Just discovered it via WikiApiary. I guess it will be perfect to also get CH1995 support. :)
Topic on Extension talk:CoordinateConversion/Flow
I had just created a page for it yesterday on WikiApiary, because I was curious if another site is using it as well. Do you mean "CHTRS95", Swiss Terrestrial Reference System 1995 or "CH1903+" (LV95), the updates done during the 1990s to CH1903 (LV03)? I have found the official "Approximate formulas for the transformation between Swiss projection coordinates and WGS84" so I will update the formulas to "CH1903+" soon. The error should less than 1 m.
This is how I got to know about the extension. :)
Actually I used the incorrect reference to the updates in the 90ies.
The Swiss use CH1903/LV03 and CH1903+/LV95. See the box in the bottom left at this example.
Anyhow this is not an error, it is an feature request. Take your time. I appreciate your work here.
See the test page. I'd say the CH1903 accuracy is pretty good. :)
Have you found the special page: https://sandbox.semantic-mediawiki.org/wiki/Spécial:CCTest ?
No, since it was not documented. Thanks for the pointer! Nice overview of use cases and expected results. I guess you got inspiration from the Math extension which is the only one I know of which is providing a similar test page.
Now documented the special page.