[Qgis-developer] add postgis raster

[Maurício de Paulo]

I've stumbled into a problem with some raster too. It seems like a gdal bug.
But I could get it to work with the image available at:
http://trac.osgeo.org/gdal/wiki/frmts_wtkraster.html
Looks like gdal is still improving the non-regular raster reading and
performance.
Well.. then I'm going to release a new version with the same lib as
pgmanager to make it easier to merge.
Hum... preview through pgmanager... I didn't think about it. Sounds good.
I'm going to review the code and see what i can do to make it happen.
Best regards,
Mauricio


2010/12/14 Paolo Cavallini <cavallini at faunalia.it>

> Il 13/12/2010 20:03, Maurício de Paulo ha scritto:
> > Are you testing on ubuntu/Debian? I had to install pyqt4's psql driver
> > by hand. I don' t remeber exactly the driver's name. I think it's
> > something like libqt4-psql.
>
> Yes, I'm on Debian.
> In fact:
> Warning: QSqlDatabase: QPSQL driver not loaded
> Installing libqt4-sql-psql does the trick.
> However, I have the server on another machine, and the pg versions do not
> match, so I
> get Warning: This version of PostgreSQL is not supported and may not work.
> And in fact it does not work well: the raster is loaded, but I only get
> NULLs and 0
> instead of true values. Unsure, however, if the raster was loaded correctly
> in the db.
>
> On the machine where I have the db, I get instead (but this coudl be to
> mismatching
> pg versions, as I have both 8.4 and 9.0 istalled):
> Error:
>        GDAL Error 4: `PG: dbname=nove host=localhost user=nove
> password=***** port=5433
> schema=public table=dtm_rt' does not exist in the file system,
> and is not recognised as a supported dataset name.
>
> During startup - There were 16 warnings (use warnings() to see them)
> Segmentation fault
>
> > I've used pyqt4 for table listing. I don't know what's going to be QGIS'
> > default pg library, but it's easily replaced.
>
> I think it would be good not to add further cryptodependencies.
>
> > Integration with PostgisManager? It can be done. But I was thinking
> > about moving the plugin to the Layer menu (as I did with RGB Composition
> > Plugin). IMHO plugins that load data should be with the other data
> > loading interfaces. What do you think would be best for the users?
>
> I think the best would be to integrate with both "Add PostGIS vector" for
> loading and
> with PostGIS manager for previewing and loading.
>
> All the best, and thanks a lot!
> --
> Paolo Cavallini: http://www.faunalia.it/pc
>



-- 
Mauricio de Paulo
Engenheiro Cartografo
MapeandoOBrasil <http://mapeandoobrasil.blogspot.com>
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