[mapserver-users] problem serving postgis raster as WMS

Stephen Woodbridge woodbri at swoodbridge.com
Sat Jun 3 18:25:37 PDT 2017


Brent,

Does this help:
https://postgis.net/docs/RT_FAQ.html#idm27746

What version of gdal do you have installed. You might need the mode=2 
argument on the DATA statement.

-Steve W

On 6/3/2017 5:40 PM, Brent Wood wrote:
> 
> Hi,
> 
> I'm looking to (eventually) manage several hundred raster layers in Postgis.
> 
> I have prototyped a single layer using a worldclim file, and can open 
> the Postgis raster table in QGIS (using db manager) and display it as 
> expected with pseudocolour. It is a single band layer, with pixel values 
> in the -36 to 30 range (avg temperatures).
> 
> I have set up a mapfile to serve this as a WMS. I can connect to the 
> service with QGIS, see the layer listed and add it to the canvas. The 
> legend shows the three colours I have set as classes for the layer, but 
> the layer does not appear on the canvas (or if it does it is invisible).
> 
> The mapserver log suggests (to me anyway) that it is working OK.
> 
> I have added a global land shapefile, also served as WMS to the same 
> mapfile to give some context, which opens and displays OK as a WMS layer 
> in QGIS.
> 
> The mapfile, along with the mapserver log entry, are at 
> https://pastebin.com/2jjGFYaW
> 
> If anyone can help me sort out why I'm not seeing any data in QGIS from 
> the Postgis raster WMS layer, I'd appreciate it!
> 
> 
> Thanks
> 
> Brent Wood
> 
> Programme leader: Environmental Information Delivery
> NIWA
> DDI:  +64 (4) 3860529
> 
> 
> Brent Wood
> Principal Technician - GIS and Spatial Data Management
> Programme Leader - Environmental Information Delivery
> 
> +64-4-386-0529| 301 Evans Bay Parade, Greta Point, Wellington| 
> www.niwa.co.nz <http://www.niwa.co.nz>
> 
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> 
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> 
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