date:20190427

Re: [Talk-ca] NRC building footprints - from lidar

2019-04-27 Thread Tim Elrick

Hi all,

All those new sources are really exciting! Thanks for making us aware of
the data, Keith!

I just checked the NRCan LiDAR building footprints for Montreal [1].
Unfortunately, they seem to have the same flaws as the Microsoft
building footprints. The data quality for Montreal cannot keep up with
the building footprints in the Open Building Database released by
StatCan - it probably has to do with the altitude the LiDAR sensor was
flown over the surface, as the OBD data for Montreal was also derived
from LiDAR (but probably flown at a much lower altitude, hence a much
more detailed result).

As with the Microsoft building dataset the NRCan data set is probably
useful for emergency services and desaster relief organisations that
only need to know the existence of buildings in an area, but not the
exact shape. I doubt it can be used for import into OSM, however, as
already stated in another e-mail, in remote areas it still might be good
enough - I guess, it all depends on how you read the 'ground truth
principle' and other 'mapping rules' in the OSM cosmos.

Like Pierre, Daniel and Nate have shown for the OBD data the NRCan data
should at least be simplified and orthogonalized if deemed appropriate
for importing.

Cheers,
Tim

[1] https://imgur.com/a/4eKDpcj

On 2019-04-27 09:56, keith hartley wrote:
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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Re: [Talk-ca] NRC building footprints - from lidar

2019-04-27 Thread Pierre Béland via Talk-ca

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
a écrit :

>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:keith.a.hart...@gmail.com]
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 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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Re: [Talk-ca] NRC building footprints - from lidar

2019-04-27 Thread François Paquette

>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

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 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.

https://open.canada.ca/data/en/dataset/7a5cda52-c7df-427f-9ced-26f19a8a64d6

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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[Talk-ca] weeklyOSM #457 2019-04-16-2019-04-22

2019-04-27 Thread weeklyteam

The weekly round-up of OSM news, issue # 457,
is now available online in English, giving as always a summary of all things 
happening in the openstreetmap world: http://www.weeklyosm.eu/en/archives/11968/

Enjoy! 

Did you know that you can also submit messages for the weeklyOSM? Just log in 
to https://osmbc.openstreetmap.de/login with your OSM account. Read more about 
how to write a post here: 
http://www.weeklyosm.eu/this-news-should-be-in-weeklyosm 

weeklyOSM? 
who: https://wiki.openstreetmap.org/wiki/WeeklyOSM#Available_Languages 
where?: 
https://umap.openstreetmap.fr/en/map/weeklyosm-is-currently-produced-in_56718#2/8.6/108.3
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[Talk-ca] weeklyOSM #457 2019-04-16-2019-04-22

2019-04-27 Thread weeklyteam

The weekly round-up of OSM news, issue # 457,
is now available online in English, giving as always a summary of all things 
happening in the openstreetmap world: http://www.weeklyosm.eu/en/archives/11906/

Enjoy! 

Did you know that you can also submit messages for the weeklyOSM? Just log in 
to https://osmbc.openstreetmap.de/login with your OSM account. Read more about 
how to write a post here: 
http://www.weeklyosm.eu/this-news-should-be-in-weeklyosm 

weeklyOSM? 
who: https://wiki.openstreetmap.org/wiki/WeeklyOSM#Available_Languages 
where?: 
https://umap.openstreetmap.fr/en/map/weeklyosm-is-currently-produced-in_56718#2/8.6/108.3
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Re: [Talk-ca] NRC building footprints - from lidar

2019-04-27 Thread keith hartley

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  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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>
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Re: [Talk-ca] NRC building footprints - from lidar

2019-04-27 Thread John Whelan


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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[Talk-ca] NRC building footprints - from lidar

2019-04-27 Thread keith hartley

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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Re: [Talk-ca] NRC building footprints - from lidar

Re: [Talk-ca] NRC building footprints - from lidar

Re: [Talk-ca] NRC building footprints - from lidar

[Talk-ca] weeklyOSM #457 2019-04-16-2019-04-22

[Talk-ca] weeklyOSM #457 2019-04-16-2019-04-22

Re: [Talk-ca] NRC building footprints - from lidar

Re: [Talk-ca] NRC building footprints - from lidar

[Talk-ca] NRC building footprints - from lidar

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