https://www.adathedev.co.uk/tags/ordnance-survey/Recent content in Ordnance Survey on AdaTheDev BlogHugo -- gohugo.ioadathedev@gmail.com (Adrian Hills)adathedev@gmail.com (Adrian Hills)Wed, 13 Mar 2013 23:09:00 +0000https://www.adathedev.co.uk/2013/03/gb-post-code-importer-conversion.htmlWed, 13 Mar 2013 23:09:00 +0000adathedev@gmail.com (Adrian Hills)https://www.adathedev.co.uk/2013/03/gb-post-code-importer-conversion.htmlIn a post last year (Ordnance Survey Data Importer Coordinate Conversion Accuracy) I looked into an accuracy issue with the conversion process within the GeoCoordConversion DLL that I use in this project (blog post). Bottom line, was that it was a minor with an average inaccuracy of around 2.5 metres and a max of ~130 metres by my reckoning. I’ve since had a few requests asking if I can supply an updated GeoCoordConversion DLL with fixes to the calculations.https://www.adathedev.co.uk/2012/03/ordnance-survey-data-importer.htmlWed, 14 Mar 2012 22:11:00 +0000adathedev@gmail.com (Adrian Hills)https://www.adathedev.co.uk/2012/03/ordnance-survey-data-importer.htmlUpdate 13 March 2013: Please see latest blog post (fix) on this here. Thanks to a comment on my original post around my project that imports Ordnance Survey CodePoint data into SQL Server, I was made aware of a potential issue with the (awesome) third party GeoCoordConversion DLL I use to convert the Eastings/Northings coordinates supplied in the Ordnance Survey data files, into Latitude/Longitude coordinates. The issue relates to an inaccuracy in the conversion process, specifically to do with integer divisions instead of double.https://www.adathedev.co.uk/2011/03/os-data-importer-supports-scale.htmlSun, 27 Mar 2011 21:54:00 +0100adathedev@gmail.com (Adrian Hills)https://www.adathedev.co.uk/2011/03/os-data-importer-supports-scale.htmlI’ve just pushed some updates to GitHub for the Ordnance Survey Data Importer .NET app I’ve been working on every now and then (see my previous posts: GB Post Code Geographic Data Load to SQL Server using .NET and OS CodePoint Data Geography Load Update). Aside from a little re-jigging to potentially pave the way to load more Ordnance Survey data files to SQL Server in the future, it now supports importing the 1:50000 Scale Gazetteer data file to SQL Server (available to download from here).