BCS_SOC_2016_rossmcdonald_qgis_maptools
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British Cartographic Society / Society of Cartographers conference 2016. Presentation on cartographic tools and features available in QGIS 2.14 and 2.16 including labelling, layer symbology, 3d rendering, map layouts. Includes examples of live style dock, print composer features and labelling engine enhancements.
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BCS_SOC_2016_rossmcdonald_qgis_maptools
- 1. BCS – SoC Conference 2016 : Mapping at the Edge QGIS ESSEN 2.14 (and beyond…)
- 2. BCS – SoC Conference 2016 : Mapping at the Edge Ross McDonald GIS Data Coordinator Angus Council mcdonaldr@angus.gov.uk @mixedbredie #qgis #bcssoc16
- 3. BCS – SoC Conference 2016 : Mapping at the Edge QGIS /kju: djis/ or kew-jiss a free and open source geographic information system (with top end cartographic tools...)
- 4. BCS – SoC Conference 2016 : Mapping at the Edge QGIS Factoids First source code written 2002 304 devs committed 34000 changes in 838,000 lines of code 111 developers committed 5927 changes in the last 12 months increasing year-on-year contributions 229 person years of effort at an estimated cost of $12.5m See Openhub.net for more
- 5. BCS – SoC Conference 2016 : Mapping at the Edge So, Essen…
- 6. BCS – SoC Conference 2016 : Mapping at the Edge LTR – Long Term (Support) Release Support for a year Stability for larger organisations Better continuity and less disruption Back-ported bug fixes and enhancements
- 7. BCS – SoC Conference 2016 : Mapping at the Edge HOW RELEASES WORK
- 8. BCS – SoC Conference 2016 : Mapping at the Edge WHAT’S IN THE BOX?
- 9. BCS – SoC Conference 2016 : Mapping at the Edge RENDERING TOOLS, ANALYTICAL TOOLS, MAP PRODUCTION TOOLS, PLUGINS, EDITING AND DIGITISING TOOLS, DATABASE TOOLS, SCRIPTING TOOLS, BUTTONS, WIDGETS, MORE BUTTONS
- 10. BCS – SoC Conference 2016 : Mapping at the Edge CONSUME DATA All supported OGR vector formats Spatial databases All supported GDAL raster formats OGC compliant web services
- 11. BCS – SoC Conference 2016 : Mapping at the Edge MANAGE DATA Read and write to your database of choice Export to just about any format inc. CAD Save associated styles with the layer in the database Create custom forms for data capture and editing Edit, snap and trace features with digitising tools
- 12. BCS – SoC Conference 2016 : Mapping at the Edge ANALYSE DATA Plugins for GRASS, R, SAGA and fTools The Processing Toolbox Batch processing Drag 'n drop modeller
- 13. BCS – SoC Conference 2016 : Mapping at the Edge PRINT COMPOSER Custom templates Multiple map layouts (on multiple composers) Atlas generation Dynamic legends, guides, insets, overviews and graticules
- 14. BCS – SoC Conference 2016 : Mapping at the Edge PLUGINS! 603 at the last count, extending QGIS in all areas Check out QGIS2web, QGIS2ThreeJS, TimeManager
- 15. BCS – SoC Conference 2016 : Mapping at the Edge INTERACTIVE 3D OUTPUT
- 16. BCS – SoC Conference 2016 : Mapping at the Edge PYTHON
- 17. BCS – SoC Conference 2016 : Mapping at the Edge CARTOGRAPHIC TOOLS
- 18. BCS – SoC Conference 2016 : Mapping at the Edge LABELLING "cartographic" placement rendering order complex rule based labelling See Nyall Dawson's blog
- 19. BCS – SoC Conference 2016 : Mapping at the Edge CARTOGRAPHIC PLACEMENT 2. top left 7. top (rightish) 1. top right 6. middle left 5. middle right 4. bottom left 8. bottom (leftish) 3. bottom right
- 20. BCS – SoC Conference 2016 : Mapping at the Edge OS datasets come with useful attributes font font height orientation anchor position QGIS wants to maximise # labels on display Priority can be data defined
- 21. BCS – SoC Conference 2016 : Mapping at the Edge OBSTACLE ONLY LAYERS a non-labelled layer as obstacle for labels in another layer Examples by Nyall Dawson
- 22. BCS – SoC Conference 2016 : Mapping at the Edge POLYGON OBSTACLES Choose between interiors or boundaries Examples by Nyall Dawson
