the French Geoportal
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ign. fr 23/06/2014
description
the French Geoportal. GI Standards Approach. GI Standards Approach in the French Géoportail. XX. The French Géoportail http://www.geoportail.gouv.fr. Online access to public datasets through Standardised geographic service interfaces Citizen oriented - PowerPoint PPT Presentation
Transcript of the French Geoportal
ign.fr23/06/2014
ign.fr
THE FRENCH GEOPORTALTHE FRENCH GEOPORTALGI STANDARDS APPROACH
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GI STANDARDS APPROACH IN THE FRENCH GÉOPORTAIL
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THE FRENCH GÉOPORTAILHTTP://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
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FUNCTIONAL ARCHITECTURE
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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
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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
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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
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VECTOR DATA MAP SERVICE
=> DATABASE IN DISSEMINATION SCHEMA
=> LAYER AGGREGATION TO PROVIDE MULTI-SCALES & MULTI-PRODUCTS THEMES
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PostgreSQL500 Gb of data
10 x 2 core server
Nginx
WMS 1.3.0 Service WFS 2.0.0 Service
HTTP Server / Load Balancer
DataBase Server (SFSQL compliant)
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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)
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50 Tbytes of images
Nginx
WMS 1.3.0 Service WMTS 1.0.0 Service
HTTP Server / Load Balancer
File System
8x2 & 8x4 core server
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CO-VISUALISATION
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OGC CSW ISO AP
GetRecords(cache)
GetRecordById(fileIdentifier)
GéoportailCo-Visualisation
<fileIdentifier>
Géocatalogue
Service Providers
OGC WMS
GetCapabilities
GetMap
ISO 19115/19119
Service Metadata
Dataset Metadata
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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
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RESULTS & PERSPECTIVES
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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
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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,…)
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