[Talk-GB] OS Boundaries
John Robert Peterson
jrp.crs at gmail.com
Mon Apr 19 18:04:46 BST 2010
There is also the quite high level question of what is the "correct"
position for these boundaries: if a boundary follows a river, and the
river has changed course by a few meters since this boundary was
established, does the boundary move with it, or does it stay where it
I assume that the errors that you are finding are basedo n the complex
tweaking of the OS grid that was done to correct for surveying errors
way back befor they had gps?
Do we have a precise definition of these tweaks they made to the grid system?
What are the magnatudes of these errors?
On 19 April 2010 17:58, Tom Hughes <tom at compton.nu> wrote:
> On 19/04/10 17:18, Chris Hill wrote:
>> Each boundary needs to share nodes with adjacent ones. County and
>> district boundaries will also need to share nodes, so the process of
>> loading them individually might be quite tedious, and would involve
>> dealing with any existing boundaries. Working on improving county
>> boundaries might be a good place to start.
> Ideally they also need to be done as relations and share ways with
> adjacent ones. Indeed it would be good if they shared ways with any
> existing features (such as rivers) where appropriate...
> Tom Hughes (tom at compton.nu)
> Talk-GB mailing list
> Talk-GB at openstreetmap.org
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