IR spectrum window: incorrectly formatted x-axis label

[stanpapa]

Avogadro version:

• Avogadrolibs: 1.100.0
• Qt: 6.8.1

Desktop version:

• OS: NixOS
• Version 25.05

ORCA version:
6

Describe the bug
The x-axis label in the IR spectrum is incorrectly formatted, namely the HTML for the superscript is still showing. It is displayed as

Wavenumber (cm<sup>-1</sup>)

To Reproduce
Steps to reproduce the behavior:

1. Load ORCA output file containing IR spectrum
2. Click on Analysis > Import Spectra

Expected behavior
HTML should be processed, so the label is displayed as "Wavenumber (cm^-1)"

Screenshots

Additional context
ORCA input to reproduce

! def2-SVP AnFreq

! bohrs
* xyz 0 1
 O          -1.396288    -0.075107     0.052125
 O           1.396289    -0.016261    -0.089970
 H          -1.775703     1.309756    -1.111179
 H           1.775687     0.140443     1.711854
*

Relevant section of the output:

-----------
IR SPECTRUM
-----------

 Mode   freq       eps      Int      T**2         TX        TY        TZ
       cm**-1   L/(mol*cm) km/mol    a.u.
----------------------------------------------------------------------------
  6:    757.14   0.048289  244.03  0.019903  (-0.000027  0.130305  0.054068)
  7:    886.14   0.002170   10.97  0.000764  (-0.000002  0.025533  0.010595)
  8:   1493.20   0.021753  109.93  0.004546  ( 0.067259  0.001804 -0.004374)
  9:   1641.32   0.000006    0.03  0.000001  (-0.000011 -0.000972 -0.000405)
 10:   3747.36   0.030530  154.29  0.002542  (-0.021942  0.017169 -0.042026)
 11:   3751.13   0.005737   28.99  0.000477  (-0.000187  0.020368  0.007897)

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[ghutchis]

How did you install Avogadro? From a package? From source? I'd be curious to know what version of VTK is being used, thanks.

[stanpapa]

I downloaded and used the AppImage from the GitHub releases page.

[ghutchis]

I went through the code, because I was pretty sure I did all of that with Unicode. What is your language / localization?

e.g.,
xTitle = tr("Wavenumbers (cm⁻¹)");

[stanpapa]

These are my locale settings (taken from /etc/locale.conf)

LANG=en_GB.UTF-8
LC_ADDRESS=nl_NL.UTF-8
LC_IDENTIFICATION=nl_NL.UTF-8
LC_MEASUREMENT=nl_NL.UTF-8
LC_MONETARY=nl_NL.UTF-8
LC_NAME=nl_NL.UTF-8
LC_NUMERIC=nl_NL.UTF-8
LC_PAPER=nl_NL.UTF-8
LC_TELEPHONE=nl_NL.UTF-8
LC_TIME=nl_NL.UTF-8

Not sure if this might be relevant, but I use the following fonts:

defaultFonts = {
  serif = [ "Noto Serif" "Noto Color Emoji" ];
  sansSerif = [ "Inter" "Noto Color Emoji" ];
  monospace = [ "JetBrains Mono" "Noto Color Emoji" ];
  emoji = [ "Noto Color Emoji" ];
};

[ghutchis]

I'm really really confused. That string is not in the app or translations / localizations anymore. It should be using Unicode as I indicated above.

I'll check and make sure the builds are using the latest localizations...

[matterhorn103]

I can confirm that the stable Flatpak (1.100) does the same when I use my system language i.e. en-gb. With en-us though the superscript is only 1 rather than -1.

I'll also note that, like @stanpapa, my default sans-serif is Inter. The font used for the axis labels is not Inter though, in either localization.

Clearly there's also a translation error as well since "Operations" should be "Options", I'll fix that if I remember.

[ghutchis]

Yes, for some reason some of the fonts (via VTK) don't seem to have the superscript - symbol. Not quite sure what to do for that.

Personally? I'd love to find a better chart library, but in any case, this seems to mostly be that the translations aren't up-to-date in the build.

[matterhorn103]

The translations of "Options", the x-axis label, the y-axis label, and the menu entry were all fixed by @andibing 7 months ago according to Weblate.

So there's clearly something funky happened with the translations. It's not just in the AppImage either, they're wrong in the Flatpak too.