The French Geoportal : linking discovery and view network services. INSPIRE Conference Krakow

Transcription

1 The French Geoportal : linking discovery and view network services ( BRGM ) D.Richard (IGN) F. Robida

2 Context of the French Geoportal The governance mechanism Transversal organisation based on the Ministry in charge of Environment and Sustainable Development steering committee and two organisations in charge of the project management : ( datasets IGN : Geoportail (view and access ( metadata BRGM : Geocatalogue (search and access First public version in 2006 Inspire philosophy as a founding principle Easy to discover geospatial datasets Easy to view, combine seamless datasets Shareable between different resolutions to allow extensive uses Producers are responsible for referencing their datasets and provide access to their data

3 The link between Catalogue and Visualisation Géoportail Co-Visualisation Géocatalogue Search Metadata about services/datasets chosen Access to WMS service Providers Reference datasets and services

4 Geocatalogue, a catalogue for geospatial datasets and services Geocatalogue = Metadata manager Catalog metadata (by producers) Search metadata (by users) View metadata Provide web service information for geoportals and others applications Geocatalogue = Interoperability ISO 19* and OGC standards Compliant with INSPIRE metadata and INSPIRE discovery services guidelines

5 A search oriented architecture Public web site ( Java ) Public CSW service ( Java ) Index ISO service Provider web site ( application (Java Storage XML ( RDBS ) contents INSPIRE Online Conference Import Metadata creation ISO Harvest CSW ISO AP

6 Metadata management in the Geocatalogue operateson link parentidentifier aggreggate - Onlineresource - ServiceType - Description of the service

7 SEARCH DATASET Metadata used for Geocatalogue interface RESULTS DISPLAY ISO summary ISO ISO linking with //operateson ISO distributioninfo ISO linking with //operateson

8 Linking Metadata and Service Géocatalogue Co-visualisation 1. Geocatalogue Search 2. Post Metadata Ids (service,layer, data) Discovery Service 0.Publish metadata Data Provider Data Provider Data Provider GetRecordById (refined «discover metadata») GetCapabilities (get service metadata) 3. Co-visualisation page (Geoportal API, based on 4. GetMap OpenLayers) (get map) View Service View View Service Service 5. GetFeatureInfo GetCapabilities

9 Implementing rules for co-visualisation Implementing rules Conformity Data Provider Géocatalogue WMS describes Service Metadata exposes references publishing Layers Composed of Data describes describes Layers Metadata references Data Metadata

10 Guide towards Implementing rules (1) Service WMS conformity 1.1 or 1.3 releases GetFeatureInfo Layer ( jpg Standard image formats (png, gif, Compatible Coordinate reference systems ( EPSG:4326 (RGF93G, Data provider web site, download service, logo references Informations on scales and geographic extent

11 Guide towards Implementing rules (2) Standard conformity INSPIRE elements and Metadata ISO standards 2 levels (at least) of metadata Service, Layer, (data : optional) Service Metadata Service URL, Layers Metadata reference, Layer «Scoped Name» Layer Metadata Geographic extents, scales information

12 navigatingwhile

13 datasetsforsearch

14 datasetsselect

15 Then overlay them!

16 Conclusion Material used within IOC TF Templates, examples Assist data (metadata/services) providers First regional node successfully connected in may 2010 Allow service metadata only WMS metadata into ISO easier than datasets metadata into ISO 19115

17 Thank you for your attention!