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QGIS / GDAL GML application schema support update : use case on French Groundwater Information Network (GIN) BRGM – S.Grellet OGC Hydro DWG Workshop 2017.

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Presentation on theme: "QGIS / GDAL GML application schema support update : use case on French Groundwater Information Network (GIN) BRGM – S.Grellet OGC Hydro DWG Workshop 2017."— Presentation transcript:

1 QGIS / GDAL GML application schema support update : use case on French Groundwater Information Network (GIN) BRGM – S.Grellet OGC Hydro DWG Workshop 2017 – Tuscaloosa –

2 French GIN – linked data use case
Objectives To provide stable and resolvable links to resources To allow reference / data citation Independant from underlying technologies used to provide data I am #Piezometre/00634X0147/PZ1.2 attached to #Borehole/00634X0147/PZ1.2 I am #Piezometre/00634X0147/PZ1.2 attached to #Borehole/00634X0147/PZ1.2 I have a lot of #GroundWater Levels observations regarding #EntiteHydroGeol/107AK01 I am #EntiteHydroGeol/107AK01 I am #EntiteHydroGeol/107AK01 I am monitored by #Piezometre/00634X0147/PZ1.2 #GroundWater Levels obs. from #Piezometre/00634X0147/PZ1.2 OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

3 French GIN – linked data use case
Flows based on OGC and INSPIRE defined featureTypes Env. Monitoring Facility environmentalMonitoringFacility attachedTo GroundWater raw levels hasObservation relatedMonitoringFeature Borehole GroundWater validated levels Geology / HydroGeology featureOfInterest Observations/ Geological logs relatedObservation featureOfInterest xx Legend: Feature(s) Observation(s) OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

4 French GIN – linked data use case
Object instances are associated by their URI Env. Monitoring Facility URI GroundWater raw levels URI Borehole GroundWater validated levels Geology / HydroGeology URI Observations/ Geological logs URI URI Legend: Feature(s) Observation(s) OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

5 French GIN – linked data use case
URI allowing to dereference content exposed by OGC services Env. Monitoring Facility URI WFS GroundWater raw levels URI Borehole SOS WFS GroundWater validated levels Geology / HydroGeology URI Observations/ Geological logs URI SOS URI WFS SOS Legend: Feature(s) Observation(s) OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

6 GML application schema toolbox - overall context
Initial idea Reuse information available in XML compliant to xsd(s) to handle this content with no hardcoded configuration -> enriched XML and database generation on the fly. Retrieve objects of interest described according to a standard = semantic and geographical representation interacts with the content (XML and Database). Database -> plug other tools Resolve XLinks to add more content vocabulary registry definitions (multilinguism is handled) linked domain features / observation OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

7 GML application schema toolbox - overall context
Trigger custom widgets based on standards working: Waterml 2 timeseries, Inspire PointTimeSeries drafty: GW_GeologyLogCoverage on-going EU AirqualityDirective timeseries Writes content (file not WFS-T) Standalone OGR/GDAL driver -> reuse Previously presented during last year workshop Koblenz 2016 Hydro DWG Workshop presentation of the Proof Of Concept QGIS plugin OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

8 GML application schema toolbox use – QGIS 3
OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

9 GML application schema toolbox use – XML
Env. Monitoring Facility GroundWater raw levels URI URI 1 2 OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

10 GML application schema toolbox use – XML
Env. Monitoring Facility GroundWater raw levels URI URI 3 OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

11 GML application schema toolbox use – XML
Borehole A OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

12 GML application schema toolbox use – XML
Borehole OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

13 GML application schema toolbox use – XML
Borehole Observations/ Geological logs URI B OGC Hydro DWG Workshop 2017 – Tuscaloosa – Copyright © 2017 Open Geospatial Consortium 2 2

14 GML application schema toolbox use – XML
Borehole Observations/ Geological logs URI OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

15 GML application schema toolbox use – XML
Borehole URI URI Env. Monitoring Facility -> back to slides 9, 10 OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

16 GML application schema toolbox use – Database
WaterML2 flow (see slide 10, Timeseries viewer) but client in database mode Tables created dynamically by GDAL GMLAS OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

17 GML application schema toolbox use – ogrinfo
Ex: direct driver access to GroundWaterML2 GW_Well OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

18 Overall – development story
NO DATA ? NO CLIENT « another approach to demonstrate the usefulenessof interoperable standards »  or « having something to show to those who consider XML is not sexy » OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

19 Overall – development story
From the ProofOfConcept to an enhanced approach 2016 2017 Run n° 1 QGIS 2.x GML application schema toolbox POC GML App Schema OGR Driver and QGIS 3 integration Run n°2 Run n°3 (now) GML App Schema OGR Driver and QGIS 3 integration enhancements OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

20 Overall – development story
From the ProofOfConcept to an enhanced approach Run n° 1 QGIS 2.x GML application schema toolbox POC GML App Schema OGR Driver and QGIS 3 integration Run n°2 PyXB -> specific OGR/GDAL GMLAS driver (targetting GDAL 2.2), handling both reading and writing Integration within QGIS 3 - GDAL GMLAS : addition handling specific SWE types based on GWML2 GW_GeologyLogCoverage and EU Air Quality Reportings (dataArray, dataRecord, …) - QGIS 3 : enhanced widgets for timeseries, and borehole logs + some commit to the trunk Run n°3 (now) GML App Schema OGR Driver and QGIS 3 integration enhancements 2.2 3 OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

21 Useful links Documentation, GUI presentation Multilinguism handling on INSPIRE registry: same flow asking for English then Greek definitions How to test under QGIS3 until its official release Use OSGeo4W installer Advanced install \ Desktop -> add qgis-dev Then install the plugin from QGIS repository OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

22 Conclusion Generic work successfully tested on
OGC : GroundWaterML2, GeoSciML4, WaterML2 INSPIRE : EnvironmentalMonitoringFacilities, BioGeographicalRegions, LandCover, ProtectedSites, MineralResources, PointTimeSeriesObservation Our domain colleagues can now finally make use of standardized content  Next steps Address (some) SWE specificities Have more domain widgets Handle other content type (JSON-LD ?) Workshop at Foss4G-E : github ticket to gather content to play with Feel free to use, test, enhance it, propose evolutions OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

23 Conclusion - whishlist
Input data reading Output data writing Data format Data use Input connector GUI-Widget WaterML2 WFS 2 client <XML> GUI-Widget GWML2 BoreholeLog GMLAS GMLAS File GUI-Widget EU AQD TimeSeries PostreGre/GIS Spatialite SOS 2 client More data structures More data structures More domain GUI-widgets Data processing libs GML Application schema toobox Existing Evolution idea OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

24 Thank you s.grellet@brgm.fr m.beaufils@brgm.fr 2 2
OGC Hydro DWG Workshop 2017 – Tuscaloosa – 2 2

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