[ckan-dev] problem with spatial previews

Matthew Fullerton matt.fullerton at gmail.com
Wed Aug 12 09:59:42 UTC 2015


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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