[Imports] [Talk-ca] Canvec tile splitter 999x33 a to y 5x5 and/or put on a dedicated API?

Sam Vekemans acrosscanadatrails at gmail.com
Sun Mar 28 19:05:18 BST 2010


On Sun, Mar 28, 2010 at 10:42 AM, Adam Dunn <dunnadam at gmail.com> wrote:

> It is possible to use Osmosis in this way. From [1]:
> osmosis --read-xml file="Canvec092C01.osm" --bounding-box top=48.05
> bottom=48 left=-124.1 right=-124 --write-xml file="Canvec092C01A.osm"
>
> For my own work with geobase2osm.py I wrote a small bash shell script that
> will grab coordinates from Frank's site [2] and do most of the work for me,
> outputting an entire area of Geobase, as smaller files. Maybe something
> similar could be put in the toolchain for the Canvec process?
>
> [1]: http://wiki.openstreetmap.org/wiki/Osmosis#Extracting_bounding_boxes
> [2]: http://www.steggink.org/geo/nts_area/092C01A
>
>
Sweet thanks, i was just asking on the IRC about it. .. yup exactly what i
wanted. :)

and Yes, i already put a request in to NRCan CanVec, as your initial
explanation about this (a few months ago), as clear.    (but not sure if
it'll happen).  Eithor way, for the rest of the imports@ crew, it's handy
for any data source. .. since it all can be converted to .osm,  this should
be put in as a step in the imports pre-processing.   (New Zealand would like
to know this as they are in the planning stages with the LINZ data, they
have already loaded a sample area)

Cheers,
Sam

Adam
>
> On Sun, Mar 28, 2010 at 9:26 AM, Sam Vekemans <
> acrosscanadatrails at gmail.com> wrote:
>
>>  Hi all,
>> We are getting more progress on Vancouver Island, thanks to (haitelk)
>> who has just added in more wooded area. And the new CVRD data is in
>> the planning, discussing & sorting data phase. :-)
>>
>> What we still need todo is make a tool that will automatically slice
>> the NTS tiles (canvec .osm files) into 25 pieces, so then a local area
>> mapper can easly take 1 square at a time & work with it, choosing the
>> data that they need to add in.
>>
>>
>> I think that OSmosis has this ability, has anyone varified this?
>> This will be of great help to everyone, as we are also using the
>> Toporama WMS layer to be tracing & using it for reference.
>>
>> Otherwise, if we dont have the 1/25th tile area, its harder to ensure
>> that no 'bulk_implopping' happens where the user gets lazy and doesnt
>> bother to check the area 1st.
>>
>> Since the 1/25th tile size is a standard JOSM working space, we would
>> (just about all of the time), have only 1 mapper is working at a time.
>> (even in the big cities, this size is managable).
>>
>> Oh, this whole CanVec dataset would be great to host on a different
>> API, (like i talked about on my last message for OpenImportsMap does
>> anyone know if perhaps the devAPI would be a good place for it? Or
>> should we make a new one that is dedicated to wholesale imports?
>>
>> Thanks,
>> Sam
>> --
>> Twitter: @Acrosscanada
>> Blogs: http://acrosscanadatrails.posterous.com/
>> http://Acrosscanadatrails.blogspot.com
>> Facebook: http://www.facebook.com/sam.vekemans
>> Skype: samvekemans
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>> @Acrosscanadatrails
>>
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>
>
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