[Qgis-developer] Problem with GDAL_translate. REST Services, QGIS
Eric Goddard
egoddard1010 at gmail.com
Fri Mar 14 17:55:42 PDT 2014
Hi Randal,
I'm not really sure why gdal isn't creating the xml file. It looks
like it is gdal, since using the iface.AddRasterLayer() method
produces the same error message as using gdal_translate from the
command line.
As a work around while that issue is being sorted out, if you download
the gdal ArcGIS server TMS xml definition from
http://www.gdal.org/frmt_wms_arcgis_mapserver_tms.xml and change the
url before the /tile/${z}/${y}/${x} portion, it will load the tiles
when dragged into QGIS. I tested it with several of the raster layers
from http://server.arcgisonline.com/ArcGIS/rest/services/ and they all
worked.
Eric
On Thu, Mar 13, 2014 at 2:40 PM, Randal Hale
<rjhale at northrivergeographic.com> wrote:
> Oh yeah - it was completely working. I haven't tried it since the upgrade to
> 2.2 on Ubuntu. That's why I ran through all the variations:
> windows/linux/etc to make sure it wasn't one thing vs something else. It
> seems ultimately to be a gdal thing since it failed on linux and windows.
> Linux was a bit more extreme with the segmentation fault.
>
> Anyway - I'm hoping it's me - but I don't think so.....
>
>
> 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 03:03 PM, Alex Mandel wrote:
>>
>> 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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