I'm not aware of such library. But it's quite easy to write some code to do this. E.g, for points, something like this:
Define a structure myPt={featid, x, y, x0, y0} where (x0,y0) is your point of reference.
- execute the spatial query and save the points into myPt items.
- sort the list of myPts by distance between (x,y) and (x0,y0).
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]] On Behalf Of bebeto
Sent: Tuesday, March 10, 2009 5:23 AM
To:
[hidden email]
Subject: RE: [fdo-users] FDO spatial query
And any idea for some library which can do such postprocessing? Have checked
JTS suite but does not support curvestrings :(
Dan Stoica wrote:
>
> The short answer is: no, you cannot solve the problem without post
> processing the points.
>
> -----Original Message-----
> From:
[hidden email]
> [mailto:
[hidden email]] On Behalf Of bebeto
> Sent: Monday, March 09, 2009 1:00 PM
> To:
[hidden email]
> Subject: [fdo-users] FDO spatial query
>
>
> hi, I need to create FDO query to return set of points in specific order.
> To explain problem easiest way - imagine you have predefined route (line)
> and want to return list gas stations (points) along that route with
> nearest
> first.
>
> Only solution I was able to create was FDO_SELECT command with
> SpatialOperations.SpatialOperations_Intersects filter
> (usually they are in some short distance to this line, but make it
> simplier
> and assume points are exactly on line)
> collection of points returned was ok, but in random order.
>
> Any ideas (even with different technology like FDO) how to solve this are
> welcome. My goal is to manage geometry only with using some library and do
> not write complex algorithms dealing with different geom. types like
> linestring curvestring etc.
> --
> View this message in context:
>
http://n2.nabble.com/FDO-spatial-query-tp2450209p2450209.html> Sent from the FDO Users mailing list archive at Nabble.com.
>
> _______________________________________________
> fdo-users mailing list
>
[hidden email]
>
http://lists.osgeo.org/mailman/listinfo/fdo-users> _______________________________________________
> fdo-users mailing list
>
[hidden email]
>
http://lists.osgeo.org/mailman/listinfo/fdo-users>
>
--
View this message in context:
http://n2.nabble.com/FDO-spatial-query-tp2450209p2454115.htmlSent from the FDO Users mailing list archive at Nabble.com.
_______________________________________________
fdo-users mailing list
[hidden email]
http://lists.osgeo.org/mailman/listinfo/fdo-users_______________________________________________
fdo-users mailing list
[hidden email]
http://lists.osgeo.org/mailman/listinfo/fdo-users
