[postgis-tickets] [PostGIS] #5267: [Enhacement] Extrapolate Linestring rate and distance support

[PostGIS]

#5267: [Enhacement] Extrapolate Linestring rate and distance support
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  Reporter:  latot        |      Owner:  pramsey
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS 3.4.0
 Component:  postgis      |    Version:  3.3.x
Resolution:               |   Keywords:
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Comment (by pramsey):

 I think line extension is a distraction, since the core operation here (in
 cartesian and geographics) is projection. Basically, a function like
 https://postgis.net/docs/ST_Project.html only with two arguments and a
 distance. You could build it yourself easily enough from parts already
 lying around.

 {{{
 ST_Project(ST_StartPoint(line), distance, ST_Azimuth(ST_StartPoint(line),
 ST_EndPoint(line))
 }}}

 There's already functions to get the start/end/nth point of a line, and
 there's already these projection functions (which, conveniently, already
 exist for geometry and geography).
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5267#comment:8>
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