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?<br>
<br>I understand they were looking at changing the license, if you have any news on this I'd be grateful.<br><br>Thanks John<br><br><div class="gmail_quote">On 31 October 2010 00:18, Paul Norman <span dir="ltr"><<a href="mailto:penorman@mac.com">penorman@mac.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">UBC in Vancouver has been suffering from issues of building misalignment<br>
because the Yahoo orthography is misaligned with the ground and suffers from<br>
distortion[1]. The City of Vancouver offers some mapping data [2] which can<br>
be used with OSM. I've taken 16 tiles that cover most of UBC and corrected<br>
most of the streets to these as these reflect the GPS traces, CanVec data,<br>
and my knowledge from being a student. They are also high resolution, being<br>
listed as 40cm, but I can easily make out smaller features.<br>
<br>
I've also done some micro-mapping around the SUB, Buchanan, the Chan Center<br>
and Rose garden, and down by CEME.<br>
<br>
As the process to convert the .ecw files is a long and computationally heavy<br>
one if anyone wants the resulting slippymap which can be used with the JOSM<br>
slippymap plugin and is regularly at UBC I could burn them onto a CD.<br>
<br>
I also have all of Vancouver processing to make a slippymap, but it has only<br>
been about 25 hours so it is not finished yet. If anyone wants that, it'll<br>
take multiple DVDs. Of course, anyone could recreate it from the downloaded<br>
files but anticipate gdal2tiles taking about 30-40 hours on a good computer.<br>
<br>
If anyone notices misaligned streets at UBC and isn't able to get the<br>
Vancouver orthography working I'd appreciate knowing and I can align them.<br>
<br>
[1]<br>
<<a href="http://wiki.openstreetmap.org/w/index.php?title=Canada:British_Columbia:Van%0Acouver&oldid=552230#University_of_British_Columbia" target="_blank">http://wiki.openstreetmap.org/w/index.php?title=Canada:British_Columbia:Van<br>
couver&oldid=552230#University_of_British_Columbia</a>><br>
[2] <<a href="http://data.vancouver.ca/datacatalogue/" target="_blank">http://data.vancouver.ca/datacatalogue/</a>><br>
<br>
<br>
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</blockquote></div><br>