Thanks, I tried this function, but it returns all points and I need only that are inside a segment between two points.
ie: MULTILINESTRING((0 0,1 1,1 2,2 3,3 2,5 4)) POINT(1 1) POINT(3 2) I want LINESTRING(1 1,1 2,2 3,3 2) Il 10/09/10 19.48, Paragon Corporation ha scritto:
Marco, Yes. If you are using PostGIS 1.5 or above you can use ST_DumpPoints to dump the points out which is a bit faster than ST_PointN (or you can use ST_Point) http://www.postgis.org/documentation/manual-svn/ST_DumpPoints.html For lower versions you can use ST_PointN http://www.postgis.org/documentation/manual-svn/ST_PointN.html Leo and Regina http://www.postgis.us -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Marco Sent: Friday, September 10, 2010 1:15 PM To: [email protected] Subject: [postgis-users] get segment of multiline between two points Hi, as the subject I've two points on a layer multiline and I need all the points included in that segment to draw on the client side. is this possible? thanks _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
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