SNSPowderReduction also reduces removed low resolution TOF data

[Wenduo Zhou]

Current SNSPowderReduction removes and discards the low resolution TOF data.

The instrument scientists of POGEN requires to save the removed low resolution TOF data in an extra workspace, align and focus it similar to the high resolution TOF data.

Conjoin the low resolution workspace to OutputWorkspace as an additional spectrum with spectrum ID shifted by an offset specified by user.

[Wenduo Zhou]

Checkpointing work. Refs #7336.

Expanded AlignAndFocusPowder to reduce low resolution data in addition.

Changeset: 10debb9e2e8ed0d55005d876aa63f7d6546b2c5c

[Wenduo Zhou]

Make SNSPowderReduction to support low resolution TOF. Refs #7336.

Changeset: 0d8b6d62a606ca5d28d921ec917eb0fc903d00db

[Wenduo Zhou]

Checkpointing work. Refs #7336.

Changeset: ec591236444bf8dbfdafccd9833eadfd281a1e5c

[Wenduo Zhou]

Checkpointing work. Refs #7336.

1. Conjoin the low resolution TOF workspace to output workspace;
2. Enable to use offset on spectrum number of the spectra from low

resolution TOF workspace;

3. Refactor codes

Changeset: 824bf42cb4385732ef0994a751a00771301f998b

[Wenduo Zhou]

Modified SNSPowderReduction for low resolution. Refs #7336.

Changeset: 95afa427bb70db97a32e975237e470d0d81736e0

[Wenduo Zhou]

Intended to catch a segmentation fault. Refs #7336.

Changeset: dcfb99677f4e06b109fc79415cbd76f920149158

[Wenduo Zhou]

Added check on some input vectors size. Refs #7336.

Changeset: 518e245e3cddec58deaf0a132ff7bcc8e32d41a3

[Wenduo Zhou]

Fixed an error. Refs #7336.

Changeset: 03f1f26b4e4fd167e67b6b06cac757aa5e7962ce

[Wenduo Zhou]

Fixed the gold file for system test. Refs #7336.

Changeset: 92ed568ec2d180ec8f03d9d0bbae0c80ac7a44f7

Attached compare01.png and compare02.png show the difference between the previous golden file and the new one.

[Wenduo Zhou]

Checkpointing work. Refs #7336.

Changeset: 656452765b035732b1ae9f5c5698749a4280b388

[Wenduo Zhou]

Fixed the system test and a memory leak. Refs #7336.

Changeset: 51e9bff4e3524cbfc28c06b83ff4e1d95de0d905

[Wenduo Zhou]

Add an information output. Refs #7336.

Changeset: c03f95a8ae201873ffd926c005aa794d26893db8

[Wenduo Zhou]

Cleaned the code. Refs #7336.

Changeset: d44b1bf6a54556d8c44fd1370a028452f614d7ab

[Wenduo Zhou]

Instruction for verifying

1. Download test script (ticket7336a.py) and locate all the files required by it;

2. Run the script and you will get a reduced workspace with 1 spectrum;

3. Set the value of LowResSpectrumOffset to a positive value such as 2;

4. Run the script again. Then you can get a reduced workspace with 2 spectra. Spectrum number 1 is just same as the one obtained in step 2. And spectrum number 4 (if you set offset to 2) is the low resolution diffraction pattern.

5. Download test script (ticket7336b.py) and locate all the files required by it;

6. Run the script and you will get a reduced workspace with 2 spectrum;

7. 'Show detectors' to check the detectors are of the same values specified in the characterization file.

[Peter Peterson]

This works as expected except for one significant detail: the spectrum offset is not used in an expected way. On a random POWGEN data (13428) focused to a single spectrum (common) I used an offset of "7" and got output spectra of "1" and "9". It should be "1" and "8". Simlarly, setting the offset to "1" gives "1" and "3" as the output spectra. It appears that there is an extra "+1" in the code.

I also created #7470 as a related task.

[Wenduo Zhou]

Fixed the reported issue. Refs #7336.

Changeset: 1ad0b0d5f858f8bc0bf0cb642289545c496dcade

[Stuart Campbell]

This ticket has been transferred to github issue ​8182