("double", "XMin")
mask_info.addColumn("double", "XMax")
mask_info.addRow(["", 16.0, 32.0]) # 1st mask: SpectraList=ALL, Xmin=16, XMax=32
mask_info.addRow(["", 71.5, 79.0]) # 2nd mask: SpectraList=ALL, Xmin=71.5, XMax=79


# Mask a range of X-values
wsMasked = MaskBinsFromTable(ws,MaskingInformation=mask_info)

# Show Y values in workspaces
print("Before masking: {}".format(ws.readY(0)))
print("After masking: {}".format(wsMasked.readY(0)))

Output:

Before masking: [ 0.3  0.3  0.3  0.3  0.3 10.3  0.3  0.3  0.3  0.3]
After masking: [ 0.3  0.   0.   0.   0.3 10.3  0.3  0.   0.3  0.3]

Source ¶

C++ header: MaskBinsFromTable.h

C++ source: MaskBinsFromTable.cpp