@healthmap shared detailed anonymised data. Filter England data to match Local Authority boundaries. Pivot-table them into time-series attributes per Local Authority. Use @kennethfield coxcombs in ArcGIS. Parse the class_ field into dates. Post the newly time-enabled coxcombs to fan out and show infectuous arrivals. Step-by-step starts slide 11.

1. nCOVID-19 pivot-and-fan map
How to do Map Stuff:
A Live Community Sharing Event
bit.ly/map_stuff, 29 April 2020
@azolnai

2. Premise
Pandemic & Open Data

3. OS
PHE
Wiki
ONS
+
+

4. Background
Data infrastructure

5. Numeric
E10000003
Centre point
Spatial
Symbol point
WEB
MAP
GIS
MAP

6. Pivot-and-fan
Time-enabled coxcomb symbology

11. Step by Step
ArcGIS Pro and Open Data

12. New Project

13. Counties and Unitary Authorities Dec. 2016 Full Clipped Boundaries in England
https://geoportal1-ons.opendata.arcgis.com/datasets/687f346f5023410ba86615655ff33ca9_0/data

14. Basemap (British National Grid projection)

15. Healthmap COVID-19 Dataset
https://healthmap.org/covid-19/

16. Github repository
https://github.com/beoutbreakprepared/nCoV2019/blob/master/latest_data/latestdata.csv

17. Filtered for Province: England

18. Pivot table by location for date_confirmation

19. Counties & Centroids added from ONS original

20. Import Excel worksheet and reproject to BNG

21. Kenneth Field’s “Mapping Coronavirus Coxcombs” adapted to this dataset
https://www.esri.com/arcgis-blog/products/arcgis-pro/mapping/mapping-coronavirus-coxcombs/

22. Add date_conf field & calculate from CATEGORY_ using Arcade script

23. Voila! Animated Coxcombs

24. Post individually:
- CountiesUAs as vector tiles to maintain projection
- rest added to vector tile based map will post AOK

25. Lessons learned
• Open data from ONS and HealthMap
• Shared practices from Kenneth Field
• Communities like Geonet & GIS StackExchange
• Active Twitter channels incl. #gischat
• Also on live streaming, YouTube and OBS Studio
• Opportunities to explore and extend processes
• “Learn a new thing a day, and you’ll stay young”