OSGB, LAT/LONG, Co-Ordinate Converting

Dave · Last edited by Dave on Fri Jul 30, 2004 5:37 pm; edited 2 times in total

Waypoint Workbench
http://www.sheps.clara.net/WW.htm

OSGB Converter
http://www.bangor.ac.uk/is/iss025/osgb.xls
http://www.obliquity.com/astro/osgb.html
http://www.callnetuk.com/home/shanks/OSGridConv.exe
http://www.gps.gov.uk/additionalInfo/gpsSpreadsheet.asp

WGS84 / ETRF89 Converter to national grid
http://www.qgsl.com/software/gridiq.php

MultiMap Definition
http://www.streetmap.co.uk/streetmap.dll?GridConvert&type=postcode&name=MK76AA

If you come across any others, post them here and I'll amend this top post.

TC · Posted: Wed Jul 28, 2004 4:42 pm Post subject:

... may be I'm being a bit picky here, but shouldn't the 'MultiMap definition' be 'Streetmap Conversion'?

BrianA · Posted: Wed Jul 28, 2004 7:36 pm Post subject:

What about this link:

http://www.gps.gov.uk/additionalInfo/gpsSpreadsheet.asp

Cheers
_________________
Brian Abbott

Go 520 + Navcore 8
(was a happy PDA user until TT stopped updating the software)

bgulien · Occasional Visitor Joined: Dec 07, 2003 Posts: 13

I always use this one:

http://www.obliquity.com/astro/osgb.html

Loads faster then the bangor one.

Cheers,

Bob

gacrane · Regular Visitor Joined: Jul 26, 2004 Posts: 65

Just a quick note to say that the app on the link

http://www.callnetuk.com/home/shanks/OSGridConv.exe

works as a little standalone on the PPC and so you don't need to be online, or have a full PC version of excel to do the conversion. This obviously means you can do this in the field (literally)

Its a very good little app Thumbs Up

PaulM · Occasional Visitor Joined: Jul 29, 2004 Posts: 7

Here is the official program from OSUK, OSNI & OSI for converting WGS84 / ETRF89 co-ords to national grid UK / N Ire / & Rep. Of Ireland and vice versa. Batch processing of co-ords also available

http://www.qgsl.com/software/gridiq.php

barryd · Posted: Wed Aug 04, 2004 8:27 pm Post subject:

I've also been working on a Pocket PC utility to do the OSGB WGS conversion - in both directions, several formats - then show it on the TomTom map. Not having the TomTom SDK it's a little Heath Robinson, but it works for me.

I'd be interested in any opinions of it. Particularly whether or not it works on Pocket PC 2002, which I can't test.

Info and download at:
http://www.freenetpages.co.uk/hp/barrydavies/OSGBWGS.htm.
_________________
Barry Davies

dlegros · Occasional Visitor Joined: Aug 03, 2004 Posts: 30

Barry,

I've just downloaded your OSGB converter to have a play, as I go camping, meaning I often have to find places that cannot be reliably found by Post Codes, let alone by TTN3 (even with Niels' excellent postcode utility).

A lot of campsites are located by grid reference in the larger listings books, just tried a few and they all locate spot on with your fantastic little utility.

Plus, it's quite amusing watching it "type" the co-ordinates into TTN3

Fantastic little program, Heath Robinson? Maybe - Useful? Absolutely

Keep up the great work. Thumbs Up

Dom

gacrane · Regular Visitor Joined: Jul 26, 2004 Posts: 65

Great app Barry used it last night to set all the Camping and Caravaning club sites as POIs in my TT worked great. Used Niels postcode app to for a few but wanted to try yours out and it worked great

Thanks

tramcar · Occasional Visitor Joined: Jul 09, 2004 Posts: 1

barry.

downloaded yor osgb converter onto 3870 works fine on its own but i cannot get to work with tt3 HELP

Thanks in advance
Dave Wison

barryd · Posted: Thu Aug 05, 2004 9:51 pm Post subject:

Thanks for the positive feedback. Please could you indicate what versions of TomTom and Windows you're on, so I can start building a list of what it's known to work on? I only have the one PDA myself, so testing facilities are rather limited...

tramcar - please could you clarify the software you're using as above and the symptoms of the problem, e.g. does it just not type at all, or type in the wrong fields, or it works but displays the wrong place on the map, etc. If it doesn't seem to be typing, what happens if you use it with something like Pocket Word or an empty Note behind it rather than TomTom, do you get some text being typed in then?

