Comment 5 for bug 1701553

On 2017-07-01 13:25 (+0200), su_v wrote:
> The basic problem is that Inkscape's view of scaling is not fully
> compatible with the SVG view of scaling, because Inkscape has a
> parameter called inkscape:document-units which is not present in the
> SVG spec, so therefore the two views will never be transparently
> interchangeable.

That attribute in <namedview /> keeps track of the _display_ units used to represent lengths and coordinates in Inkscape's GUI. Display units used in Inkscape's GUI are independent of and do not affect the document's scale (which is defined by the SVG document's viewport size - 'width', 'height' attributes of the SVG root node denoting a physical size - and the 'viewBox' attribute combined with the 'preserveAspectRatio' attribute - defining the relation between physical size of the viewport and SVG user units).

I'm unsubscribing from this report now - sorry for all the noise.