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

Mon Nov 1 17:32:27 GMT 2010

Just to clarify - are we allowed to use the BC orthophotos now as well? Also
I might stick the converted Vancouver ortho GeoTIFFs on my web hosting
account if they are in demand.

Russell

On 2010-11-01, at 10:26 AM, Adam Dunn <dunnadam at gmail.com> wrote:

Here's the NRN (6.0, but I see 7.0 is now available on the NRN website)
092G06C file that I used for import, if you want that as a reference. Some
of the NRN roads (remember this is version 6) were out of date (like the
Iona Drive/Theology area). I didn't actually import much from NRN, since
most roads were already done and other roads were out of date.

Yahoo is definitely off in the north end of campus, but near Fairview it's
fairly good.

That 100mm orthophoto is pretty good. Not only is it high resolution, but
it's fairly recent. The Marine Drive Commons Block is still under
construction, but the brick pathways have been laid - this puts the photo at
around March/April/May of 2009. It looks like they still have the sprinkler
system piping laid out on the ground, but my memory is hazy on when that was
installed.

Adam

On Mon, Nov 1, 2010 at 9:06 AM, Tonkin, Bruce ILMB:EX <
Bruce.Tonkin at gov.bc.ca> wrote:

> Paul,
>
> To verify your data you could also use the Province of BC's WMS
> Services. Here are two that you may find useful for the UBC Area.
>
> Road Network:
> http://openmaps.gov.bc.ca/mapserver/base2?service=WMS&REQUEST=GetMap&SER
> VICE=WMS&VERSION=1.1.1&LAYERS=DRA_DIGITAL_ROAD_ATLAS_LINE_SP&STYLES=&FOR
> MAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&SRS=EPSG:4326&BBOX=-123.
> 265021881044,49.2499715666015,-123.232373077585,49.2776350737241&WIDTH=1
> 002&HEIGHT=849<http://openmaps.gov.bc.ca/mapserver/base2?service=WMS&REQUEST=GetMap&SER%0AVICE=WMS&VERSION=1.1.1&LAYERS=DRA_DIGITAL_ROAD_ATLAS_LINE_SP&STYLES=&FOR%0AMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&SRS=EPSG:4326&BBOX=-123.%0A265021881044,49.2499715666015,-123.232373077585,49.2776350737241&WIDTH=1%0A002&HEIGHT=849>
>
> 100mm Orthophoto:
> http://openmaps.gov.bc.ca/imagex/ecw_wms.dll?REQUEST=GetMap&SERVICE=WMS&
> VERSION=1.1.1&LAYERS=REGIONAL_MOSAICS_BC_GVRD_WEST_XC100MM_UTM10_2009&ST
> YLES=&FORMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&SRS=EPSG:4326&B
> BOX=-123.27242922767,49.2358356991024,-123.218014555238,49.2819415443068
> &WIDTH=1002&HEIGHT=849<http://openmaps.gov.bc.ca/imagex/ecw_wms.dll?REQUEST=GetMap&SERVICE=WMS&%0AVERSION=1.1.1&LAYERS=REGIONAL_MOSAICS_BC_GVRD_WEST_XC100MM_UTM10_2009&ST%0AYLES=&FORMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE&SRS=EPSG:4326&B%0ABOX=-123.27242922767,49.2358356991024,-123.218014555238,49.2819415443068%0A&WIDTH=1002&HEIGHT=849>
>
>
> Thanks,
>
> Bruce Tonkin
>
> -----Original Message-----
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>   1. UBC, Vancouver orthography, and street alignment (Paul Norman)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 30 Oct 2010 21:18:03 -0700
> From: "Paul Norman" <penorman at mac.com>
> To: <talk-ca at openstreetmap.org>
> Subject: [Talk-ca] UBC, Vancouver orthography, and street alignment
> Message-ID: <000301cb78b2$9c973c60$d5c5b520$@mac.com>
> Content-Type: text/plain;       charset="us-ascii"
>
> 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>
> [2] <http://data.vancouver.ca/datacatalogue/>
>
>
>
>
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