Thanks Keith.
I am well aware of the other image services and map services
available from geonb.snb.ca. I helped publish them. I am more interested
in the capabilities of QGIS to restyle an ArcGIS Image Service.
I did try the ArcGIS Image Service Connector plugin. It worked OK with
QGIS 3.34. I was able to change the symbology in the Layer Properties but
it was a little buggy. Next I upgraded to QGIS 3.42. I was hoping
improvements had been made to the handling of ArcGIS Image Service styling
based on the capabilities of the ArcGIS Image Service Connector plugin.
But no luck, 3.42 and 3.34 both lack the ability to change the symbology of
an ArcGIS image service in the layer properties. Additionally, the ArcGIS
Image Service Connector plugin crashes with version 3.42. But that is not
unexpected - the plugin was last updated in 2019.
It would be preferable to restyle the DEM image service based on the user's
needs instead of relying on a civil servant to publish an image service
with exact parameters for every user's needs. What if a user needs a
different colour ramp, a different sun angle, or a different contour
interval?
I am stuck working with Esri at my day job. But I'm an open source
enthusiast and I want QGIS users to have equal or better access to the
ArcGIS Image services we publish.
Best regards,
Bernie.
Bernie Connors
Fredericton, NB
On Thu, Mar 27, 2025, 6:27 p.m. Keith Jenkins <kgjenk...@gmail.com> wrote:
> 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@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.conn...@unb.ca
> > _______________________________________________
> > QGIS-User mailing list
> > QGIS-User@lists.osgeo.org
> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
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