[postgis-tickets] [PostGIS] #3564: Interpolate points along a line: add a fixed distance version

[PostGIS]

#3564: Interpolate points along a line: add a fixed distance version
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  Reporter:  pcav         |      Owner:  pramsey
      Type:  enhancement  |     Status:  new
  Priority:  medium       |  Milestone:  PostGIS 2.5.0
 Component:  postgis      |    Version:  2.2.x
Resolution:               |   Keywords:
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Comment (by dbaston):

 What about a function {{{ST_LineInterpolatePoints}}} that is the same as
 {{{ST_LineInterpolatePoint}}}, except that it repeats the proportion as
 many times as possible and returns a MultiPoint.

 So, where {{{ST_LineInterpolatePoint(geom, 0.2)}}} would return a single
 point, {{{ ST_LineInterpolatePoints(geom, 0.2)}}} would return points at
 and 0.2, 0.4, 0.6, 0.8, 1.0.  {{{ST_LineInterpolatePoints(geom, 0.3)}}}
 would return points at 0.3, 0.6, 0.9.

 If a user wants to specify a distance rather than a proportion, it would
 be trivial to do {{{ ST_LineInterpolatePoints(geom, dist /
 ST_Length(geom)) }}}

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3564#comment:8>
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