Postgres Raster image display

[Milo van der Linden]

For performance reason it is advised NOT to store your raster images 
inside the database. This discussion gets opened about once every month. 
There is no functionality available to read raster images from a database.



Ryan Ollerenshaw schreef:
> How can i use a Postgres database to display raster images with
> Mapserver?  There are lots of examples on display features this way
> and using a gdaltindex to create a shapefile but i cant find any that
> talk about using a database to store raster images.  Here is what i am
> currently trying:
>
> LAYER
>   NAME "stereo_simp"
>   TYPE RASTER
>   PROCESSING "SCALE=AUTO" #rescale 16-bit image to 8-bit
>   STATUS on
>   CONNECTION "host=localhost dbname=test user=postgres"
>   CONNECTIONTYPE POSTGIS
>   DATA "location FROM stereo"
>   TILEINDEX "stereo" #the table name
>   TILEITEM "location" #column that contains the path to the image
> END
>
> if i just try and display the image directly it works just fine:
>
> LAYER
>   NAME "stereo_simp"
>   TYPE RASTER
>   PROCESSING "SCALE=AUTO" #rescale 16-bit to 8-bit
>   STATUS on
>   DATA "/hiview/products/data/20070929_000600_14euA_171_16_gdal.tif"
> END
>
> Thank you for your time,
> -Ryan
>
>   


-- 


	

Milo van der Linden
skype: milovanderlinden <skype:milovanderlinden?add>
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milo at 3dsite.nl <mailto:milo at 3dsite.nl>
http://www.3dsite.nl

	  	

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