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

Adam Dunn dunnadam at gmail.com
Sun Mar 28 18:42:00 BST 2010


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

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
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>
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