[ckan-dev] GIS dataset import

Fri Jan 17 21:47:28 UTC 2014

Hi Philippe,

Regarding the CSW harvester, I am currently working to fully integrate 
pycsw into the CKAN model in order to be able to use it directly for 
harvesting.
pycsw is an OGC  reference implementation of CSW and fully supports CSW 
harvesting.
I am very interested to see what is the direction of your work regarding 
that, to avoid duplication of efforts.

Cheers,
Angelos

On 01/17/2014 09:42 PM, Philippe Duchesne wrote:
> Hello Adria,
>
> great to hear that.
> I agree that splitting visualization and harvesting would help maintaining
> the code tree.
> FYI, i'm also working on an improved CSW harvester, to better extract
> online resources and recognize OGC endpoints. Is there any ongoing work in
> that respect?
>
> As for the dashboard feature, this sounds inline with a project i'm working
> on to exchange aggregations of data chunks. Looking forward to how this can
> be integrated.
>
> thank you,
>
> --p.
>
> On Fri, Jan 17, 2014 at 10:01 AM, Adrià Mercader <adria.mercader at okfn.org>wrote:
>
>> Hi Phillippe,
>>
>> This is indeed awesome. We are currently actively working on a big new
>> feature for improving resource views, to allow users to customize them
>> and crate dashboards with them ([1], to go into 2.3), and geo previews
>> is something that has been requested a lot, so the timing is great.
>>
>> I'm keen on moving the geospatial previews to a separate ckanext at
>> some point so it's easier to contribute to and not so tied in to the
>> rest of ckanext-spatial, which is only related conceptually but not in
>> code. This should in no way affect your work!
>>
>>
>> Adrià
>>
>> [1] https://github.com/okfn/ckan/tree/1251-resource-view
>>
>>
>> On 14 January 2014 21:36, Philippe Duchesne <philippe at okfn.be> wrote:
>>> Hello David, Cliff,
>>>
>>> FYI, a fork of ckanext-spatial done for openbelgium.be has support for
>>> WFS,WMS,KML,GML,GeoJSON,ArcGIS and Google Fusion Tables.
>>>
>>> You can have a look at
>> http://portal.openbelgium.be/dataset/geospatial-test
>>> for a demo.
>>>
>>> The code is still in beta stage, but available at
>>> https://github.com/pduchesne/ckanext-spatial/tree/OL3_VIEWER
>>>
>>> best,
>>>
>>> --p.
>>>
>>>
>>> On Tue, Jan 14, 2014 at 5:52 PM, David Read <
>> david.read at hackneyworkshop.com>
>>> wrote:
>>>> Cliff,
>>>>
>>>> CKAN's datastore can store GIS data files like any others. The service
>>>> you then want to provide is the ability to preview them.
>>>>
>>>> data.gov has a previewer that I think should cover KML, and I don't
>>>> think it would be too hard to develop it to show GeoJSON and
>>>> Shapefiles too (since I believe OpenLayers supports these). Perhaps
>>>> OKF people can find a dataset as an example, because I couldn't find a
>>>> KML file with a quick look.
>>>>
>>>> The other way geodata is often provided is via a WMS or WFS server
>>>> (rather than as a downloadable file). CKAN is not ideal for serving
>>>> this data. But data.gov.uk has developed a WMS viewer for CKAN and it
>>>> is easily extended to WFS. I believe OKF has recently done a similar
>>>> tool.
>>>>
>>>> David
>>>>
>>>> On 13 January 2014 18:22, Cliff Ingham <inghamn at bloomington.in.gov>
>> wrote:
>>>>> We're looking at publishing all of the GIS data for our city.  Am I
>>>>> correct in thinking that CKAN is built for this, or is CKAN only for
>> the
>>>>> metadata about our GIS data?
>>>>>
>>>>> Importing GIS data files as datasets has not been going very well.
>>   I'm
>>>>> thinking we're doing it wrong.
>>>>>
>>>>> --
>>>>> Cliff Ingham
>>>>> http://www.ohloh.net/accounts/inghamn
>>>>> -------------------------------------
>>>>> "If debugging is the process of removing software bugs, then
>> programming
>>>>> must be the process of putting them in."
>>>>> -- Edsger Dijkstra
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-- 
Angelos Tzotsos
Remote Sensing Laboratory
National Technical University of Athens
http://users.ntua.gr/tzotsos

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