Opensearch-Geo

Adding custom search engines to OpenLayers with OpenSearch-geo oscar.fonts 08/10/10 OpenSearch-geo 2 Geo Search Open? Simple? CSW, CQL, WFS filters, WMS+SLD, LBS, WPS Interoperable? 08/10/10 OpenSearch-geo 3 <= Geo => 08/10/10 OpenSearch-geo 4 Custom Search 1,000s of OpenSearch-based custom search engines 08/10/10 OpenSearch-geo 5 OpenSearch http://www.opensearch.org 1. Discovery 2. Description 3. Request HTTP get 4. Response (format) 08/10/10 OpenSearch-geo 6 OpenSearch 1. Discovery <html> <head> <link rel="search" type="application/opensearchdescription+xml" title="My Custom Search Engine“ href="MySearcherDescription.xml"> [···] 08/10/10 OpenSearch-geo 7 OpenSearch 2. Description <OpenSearchDescription xmlns="..."> [···] <Url type="text/html" template="http://...search? text={searchTerms}"/> [···] 08/10/10 OpenSearch-geo 8 OpenSearch get 3. Request URL Template: http://...search?q={searchTerms} FOSS4G Barcelona_ HTTP GET: http://...search?q=FOSS4G%20Barcelona 08/10/10 OpenSearch-geo 9 OpenSearch 4. Response ns:OpenSearch + ns:Atom HTML JSON RSS Atom 08/10/10 OpenSearch-geo 10 => Geo <= 08/10/10 OpenSearch-geo 11 Geo OpenSearch http://www.opensearch.org/Specifications/OpenSearch/Extensions/Geo/1.0/Draft_1 1. Discovery 2. Description 3. Request HTTP get 4. Response Geo-format 08/10/10 OpenSearch-geo 12 Geo OpenSearch 2. Description xmlns:geo="http://a9.com/-/opensearch/extensions/geo/1.0/ {geo:box?} {geo:lat?}{geo:lon?}{geo:radius?} {geo:polygon?} TXT {geo:locationString?} 08/10/10 OpenSearch-geo 13 Geo OpenSearch get 3. Request URL Template: http://...?bbox={geo:box?} HTTP GET: http://...?bbox=-180,-90,180,90 08/10/10 OpenSearch-geo 14 Geo OpenSearch 4. Response HTML JSON ‘geo’ µF GeoJSON KML RDF/XML RSS Atom (dcLite4G) GeoRSS Simple GML 08/10/10 OpenSearch-geo 15 Implementations Services: • Geocommons • Duetopia (GENESI-DR) • Geonetwork ? Clients: • ? 08/10/10 OpenSearch-geo 16 Implementations 08/10/10 OpenSearch-geo 17 OpenLayers.Control.OpenSearch OpenLayers.Format.OpenSearchDescription - Description document parser OpenLayers.Strategy.OpenSearch OpenLayers.Control.OpenSearch - Automatic. choose best resp. format - Orchestrates (multiple) strategies - Manages search params: - User interface: - SearchTerms (text) - Search form - BBOX (geo) - Text results - Constructs request URL - Fires ‘search’ event OpenLayers.Format.KML OpenLayers.Format.GeoJSON OpenLayers.Format.Atom 08/10/10 OpenSearch-geo 18 Demo http://geoportal.dlsi.uji.es/OpenSearch/client/ 08/10/10 OpenSearch-geo 19 Catalog integration OpenSearch & geoweb in GI-Cat 08/10/10 OpenSearch-geo 20 Catalog integration CatalogConnector see P-046 poster http://geoportal.dlsi.uji.es/catalogConnector/OpenSearchExample.jsp 08/10/10 OpenSearch-geo 21 Done • Generic OpenSearch-geo client. • Many geoweb services wrapped. • Play with catalog-level integration (CSW). TODO • Manage paged results in OpenLayers. • Play with Feature-level searches (WFS?). • Generic OpenSearch-geo client 4 java. 08/10/10 OpenSearch-geo 22 ? http://groups.google.com/group/opensearch http://geoportal.dlsi.uji.es/OpenSearch/ [email protected] 08/10/10 OpenSearch-geo 23.

Opensearch-Geo

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