ChangeQConvention v1¶

Summary¶

Change the convention of MD workspace.

Properties¶

Description¶

This algorithm changes the sign of Q and the label of the workspace convention. This should only be used on MD workspaces that contain only Q or HKL dimensions. If there are other dimensions, user should still run this algorithm (so that the convention flag is changed), but then run TransformMD with -1 for the non-Q dimensions.

Usage¶

Example - an example of running ChangeQConvention with PointGroup option.

mdws = LoadMD('MAPS_MDEW.nxs')
dim = mdws.getXDimension()
print "X range of Q ",dim.getX(0),dim.getX(1)
ChangeQConvention(mdws)
mdws = mtd['mdws']
dim = mdws.getXDimension()
print "X range of Q after ChangeQConvention ",dim.getX(0),dim.getX(1)

Output:

X range of Q  0.0 10.0
X range of Q after ChangeQConvention  -10.0 0.0

Categories: Algorithms | MDAlgorithms\DataHandling

Source¶

C++ source: ChangeQConvention.cpp

C++ header: ChangeQConvention.h