Une carte détaillée est aussi disponible à partir des liens reçus plus tot.voir
https://open.canada.ca/data/en/fgpv_vpgf/7a5cda52-c7df-427f-9ced-26f19a8a64d6
Dans le cas de désastres, cette information est sûrement utile notamment pour
localiser les habitations isolées, les zones inondables. Une grande partie du
bassin de la rivière Outaouais est déja couverte.
Mais pour l'import dans OSM, il nous reste d'abord à évaluer la qualité des
données et corriger si nécessaire.
Pierre
Le samedi 27 avril 2019 14 h 12 min 59 s UTC−4, François Paquette
<[email protected]> a écrit :
HI
>From NRCan web site
>https://www.nrcan.gc.ca/earth-sciences/geography/topographic-information/free-data-geogratis/whats-new/21747
“Natural Resources Canada is pleased to announce its new data layer on
OpenMaps. The richness of this new data layer comes from information on height
and elevation of the buildings that will help support Canadian governments
priorities such as emergency management, particularly for flood and earthquake
risk analysis. This release contains close to 1 million building footprints. We
will expand this coverage as more LiDAR data becomes available over Canada.”
See the Lidar coverage (in green)
https://www.nrcan.gc.ca/earth-sciences/geography/topographic-information/free-data-geogratis/whats-new/21742
NRCan will continu to add new building
Thank you
François Paquette
De : keith hartley [mailto:[email protected]]
Envoyé : samedi 27 avril 2019 10:54
À : John Whelan
Cc : Alessandro (STATCAN); Talk-CA OpenStreetMap
Objet : Re: [Talk-ca] NRC building footprints - from lidar
I think its where there's good lidar data and imagry for extraction in selected
parts of Canada. The extents are here
https://open.canada.ca/data/en/fgpv_vpgf/7a5cda52-c7df-427f-9ced-26f19a8a64d6
MB, Nova Scotia, Alberta and BC
May want to update the building import project as this is a really good source!
On Sat, Apr 27, 2019 at 9:42 AM John Whelan <[email protected]> wrote:
Is it just Manitoba or all of Canada?
In which case do we want to revise the building import project.
Thanks John
keith hartley wrote on 4/27/2019 9:56 AM:
Hi all,
Canadian Geomatics posted this data set a few months back from Natural Resource
Canada.
It's Building footprints from Lidar or high res imagery.
https://canadiangis.com/automatically-extracted-buildings-canadian-open-data.php?fbclid=IwAR22SaWwz7--LarDksVfcQuZ9RDgkVc421n9saJ_Lv8r6xq1qPSrouEF0Ww
https://open.canada.ca/data/en/dataset/7a5cda52-c7df-427f-9ced-26f19a8a64d6
>From what I can tell when placing the data over imagery it's very bang on.
>Highly accurate, good shapes (unlike the bing files) and well placed. As far
>as I can tell no one else has uploaded these to OSM. The areas in manitoba are
>mainly where there's little to no other building info.
I can write an upload plan on Manitoba wiki as the data is complaint license
wise. Anything else I should be looking for? The local mappers here are pretty
excited about it.
Keith
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