Feature request #15611

Add line_substring linear referencing function to expression engine

Added by Nikolay Lebedev about 6 years ago. Updated over 4 years ago.

Pull Request or Patch supplied:No Resolution:fixed/implemented
Easy fix?:No Copied to github as #:23534


It's cool that we now have line_interpolate_point() function in expression engine. It would be really nice to have a similar function that returns a substring of a linestring (analogue to postgis st_line_substring()).
This should improve line styling and labelling possibilities.

Associated revisions

Revision a4386d61
Added by Nyall Dawson over 4 years ago

[FEATURE] line_substring function

Returns the portion of a line (or curve) geometry which falls
between the specified start and end distances (measured from the
beginning of the line). Z and M values are linearly interpolated
from existing values.

Fixes #15611


#1 Updated by Giovanni Manghi over 5 years ago

  • Easy fix? set to No

#2 Updated by Nyall Dawson over 4 years ago

  • % Done changed from 0 to 100
  • Status changed from Open to Closed

#3 Updated by Giovanni Manghi over 4 years ago

  • Resolution set to fixed/implemented
  • Description updated (diff)

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