Odd aspect ratio; how can I help fix it?

[aaaaalbert]

Thanks for providing an open, reusable Metalab floor plan to the world! ❤️

I'm working on a partial Keller map of Rathausstraße 6 (for @FunkFeuer reasons, see here). I wanted to base my work on your floor plan, but then noticed that the aspect ratio is different from the original 1880-ish plan. The dimensions noted in the latter seem consistent across axes.

Indeed, the Metalab Wiki notes for the 2012 version of the Metalab floor plan:

Grundriss 08/2012, Layer "Usage" (not to scale; PNG)

(emphasis mine). I've investigated the file history for the SVG plan: The 2006 and 2009 versions match the 1880 plan; since 2012, the plan is stretched along the vertical axis.

I'm happy to help fixing the issue if this doesn't involve special software (besides Inkscape / LibreOffice / $FLOSS_TYPE_STUFF) or hard deadlines ;-). Any guidance is appreciated!

[reox]

Some time ago, there was a big measurement going on and Simon (?) created a 3D model of the metalab.

The best would be to use these measurements and create a DXF version of the plan (for example by using LibreCAD).
This would be much more reusable and should be easily maintainable.

[aaaaalbert]

Thank you! I'll ask around and track the progress on this issue if that's OK.