[postgis-users] Need some help

[strk]

On Thu, Aug 05, 2004 at 11:09:44AM -0600, Zamil Murji wrote:
> I'm open to using pl/pgsql...any sample code to do it with that?

If you give it a try and report your code, I'm open to review it.
Basically you'll need to construct a WKT representation of the
line you need... see postgis manual on how to extract X/Y values
from your points.
--strk;

> 
> Thanks
> Zamil
> 
> -----Original Message-----
> From: postgis-users-bounces at postgis.refractions.net
> [mailto:postgis-users-bounces at postgis.refractions.net]On Behalf Of strk
> Sent: Thursday, August 05, 2004 11:01 AM
> To: PostGIS Users Discussion
> Subject: Re: [postgis-users] Need some help
> 
> 
> On Thu, Aug 05, 2004 at 10:53:06AM -0600, Zamil Murji wrote:
> > Hello list,
> > 
> > I have a column in a table defined as a LINESTRING, the lines display just fine using mapserver. Now I want to create a line that is perpendicular to that line, but I want to do it with SQL. I can get the end point of the line, but I'm at a loss of what to do next. My goal is to create a T with the line that is already stored in the db. What is the quickest way to do something like this.
> > 
> > Thanks in advance,
> > Zamil
> 
> Postgis does not currently support creating geometries with SQL.
> You need pl/pgsql for that. 
> 
> --strk;
> 
> _______________________________________________
> 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