I have been encouraging a friend to use OSM. He has just mailed in
puzzlement after trying to find an OS grid reference (presumably
looking at mapnik).
I saw
http://help.openstreetmap.org/questions/2056/using-the-ordnance-survey-national-grid-with-openstreetmap
but just converting a single grid
On 09/05/11 12:00, TimSC wrote:
The OS national grid has been around for a long time and has been
adjusted and tweaked as measurement accuracy has improved. The official
transform from the national grid (OSGB36) to GPS lat lon (WGS84) is
known as OSTN02. OSTN02 uses a large look up table to
in GPL compatible software though he does dual-licence under a
commercial licence.
Nick
-TimSC mapp...@sheerman-chase.org.uk wrote: -
To: talk-gb@openstreetmap.org
From: TimSC mapp...@sheerman-chase.org.uk
Date: 09/05/2011 12:02PM
Subject: Re: [Talk-GB] OS grid positions
ael,
The OS
On Mon, 9 May 2011, Nick Whitelegg wrote:
I have PHP code to do this, it was based on the JEEPS C library.
It's available
http://www.free-map.org.uk/svn/freemap/lib/latlong.php
I've code here:
http://derickrethans.nl/files/dump/convert.php.txt
do what you want with it :-) This is an
: -
To: talk-gb@openstreetmap.org
From: Nick Whitelegg nick.whitel...@solent.ac.uk
Date: 09/05/2011 12:26PM
Subject: Re: [Talk-GB] OS grid positions
I have PHP code to do this, it was based on the JEEPS C library.
It's available
http://www.free-map.org.uk/svn/freemap/lib/latlong.php
Also available
Tom Hughes wrote:
http://help.openstreetmap.org/questions/2056/using-the-ordnance-survey-national-grid-with-openstreetmap
Making search work is a whole different issue and I would certainly
consider reasonable patches to do that - there are complicated issues of
OS intellectual property
On 09/05/11 13:17, Phil Endecott wrote:
Good grief. Are people seriously suggesting that the Ordnance Survey
owns the grid reference system to the extent that others cannot
convert between grid refs and other formats, or draw a grid over their
own maps? That sounds like legal paranoia to me
On Mon, 9 May 2011, Tom Hughes wrote:
On 09/05/11 13:17, Phil Endecott wrote:
Good grief. Are people seriously suggesting that the Ordnance Survey
owns the grid reference system to the extent that others cannot
convert between grid refs and other formats, or draw a grid over their
own
When I last looked some time ago, the OS recommended using Grid In-quest
http://www.qgsl.com/?product=gridinquest
Which they say can be downloaded free, and with no restrictions on use.
They also claimed that the calculations should be accurate to ~ 10cm.
It can convert OSGB36 - ETRS89 -
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