SANS2D reduction of event mode data

[Gesner Passos]

Make the result of this script compatible

import ISISCommandInterface as ici
run = '19682'
ev, mon = Load(run, LoadMonitors=True)
b = '5.5,45.5,50.0, 50.0,1000.0, 500.0,1500.0, 750.0,99750.0, 255.0,100005.0'
hist = Rebin(ev, b, False)
mon_h = Rebin(mon, b, False)
for i in range(mon_h.getNumberHistograms()):
	hist.setY(i,mon_h.dataY(i))
	hist.setE(i,mon_h.dataE(i))

ici.SANS2D()
ici.MaskFile('/apps/mantid/systemtests/Data/SANS2D/MASKSANS2D.091A')
ici.AssignSample(hist,reload=False)
ici.Gravity(True)
wav1 = 2.0
wav2 = wav1 + 2.0
reduced = ici.WavRangeReduction()
event_reduced = RenameWorkspace(reduced)

current = LoadNexus(run)
ici.SANS2D()
ici.MaskFile('/apps/mantid/systemtests/Data/SANS2D/MASKSANS2D.091A')
ici.AssignSample(current,reload=False)
ici.Gravity(True)
wav1 = 2.0
wav2 = wav1 + 2.0
reduced = ici.WavRangeReduction()
histogram_reduced = RenameWorkspace(reduced)

plot(event_reduced, 0)
plot(histogram_reduced,0)

Currently, there are not compatible, and it seems to be a problem with the logging being different from both workspaces.

[Gesner Passos]

The real problem for not providing the same solution was related to the sample loggings, and it will be addressed in the ticket #7985

[Gesner Passos]

There is a small problem with the event mode data when extracting the date and time because it provides more information.

[Gesner Passos]

DateTime extract for isis_instrument

Avoid the issue of datetime throwing exception when extracting the date and time by truncating the input string.

re #7643

Changeset: f3b95f3cf10ecd704f4a7512d3df10914b0a39aa

[Gesner Passos]

Tester:

[Gesner Passos]

Tester:

execute the script in the description of this ticket. The outputs must be the same or at least, very close to one another.

[Gesner Passos]

The ticket #7890 imposes some changes on the script to be tested.

[Gesner Passos]

The monitors showed wrong sample information.

[Gesner Passos]

The correct script now is:

import ISISCommandInterface as ici
run = '19682'
ev, mon = Load(run, LoadMonitors=True)
b = '5.5,45.5,50.0, 50.0,1000.0, 500.0,1500.0, 750.0,99750.0, 255.0,100005.0'
hist = Rebin(ev, b, False)
mon_h = Rebin(mon, b, False)
mon_name = mon_h.name()
ConjoinWorkspaces(mon_h, hist, True)
hist = RenameWorkspace(mon_name)

ici.SANS2D()
ici.MaskFile('/apps/mantid/systemtests/Data/SANS2D/MASKSANS2D.091A')
ici.AssignSample(hist,reload=False)
ici.Gravity(True)
wav1 = 2.0
wav2 = wav1 + 2.0
reduced = ici.WavRangeReduction()
event_reduced = RenameWorkspace(reduced)

current = LoadNexus(run)
ici.SANS2D()
ici.MaskFile('/apps/mantid/systemtests/Data/SANS2D/MASKSANS2D.091A')
ici.AssignSample(current,reload=False)
ici.Gravity(True)
wav1 = 2.0
wav2 = wav1 + 2.0
reduced = ici.WavRangeReduction()
histogram_reduced = RenameWorkspace(reduced)

plot(event_reduced, 0)
plot(histogram_reduced,0)

The reason, is that now, loading event, does not load the monitors spectra, and as so, can be 'conjoined' to the monitors straight forward.

[Gesner Passos]

I can not put it as fixed today, because it depends on #8064 that is not closed. But, it has been in the develop branch since 01/10/2013.

Tester: just execute the script in comment:12

[Jay Rainey]

Merge remote-tracking branch 'origin/bugfix/7643_sans2d_fixing_reduction'

Full changeset: ​7447741e83f820a726714fcafef459a30be6176b

[Jay Rainey]

ValueError no longer occurs as datetime problem has been addressed. Provided script returns the same results, as expected. Tested on Ubuntu 12.04.

[Martyn Gigg]

Fix loading of Vates libraries to initialize VSI.

The package structure is different to the dev layout so we need to ensure we load the Vates libs from the top level pvplugins and not the actual plugins. Refs #7643

Changeset: bb558062c7dbdaef53daeaa94b44501569f7e383

[Stuart Campbell]

This ticket has been transferred to github issue ​8488