[postgis-devel] Contributing code to PostGIS Raster

Jorge Arévalo jorge.arevalo at deimos-space.com
Wed Mar 23 09:15:03 PDT 2011


2011/3/23 Bborie Park <bkpark at ucdavis.edu>:
> On Wed, Mar 23, 2011 at 8:59 AM, Pierre Racine
> <Pierre.Racine at sbf.ulaval.ca> wrote:
>>>> Was there anything implemented yet? Could Bborie take over? So you could focus on the GDAL driver
>>>(and tickets)?
>>>>
>>>
>>>rt_raster_dump_as_wktpolygons transform a PostGIS Raster in a GDAL
>>>Raster using VRT driver. This is the closest implemented reference for
>>>Bborie right now, I think.
>>>
>>>Anyway, I can work on GDAL PostGIS Raster driver at same time. There
>>>should be no interference.
>>
>> So I guess we can leave this to Bborie. Ok for you Bborie?
>>
>> Just mimic rt_raster_dump_as_wktpolygons to pass the PostGIS Raster to GDAL and return the raster returned by GDAL. Et voila! Then you can implement the wrappers...
>>
>
> Sounds good to me.
>
>>>> What about "FV.05 - Being able to reproject a raster"? I guess the plan was also to pass the raster
>>>to GDAL. Anything implemented?
>>>>
>>>
>>>Not yet, but gdalwarp.cpp may be a good starting point
>>>http://trac.osgeo.org/gdal/browser/trunk/gdal/apps/gdalwarp.cpp
>>
>> There you go Bborie...
>>
>
> Also good.
>
>> ST_Resample (part of FV.06) would also be very useful and be implemented in a very similar way same way as FV.05 if you have time.
>>
>>>> I am planning to work on FV03 in some weeks as there was a nice progress made by David during the
>>>code sprint. FV03 should almost be trivial to implement now and I have people here who need it.
>>>>
>>>
>>>Great! Are you planning to use C implementation? Could you test the
>>>last changes?
>>
>> Yes. I'm finishing reviewing ST_AddBand (#871) and then will test your fix to MapAlgebra. Then I will do, in order, #866, #643, #644, #645. I will then start working on FV.03.
>>
>> Sounds good for everybody?
>>
>
> Sounds good to me.  Should I be providing patches once all the
> functions of a FV is complete or whenever I'm complete with a
> function?
>

Good to me too. I'm with #837 and #851. Then #650, #762 and GDAL
driver. The last task oriented to help gvSIG/QGIS people with their
plugins, and provide writing support (keeping an eye in GSoC too).

Bborie, I personally prefer a patch per FV. Pierre?

Jorge


>> Pierre
>>
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>>
>
> Thanks all,
>
> -bborie
>
> --
> Bborie Park
> Programmer
> Center for Vectorborne Diseases
> UC Davis
> 530-752-8380
> bkpark at ucdavis.edu
>



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