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

Alex Mandel tech_dev at wildintellect.com
Thu Mar 13 12:03:56 PDT 2014


Randy,

So it was working at some point? Is it possible the service has changed?

Thanks,
Alex

On 03/13/2014 11:21 AM, Randal Hale wrote:
> No worries at all!
> 
> I just need to figure out why it stopped working.
> 
> 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
> 
> On 03/13/2014 01:55 PM, Lauri Kajan wrote:
>> 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 <mailto: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
>>     <mailto: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/
>>     <http://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/
>>     <http://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 <tel:423.653.3611> rjhale at northrivergeographic.com
>>     <mailto:rjhale at northrivergeographic.com>
>>     >> twitter:rjhale
>>     >> http://about.me/rjhale
>>     >>
>>
>


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