[postgis-users] [Qgis-developer] Fwd: WKTRaster Plugin 0.1

[Maurício de Paulo]

Ok, after a few minutes of implementation here it is. Now the plugin lists
the tables from the database and shows some of it's metadata. Now I think
it's fully functional. If anyone finds a bug , please tell me.
Best regards,

On Mon, Nov 29, 2010 at 3:50 PM, Maurício de Paulo
<mauricio.dev at gmail.com>wrote:

> Hi Jorge,
> Good news. The plugin wktraster is exactly a tool to connect qgis to
> postgis rasters through GDAL and visualize the data.
> Stefan asked about the processing. This is something the plugin doesn't do.
> I've tested with a friend both qgis (with the plugin) and mapserver loading
> postgis rasters. Both worked fine, and the only requirement is qgis compiled
> against gdal 1.7.
> I'm interested in updating the plugin this week to work as I've planned.
> It's going to speak for itself.
> Best Regards,
> Mauricio
> Ps.: Anyone willing to help and join this effort is always welcome.
>
>
> On Mon, Nov 29, 2010 at 3:45 PM, Jorge Arévalo <
> jorge.arevalo at deimos-space.com> wrote:
>
>> Hi,
>>
>> If you want a GDAL version compiled with PostGIS Raster support on
>> Windows, you may take a look here: http://vbkto.dyndns.org:1280/sdk/
>>
>> Visualizing PostGIS Raster data via GDAL driver is one of my TODO
>> tasks. I don't have too much free time now, but if you're interested
>> on this topic, and you're going to test it, please let me know. There
>> are more people interested on that, and I'm providing support to some
>> of them (not as much support as I'd like, because the time...)
>>
>> Best regards,
>>
>> --
>> Jorge Arévalo
>> Internet & Mobilty Division, DEIMOS
>> jorge.arevalo at deimos-space.com
>> http://mobility.grupodeimos.com/
>> http://gis4free.wordpress.com
>>
>> 2010/11/29 Stefan Keller <sfkeller at gmail.com>:
>> > Ok (I'm cross posting to qgis-developer and postgis-users).
>> >
>> > I'm still not sure if I did express myself clearly:
>> > You say, that under Windows, there's no QGIS compiled against GDAL
>> > 1.7/1.8 with PostGIS Raster support?
>> >
>> > What I finally dream of, is using QGIS to display the results of a SQL
>> > query (either as raster or vector) against at least one raster layer.
>> > This query contains raster constructors (like ST_Intersection) and
>> > operations (like ST_Reclass; see
>> > http://trac.osgeo.org/postgis/wiki/WKTRaster).
>> >
>> > Any suggestions?
>> > -S.
>> >
>> >
>> > 2010/11/29 Maurício de Paulo <... at gmail.com>:
>> >> Hi Stefan,
>> >>
>> >> WKTRaster Plugin just repasses the right information to the GDAL
>> driver.
>> >> It's not a new qgis driver.
>> >> I'm planning on implementing the table listing using pyqt this week. I
>> was a
>> >> little delayed by my master's application.
>> >>
>> >> The idea in the plugin is simply find the QGIS's conections available,
>> list
>> >> the raster tables inside postgis and pass the right arguments to the
>> gdal
>> >> driver.
>> >>
>> >> At the moment I haven't found any gdal 1.7 windows build with QGIS.
>> GDAL 1.7
>> >> introduces wktraster. The driver conects to postgis raster and read it
>> as a
>> >> binary. It's still VERY unstable and gdal version 1.8 seems to be
>> greatly
>> >> improved.
>> >> So what a windows user need to get the plugin to work is a (still not
>> found)
>> >> qgis compiled against gdal 1.7.
>> >> You can compile your's from source if needed.
>> >>
>> >> So, as far as qgis to wktraster, with the plugin qgis reads the
>> wktraster as
>> >> a regular raster. Just for show. If you did some kind of processing and
>> >> populated a new raster table, qgis is going to read that result too.
>> The
>> >> plugin is not intended (at the moment at least) to raster processing
>> inside
>> >> postgis. It just loads the table to the screen.
>> >>
>> >> In the future, with a more stable wktraster probably someone (or me) is
>> >> going to write a set of wktraster's tools as a plugin, but for the
>> moment it
>> >> should be run as sql. I advise postgis manager's to the task.
>> >>
>> >> Best regards,
>> >>
>> >>
>> >> 2010/11/29 Stefan Keller <... at gmail.com>
>> >>>
>> >>> Hi,
>> >>>
>> >>> There are new versions around of "PostGIS Raster"
>> >>> (renamed from formerly known "PostGIS WKT Raster").
>> >>>
>> >>> What's the status of your "WKTRaster Plugin 0.1"?
>> >>> I assume it's rendering the raster values (e.g. from ST_AsBinary) -
>> >>> not the polygons/geomvals (from ST_DumpAsPolygons), right?
>> >>> Is there a chance to get it running on Windows too?
>> >>> Are there other plugins?
>> >>>
>> >>> Yours, S.
>> > _______________________________________________
>> > postgis-users mailing list
>> > postgis-users at postgis.refractions.net
>> > http://postgis.refractions.net/mailman/listinfo/postgis-users
>> >
>>
>
>
>
> --
> Mauricio de Paulo
> Engenheiro Cartografo
>
>


-- 
Mauricio de Paulo
Engenheiro Cartografo
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