Provide additional metadata in CanSAS1D output files

[Stephen King]

The flexibility and complexity of SANS data reductions has now reached the point where the metadata output by SaveCanSAS1D needs enhancing to provide Users with the ability to recognise what data is in the file!

The following need adding (CanSAS element names in ""):

Under <SASsample>:

• "thickness" of the sample from the sample SANS run in mm

Under <SASsource>:

• "beam_size" (height & width) in mm; if "beam_shape" is circular only one value needs to be given
• "beam_shape" at the sample (this would be one of the flat plate, cylindrical, and circular descriptors used by SECI)
• "wavelength_min" used in the data reduction in Angstroms
• "wavelength_max" used in the data

Under <SASdetector> for each detector after SDD entry (these are particularly important for SANS2D & LARMOR):

• "offset" - "X" (from log file or nxs file)
• "offset" - "Y" (from log file or nxs file)
• "orientation" - "roll" (from user file)
• "orientation" - "pitch" (from user file)
• "orientation" - "yaw" (from user file)
• "beam centre" - "X" (from user file or GUI)
• "beam centre" - "Y" (from user file or GUI)
• "pixel size" - "X" (from user file or GUI)
• "pixel size" - "Y" (from user file or GUI)

Under <SASprocessnote>:

• include min & max detector radii used in the reduction (from GUI)
• include min & max phi angles used in the reduction (from GUI)

Under <SASnote>:

• include user name string (from nxs/raw file)

[Nick Draper]

Moved to R3.5 at the R3.4 code freeze

[Stuart Campbell]

This ticket has been transferred to github issue ​11795