[ckan-dev] Antwort: Dataset - Geo-Indexing

Tue Nov 29 15:57:32 UTC 2016

Thank you.

Le 2016-11-29 à 03:27, Florian.Brucker at mb.karlsruhe.de a écrit :
> Dear Stéphane,
>
> as you've noticed there's a difference between showing a dataset's 
> extent on the map and indexing a dataset for spatial search. The 
> latter only supports a limited set of geometries, depending on the 
> search backend that you've configured. The available backends are 
> listed in the documentation [0].
>
> The recommended one ("solr") only supports rectangular bounding boxes. 
> There's one that supports polygons ("solr-spatial-field") but that one 
> doesn't support sorting and relevance.
>
> If you want to keep the recommended backend then you can write a small 
> plugin that implements IPackageController's before_index method [1] 
> and uses it to replace more complicated geometries by their bounding 
> boxes for indexing. That might be a useful feature for ckanext-spatial 
> in general, so I've openend a ticket for it [2].
>
> [0] 
> http://docs.ckan.org/projects/ckanext-spatial/en/latest/spatial-search.html#choosing-a-backend-for-the-spatial-search 
>
> [1] 
> http://docs.ckan.org/en/latest/extensions/plugin-interfaces.html#ckan.plugins.interfaces.IPackageController.before_index 
>
> [2] https://github.com/ckan/ckanext-spatial/issues/165
>
>
> Regards,
> Florian
>
> "ckan-dev" <ckan-dev-bounces at lists.okfn.org> schrieb am 28.11.2016 
> 22:22:09:
>
> > Von: Stéphane Lapointe <lapointes at ogsl.ca>
> > An: ckan-dev at lists.okfn.org,
> > Datum: 28.11.2016 22:22
> > Betreff: [ckan-dev] Dataset - Geo-Indexing
> > Gesendet von: "ckan-dev" <ckan-dev-bounces at lists.okfn.org>
> >
> > Hi everybody,
> >
> > I've installed ckanext-spatial and it seems to work normally. I've 
> added
> > a multi-polygon with a valid GeoJSON geometry. The polygons are shown
> > correctly on the dataset extent map snippet.
> >
> > Here's my multipolygon:
> >
> > { "type": "MultiPolygon",
> >    "coordinates":
> > [
> >
> > [[[-71.16431025206147, 46.80159099584969], [-70.98087128561438,
> > 46.82476836009894], [-70.86205254593057, 46.91705428349867],
> > [-70.53102107593456, 46.97266861070203], [-70.1806569044829,
> > 47.30057210227041], [-70.05280323109368, 47.46278823105293],
> > [-69.64581288489698, 47.7342381334644], [-69.51810655655379,
> > 47.98928477646269], [-69.18479544841857, 48.13920912003533],
> > [-68.20231975220054, 48.61170045887031], [-67.00697836166324,
> > 48.99702307663461], [-67.34933108740644, 49.31912100437187],
> > [-67.620867904937, 49.29188289248183], [-68.01839120018818,
> > 49.25279259945339], [-68.15462799245385, 49.10603707691412],
> > [-68.60356887056696, 48.90632616483653], [-68.88080515510535,
> > 48.82936814100226], [-69.1193528451893, 48.58114718844132],
> > [-69.41739415624676, 48.29063697049798], [-69.70712557923804,
> > 48.14645905833026], [-69.80822022365896, 47.91526230001051],
> > [-69.86726264408318, 47.80240978703067], [-70.1191552473112,
> > 47.65101414970077], [-70.20360826029967, 47.50753045069892],
> > [-70.48260889917076, 47.41937820101683], [-71.16613243027633,
> > 46.85539676131575], [-70.99363318479718, 46.95597162911888],
> > [-71.25221699018242, 46.79887347384029], [-71.26016908399247,
> > 46.77466636245659], [-71.16431025206147, 46.80159099584969]]],
> >
> > [[[-67.00014328445657, 49.02556503902262], [-66.12529945399666,
> > 49.24957154952224], [-65.54383053767582, 49.2536218286559],
> > [-65.3189789415557, 49.25392320108867], [-64.99747940799749,
> > 49.25848490555963], [-64.71514191764777, 49.15346084369082],
> > [-64.40129770204801, 49.01943677179146], [-64.27608813681714,
> > 48.87365433242032], [-64.23448394151643, 48.8093245864214],
> > [-63.03488845347109, 48.84273139604782], [-62.22333676200361,
> > 48.84415677449218], [-61.20129684323877, 48.85234156076476],
> > [-60.00770416685183, 48.84021740350861], [-60.00460473981722,
> > 49.98960900083619], [-61.52953416974119, 50.00912583528992],
> > [-62.38531442024488, 50.01988247126716], [-63.45341666265681,
> > 50.02441372657999], [-64.53747634607366, 50.02870731230186],
> > [-65.57528161805882, 50.01968821255878], [-66.50201441262078,
> > 50.00021233172171], [-66.6395280394006, 49.99940542156465],
> > [-66.85748351341307, 49.98873527506628], [-66.96075027657027,
> > 49.88623454134565], [-67.0977786516932, 49.73821136624365],
> > [-67.04420938351826, 49.37619922417305], [-67.00014328445657,
> > 49.02556503902262]]],
> >
> > [[[-65.66840074661201, 47.86499878400378], [-65.09103172384954,
> > 47.8213180967688], [-64.31053469358865, 48.02443826759919],
> > [-64.65814064943096, 47.54093894766022], [-64.00573417142728,
> > 47.04665065863667], [-63.11714492665051, 46.48614605760862],
> > [-61.37452896810469, 46.37176241268886], [-60.52014598320024,
> > 47.27081509632739], [-61.94476738501777, 48.97254220945631],
> > [-64.16087561977842, 48.82920992226666], [-64.26037342020723,
> > 48.4591014245833], [-65.32216223671617, 48.02132715752415],
> > [-66.0454569891764, 48.02174120246463], [-65.66840074661201,
> > 47.86499878400378]]]
> >
> > ] }
> >
> >
> > When I try to rebuild Solr index, I get the following error:
> >
> > Indexing dataset ERROR [ckanext.spatial.plugin] Solr backend only
> > supports bboxes (Polygons with 5 points), ignoring geometry (...)
> >
> > Is it a problem with the Solr config? (schema.xml)
> >
> >
> > Any advices?
> >
> >
> >
> >
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