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Lat/Long to OS Grid ref
This is a discussion on Lat/Long to OS Grid ref within the Development forums, part of the MapPoint 2006/2009 Discussion category; Can anybody point me in the direction of a converter from Lat/Long to OS grid ref (for the UK) which ...
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11-25-2007
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| Re: Lat/Long to OS Grid ref
Hi, I found this: Convert between Latitude/Longitude & OS National Grid Reference points example sare in javascript but should be easy to translate to VB.
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11-26-2007
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| Re: Lat/Long to OS Grid ref
I think there's also a manual on the OS website. I know I have a printout somewhere that I printed out years ago. It goes through the theory - eg. what the transformation actually means and what the assumptions are. The trick that is easy to forget (and Microsoft *did* forget in MapPoint 2002!) is that OS grid references use the Airy '36 geoid rather than the WGS84 used by MapPoint (and most GPS devices). Richard
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12-13-2007
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| Re: Lat/Long to OS Grid ref
Try here for a detailed discussion of, and and C code for, the complete conversion cycle from NMEA data through to Long/Lat and then OS Grid Refs. The linked page is specifically about LL to OSRefs but the entire article is very useful. |
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| Tags |
| grid, lat or long, ref |
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| Posted By | For | Type | Date | |
| MapPoint News - MP2K Magazine | This thread | Refback | 11-29-2007 10:55 PM | |
| Latitude / Longitude DMS -> Decimal Converter - MP2K Magazine | This thread | Refback | 11-26-2007 08:29 AM | |
| MapPoint Help - MP2K Magazine | This thread | Refback | 11-25-2007 07:23 PM | |
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| Thread | Thread Starter | Forum | Replies | Last Post |
| Displaying lat/lon grid? | cd4000 | MapPoint 2006/2009 Discussion | 2 | 11-12-2004 09:18 AM |
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| OS Grid References - FindResults | Anonymous | MapPoint 2006/2009 Discussion | 3 | 10-14-2002 04:20 AM |
| MP 2002 Zipcode Map Grid | kb0sei | MapPoint 2006/2009 Discussion | 2 | 10-09-2002 09:58 PM |
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