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ign.fr 23/06/2014
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ign.fr THE FRENCH GEOPORTAL GI STANDARDS APPROACH 23/06/2014
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ign.fr 23/06/2014
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GI STANDARDS APPROACH IN THE FRENCH GÉOPORTAIL 23/06/2014 XX 4/
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THE FRENCH GÉOPORTAIL HTTP://WWW.GEOPORTAIL.GOUV.FR HTTP://WWW.GEOPORTAIL.GOUV.FR ONLINE ACCESS TO PUBLIC DATASETS THROUGH STANDARDISED GEOGRAPHIC SERVICE INTERFACES CITIZEN ORIENTED Show & overlay reference/partners datasets DATASETS Easy and secured access to up-to-date overlayable data layers Data type : topo, geological, relief & buildings, coastal, maritime Multi-scale, multi-product 23/06/20145/17
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FUNCTIONAL ARCHITECTURE 23/06/20146/17
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ROK4 WMTS/WMS SERVICES INITIAL CHALLENGE One data, two services Implement WMTS IGNF SOLUTION : ROK4 Be4 tools to prepare data Rok4 WMTS to serve tiles Rok4 WMS to serve images FOR WMTS/WMS RASTER AND WMTS RASTERED VECTOR 23/06/20147/17
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GEOSERVER WMS/WFS SERVICES INITIAL CHALLENGE Meet INSPIRE performance requirements 20 requests / seconds : 800x600 image (gif/png) TWO ARCHITECTURES Vector data service Efficient portrayal process Raster data service Fast serving of images 23/06/20148/17
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DEEGREE WFS INSPIRE SERVICES INITIAL CHALLENGE Meet INSPIRE data schema DATABASE TO STORE DATA IN SEVERAL TABLES PER THEMATIC A MAPPING FILE TO GENERATE INSPIRE COMPLIANT GML 23/06/20149/17
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VECTOR DATA MAP SERVICE => DATABASE IN DISSEMINATION SCHEMA => LAYER AGGREGATION TO PROVIDE MULTI-SCALES & MULTI- PRODUCTS THEMES 23/06/2014 PostgreSQL 500 Gb of data 10 x 2 core server Nginx WMS 1.3.0 ServiceWFS 2.0.0 Service HTTP Server / Load Balancer DataBase Server (SFSQL compliant) 10/17
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RASTER DATA MAP SERVICE => AD-HOC PYRAMID OF IMAGES, PREPARED FOR WMS => SPECIFIC DIRECTORY STRUCTURE => LARGE SIZE FILE : 4096X4096, INNERLY TILED (256X256) 23/06/2014 50 Tbytes of images Nginx WMS 1.3.0 ServiceWMTS 1.0.0 Service HTTP Server / Load Balancer File System 8x2 & 8x4 core server 11/17
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CO-VISUALISATION 23/06/2014 OGC CSW ISO AP GetRecords (cache) GetRecordById (fileIdentifier) Géoportail Co-Visualisation Géocatalogue Service Providers OGC WMS GetCapabilities GetMap ISO 19115/19119 Service Metadata Dataset Metadata 12/17
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CONCLUSIONS INSPIRE PERFORMANCE REQUIREMENTS ARE MET UPCOMING CHALLENGES : Full WFS implementation Support of INSPIRE schemas Multilingualism INSPIRE approach vs OGC approach 23/06/201413/17
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RESULTS & PERSPECTIVES 23/06/201414/
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RESULTS STANDARDS ARE ESSENTIAL IN THE IMPLEMENTATION OF A SDI, WITH MANY PARTNERS INVOLVED SOME REFINEMENTS NEEDED Performances Full interoperability More pragmatic implementation and best pratices 23/06/201415/17
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PERSPECTIVES GÉOPORTAIL 3 PLANNED EVOLUTIONS Go beyond WMS, in conformance with INSPIRE : WFS, WCS, possibly Transformation Services, … Other ideas Thematic maps using GeoLinking Service Integration of sensor streams using SWE Implementation of OPENLS Route and Navigation Services GEOCATALOGUE 2.5 PLANNED EVOLUTIONS Ful INSPIRE compliance INSPIRE reporting tools Search API (openSearch,…) 23/06/201416/17
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