[Talk-GB] Ordnance Survey Landform Panorama data

Phil James peerjay56 at googlemail.com
Mon Apr 5 23:07:34 BST 2010


Aah! Thanks Richard,
I've had a closer look now (I'd only quickly skimmed the SD folder).
I took the file numbers to be the same as the sheet references on the 
First Series sets - don't know why - especially as they are derived from 
1:50k data!
Just as a matter of interest, I'm viewing the files in Openoffice. The 
drawing app. provides a quick and easy way to view the files graphically.

Phil.

talk-gb-request at openstreetmap.org wrote:
> >
> > I've had a look at the height data, and it appears that it is incomplete
> > (many tiles are missing altogether). Does anyone know why? I realise
> > that it is the only dataset that won't be updated, but presumably they
> > have a full set. I haven't been able to find an explanation, and the
> > information about it online suggests it is a full set, though the
> > downloaded index shows it to be partial. I thought one of you 'more
> > closely involved  ;-)  ' guys might know.
> >
>   
Presumably any ones which are missing are the ones which are out to sea and 
therefore have no contours in them?
e.g. the 100x100km grid square "SV" only contains sv80.dxf - as that's the 
only square which has any land in it (the Scilly Isles)

For the ones on land - there should be 25 files per larger-grid square., 
i.e. each file represents a 20x20km square.

I've by no means checked every one on my download, but a look at quite a few 
squares show that I have all the ones I expcet to have for those squares. 







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