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

Sam Vekemans acrosscanadatrails at gmail.com
Sun Oct 31 13:25:19 GMT 2010

were still waiting for OpenStreetMap to change it's licence :)
but anyway, geocommons.com is a good temporary home for the p files :)
and having the data on standby just waiting to use used is helpfull.


On 10/31/10, john whelan <jwhelan0112 at gmail.com> wrote:
> 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
>> 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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