Allow Interaction with Larmor data

[Gesner Passos]

There are a minimal of things that must be introduced to allow SANS ISIS interface to allow interaction with LARMOR data.

This ticket does not intend to support the larmor reduction as a whole, but to allow it to run. It will them allow us to start interaction with the user to check how the reduction is done and if it is acceptable.

[Gesner Passos]

re #8395: creation of Larmor Instrument

This commit introduces the Larmor instrument that is required to allow reducing Larmor data. It was not possible to check with the user the system coordinates that he wants to use and other things.

But, this commit is necessary to allow the user start interacting with the reduction to allow us to address all the particularities of the reduction for LARMOR.

Changeset: fe6617b8c16174c26cf1455d57ada204deb3292b

[Gesner Passos]

Creation of Larmor data for reduction

[Gesner Passos]

re #8395: correct Larmor zero padding

By the files current available inside the archiver. It seems that the user plans to use 8 zero-padding.

Changeset: d9e2ed7a3662485fe273c1ce0bc208ee20336bc4

[Gesner Passos]

re #8395: Correct SaveCanSAS support for LARMOR instrument

Changeset: 8af0b8373e155eeedf6a188cbcd19f996d7f999f

[Gesner Passos]

Tester:

1 - First of all, it is necessary to create some data for LARMOR. I've used the ​create_larmor_data2.py to do so. It uses SANS2D data to populate LARMOR workspace with data, and them, save the data. It finally, creates the sample information directly inside the nexus file. This data is not really a simulation of LARMOR because they will use event mode data. But, it is a start point.

2 - Having the files created. It is possible to 'play' with the reduction. I've added the ​MaskFile used to reduce the original SANS2D data (it requires the direct file as well).

3 - Open ISIS interface

4 - Select LARMOR instrument

5 - Load the MaskFile

6 - Select batch mode

7 - Load the ​batch file

8 - Execute Reduce 1D.

9 - Check the results: larmor_complete_reduction, larmor_sample_can_reduction, larmor_sample_trans_reduction.

10 - Execute Reduce 2D.

11 - Open 73rear_2D_1.75_15.5 as Color Fill Plot

12 - You may try to change some settings inside 'Reduction Settings' Tab - the only one you can not expect sensible result is changing Detector bank combobox. Larmor has just one detector bank, so selecting front, both, merged will make the reduction to fail. It is something I will have to discuss what it is better doing about banks detector and LARMOR instrument. But, does not belong to this ticket.

13 - After changing settings, you may want to try the reduction again.

14 - Moving to Geometry Tab. You will be able to search for the centre. Try it, and check that it works nicely.

15 - You should be able to use the Add runs as well (for example to add runs 73 and 70).

No work for the others tabs was done here in this ticket.

Remember: This ticket is not to provide correct answer for the reduction, but to allow it to be run and not explode. It will them go into the interaction with the user to perform a correct reduction.

[Gesner Passos]

re #8395: creation of Larmor Instrument

This commit introduces the Larmor instrument that is required to allow reducing Larmor data. It was not possible to check with the user the system coordinates that he wants to use and other things.

But, this commit is necessary to allow the user start interacting with the reduction to allow us to address all the particularities of the reduction for LARMOR.

Changeset: 0abe0e457cca1acdefcafb9c8f62d485be221302

[Gesner Passos]

re #8395: correct Larmor zero padding

By the files current available inside the archiver. It seems that the user plans to use 8 zero-padding.

Changeset: c0806787f2ccedfd6d1af9a2a77508bab2dd7a19

[Gesner Passos]

re #8395: Correct SaveCanSAS support for LARMOR instrument

Changeset: 075342c8782a9176f7d39cceca9dfe58106fbd61

[Nick Draper]

File creation script requires h5py, this is not installed by default, and would be much easier to install in a linux pc. Therefore returning to pool.

[Peter Parker]

Merge remote-tracking branch 'origin/feature/8395_larmor_reduction_introduction'

Full changeset: ​404e7be5972be08f24dc04bd4219d9520ef64f83

[Peter Parker]

I thought I came across some errors when running the 1D and 2D reductions for the first time and then trying to search for the centre in the Geometry tab, but I can't seem to reproduce it.

Otherwise, the 15 steps seem to work fine for me.

[Stuart Campbell]

This ticket has been transferred to github issue ​9240