Feature request #16478

Concave polygon: `max length of segment` option missing

Added by Paolo Cavallini almost 7 years ago. Updated about 6 years ago.

Pull Request or Patch supplied:No Resolution:
Easy fix?:No Copied to github as #:24387


I did not find a concave polygon tool that behaves as I (and I presume many others) expect: to me the parameter to choose is the max length of the segment, whereas the existing tools seem to allow the choice of the proportion of convex polygon covered.
I have tried:
  • QGIS Concave Hull in Processing
  • Concave hull (k-nearest-neighbors) from plugin Concave Hull (this
    works differently, and has the useful option of creating multiple hulls
    based on a field)
    as well as:
  • PostGIS ST_ConcaveHull


#1 Updated by Giovanni Manghi almost 7 years ago

  • Regression? set to No
  • Easy fix? set to No

#2 Updated by Alexander Bruy almost 7 years ago

  • Description updated (diff)

Should it be feature request?

#3 Updated by Giovanni Manghi almost 7 years ago

  • Status changed from Open to Feedback

#4 Updated by Giovanni Manghi almost 7 years ago

  • Tracker changed from Bug report to Feature request
  • Status changed from Feedback to Open

#5 Updated by Paolo Cavallini about 6 years ago

  • Assignee deleted (Victor Olaya)

Still missing in QGIS 3

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