Provide equivalent of COLETTE DISPLAY/SPECIAL plot transformations

[Nick Draper]

see change history

[Nick Draper]

Provide a number of plots of reduced data with altered axes.

Two mockups created in Mockups\SANS Display-plotting.bmml and Display-plotting_general.bmml

On clicking plot we should create the workspace and a suitable plot.

**Reduced** data transformations available in COLETTE (also see attachments) and desired in Mantid are:

    1: Guinier (spheres) - Ln(I)     v     Q**2                       
    2: Guinier (rods)    - Ln(IQ)    v     Q**2                        
    3: Guinier (sheets)  - Ln(IQ**2) v     Q**2                        
    4: Zimm              - 1/I       v     Q**2                       
    5: Kratky            - IQ**2     v        Q                       
    6: Debye-Bueche      - 1/Sqrt(I) v     Q**2                       
    7: Log-Log           - Ln(I)     v    Ln(Q)                        
    8: Porod             - IQ**4     v        Q                        
    9: General           - (Q**A)(I**B) x Ln(Q**C x I**D x E) v (Q**F)(I**G) x Ln(Q**H x I**I x J)
   91: re-uses last 9                     

A background to be subtracted from the data **before** transformation may also be specified (default is 0.0). This can take the form of a constant **or another workspace!**.

Note that Log-Log transformation no.7 is logarithmic numbers on linear axes (as distinct from the usual plotting option in COLETTE or Mantid of linear numbers on logarithmic axes).

These transformations need to be user-selectable and the output needs to be in a workspace that can be plotted, written to file, **and fitted to a straight line over some user-selected range of X with the gradient & intercept +/- errors displayed in the results log**.

The argument to the Fortran get_special function is a COLETTE/GENIE-II workspace number.

[Nick Draper]

adding attachments of how this was done in collete

[Nick Draper]

There another plot type as well

Holtzer           - I.Q        v        Q     

[Nick Draper]

Significant changes made to mockups in the documents\design\mckups\sans directory

The general form should bring vreate text boxes for the user to input the variables.

See also ticket #2197

[Russell Taylor]

(In [9390]) Add algorithm to perform the transformations available with COLETTE DISPLAY/SPECIAL. Re #2156.

[Russell Taylor]

(In [9423]) Prototype layout for SANS plot tab. Re #2156.

[Nick Draper]

Bulk move of tickets at the end of iteration 27

[Russell Taylor]

I'm going to close this now so that the algorithm part can be tested and create a separate ticket for the gui part (for the next iteration). This could be used now in conjunction with native Mantidplot plotting and fitting, but we will provide a 'nicer' way.

[Sofia Antony]

Russell,

I've used LOQ48098.raw reduced workspace to test this and the workspace data after applying this transformations are not correct.Will be sending you a detailed mail.

Thanks, Sofia

[Russell Taylor]

Ticket for the GUI part is #2420.

[Stuart Campbell]

This ticket has been transferred to github issue ​3003