[Qgis-user] Changing the symbology or rendering for a DEM from an ArcGIS Image service

[Keith Jenkins]

It's sometimes worth looking further up the URL hierarchy.  If you connect to
https://geonb.snb.ca/image/rest/services/Elevation

you'll see a few other layers, including a nice shaded relief of the elevation.

And in the case of New Brunswick, there is another ArcGIS REST service
that has 10m and 50m contour lines (available as an image or as line
features):
https://geonb.snb.ca/arcgis/rest/services/GeoNB_SNB_Contours/MapServer

Keith


On Thu, Mar 27, 2025 at 10:42 AM Bernie Connors via QGIS-User
<qgis-user at lists.osgeo.org> wrote:
>
> Hello,
>
>
>
>                I have added an ArcGIS Image service to my QGIS project.  It represents a DEM for the Province of New Brunswick, Canada.  Here are some of the details from “Layer Properties > Information”:
>
> ________________________________
>
> Name
>
> Elevation/DEM_Raw_MNE_Brut
>
> URL
>
> https://geonb.snb.ca/image/rest/services/Elevation/DEM_Raw_MNE_Brut/ImageServer
>
> Source
>
> crs='EPSG:2953' format='JPGPNG' url='https://geonb.snb.ca/image/rest/services/Elevation/DEM_Raw_MNE_Brut/ImageServer'
>
> Provider
>
> arcgismapserver
>
> allowRasterFunction
>
> true
>
>
>
>                I would like to change the style or rendering of the DEM to contours, Hillshade, etc.  Is this possible?  I am running QGIS version 3.34.4-Prizren on Windows 11, 64-bit.
>
>
>         To restyle a local DEM raster I would go to "Layer Properties > Symbology" and simply change the "Render type" to Hillshade or Contours.  However, the only option available in the "Render type" drop-down list is "Singleband color data".  I am able to restyle this image service in ArcGIS Online and in ArcGIS Pro.
>
>
>
> Thanks,
>
> Bernie.
>
>
> --
> Bernie Connors, P.Eng
> B.Sc Geodesy & Geomatics Engineering
> Fredericton, NB
> bernie.connors at unb.ca
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