- 23. BCS – SoC Conference 2016 : Mapping at the Edge OTHER LABEL FEATURES Fit labels in polygon Label every feature part Limit labels to ### features Rule based labelling
- 24. BCS – SoC Conference 2016 : Mapping at the Edge SYMBOLOGY Choice of renderer Choice of symbol layer type Blending Draw effects Save as QML/SLD/QLR
- 25. BCS – SoC Conference 2016 : Mapping at the Edge Diagram by Tim Sutton, Kartoza
- 26. BCS – SoC Conference 2016 : Mapping at the Edge 2.5D RENDERER and Single, Categorised, Graduated, Rule-based, point displacement, heat map, inverted polygons
- 27. BCS – SoC Conference 2016 : Mapping at the Edge RULE BASED RENDERING Assign features to a class based on attribute Use the data to define the style Use the map scale to show/hide or generalise features
- 28. BCS – SoC Conference 2016 : Mapping at the Edge BLENDING Dodge, burn, lighten, multiply…
- 29. BCS – SoC Conference 2016 : Mapping at the Edge
- 30. BCS – SoC Conference 2016 : Mapping at the Edge
- 31. BCS – SoC Conference 2016 : Mapping at the Edge DRAW EFFECTS Drop shadows and glows Blurs Transformations Stacked effects
- 32. BCS – SoC Conference 2016 : Mapping at the Edge
- 33. BCS – SoC Conference 2016 : Mapping at the Edge
- 34. BCS – SoC Conference 2016 : Mapping at the Edge
- 35. BCS – SoC Conference 2016 : Mapping at the Edge
- 36. BCS – SoC Conference 2016 : Mapping at the Edge SAVE AND SHARE STYLES Save styles with the data In the database In a layer package
- 37. BCS – SoC Conference 2016 : Mapping at the Edge NEW IN NØDEBO See https://www.youtube.com/GKg2SHmBExs on how to pronouce Nødebo.
- 38. BCS – SoC Conference 2016 : Mapping at the Edge LIVE STYLE DOCK Select a layer, press F7 Edit symbology Edit labels Save multiple styles per layer History Thanks to Nathan Woodrow https://nathanw.net/
- 39. BCS – SoC Conference 2016 : Mapping at the Edge Using data-defined styles
- 40. BCS – SoC Conference 2016 : Mapping at the Edge Single / categorised / graduated
- 41. BCS – SoC Conference 2016 : Mapping at the Edge Use the histogram, Luke!
- 42. BCS – SoC Conference 2016 : Mapping at the Edge Whoopsie? Nae bother, pal!
- 43. BCS – SoC Conference 2016 : Mapping at the Edge Oh, it does raster too
- 44. BCS – SoC Conference 2016 : Mapping at the Edge PRINT COMPOSER Composer manager with Multiple compositions with Multiple layouts with Insets and overviews. Templates Grids and guides Atlas generator Variables
- 45. BCS – SoC Conference 2016 : Mapping at the Edge
- 46. BCS – SoC Conference 2016 : Mapping at the Edge MULTIPLE LAYOUTS
- 47. BCS – SoC Conference 2016 : Mapping at the Edge EXPORTING YOUR #cartowin Save as image, SVG, PDF or Generate an Atlas Use your data to generate a series of maps
- 48. BCS – SoC Conference 2016 : Mapping at the Edge VARIABLES QGIS has dynamic variables. There are different variables in different places. You can create @custom_variables
- 49. BCS – SoC Conference 2016 : Mapping at the Edge QGIS ESSEN 2.14 (and beyond…)
- 50. BCS – SoC Conference 2016 : Mapping at the Edge QGIS RESOURCES QGIS Map Design: Gretchen Peterson and Anita Graser qgis.org, gis.stackexchange.com and mailing lists QGIS UK user group: qgis.uk and G+ group and @qgisuk
- 51. BCS – SoC Conference 2016 : Mapping at the Edge Thank you Ross McDonald Angus Council mcdonaldr@angus.gov.uk @mixedbredie LinkedIn: http://bit.ly/1yWAY5J
Notas do Editor
- Hello and thank you for coming to find out about my favourite desktop GIS, QGIS. I’ll be talking about QGIS Essen and some of the features in Nodebo. It’s going to be a whistle stop tour through features new and old.
- I am Ross McDonald, the GIS coordinator at Angus Council on the east coast of Scotland north of Dundee. Together with my colleague Roger we manage about 55 GIS power users on QGIS, half a dozen on ArcGIS and about 300 on our web GIS.
- Over the last few years we switched out a lot of proprietary software and replaced it with an open source stack based on Postgresql, PostGIS, QGIS and Geoserver.
