[ckan-dev] problem with spatial previews

Armin Retterath armin.retterath at gmail.com
Wed Aug 12 12:56:22 UTC 2015 

you can see the message in firebug. also the wfs response is there and the
server gives an exception for the epsg:3857. the problem is, that my
installation is in our intranet and not available in the www already (i've
got the same problem as it was on the list today - proxying is not
possible, because ckan don't react on the site_url definition :-( )
i can give you further information tomorrow ;-)
thanx
armin

2015-08-12 12:52 GMT+02:00 Matthew Fullerton <matt.fullerton at gmail.com>:

> My problem so far was that OpenLayers said it couldn't cope with that
> version of the XML standard. Where in the code do you see the demand for
> 3857? There was a similar issue with the WMS code. However, for WFS I would
> have though that it should be less of a problem as the data can be
> transformed.
>
> -Matt
>
> On 12 August 2015 at 11:38, Armin Retterath <armin.retterath at gmail.com>
> wrote:
>
>> hi matt,
>> the wfs may have a problem with the requested crs - the client demands
>> epsg:3857 but most services support only 4326 - maybe we have to alter the
>> default crs in the ini file?
>> best regards,
>> armin
>>
>> 2015-08-12 11:59 GMT+02:00 Matthew Fullerton <matt.fullerton at gmail.com>:
>>
>>> I can confirm that WFS does not work.
>>>
>>> KML, GeoJSON and WMS should all be working:
>>> KML:
>>> https://smartlane.io/dataset/different-geo-visualizations/resource/06df2d49-5920-42e8-b73d-860aeea823a8
>>> GeoJSON works but I recommend you use the GeoJSON view installed with
>>> ckanext_geoview and not the openlayers view.
>>> https://smartlane.io/dataset/different-geo-visualizations/resource/d31fcbfb-6611-48b5-91f4-630553316521
>>> WMS:
>>> https://smartlane.io/dataset/different-geo-visualizations/resource/045d88a8-6a1e-4f41-b23c-fa5efa549d34
>>>
>>> Regarding WMS take a look at the URL on the example page to check you
>>> are putting something sensible in. There is a request to visualize
>>> individual layers (https://github.com/ckan/ckanext-geoview/issues/22)
>>>
>>> And in general, it's worth installing the extension from the latest
>>> master code on GitHub and not from pip.
>>>
>>> Best,
>>> Matt
>>>
>>> On 12 August 2015 at 10:45, Armin Retterath <armin.retterath at gmail.com>
>>> wrote:
>>>
>>>> hi sol,
>>>>
>>>> i solved the issue by activating the view in the frontend - maybe the
>>>> docu is not quiet clear :-( .
>>>> i thought, that the default view will sufficient - but
>>>> ckan.views.default_views setting don't activate the views for the resource
>>>> automatically :-( - i had to activate it in the frontend for each view - is
>>>> this realistic?
>>>> another problem is, that the wms preview don't work as it should do.
>>>> the layers are directly requested with the url of the that is defined in
>>>> the resource. this is not right. first the GetCapabilities request has to
>>>> be done and the GetMap url has to be extracted. with this url the map can
>>>> be invoked correctly. i 've done a adoption for the code two years ago.
>>>> maybe i find it and can give it back to the list.
>>>>
>>>> also simple wfs are not supported - i tested
>>>> http://mapserver.lgb-rlp.de/cgi-bin/erdbeben?&request=GetCapabilities&VERSION=1.1.0&SERVICE=WFS
>>>>
>>>> i also tested kml and geojson preview with follwoning urls:
>>>>
>>>>
>>>> http://www.geoportal.rlp.de/mapbender/php/mod_GetPublishedData.php?wmc_id=13986&outputFormat=geojson
>>>>
>>>> http://www.geoportal.rlp.de/mapbender/php/mod_GetPublishedData.php?wmc_id=13986&outputFormat=kml
>>>>
>>>> but the resource is not shown on the map :-( - maybe s.o. knows the
>>>> problem.
>>>>
>>>> thanx in advance,
>>>> armin
>>>>
>>>> 2015-08-12 4:23 GMT+02:00 李承錱[Sol] <u103133.u103135 at gmail.com>:
>>>>
>>>>> Hi Armin:
>>>>>
>>>>> I'm using CKAN 2.4.0 and ckanext-geoview without any problems.
>>>>>
>>>>> Is there any error in the log file?
>>>>>
>>>>> And, do you specify the correct format name in the resource metadata
