[postgis-users] ST_Buffer + grid problem
edolinde at gmail.com
Thu Mar 22 12:51:35 PDT 2012
Is there an OpenJump tutorial that shows how I can view rasters and
geometries from postgis? I do an "Add postgis layer" in QGis and clicking
on the layer I can set some SQL in there to filter the data coming
back...but its still extremely slow! So wouldn't mind figuring out
how I can get OpenJump to work :)
On Thu, Mar 22, 2012 at 8:47 PM, Pierre Racine
<Pierre.Racine at sbf.ulaval.ca>wrote:
> Sure! I personally use OpenJump but you can do the same in QGIS if create
> tables. I don't know if you can display queries in QGIS (maybe with Rumble
> but I don<t know the state of this project).
> > -----Original Message-----
> > From: postgis-users-bounces at postgis.refractions.net [mailto:
> > bounces at postgis.refractions.net] On Behalf Of Ed Linde
> > Sent: Thursday, March 22, 2012 3:45 PM
> > To: PostGIS Users Discussion
> > Subject: Re: [postgis-users] ST_Buffer + grid problem
> > Pierre,
> > Once I have this raster + buffer geometry intersected, is there an easy
> way to
> > visualize this? Say in Quantum GIS?
> > Will I be able to see the raster and the buffer together to check
> manually if the
> > intersection looks fine?
> > Cheers,
> > Ed
> > On Thu, Mar 22, 2012 at 6:30 PM, Ed Linde <edolinde at gmail.com> wrote:
> > I am on Fedora 15 x86_64
> > On Thu, Mar 22, 2012 at 6:28 PM, Pierre Racine
> > <Pierre.Racine at sbf.ulaval.ca> wrote:
> > > I can try that ... but I am away from the office now. So
> > have to give it a shot
> > > tomorrow morning! :) Will let you know if that fixes it.
> > should I download
> > > the source and build GDAL 1.9?
> > On which OS are you? You should not have to build it as it
> > been released a while ago.
> > Otherwise you can also replace
> > ST_AsRaster(ST_Extent(way_geom)::geometry, 0.000036,
> > 0.000036)
> > with the proper ST_MakeEmptyRaster() call:
> > http://postgis.refractions.net/documentation/manual-
> > svn/RT_ST_MakeEmptyRaster.html
> > Pierre
> > _______________________________________________
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> > postgis-users at postgis.refractions.net
> postgis-users mailing list
> postgis-users at postgis.refractions.net
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