Question

Creating Areas, Districts and Sectors from OS CodePoint with Polygons


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Hi FME'ers,

 

I have access to Ordnance Survey's CodePoint with Polygons through the PSGA. I am trying to write a workbench that would dissolve the individual postcode polygons into the areas (DN), districts (DN1) and sectors (DN1 1). The issues here are vertical streets (sometimes stacked) and islands postcodes. I haven't had too much issue with areas and districts, they iron themselves out at these scales, but sectors are just a mess. I have been playing around with the Dissolver, Clipper, DonutBuilder and DonutHoleExtractor but each approach has it's issue.

 

I would be very grateful if anyone could share how they have achieved the above.

 

Many thanks,

David.


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