[Talk-ca] canvec data offset

[michael bishop]

the south east corner of 021O10.0 is at 47.5000034 by -66.7500013
the north east corner of 021O07.1 (should be exact same node), is at 
47.5000000 by -66.7500000
the exact offset differs from corner to corner, some are off more then 
others, some are off in a different direction


On 01/31/2012 08:11 AM, Bégin, Daniel wrote:
> Bonjour,
>
> I'll have a look to see if I can do something for it in the next release.
>
> I suspect that might be caused by data resolution. Lat and Lon are stored in decimal degrees with 7 digits precision (48.1234567). The 7th digit will provide a precision around 0.001 meter. The 6th digit a precision around 0.027 meter witch look like your 0.03 meter.
>
> Cheers
> Daniel
>
> -----Original Message-----
> From: michael bishop [mailto:clever at nbnet.nb.ca]
> Sent: January 30, 2012 16:11
> To: Talk-CA OpenStreetMap
> Subject: [Talk-ca] canvec data offset
>
> ive been working with canvec for a few days now, and ive noticed some of the data is offset by 0.03 meters its not matching up with nearby tiles
>
> for example 021O10 doesnt match up with 021O07
>
> ive noticed the problem on other tiles aswell, but didnt think to write them down
>
>
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