McXtrace Filter.comp: Better handling of non-standard inputfiles

[willend]

Free-form text area

Please describe what your PR is adding in terms of features or bugfixes:

• Files with 6 or more columns are “assumed” NIST files with mu in 5th column.
• For non-standard < 6 column files the user must set mu_col to point out column index
• mu_col can also be used for >=6 columns if required
• Consequence-edits for various test-example instruments

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Development OS / boundary conditions

Please describe what OS you developed and tested your additions on, and if any special dependencies are required:

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PR Checklist for contributing to McStas/McXtrace

For a coherent and useful contribution to McStas/McXtrace, please fill in relevant parts of the checklist:

• My contribution includes patches to an existing component file

  • I have used the mcdoc utility and rendered a reasonable documentation page for the component (please attach as screenshot in comments!)
  • I have ensured that basic use of the component is OK (e.g. an instrument using it compiles?)
  • I have used the mctest utility to test one or more instruments making use of the component (please attach mcviewtest report as screenshot in comments)
  • I have used the mccode-clangformat tool to apply the standard McCode component indentation scheme
  • I have used the mcrun --c-lint "linter" and followed advice to remove most / all warnings that are raised

• My contribution includes patches to an existing instrument file

  • I have used the mcdoc utility and rendered a reasonable documentation page for the instrument (please attach as screenshot in comments!)
  • I have used the mctest utility to test the instrument (please attach mcviewtest report as screenshot in comments)
  • I have used the mcrun --c-lint "linter" and followed advice to remove most / all warnings that are raised

• My contribution contains something else

  • Explanation is added in free form text above or below the checklist

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[willend]

[willend]

(Instrument list filtered by those using component Filter )
Copying instruments to: ./mcxtrace-3.99.99_Filter_1e6_Darwin_20260704_1734_54

Compiling instruments [seconds]...
MAXII_711           :   3.01
MAXII_811           :   3.43
MAXIV_Bloch         :   3.52
MAXIV_DanMAX_pxrd1d :   5.99
MAXIV_DanMAX_pxrd2d :   4.15
MAXIV_FemtoMAX      :   3.25
NBI_Lab_TOMO        :   2.05
SOLEIL_ANATOMIX     :   2.83
SOLEIL_PSICHE       :   3.08
Test_Filter         :   1.88
Test_Filter_geom    :   2.04
Test_Absorption     :   2.47

