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Open Geographies and Open Software
- 1. Open geographies andopen software – using open UKDS- CS datasets in open source GIS software James Crone UK Data Service Census Support EDINA
- 2. Hi An introduction… James Crone UKData Service EDINA GeoServices University of Edinburgh
- 3. During the webinartoday we will look at open data that is available through UKDS-CS and the use of this data in open source GIS software Overview of what open data is and what open data is available through UKDS-CS Overview of what open source GIS software is and some of the different tools/applications which are available Detailed demonstrations of the use of UKDS-CS data in QGIS – the user friendly open source GIS application Welcome
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- 5. What is theUK Data Service? • a comprehensive resource funded by the ESRC • a single point of access to a wide range of secondary social science data • support, training and guidance
- 6. Who is itfor? • academic researchers and students • government analysts • charities and foundations • business consultants • independent research centres • think tanks ukdataservice.ac.uk
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- 9. What is CensusSupport? • access to, and user support for, data from the last five UK population censuses (1971 – 2011) • Majority of data provided by UKDS-CS is now available as open data census.ukdataservice.ac.uk
- 10. Types of UKDS-CSdata
- 11. Digital Boundaries /Aggregate Data Contains National Statistics data © Crown Copyright and database right 2012 Contains Ordnance Survey data © Crown Copyright and database right 2012
- 12. Aggregate data (CSV)in excel. Shapefile in QGIS
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- 14. What is opendata? Open data is data that is made available by organisations, businesses and individuals for anyone to access, use and share. Source: open data institute
- 15. Open Government Licence •copyright licence for Crown Copyright works published by the UK government • compatible with the Creative Commons Attributions (CC-BY) licence • permits anyone to copy, publish, distribute, transmit and adapt the licensed work, and to exploit it both commercially and non- commercially • in return, the re-user of the licensed work has to acknowledge the source of the work and (if possible) provide a link to the OGL
- 16. Open data availablethrough UKDS-CS • Most UKDS-CS data is now available under OGL • Majority of boundary datasets were already or have now moved (on October 14th ) to OGL including those that used to be restricted to academics e.g. 1991 census boundaries. • Discussions are ongoing to move datasets which are still not available as open data e.g. 1981 boundaries over to open licenses to allow anyone to download.
- 17. OGL geographical boundarydatasets available through UKDS-CS
- 18. Other open data– data.gov.uk
- 19. Other open data– OS OpenData
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- 21. What is Open-sourceGIS software? Open-source (GIS) software is computer software made available with a license in which the copyright holder provides the rights to study, change and distribute the software to anyone and for any purpose. Open-source software is often developed in a public, collaborative manner.
- 22. OSGeo : www.osgeo.org TheOpen Source Geospatial Foundation A not-for-profit organisation whose mission is to support the collaborative development of open source geospatial software and promote its widespread use Projects should manage themselves, striving for consensus and encouraging participation from all contributors, from beginners through to advanced users
- 23. Contributing to opensoftware • Report Bugs - so developers can check and fix things • Participate in Support - on mailing lists, IRC channels, forums and user groups • Write documentation / tutorials • Translate • Develop plugins and extensions to add new functionality • Develop on core software
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- 28. UKDS-CS Boundary DataSelector application powered by OSGeo software QGIS used to check/prepare data Boundaries held in PostGIS database Map View in Boundary Data Selector uses OpenLayers to render preview maps using MapServer Boundary data extracts are serviced by GeoServer
- 29. Using UKDS- CS datain QGIS
- 30. Practical demonstrations ofuse of open data from UKDS-CS in QGIS software • From UKDS-CS we have downloaded a set of OGL small area aggregate statistics and boundaries • From OS OpenData we have downloaded GIS layers & contextual background layers • Over the rest of the webinar we`ll look at a complete process of bringing this data into QGIS, creating map`s based on the census data and doing some spatial analysis.
- 31. Demo 1: Gettingstarted with QGIS • Obtaining / Installing QGIS • Introduction to the QGIS interface
- 32. Demo 1: QGISGUI
- 33. Demo 2: Openingdata in QGIS Census data downloaded from UKDS-CS can be opened in QGIS in different ways which has an effect on how that data can be used. Will show best practice.
- 34. Demo 3. Linkingdata in QGIS A common task when using data downloaded from UKDS-CS is linking small area statistical data to boundaries. Will show to do this in QGIS.
- 35. Demo 4. Makingmaps in QGIS QGIS has excellent tools to create choropleth maps from UKDS-CS data and produce maps for inclusion in reports
- 36. The Choropleth Map– visualize small area aggregate (census) data Contains National Statistics data © Crown Copyright and database right 2012 Contains Ordnance Survey data © Crown Copyright and database right 2012 Proportion of people working more than 49 hours per week (2011 Census)
- 37. Demo 5. Analysisin QGIS Spatial analysis between UKDS-CS data and geographical features in OS OpenData using QGIS
- 38. Advanced QGIS use •Store aggregate and boundary data in a PostGIS spatial database – perform analysis using (spatial) SQL. • QGIS Plugins – add extra functionality to QGIS. Chances are that if there is something that QGIS does not seem to do, a plugin has been written. • If not, write own plugin or automate processes using Python language and PyQGIS.
- 39. QGIS Documentation /Books / Help