[Talk-ca] Converted Stats Can Boundaries files.

[Michael Barabanov]

Hi Daniel,

Are you saying that GeoBase actually contains (let's say) city
boundaries/names, and those are probably geometrically more accurate?

On Tue, Jul 27, 2010 at 7:59 AM, Bégin, Daniel <
Daniel.Begin at rncan-nrcan.gc.ca> wrote:

> I agree with Richard,
>
> Here is more information...
>
> The first Osm Canadian/Provinces/Territories boundaries were imported from
> GeoBase in 2008 - actually the original contributor just confirmed me.
>  These imported GeoBase boundaries were, and still being used, for GeoBase
> products definition - NRN, NHN, ...
>
> I understand that one of the primary objective for StatCan, creating
> similar boundaries, is to make census field work easier - not necessarily
> geometrically accurate!  So, their boundaries might be different from
> GeoBase boundaries - and Osm - because it serves another purpose.
>
> The same applies to many georeferenced StatCan products, like Road Network
> ...
>
> Regards,
>
> Daniel
>
>
>
> -----Original Message-----
> From: talk-ca-bounces at openstreetmap.org [mailto:
> talk-ca-bounces at openstreetmap.org] On Behalf Of Richard Weait
> Sent: 23 juillet 2010 12:37
> To: Talk-CA OpenStreetMap
> Subject: Re: [Talk-ca] Converted Stats Can Boundaries files.
>
> On Fri, Jul 23, 2010 at 10:50 AM, Sam Vekemans <
> acrosscanadatrails at gmail.com> wrote:
> > hi talk-ca,
> > because it is an entire complex web of relations, were 1 way has 2 or
> > more relations attached to it, i'd recomment the solution on the wiki,
> > if we want to preserve the rule that all bountaries need to be
> > relations.
> >
> > then the 1st task is the look at the povince file, and remove the
> > existing boundary data that will cause duplicate ways.
>
> I presume you mean "keep the existing data and don't use the duplicate data
> from the file."
>
> > then once each province is all clear, then 1 person can upload it all at
> once.
>
> Come on now, you aren't really suggesting removing existing boundary data
> just to add it back in, are you?  That doesn't sound very considerate of the
> previous mappers.
>
> Have you looked at the relative technical merits of the existing boundary
> data and the StatsCan data Tyler just converted?  Are they from the same
> source, or is one of provably lower quality?
>
> How about starting with a smaller test than a complete province?
> Would anyone care to take a look at their neigbourhood and the related and
> adjacent boundaries?
>
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