[Qgis-developer] Problem with GDAL_translate. REST Services, QGIS

[Lauri Kajan]

Hi Randy,

I'm really sorry and little embarrassed for my previous post.
You sure noticed that I don't have much knowledge in arcgis rest services
and especially in using those with gdal.

In this case that json isn't a vector data. It is actually a description of
a raster service and therefore should be accetable for gdal. This was
totally my mistake.


-Lauri





On Thu, Mar 13, 2014 at 7:28 PM, Alex Mandel <tech_dev at wildintellect.com>wrote:

> I wouldn't get on his case too hard he's following:
> http://hub.qgis.org/wiki/quantum-gis/Arcgis_rest
>
> There's probably some clues in:
>
> http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#/The_ArcGIS_REST_API/02r300000054000000/
>
> I think other workarounds could be to pull the layers in the OpenLayers
> plugin.
>
> Thanks,
> Alex
>
> On 03/13/2014 09:50 AM, Lauri Kajan wrote:
> > Hi Randy,
> >
> > You are requesting json format from arcgisonline. That is a vector format
> > and you are trying to use it as a raster image.
> > Secondly you are trying to translate that into WMS with gdal_translate.
> > Gdal supports WMS-reading only, not creation (
> > http://gdal.org/formats_list.html).
> >
> > I recommend for you some introduction to GIS and raster and vector
> formats.
> > http://www.qgis.org/en/docs/gentle_gis_introduction/index.html
> >
> >
> > Regards,
> >
> > Lauri
> >
> >
> >
> >
> > On Thu, Mar 13, 2014 at 4:51 PM, Randal Hale <
> > rjhale at northrivergeographic.com> wrote:
> >
> >> So I figured I would start here and work my way out...or up. Sorry for
> the
> >> cross posting. I'm hitting a little bit of everything on this one. Same
> >> action - different results (sorta). This is all of my attempts at
> adding a
> >> REST Service from ArcGISOnline to QGIS (using GDAL in some cases).
> >>
> >> On Ubuntu 12.04 LTS gdal 1.10
> >> This command: gdal_translate "http://server.arcgisonline.
> >> com/ArcGIS/rest/services/USA_Topo_Maps/MapServer?f=json&pretty=true"
> >> ESRITopographicLayer.xml -of WMS
> >> Gives me a segmentation fault
> >>
> >> On windows 7 OSGEO4w 32 bit installer gdal 1.10.1
> >> This command: gdal_translate "http://server.arcgisonline.
> >> com/ArcGIS/rest/services/USA_Topo_Maps/MapServer?f=json&pretty=true"
> >> ESRITopographicLayer.xml -of WMS
> >> Gives me:
> >> ERROR 4: `/vsimem/http_1/file.dat' not recognised as a supported file
> >> format.
> >> ERROR 4: `/tmp/file.dat' not recognised as a supported file format.
> >> GDALOpen failed - 4
> >>
> >> In QGIS 2.2  On windows (OSGEo4W installer) python console:
> >> qgis.utils.iface.addRasterLayer("http://server.
> >> arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/
> >> MapServer?f=json&pretty=true","raster")
> >> Gives me an error saying /tmp/file.dat is not a recognized format.
> >>
> >> On Ubuntu 12.04 QGIS 2.2 Python Console
> >> qgis.utils.iface.addRasterLayer("http://server.
> >> arcgisonline.com/ArcGIS/rest/services/USA_Topo_Maps/
> >> MapServer?f=json&pretty=true","raster")
> >> Crashes QGIS.
> >>
> >> Once again my apologies for cross posting. I *think* it's all related. I
> >> think.
> >>
> >> Randy
> >>
> >> --
> >> -----------------
> >> Randal Hale, GISP
> >> North River Geographic Systems, Inc
> >> http://www.northrivergeographic.com
> >> 423.653.3611 rjhale at northrivergeographic.com
> >> twitter:rjhale
> >> http://about.me/rjhale
> >>
>
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