[postgis-devel] [PostGIS] #231: New distance-calculations proposal

[PostGIS]

#231: New distance-calculations proposal
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  Reporter:  nicklas      |       Owner:  robe         
      Type:  enhancement  |      Status:  assigned     
  Priority:  medium       |   Milestone:  postgis 1.5.0
 Component:  postgis      |     Version:               
Resolution:               |    Keywords:               
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Comment (by nicklas):

 ok, but what about the start or the end of st_shortestline. I guess the
 end of the line is the most common to use to answer the question where is
 the closest land to swim to from this island.

 But the next question is: from where on the island should I start to get
 the shortest swim-distance. or maybe a more common use. get the points on
 the road closest to the inaccurate GPS-points. Then it is most convinient
 with the startpoint of the shortestline again.
 st_startpoint(st_shortestline(the_road, the_GPS_point))

 I have noticed some posts on the list with this type of problems. But I
 don't know wich approach is most intuitive.

 I don't even see the alternatives clear :-)

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/231#comment:29>
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