[Talk-ca] Next road import area

Sam Vekemans acrosscanadatrails at gmail.com
Sun Mar 29 23:33:57 BST 2009


I have the area of Stonewall, MB prepared as a sample, as well as
Selkirk, MB as i presume you might be familiar with that area too.

http://sites.google.com/a/acrosscanadatrails.com/www/Home/osmcanvec_062i02_shpSelkirkMB.zip
http://sites.google.com/a/acrosscanadatrails.com/www/Home/extracanvec_062i02_shpSelkirkMB.zip
http://sites.google.com/a/acrosscanadatrails.com/www/Home/extracanvec_062i03_shpStonewallMB.zip
http://sites.google.com/a/acrosscanadatrails.com/www/Home/osmcanvec_062i03_shpStonewallMB.zip

Hopefully you'll find some tags that needs to be corrected.

Cheers,
Sam Vekemans
Across Canada Trails

On Sat, Mar 28, 2009 at 7:13 PM, Sam Vekemans
<acrosscanadatrails at gmail.com> wrote:
> Hi, my guess is that you were tracing the CanVec Roads from the .zip
> file i sent you?
>
> If so, the reason it's still in Beta Phase, is that it needs to show
> "source=" tags, so people who where you got the data from.  Also,
> keeping all the UUID tags is important.
>
> For the GeoBase2osm script, that's Steve Singer, and it's best to be
> updating the chart as you go along.
> http://wiki.openstreetmap.org/wiki/Geobase_NRN_-_OSM_Map_Feature
> and following the instructions listed.
>
> I havent yet started actually importing any of the data from these
> sample files (canvec2osm or geobaseNHN2osm) because the source tags
> all need to be right.  I chose "attribution=Natural Resources Canada"
> but not sure if it's going to stay like that.
>
> Also, by signing up as a new user (prefixed with "geobase:"), it make
> it easier if the data needs to be removed.
>
> The geobaseNHN2osm (National Hydro Network) is still in beta phase, i
> should have a sample are posted this week, so people can check the
> source tags.
>
> And the canvec2osm script is also still in Beta, this is because the
> tags still need to be perfected.  (it doesn't make sence to start
> importing when the tags are not yet correct)... it would mean ALOT of
> manual re-tagging features.
>
> Cheers,
> Sam
>
> P.S. (for everyone) would it be better if I not include conversion of
> the CanVec Roads as part of my script (so then it's only the
> geobase2osm python script that is handling roads?)  ... will this
> avoid the confusion???
>
>
> On Sat, Mar 28, 2009 at 5:53 PM, Jonathan Stewart
> <jonathan.stewart at gmail.com> wrote:
>> Hi Sam,
>>
>> Thought you might want to see some of the results of making that
>> Geobase data available to me in a format JOSM can use.
>>
>> Here is a section of the city which i had partially mapped with GPS
>> traces and my bike, but using the geobase data, i was able to fill it
>> in much more:
>> http://www.informationfreeway.org/?lat=49.924120297834754&lon=-97.0929286760268&zoom=15&layers=B0000F000F
>>
>> My friend lives in Stonewall, which is north of winnipeg, and we were
>> wondering if we could get data for areas north of the city, which we
>> could tag and verify, etc. Is this geobaseNRN2osm script public? Is it
>> easy to use, could i generate some areas of my own with geobase data?
>>
>> Thanks,
>> Jonathan
>>
>> On Thu, Mar 26, 2009 at 12:17 AM, Jonathan Stewart
>> <jonathan.stewart at gmail.com> wrote:
>>> Oh Wow.  Sam, this is great.
>>>
>>> I am just exploring all the data you gave me, which is tons.  I love
>>> all the hydrological data.  The amenities are pretty amazing, too.  I
>>> just found shapes, too!  Like, shapes of buildings.  Not the best
>>> quality of data (even official sources are made by humans, right? ;)
>>> but it's still pretty good.  The buildings seem to be offset south by
>>> about 5 or 10 metres, but they are certainly there, and accurate
>>> overall.
>>>
>>> I overlaid the OSM data on the NRN road data that was also there.
>>> Very very close match, thought OSM data is better in many cases.  My
>>> real GPS traces are more accurate than the official map, which seems
>>> good to me. ;)
>>>
>>> I am still exploring, but overall, this is really great stuff.  Allows
>>> me to skip the conversion step, and go right to mapping using JOSM,
>>> which is fairly easy, even for new users.
>>>
>>> How do you envision the data import?  Manual tracing and labelling
>>> using JOSM?  I did just add a building to OSM based on the CanVec
>>> data, by just tracing, which works well.  Very manual, but then you
>>> have the sanity check of a human operator adding the data, not an
>>> automated script which can create corrupted data, like is an issue in
