[ckan-dev] Important update on geospatial view plugins

Wed Jun 17 17:13:36 UTC 2015

Is there a demo of the new geo_view in use?  I have installed it on our development server and I am not seeing any previews.  Also, when I try to see previews on the demo.ckan.org, I am not getting any wms preview (see http://demo.ckan.org/dataset/fema-national-flood-hazard-layer/resource/983c8301-d451-49e7-9fdb-6de04139cf71 for example).

I am just starting to try to debug / fix but I wanted to see a functional example before getting too deep into it.

Andrew Koebrick

From: ckan-dev [mailto:ckan-dev-bounces at lists.okfn.org] On Behalf Of Philippe Duchesne
Sent: Friday, May 08, 2015 4:19 AM
To: CKAN Development Discussions
Cc: ckan-global-user-group at googlegroups.com
Subject: Re: [ckan-dev] Important update on geospatial view plugins

and a big thank to you Adria for packaging, testing and enhancing my experimental code.

I see it has raised quite some interest already, and I'll spend some time soon looking at the first issues.

best regards,

--p.

On Thu, May 7, 2015 at 7:01 PM, Adrià Mercader <adria.mercader at okfn.org<mailto:adria.mercader at okfn.org>> wrote:
Hi everybody,

tl; dr:
* Geospatial views now live in https://github.com/ckan/ckanext-geoview
* New OpenLayers based viewer with support form many formats
* If you are using the GeoJSON view plugin you'll need to update your instance

One of the common complaints from users when enabling spatial features
was that for just enabling the GeoJSON view plugin you had to install
ckanext-spatial. Even when simplified to not needing to install
PostGIS, it still was a bit of a faff.

We've decided to consolidate all geospatial views in ckanext-geoview.
This includes the existing Leaflet based GeoJSON view plugin [1] (see
below if you are currently using it) and also a new OpenLayers based
viewer [2]. This has been developed on top of the great work that
Philippe Duchesne started a while ago, and allows viewing resources of
type WMS, WFS, KML, GML among others.

There is still some work to be done, so if you have experience with
OpenLayers and Leaflet have a look at the open issues or add new ones!
[3]

Current users of the `geojson_view` (or `geojson_preview`) plugin will
need to install the new extension and update the source of
ckanext-spatial. This essentially boils down to running the following
in your virtualenv folder (with the virtualenv activated):

pip install ckanext-geoview
cd ckanext-spatial
git pull
python setup.py develop

The ckanext-spatial Troubleshooting section [4] has been updated with
potential issues that could be found during the update.

Let me know if you find any problem.

Thanks,

Adrià

[1] https://github.com/ckan/ckanext-geoview#leaflet-geojson-viewer
[2] https://github.com/ckan/ckanext-geoview#openlayers-viewer
[3] https://github.com/ckan/ckanext-geoview/issues
[4] https://github.com/ckan/ckanext-spatial/blob/master/doc/install.rst#troubleshooting
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