ign.fr23/06/2014

ign.fr

THE FRENCH GEOPORTALTHE FRENCH GEOPORTALGI STANDARDS APPROACH

23/06/2014

ign.fr23/06/2014

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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