In-plane angles between reflections

[Owen Arnold]

Determine the in-plane angles between reflections. Pascal already has a mechanism for doing this. He can send the code as a first-shot at the problem.

[Nick Draper]

Moved to the Backlog after R2.6

[Owen Arnold]

Online tool giving reference results ​http://www.cleanroom.byu.edu/EW_orientation.phtml

[Owen Arnold]

refs #7012. Implement as python module.

ExtendedUnitCell is a wrapper around the UnitCell type. Unit tests have been provided around this first-cut.

Changeset: a219a6e5d96a464a4d39ceba1da438dbf95056c8

[Owen Arnold]

refs #7012. Fix merge conflict.

Changeset: 1142d391617231819f88d59d2afa930755520499

[Owen Arnold]

Tester. Have a look at the unit tests to get some idea how to test this.

Here's a script to run in Mantid:

from CrystalTools.ExtendedUnitCell import *

horizontal1 = [0, 1, 0]
horizontal2 = [0, 0, 1]
reflectionOfInterest =  [1 ,1 ,1]
cell = createFromLatticeParameters(1, 1, 1, 90, 90, 90)
xAngleTensor, yAngleTensor = cell.recAnglesFromReflections(horizontal1, horizontal2, reflectionOfInterest)

print xAngleTensor
print 
print yAngleTensor

Now use the parameters from the cubic table in ​http://www.cleanroom.byu.edu/EW_orientation.phtml to verify the outputs.

[Nick Draper]

tested against the reference implementation.

All fine

[Nick Draper]

re #7012 resolve conflict

Merge remote-tracking branch 'origin/feature/7012_crystal_tools'

Conflicts:

Code/Mantid/scripts/CMakeLists.txt

Changeset: 14557834778b8daa17656d476299d74eb355ced1

[Stuart Campbell]

This ticket has been transferred to github issue ​7858