Many thanks Pierre,
I can create a 100 x 200 x 1000 raster in about 30 seconds. That's quite a
lot of pixels organized !
For the archives, here's the complete code:
--
CREATE SCHEMA test;
CREATE TABLE test.measure AS
SELECT r as rowy, c as colx, b as band, round(random() * 100)::float as v
FROM
Hi Etienne,
> Still, I can't figure how to load an arbitrary number of bands using your
> snippet. If I remove WHERE band=1 I still get a unique band.
This query will work for many bands and will aggregate all of them in a single
raster:
WITH rows AS (
SELECT band, colx, array_agg(v ORDER BY
(rast)).*
> FROM newraster;
>
> You might have to play a bit with the col and row ordering to get exactly
> what you want.
>
> Pierre
>
> > -Original Message-
> > From: postgis-users [mailto:postgis-users-boun...@lists.osgeo.org] On
> > Behalf Of Etienn
; From: postgis-users [mailto:postgis-users-boun...@lists.osgeo.org] On
> Behalf Of Etienne B. Racine
> Sent: Friday, February 26, 2016 8:34 AM
> To: PostGIS Users Discussion
> Subject: [postgis-users] Create raster from row-col table
>
> Hi list,
>
>
> I have raster data
Hi list,
I have raster data stored in a table row-col format as measure(rowy
integer, colx integer, band integer, value float).
I've tried loading a multidimensional array (row x col x bands) with no
success, however building a 2d array (row x col) works but it seems
contrived, especially once I
