Using ONS data to map convex hull boundaries of major cities in UK and Ireland

[lschmid83]

The implementation of region information for meetings was built around the fact that official AA website supplied region metadata for meetings which could be used to calculate an approx convex hull that could then be used to fill in the missing data of where meetings from other sources are located. Unfortunately it seems official AA currently is not providing this data. I have noticed that ONS provides regional boundaries for major cities in the UK and Ireland. If possible I would like to determine convex hulls of regions using a simplified point set and then use this to find if a marker position lays within these boundaries. If this is not possible the best suggestion would be to create and then read csv files from the existing region information in previous dumps.

[lschmid83]

I have implemented a program to generate a region.csv which contains the convex hull boundary data. This is read by the RMF.DataInserter and meetings are assigned a reigon based on whether the location falls within one of the region convex hulls.