I will also try to get an animation on the web site in the next few days, so that you can watch what's supposed to be happening and then see where your experience differs. No promises how quickly that'll happen - damn day job keeps getting in the way of these more interesting things...
_________________
Barry Davies

PeteJohn · Posted: Wed Feb 09, 2005 3:23 pm Post subject:

Hi Barry

I have just discovered your osgb converter and loaded it onto an IPAQ rx3715. The first time I used it it went straight to my home address perfectly spot on but I cannot get it to do so again. No matter what co-ordinates I put in it always navigates to within a few degrees of Enniskillen. I tried pasting into Word with 3 different references (2 in Essex & 1 in Notts.)and these are the results
0080855w542127n
0080631w542125n
0080456w542142n as you can see not quite right (unless it's trying to tell me something!!) . I am using tt3 & Windows Mobile 2003. Trust this is of some use even if you cannot help me personally

Michael Ashworth

barryd · Posted: Wed Feb 09, 2005 4:10 pm Post subject:

Hi Michael
I've not seen this behaviour with it myself so am stumped.
Please could you let me know exactly what you've chosen in the drop-down lists and what you're typing into the boxes each time, in order to get the output values you've given me above (which, as you say, are valid output strings).
I'll then try to replicate the results so that I can identify and fix the problem.
I've recently made it run with OziExplorerCE too, so I was getting around to releasing an update for it anyway. I'd like to fix this bug before doing so.
Thanks
_________________
Barry Davies

PeteJohn · Posted: Wed Feb 09, 2005 4:24 pm Post subject:

Hi Barry

I set the boxes as follows:-
Grid box to British National Grid
Format to 2 OS Easting/Northing
East to 005103
North to 513331 This co-ordinate is the last one on the list and should take you to Ilford in Essex

Hope this helps

Michael

barryd · Posted: Wed Feb 09, 2005 7:39 pm Post subject:

Hi there,

The numbers you're using, when treated as a British National Grid reference, do indeed define a position near Enniskillen. (Some conversion tools reject them completely, as this is a position you wouldn't normally define using BNG - try inputting them on Streetmap, for example).

So, I don't think this is a BNG reference. I looked up Ilford station in TomTom (Find - Address - Ilford - Ilford), saved it as a POI, dumped the file to ASCII, and this gave me TomTom's WGS84 lat/long position for Ilford station.

I then input this to my tool and got the converted positions as shown below. From this I suspect that the coordinates you have may be a WGS84 lat/long in Degrees, Minutes and Seconds format - the latitude matches, although the longitude is a bit out - if I treat your numbers as East, you're out near Southend; or if as West, you're in Berkshire.

Can you shed any more light on where you're getting these co-ordinates from? If they are WGS84 DMS format, you can input them to my tool in by selecting WGS84 DMS format, or easier still you could type them straight into the boxes in the TomTom Go to coordinates dialog.

OS British National Grid
Grid Reference: TQ 43597 86478
Full Easting: 543597
Full Northing: 186478

WGS84 Latitude
North 51.5589200 degrees or
North 51 degrees 33.5352 minutes or
North 51 degrees 33 minutes 32.1 seconds

WGS84 Longitude
East 00.0700700 degrees or
East 00 degrees 04.2042 minutes or
East 00 degrees 04 minutes 12.3 seconds
_________________
Barry Davies

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