[postgis-users] ST_AsJpeg
Paragon Corporation
lr at pcorp.us
Tue Feb 14 12:27:47 PST 2012
We have this documented in the docs.
http://www.postgis.org/documentation/manual-svn/using_raster.xml.html#RT_Ras
ter_Applications
There is an example for doing it with PHP, .NET, Java, and PLPython
Sorry don't have one for psql only. Haven't tried using psql for outputting
files.
Regina
http://www.postgis.us
> -----Original Message-----
> From: postgis-users-bounces at postgis.refractions.net
> [mailto:postgis-users-bounces at postgis.refractions.net] On
> Behalf Of Pierre Racine
> Sent: Tuesday, February 14, 2012 11:05 AM
> To: PostGIS Users Discussion
> Subject: Re: [postgis-users] ST_AsJpeg
>
> So you might have to write a script connecting to PostgreSQL
> and writing the file for you. See an example in:
>
> http://www.bostongis.com/blog/index.php?/archives/175-Minimali
> st-Web-based-PHP-PostGIS-2.0-Spatial-GeometryRaster-Viewer.html
>
> Pierre
>
> > -----Original Message-----
> > From: postgis-users-bounces at postgis.refractions.net
> > [mailto:postgis-users- bounces at postgis.refractions.net] On
> Behalf Of
> > Joan
> > Sent: Tuesday, February 14, 2012 10:10 AM
> > To: PostGIS Users Discussion
> > Subject: Re: [postgis-users] ST_AsJpeg
> >
> > Yes, I want to create a jpeg/tiff file. I am new to
> cursors, how would
> > that work in a query.
> >
> >
> > On 14 February 2012 15:39, Pierre Racine
> <Pierre.Racine at sbf.ulaval.ca> wrote:
> >
> >
> > Thanks,
> >
> > Do you see any way to make the file directly readable
> (without having
> > to edit it)?
> >
> >
> > Pierre
> >
> > > -----Original Message-----
> > > From: postgis-users-bounces at postgis.refractions.net
> > [mailto:postgis-
> > users-
> >
> > > bounces at postgis.refractions.net] On Behalf Of Sandro Santilli
> > > Sent: Tuesday, February 14, 2012 9:28 AM
> > > To: PostGIS Users Discussion
> >
> > > Subject: Re: [postgis-users] ST_AsJpeg
> > >
> > > On Tue, Feb 14, 2012 at 09:22:21AM -0500, Pierre Racine wrote:
> > > > Yes. You want to write the file directly to the filesystem?
> > Sandro wrote
> > > something in the list about this recently but I can't
> find it. Sandro?
> > Robe?
> > > >
> > >
> > > I ended up binary-editing the result afterwards.
> > >
> > > Anyway, first step is declaring a binary cursor,
> redirecting output
> > to a file and
> > > calling the function.
> > >
> > > For the binary editing, I looked at another file with
> my expected
> > format to tell
> > > where it started (human eye pattern matching).
> > >
> > > > You can also use gdal_translate...
> > >
> > > Much better, when it works (it wasn't working for me).
> > >
> > > --strk;
> > >
> > > ,------o-.
> > > | __/ | Delivering high quality PostGIS 2.0 !
> > > | / 2.0 | http://strk.keybit.net
> > > `-o------'
> > >
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