[Talk-ca] UBC, Vancouver orthography, and street alignment

john whelan jwhelan0112 at gmail.com
Sun Oct 31 13:04:04 GMT 2010


I was under the impression that the City of Vancouver "Open" data along with
Ottawa's and Calgary's wasn't quite open enough for OSM use.  I assume you
aligned with CANVEC data and merely visually confirmed it against
Vancouver's data?

I understand they were looking at changing the license, if you have any news
on this I'd be grateful.

Thanks John

On 31 October 2010 00:18, Paul Norman <penorman at mac.com> wrote:

> UBC in Vancouver has been suffering from issues of building misalignment
> because the Yahoo orthography is misaligned with the ground and suffers
> from
> distortion[1]. The City of Vancouver offers some mapping data [2] which can
> be used with OSM. I've taken 16 tiles that cover most of UBC and corrected
> most of the streets to these as these reflect the GPS traces, CanVec data,
> and my knowledge from being a student. They are also high resolution, being
> listed as 40cm, but I can easily make out smaller features.
>
> I've also done some micro-mapping around the SUB, Buchanan, the Chan Center
> and Rose garden, and down by CEME.
>
> As the process to convert the .ecw files is a long and computationally
> heavy
> one if anyone wants the resulting slippymap which can be used with the JOSM
> slippymap plugin and is regularly at UBC I could burn them onto a CD.
>
> I also have all of Vancouver processing to make a slippymap, but it has
> only
> been about 25 hours so it is not finished yet. If anyone wants that, it'll
> take multiple DVDs. Of course, anyone could recreate it from the downloaded
> files but anticipate gdal2tiles taking about 30-40 hours on a good
> computer.
>
> If anyone notices misaligned streets at UBC and isn't able to get the
> Vancouver orthography working I'd appreciate knowing and I can align them.
>
> [1]
> <
> http://wiki.openstreetmap.org/w/index.php?title=Canada:British_Columbia:Van
> couver&oldid=552230#University_of_British_Columbia<http://wiki.openstreetmap.org/w/index.php?title=Canada:British_Columbia:Van%0Acouver&oldid=552230#University_of_British_Columbia>
> >
> [2] <http://data.vancouver.ca/datacatalogue/>
>
>
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