>>>>> ("geojson" for geojson resources and "wms" for wms resources)? The format
>>>>> column for resource is required to decide the available views.
>>>>>
>>>>> To get the spatial search, you should still install the
>>>>> ckanext-spatial
>>>>> <http://ckanext-spatial.readthedocs.org/en/latest/install.html>
>>>>> extension and follow the guide
>>>>> <http://ckanext-spatial.readthedocs.org/en/latest/spatial-search.html>
>>>>> to set up it. The ckanext-geoview is only for previewing spatial resources.
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Sol
>>>>>
>>>>> 2015-08-10 23:22 GMT+08:00 Armin Retterath <armin.retterath at gmail.com>
>>>>> :
>>>>>
>>>>>> hi matt,
>>>>>>
>>>>>> thanx for the info.
>>>>>>
>>>>>> i set now set following definitions:
>>>>>>
>>>>>> ckan.plugins = stats geo_view text_view datastore image_view
>>>>>> resource_proxy
>>>>>> ckan.views.default = image_view geo_view
>>>>>> ckan.spatial.srid = 4326
>>>>>> ckanext.geoview.ol_viewer.formats = wms kml geojson
>>>>>>
>>>>>> but nothing happens .-( . before i activated both plugins - also
>>>>>> nothing happens. neither the spatial_metadata nor spatial_query had any
>>>>>> effect on the portal - do i have to do more configuration? maybe activate a
>>>>>> spatial search widget as it was so in 1.8.1b - which i tested some years
>>>>>> ago?
>>>>>>
>>>>>> i need a spatial search widget and options to view wms, geojson and
>>>>>> maybe use wfs.
>>>>>>
>>>>>> - or should i go directly to 2.5a - is there a compatibility list for
>>>>>> the spatial extensions? can they be activated parallel?
>>>>>>
>>>>>> thanx in advance,
>>>>>>
>>>>>> armin
>>>>>>
>>>>>>
>>>>>> 2015-08-10 12:20 GMT+02:00 Matthew Fullerton <matthew at smartlane.de>:
>>>>>>
>>>>>>> Dear Armin,
>>>>>>> Are you using ckanext-geoview or ckanext-spatial?
>>>>>>>
>>>>>>> For the WMS viewer I think you need to specify which file types you
>>>>>>> want to offer previews for, e.g.:
>>>>>>> ckanext.geoview.ol_viewer.formats = wms kml
>>>>>>> https://github.com/ckan/ckanext-geoview#openlayers-viewer
>>>>>>>
>>>>>>> In general, and specifically for the GeoJSON problem, check that the
>>>>>>> file formats are set for the resource. I think it needs to be 'geojson' for
>>>>>>> a GeoJSON file and 'wms' for the WMS resource.
>>>>>>>
>>>>>>> Best,
>>>>>>> Matt
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> *Projekt SMARTLANE*
>>>>>>>
>>>>>>> matthew at smartlane.de <florian at smartlane.de>
>>>>>>> T +49.89.289.28575
>>>>>>> F +49.89.289.22333
>>>>>>> www.smartlane.de
>>>>>>>
>>>>>>> EXIST-Gründungsvorhaben „Tapestry“
>>>>>>> c/o Lehrstuhl für Verkehrstechnik
>>>>>>> Technische Universität München
>>>>>>> Arcisstraße 21
>>>>>>> 80333 München
>>>>>>>
>>>>>>> Gefördert vom Bundesministerium für Wirtschaft und Technologie
>>>>>>> aufgrund eines Beschlusses des Deutschen Bundestages.
>>>>>>>
>>>>>>> ------------------------------
>>>>>>> *Von:* ckan-dev <ckan-dev-bounces at lists.okfn.org> im Auftrag von
>>>>>>> Armin Retterath <armin.retterath at gmail.com>
>>>>>>> *Gesendet:* Freitag, 7. August 2015 12:07
>>>>>>> *An:* CKAN Development Discussions
>>>>>>> *Betreff:* [ckan-dev] problem with spatial previews
>>>>>>>
>>>>>>> hello together,
>>>>>>> i freshly installed ckan 2.4.0 with the spatial extensions on an
>>>>>>> debian 8 environment (including  datastore).
>>>>>>> in the frontend the options for show wms, geojson, ... are not
>>>>>>> displayed :-( .
>>>>>>> it seems to be, that ckan don't find the plugins?
>>>>>>> here are my entries in the development.ini:
>>>>>>>
>>>>>>> ckan.plugins = stats text_view datastore image_view recline_view
>>>>>>> spatial_metadata spatial_query geo_view geojson_view resource_proxy
>>>>>>>
>>>>>>> # Define which views should be created by default
>>>>>>> # (plugins must be loaded in ckan.plugins)
>>>>>>> ckan.views.default_views = ckanext-geoview geojson_view geo_view
>>>>>>> image_view text_view recline_view recline_map_view
>>>>>>>
>>>>>>> thanx in advance
>>>>>>> armin
>>>>>>>
>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>
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