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CentroidPeaksMD v1¶

Warning

CentroidPeaksMD is deprecated. Use CentroidPeaksMD version 2 instead.

Summary ¶

Find the centroid of single-crystal peaks in a MDEventWorkspace, in order to refine their positions.

Properties ¶

Name	Direction	Type	Default	Description
InputWorkspace	Input	MDEventWorkspace	Mandatory	An input MDEventWorkspace.
CoordinatesToUse	Input	string	HKL	Ignored: algorithm uses the InputWorkspace’s coordinates. Allowed values: [‘Q (lab frame)’, ‘Q (sample frame)’, ‘HKL’]
PeakRadius	Input	number	1	Fixed radius around each peak position in which to calculate the centroid.
PeaksWorkspace	Input	PeaksWorkspace	Mandatory	A PeaksWorkspace containing the peaks to centroid.
OutputWorkspace	Output	PeaksWorkspace	Mandatory	The output PeaksWorkspace will be a copy of the input PeaksWorkspace with the peaks’ positions modified by the new found centroids.

This algorithm starts with a PeaksWorkspace containing the expected positions of peaks in reciprocal space. It calculates the centroid of the peak by calculating the average of the coordinates of all events within a given radius of the peak, weighted by the weight (signal) of the event.

The V1 of the algorithm is deprecated and left for compartibility with the scripts, which have the property CoordinatesToUse set. Use CentroidPeaksMD v2 for any new scripts.

Categories: AlgorithmIndex | MDAlgorithms\Peaks | Deprecated