Saturday, August 01, 2009 3:05 AM
To: postgis-users@postgis.refractions.net
Subject: Re: [postgis-users] How to get the nearest point for a given point
from a geometry of multilinestring
Hi kevin
As you suggested, I tried to find the closest points but it did not worked
for me. May be I need more he
Hi kevin
As you suggested, I tried to find the closest points but it did not worked
for me. May be I need more help from you. This is what I tried,
e.g.
select ST_line_locate_point(ST_geomFromText('LINESTRING(0 0, 1 1, 2 2, 3 3,
49 49, 51 51, 100 100)'), ST_GeomFromText('POINT(50 50)'))
What I
Thanks a lot.I will try with this and let you know the result.
Thilani
On Tue, Jul 21, 2009 at 10:43 AM, Kevin Neufeld wrote:
> If I understand you correctly, you could first find the 2-point line segment
> within your multilinestring that is within some tolerable distance to your
> intersection p
If I understand you correctly, you could first find the 2-point line
segment within your multilinestring that is within some tolerable
distance to your intersection point. The endpoints of the linesegment
would be vertices closest to your intersection point.
Here's an old way of extracting th
We used ST_Intersection function to get the cross point when roads are
crossing each other. So with the output of this function we have the
crossing point and now we need to get adjacent points to that crossing
point from the road (where the road is a geometry of
multilinestring).Is there any post