>>> Alberta right now.
>>>
>>> That's my thoughts so far.  Big thumbs up!
>>>
>>> Jonthan
>>>
>>> On Wed, Mar 25, 2009 at 3:41 PM, Sam Vekemans
>>> <acrosscanadatrails at gmail.com> wrote:
>>>> Hi,
>>>>
>>>>>> Oops, spoke too soon (i put a note on your wiki page)
>>>>> Oh yes, you did.  Read this email first. :)
>>>>
>>>> There is always a delay in getting the talk-ca digest :(
>>>>
>>>>>> How about Northern Winnipeg?
>>>>> I don't quite follow.  It seems what i want is to be able to import
>>>>> the NHN data into OpenJUMP, so that i can run a compare. So i need a
>>>>> way to convert OSM to the same format SHP as i get from NRN. Is that
>>>>> not right?
>>>>>
>>>>> What would the data from geobaseNHN2osm give me?
>>>>
>>>> I should really name the file geobaseNHN-to-osm because it skips that
>>>> step. In stead of converting the existing osm data to SHP, i convert
>>>> the GeoBaseNHN shp files to osm format, so then they can be
>>>> individually viewed in JOSM. .. 15 separate .osm files get created.
>>>> One of which is the boundary polygon.
>>>>
>>>> What i want todo is make the script as simple as possable, so then
>>>> anyone can run the script, as it requires attention to detail with
>>>> manual scanning the area to see how it matches up.   Ie.  in some
>>>> cases rivers were drawn in, but at a higher/lower detail.. so then the
>>>> mapper who actually drew in that river would get to decide on what to
>>>> include/exclude.
>>>>
>>>> Unlike the roads, there are many different features, and the level of
>>>> mapping detail varies from mapper to mapper.
>>>>
>>>> Also (but this isn't an excuse) as i dont know how to convert the OSM
>>>> data area to SHP format, and use the AutoMatch feature.  I think that
>>>> going this manual route with the easier option will take more time..
>>>> BUT will ensure that all the features get imported, and that there
>>>> will be no duplicate nodes/lines/areas as a result.
>>>>
>>>>>
>>>>> And as for what area of Winnipeg I am familiar with... I suppose the
>>>>> central area, which is where I live.  Which also has some of the best
>>>>> maps, cause I made a lot of them over the summer on my bike, which was
>>>>> pretty fun.  Still snowing and terrible weather here, though.
>>>>>
>>>>>> For the CanVec2osm script, i'm still going through all the features,
>>>>>> and trying to get them all matched up, and will also have a sample
>>>>>> ready soon.  Hopefully within the next 2 weeks, i should have a sample
>>>>>> area for this one also, so people can see how it gets rendered, and
>>>>>> spot errors in the tagging.  So i can also create a sample area for
>>>>>> Winnipeg also if you like.
>>>>> Oh wow, CanVec data (which i just read about
>>>>> http://wiki.openstreetmap.org/wiki/CanVec_OSM_Map_Features) seems
>>>>> really cool.  Lots of detail, if it's as good as what's advertised.
>>>>> Go ahead and hit me with a sample.
>>>>>
>>>>
>>>> the sample CanVec area is availble to download from here:
>>>> http://sites.google.com/a/acrosscanadatrails.com/www/Home/extracanvec_062h14_shpwinnipeg.zip
>>>> http://sites.google.com/a/acrosscanadatrails.com/www/Home/osmcanvec_062h14_shpwinnipeg.zip
>>>> As well as the GeoBaseNHN is available from here.
>>>> http://sites.google.com/a/acrosscanadatrails.com/www/Home/extranhn_rhn_05mj000_shp_enwinnipeg.zip
>>>> http://sites.google.com/a/acrosscanadatrails.com/www/Home/osmNHNnhn_rhn_05mj000_shp_enwinnipeg.zip
>>>>
>>>> The polygon area shape file is in the 'extra' folder, and these 2
>>>> areas overlap over winnipeg.
>>>>
>>>> So you can see what there is available.
>>>>
>>>> i also have the NRN roads available in the Extra folder of the CanVec
>>>> set, so you can get an idea of what roads are available.
>>>>
>>>>> And yes, I understand the desire to get the data working well before
>>>>> we import it.  At this point i was just at the experimentation stage,
>>>>> to see if i could actually help with data importing and verification
>>>>> and stuff.  I have a couple of friends involved in this too. One is
>>>>> just north of Winnipeg (stonewall) and another is in Burnaby.  We are
>>>>> all pretty keen on OSM, and are looking to see how we can help and
>>>>> improve it.
>>>>>
>>>>> Cheers,
>>>>> Jonathan
>>>>>
>>>>
>>>> Hopefully you'll be able to spot some errors and point them out.
>>>>
>>>> Thanks,
>>>> Sam Vekemans
>>>> Across Canada Trails
>>>>
>>>
>>>
>>>
>>> --
>>>     Jonathan
>>>
>>
>>
>>
>> --
>>     Jonathan
>>
>




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