Global Mapper v25.0

GML importing issue

JamesRutter
JamesRutter Global Mapper UserTrusted User
edited September 2013 in Technical Support
Land Registry in the UK have just released land ownership polygons in GML format.

I downloaded the file for Surrey Heath from here... INSPIRE downloads - Land Registry for England and Wales

Loading this into Global Mapper took over 4 hours. I left my PC on overnight and when I got in the next day it had loaded the polygons (37,000 of them). When I tried exporting to a GM Package file...GM just went not-responding. Left it for about an hour before killing the process.

Tried loading the GML file into Cadcorp...after about half a minute it said it could not load the file.
Same with Manifold GIS.

Eventually tried Astun Technology's loader ( https://github.com/AstunTechnology/Loader) to load the GML into Postgres.....took no longer than 30 seconds to dump the whole gml file into the database!!!

Any ideas on why GM took over 4 hours to do something with the file??

Cheers

James

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