Small tweaks to improve Durvo diagram scaling with high-TDS data

[Benito7349]

Hi there,

I’m a geologist with some programming background, and I’m currently working with water samples from deep wells
(over 1,400 feet deep). These samples have very high TDS concentrations, and I’ve run into scaling issues when
using the Durvo diagram.

🧩 Summary

This pull request introduces a few adjustments to the function used for generating the Durvo diagram.
The main goal is to improve the handling of scaling issues when working with water samples that have very
high TDS concentrations, such as those from deep wells (>1400 ft).

⚙️ Changes

Modified the function to better handle samples with high TDS values.

Improved axis scaling to prevent data overlap.

(Temporary workaround) Exporting to .svg and adjusting elements manually in Inkscape to fix legend overlap.

🐞 Known Issue

The legend still overlaps the diagram in some cases. I haven’t found a robust solution for this yet,
but exporting to .svg and rearranging elements manually in Inkscape works as a workaround.

🙏 Acknowledgments

Many thanks for developing this tool — it’s been extremely helpful in my work.
I hope these small changes can be useful to others facing similar challenges.

[jyangfsu]

Hi, thank you so much for your contribution and for the clear explanation!
These improvements for handling high-TDS samples are very helpful. I appreciate your effort in identifying the scaling issue and proposing a practical workaround.
I’ll review the changes shortly and will keep you updated.
Thanks again for supporting the project!