[postgis-users] How do I obtain 2 ids between a pipe segment?

[iheanyi Okeh]

Aaargh,
It is my php code that was messing me up.
It is working now, thanks for the response!


>From: "Obe, Regina     DND\\MIS" <robe.dnd at ci.boston.ma.us>
>Reply-To: PostGIS Users Discussion <postgis-users at postgis.refractions.net>
>To: 'PostGIS Users Discussion' <postgis-users at postgis.refractions.net>
>Subject: RE: [postgis-users] How do I obtain 2 ids between a pipe segment?
>Date: Fri, 2 Apr 2004 11:03:41 -0500
>
>The way your query is written only the manholes with bounding box with 100
>will be considered.  Perhaps that is too small of a bounding box
>
>Have you tried increasing the bounding box.  The fact that your limit 2 is
>there will yield the 2 closest.
>
>SELECT manID as manhole,
>        distance(geom,'POINT(12433.19 2354.126)'::geometry) as distance
>FROM man_hole
>WHERE geom && expand('POINT(12433.19 2354.126)'::geometry,500)
>ORDER BY distance limit 2
>
>-----Original Message-----
>From: iheanyi Okeh [mailto:simflex at hotmail.com]
>Sent: Friday, April 02, 2004 10:56 AM
>To: postgis-users at postgis.refractions.net
>Subject: [postgis-users] How do I obtain 2 ids between a pipe segment?
>
>
>The code, below, performs a radius search for a manhole id but instead of
>returning the closest manhole id, we would like it to return at least 2
>manhole
>ids.
>For instance, if there is a repair that occurs on a pipe segment, and
>the pipe happens to be between 2 manhole ids ( one manhole id on either 
>side
>
>of
>the pipe), we would like to see the 2 manhole ids returned.
>
>Example: KG2354  --------------|---------------- KG2355
>
>Per above example, assume that a repair was done on the center of
>the pipe, and there are 2 manhole ids on either side.One called KG2354 is 
>on
>
>the
>left of the pipe and another called KG2355 is on the right, we would love 
>to
>
>display those 2 manhole ids.
>
>So far, only the closest to the point of repair is returned.
>
>Can you please tell me what I may have overlooked on the code below?
>
>Thanks in advance.
>
>SELECT manID as manhole,
>        distance(geom,'POINT(12433.19 2354.126)'::geometry) as distance
>FROM man_hole
>WHERE geom && expand('POINT(12433.19 2354.126)'::geometry,100)
>ORDER BY distance limit 2
>
>_________________________________________________________________
>Get rid of annoying pop-up ads with the new MSN Toolbar - FREE!
>http://toolbar.msn.com/go/onm00200414ave/direct/01/
>
>_______________________________________________
>postgis-users mailing list
>postgis-users at postgis.refractions.net
>http://postgis.refractions.net/mailman/listinfo/postgis-users
>_______________________________________________
>postgis-users mailing list
>postgis-users at postgis.refractions.net
>http://postgis.refractions.net/mailman/listinfo/postgis-users

_________________________________________________________________
Check out MSN PC Safety & Security to help ensure your PC is protected and 
safe. http://specials.msn.com/msn/security.asp