Running tests / getting status...
MAXII_711            :   Display OK (1s)
MAXII_711            :   3.75    [val: 5.09671e-06 / 5.1609e-06 = 99 %]
 - Test 1 plots generated OK
MAXII_811            :   Display OK (1s)
MAXII_811            :   3.55    [val: 225063000.0 / 200000000.0 = 113 %]
 - Test 1 plots generated OK
MAXII_811_2          :   3.15    [val: 217080000000.0 / 225761000000.0 = 96 %]
 - Test 2 plots generated OK
MAXIV_Bloch          :   Display OK (1s)
MAXIV_Bloch          :   1.92    [val: 5.66921e-20 / 5.64942e-20 = 100 %]
 - Test 1 plots generated OK
MAXIV_Bloch_2        :   2.18    [val: 1.62797e-21 / 1.80435e-21 = 90 %]
 - Test 2 plots generated OK
MAXIV_DanMAX_pxrd1d  :   Display OK (7s)
MAXIV_DanMAX_pxrd1d  :  19.40    [val: 0.000785388 / 0.00081782 = 96 %]
 - Test 1 plots generated OK
MAXIV_DanMAX_pxrd2d  :   Display OK (5s)
MAXIV_DanMAX_pxrd2d  :   8.13    [val: 8.15001e-05 / 8.10837e-05 = 101 %]
 - Test 1 plots generated OK
MAXIV_FemtoMAX       :   Display OK (1s)
MAXIV_FemtoMAX       :   1.10    [val: 2.87291e-13 / 2.74995e-13 = 104 %]
 - Test 1 plots generated OK
NBI_Lab_TOMO         :   Display OK (2s)
NBI_Lab_TOMO         :  46.24    [val: 38838900000000.0 / 39000000000000.0 = 100 %]
 - Test 1 plots generated OK
NBI_Lab_TOMO_2       :  48.40    [val: 985999000000.0 / 977305000000.0 = 101 %]
 - Test 2 plots generated OK
SOLEIL_ANATOMIX      :   Display OK (2s)
SOLEIL_ANATOMIX      :  26.22    [val: 1.01513e+18 / 1e+18 = 102 %]
 - Test 1 plots generated OK
SOLEIL_PSICHE        :   Display OK (2s)
SOLEIL_PSICHE        :   5.17    [val: 72078100000000.0 / 76100000000000.0 = 95 %]
 - Test 1 plots generated OK
Test_Filter          :   Display OK (1s)
Test_Filter          :   1.21    [val: 1.31535e-07 / 1.31502e-07 = 100 %]
 - Test 1 plots generated OK
Test_Filter_2        :   1.15    [val: 4.00974e-29 / 4.04921e-29 = 99 %]
 - Test 2 plots generated OK
Test_Filter_3        :   1.40    [val: 1.14786e-08 / 1.14111e-08 = 101 %]
 - Test 3 plots generated OK
Test_Filter_4        :   1.20    [val: 1.05202e-07 / 1.04427e-07 = 101 %]
 - Test 4 plots generated OK
Test_Filter_5        :   1.27    [val: 1.65423e-06 / 1.645e-06 = 101 %]
 - Test 5 plots generated OK
Test_Filter_6        :   1.13    [val: 0.000412585 / 0.000412661 = 100 %]
 - Test 6 plots generated OK
Test_Filter_7        :   1.06    [val: 4.97281e-05 / 4.96145e-05 = 100 %]
 - Test 7 plots generated OK
Test_Filter_geom     :   Display OK (1s)
Test_Filter_geom     :   1.25    [val: 0.760028 / 0.760008 = 100 %]
 - Test 1 plots generated OK
Test_Filter_geom_2   :   1.27    [val: 0.579385 / 0.57936 = 100 %]
 - Test 2 plots generated OK
Test_Filter_geom_3   :   1.26    [val: 0.415404 / 0.415209 = 100 %]
 - Test 3 plots generated OK
Test_Filter_geom_4   :   1.20    [val: 0.759385 / 0.759422 = 100 %]
 - Test 4 plots generated OK
Test_Filter_geom_5   :   1.11    [val: 0.579385 / 0.571845 = 101 %]
 - Test 5 plots generated OK
Test_Filter_geom_6   :   1.14    [val: 0.415404 / 0.40875 = 102 %]
 - Test 6 plots generated OK
Test_Absorption      :   Display OK (1s)
Test_Absorption      :   1.04    [val: 8.23633e-12 / 8.25376e-12 = 100 %]
 - Test 1 plots generated OK
Test_Absorption_2    :   0.97    [val: 8.23633e-12 / 8.24127e-12 = 100 %]
 - Test 2 plots generated OK
Test_Absorption_3    :   2.50    [val: 8.23634e-12 / 8.28866e-12 = 99 %]
 - Test 3 plots generated OK
Test_Absorption_4    :   4.00    [val: 9.33634e-10 / 9.36962e-10 = 100 %]
 - Test 4 plots generated OK
======================================
Overall test result:
SUCCESS

[willend]

@ebknudsen ready for review I believe. https://tmp.mcxtrace.org/Filter/RUN_output.html contains my local test output

[ebknudsen]

So the logic here is:
if the number of columns in the datafile pointed to is >= 6 assume NIST format, be it legacy or not - and use column 5 for attenuation. mu_col overrrides this behaviour
if the number of columns is <6 require that mu_col is set.

code LGTM.

[ebknudsen]

LGTM