Bug report #20680
Decoration -> Scale Bar should use ellipsoidal measurement rather than planimetric
|Affected QGIS version:||3.5(master)||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||duplicate|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||28500|
Currently, the scale bar always show planimetric distance. It's highly misleading, so I'm marking this ticket as a bug rather than a feature request.
Especially when working in WGS84, if the scale bar is displayed in metres (see also #14185), users may assume the measurement is ellipsoidal, what is not true.