2021-09-30, 16:00–16:30, Aconcagua
You’ve almost certainly used the PDF format to store a map visualisation before - but did you know that PDFs aren’t restricted to static data? Using Geospatial PDFs you can build interactive PDFs in which layers can be switched on and off, data and locations can be queried, and data can even be re-loaded back into a GIS system. And you don’t need fancy software to create these PDFs: it can be done with QGIS and GDAL.
This talk will start with the basics of exporting a Geospatial PDF from QGIS, and demonstrate what can be done with the resulting PDF. I will then show how nicely styled Geospatial PDFs can be created in GDAL using a XML configuration file (yes, GDAL can do vector styling!). Finally, I will show just how far you can take this...creating a fully-interactive, animated geospatial data display application in a PDF file (yes, really - it sounds crazy, and it probably is a bit crazy, but it works!).
Open-source code samples will be provided alongside the presentation, and the presentation will include interactive demonstration of the created PDFs. The presentation is likely to appeal to users of all experience levels, and may introduce even expert users to possibilities they had never considered!
If you want to experiment with GeoPDFs yourself, then you'll need a recent version of QGIS and a recent version of GDAL. To experience fully one of the PDF files that will be shared as part of the talk, you will need Adobe Reader installed - this is proprietary software, but is available for free download from the Adobe website.
Wilson, Robin (1)
(1) Freelance geospatial analyst and software developerTrack –
Data visualization: spatial analysis, manipulation and visualizationLevel –
2 - Basic. General basic knowledge is required.Language of the Presentation –
Robin is a former academic in remote sensing, now working as a freelance geospatial data scientist and software developer. He has released a number of open-source Python packages, and is active in software sustainability research. He blogs at www.blog.rtwilson.com.