Feature request #4936

Ability to flip or reverse direction of a linestring

Added by Mike Taves over 10 years ago. Updated almost 7 years ago.

Pull Request or Patch supplied:No Resolution:duplicate
Easy fix?:No Copied to github as #:14735


As of QGIS 1.7.3, there doesn't appear to be any way to reverse the direction of a linestring (or linear ring).


LINESTRING (140 350, 220 340, 230 370, 280 370, 280 300, 210 260)


LINESTRING (210 260, 280 300, 280 370, 230 370, 220 340, 140 350)

It would be beneficial to have a Flip1 or Reverse2 button in the "Advanced Digitizing" toolbar.

[1] Term used in Esri's ArcDesktop, see http://webhelp.esri.com/ArcGISDesktop/9.3/index.cfm?TopicName=Flipping_lines
[2] Term used by both JTS and GEOS, see http://geos.refractions.net/ro/doxygen_docs/html/classgeos_1_1geom_1_1LineString.html#a31


#1 Updated by Nathan Woodrow over 10 years ago

I wrote a small plugin to do this a while ago, can be found in the Plugin Installer searching for "Swap". I plan on adding this function to the core QGIS code at some stage but no ETA at the moment.

#2 Updated by Giovanni Manghi over 10 years ago

  • Target version set to Version 2.0.0

#3 Updated by Pirmin Kalberer almost 10 years ago

  • Target version changed from Version 2.0.0 to Future Release - Nice to have

#4 Updated by Nyall Dawson almost 7 years ago

  • Resolution set to duplicate
  • Status changed from Open to Closed

Duplicate of #2701

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