Plan4all Georama Presentation at Patras (12-13.09.2011)

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Plan4all Georama Presentation at Patras (12-13.09.2011)

  1. 1. WP7 technical meetingManolis Viennas, External Partner GEORAMA Patras, Greece 12.-13. September 2011Co-funded by theCommunity programme GEORAMAeContentplus 1
  2. 2. Patras, Greece 2
  3. 3. GEORAMA Contribution 3
  4. 4. Hardware and SoftwareServer• virtual machine• one processor 2 GHz• 6 GB of RAMSoftware• Windows Server 2008 64bit• Tomcat 6.0.29 dedicated web server• PostgreSQL Database Servernotice that the component is fully cross-platform 4
  5. 5. 7.1 - Metadata Deployment 5
  6. 6. GEORAMA-Content Provider• Existing metadata are copy of original data provider data descriptions without changes since Georama is no data owner.• Initial datasets have been retrieved from geodata.gov.gr• Georama supports and re-distributes the whole datasets through its own facilities and infrastructure acquired for the Plan4All project – plan4all.georama.org.gr 6
  7. 7. Metadata Portal Solutions• local implementation• OGC compliant• SDI infrastructure based entirely on open source software• metadata portal solution: Geonetwork 7
  8. 8. Catalogue Services• Catalogue services: Geonetwork• allow creation, editing and search of metadata 8
  9. 9. Metadata EditingMetadata storage is automatically kept by Geonetwork in the PostgreSQL 9
  10. 10. Metadata Search/DownloadInteractive search/download: besides the consultation via CSW protocol, it ispossible to do an interactive direct search through the GeoNetwork webinterface, which allows also metadata download as PDF or XML. 10
  11. 11. Metadata Web ServicesCWS: http://plan4all.georama.org.gr/geonetwork/srv/en/csw 11
  12. 12. plan4all.eu/catalogue/ - georama csw 12
  13. 13. Metadata - Thesaurus• There is currently no thesaurus supporting multilingual discovery of data• In meta-data system used GEMET thesaurus and to extend search and identify capabilities added keywords in local language 13
  14. 14. 7.2 – Data Deployment 14
  15. 15. Source Data• Source data: Corine Land Cover 2000 for the whole Greece, which have been finalized and updated constantly since 2004 by the Greek organization for cadastre and chartography (www.okxe.gr). Data are produced according Corine Land Cover mapping requirements.. 15
  16. 16. Source Data (2)• Source data come from geodata.org.gr and reproduced through Georama’s map services • ESRI Shapefile format • Greek Grid GCS_GGRS_1987 projection• The harmonisation process is built up on the source data in the ESRI Shapefile format. This file contains all important data regarding land cover specification. 16
  17. 17. SchemeThe base structure of the source data is presentedin the table. Originally the field are describedaccording CLC standard. 17
  18. 18. Features and Code ListsThe table describe source data features, attributes and codelists important for data transformation and harmonisation 18
  19. 19. Transformation Method• Main tasks in transformation are simple manipulations with attribute data and geometries.• Actions are performed using ArcMap GIS software (of course they can be performed using any other GIS application completely or some parts from described process steps)Steps using ArcMap SW toolbox scripts:1. Dissolve neighbour geometries with equal Corine Land Cover codes (action is performed just for security reasons, such cases in dataset should not be); During the transformation this fact is verified 19
  20. 20. Transformation Method (2) ArcMap SW showing clc properties including corine Greek text description for categories 20
  21. 21. Transformation Method (3) Verifying that all polygons are dissolved according to corine area codes 21
  22. 22. Spatial transformation processThe spatial transformation are also needed due to thefact that Greece holds all its data in a projectedGreek Grid format (GCS_GGRS_1987 ) whichrequired the following steps in order to be convertedto the final required projection:1. Reprojecting to WGS84: EPSG: 36233;2. Colour schemes are lost in the transition and need to be recreated in the geoserver. 22
  23. 23. Transformation Scheme 23 Transformed shape file for corine Greece
  24. 24. Publication-Web Map Client• The data publication is performed using Geoportal System provided functionality: • Search: search of data and metadata using Micka metadata solution • OGC services: CWS, WMS, WFS, WCS. • Downloads: data file download, via HTTP, to use with local applications.• The data has been published in the WGS84 system• As desktop client can be used any application able to use OGC WMS, WFS or CSW services like ArcMap SW, gvSIG, QuantumGIS, Open JUMP, uDig and other 24
  25. 25. Publication-Web Map ClientThe harmonised data is published in a simple web mapapplication at http://plan4all.georama.org.gr 25
  26. 26. Publication - Web Services• WMS 1.1.1 - http://plan4all.georama.org.gr/geoserver/ows?servic e=wms&version=1.1.1&request=GetCapabilities• WFS 1.1.1 - http://plan4all.georama.org.gr/geoserver/ows?servic e=wfs&version=1.1.0&request=GetCapabilities• All web services are available in http://plan4all.georama.org.gr/geoserver 26
  27. 27. plan4all.eu/map – georama wmsExample of WMS (General land Use layer) serviceconnection using Plan4all portal map client: 27
  28. 28. Results• Comments on Conceptual Models • Model is well understandable because is similar to Corine Land Cover that is well known and accessible for reference.• Recommended changes • Multilingual code translation of corine areas has to be further investigated 28
  29. 29. • 8.3 – Validation of platform 29
  30. 30. Validation - Task 8.3Task 8.3 Validation of platform - Declaration of InputsCurrently Working:• First V&V Report• List of potential users• List of actual/planned capabilities 30
  31. 31. Thank You Contact us at: plan4all@georama.org.gr 31

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