[ckan-dev] problem with spatial previews

Wed Aug 12 10:38:09 UTC 2015

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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