- It is an established project 14 years old. It's just about the largest open source development team in the world. Some of you may have heard Steven Feldman's talk - there's no such thing as a free lunch. And there isn't - although it is free to download and use, there has been a huge cost in people's time (and own finances) developing QGIS and it is only through sponsorship and donation of more people's time and money that QGIS gets better and better.
- QGIS releases are named after places where a gathering of developers have hacked and worked on the project to make it the tool of choice for many. I'll be talking about Essen and some of the new features in Nodebo.
- The long term support release was created by the development team after requests from the community for something that didn't break paradigms every four months. Something easier to manage in large organisations but still supported with fixes and enhancements.
- There is the stable LTR series - 2.14 - and the stable latest series - 2.16 - and the bleeding edge master release leading up towards the version 3 release. Slide taken from Oslandia’s presentation at FOSS4G 2016.
- So, what do you get with a default install of QGIS?
- Everything you can expect to see in a fully featured desktop GIS package and more. And free. And open.
- What does all this open source goodness let us do? It can consume data in any format supported by GDAL and OGR
- It allows you to manage your data in all those supported formats but it works best with a database out back.
- QGIS has built in support for other geo-spatial toolkits through the Processing toolbox including batch processing and a drag ‘n drop modeller.
- Once you’ve added your data, morphed it into the correct format and done your analytics you can print out your results using the Print Composer. This is one part of QGIS that has come along in leaps and bounds and if you’ve not used it in a couple years you should try it again.
- QGIS is extensible through plugins – some are built in and others are available from the repository – there are a lot to choose from. QGIS2WEB by Tom Chadwin TimeManager by Anita Graser and others Qgiss2threejs by Minoru Akagi
- Qgis2three js example.
- But what cartographic tools are there at hand?
- There is a powerful labelling engine inside with a huge number of configuration options available – Nyall Dawson does a lot of work on this part of QGIS and it is improving all the time. Nyall Dawson and Nathan Woodrow amongst others do a lot of work on making QGIS output high quality.
- If you work with Ordnance Survey data and QGIS then you can leverage all the additional attribution the Carto Design team (https://www.ordnancesurvey.co.uk/resources/carto-design/) have added to their datasets with the data defined options within QGIS.
- QGIS also allows you set a layer as an obstacle to labels – in this example we don’t want the labels covering the railway lines so set the lines as an obstacle to the labelled layer. Examples from Nyall Dawson’s blog
- You can do the same with area boundaries – only place the label inside a polygon and don’t let it cross an edge.
- All this functionality and more help make automated labelling in QGIS very good – you will still get those use cases where nothing but hand crafted label placement will do and QGIS will let you do that too.
- QGIS offers you all the styling tools and function you need in a GIS and some that would normally only find in a graphics package.
- Play with pixel values to blend your layers together.
- Blend mode set to multiply – i.e. multiply the pixel values of this layer with the layers underneath. Let’s add another layer – a hill shaded image.
- You’ll need to play about with the brightness, saturation and transparency to get it just right.
- Draws effects is another new feature that allows you to add inner or outer shadows and/or inner of outer glows to your features.
- Let’s combine some layers with blend modes and draw effects – a vanilla base map
- Some vegetation classification data overlaid
- Blend the vegetation layer
- Add some outer drop shadows and an inner glow
- Once you’ve done all the hard work creating your custom style you can save and share those styles. We save layer styles in our database so that all users get the same look and feel when they load a layer. If you use spatialite databases then you can save the style with the data too. Or as a layer file or layer package which are file based.
- All these features I’ve shown you are available in Essen but Nodebo has some new features that make workflows much slicker.
- Animated gifs by Nathan Woodrow
- Animated gifs by Nathan Woodrow
- Animated gifs by Nathan Woodrow
- Animated gifs by Nathan Woodrow
- Animated gifs by Nathan Woodrow
- The QGIS Print Composer gives you a composer manager to handle multiple compositions with multiple layouts
- If you want to go deep then you can dive into using QGIS variables and even create your own. You could, for example, take the user’s name and contact details and assign them to variables that are then automatically embedded in a custom template and will appear on all maps that are printed.
- But that’s enough for now. If you want to find out more then …
- QGIS map design is a new book just out the goes into detail with all the mapping tools I’ve mentioned. For help check the docs or gis.stackexchange.com and the mailing lists. Find a QGIS user group near you and meet up or join the Google+ group.
- Thank you. All maps contain Ordnance Survey data. Crown copyright and database rights 2016. 100023404.