[QGIS-Developer] Docs: Question about curves

[Tom Chadwin]

Hello all

A question has come up in working on the manual
(https://github.com/qgis/QGIS-Documentation/pull/3392/files#r250391261). Can
someone give us a little authoritative help?

The section on the Identify Features tool and the Identify Result dialog
includes the following:

"in case you click on a curved line using the info tool, QGIS will also
display the radius of that section in the panel result"

What is the underlying functionality here? Is is limited to displaying the
radius of circular strings, or does it give the radius of a segment of any
curved geometry? Or is there a better description of this behaviour? Never
having worked with curves in GIS myself, I'm flying blind.

Thanks in advance

Tom



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