Re: [Talk-ca] Microsoft has released its building outlines for Canada

[Begin Daniel]

+1

Sent from Galaxy S7


From: Tim Elrick 
Sent: Tuesday, March 5, 2019 7:09:11 PM
To: James; Begin Daniel
Cc: Talk-CA OpenStreetMap
Subject: Re: [Talk-ca] Microsoft has released its building outlines for Canada

Hi Daniel and James,

Sounds good, Daniel. Looking forward to see your tool. However, the Open
Building Database data for Montreal looks pretty good in terms of number
of nodes and orthogonalization. I am still working on how to break up
the building blocks, however, with much less time on my hand than you
seem to have. I will keep you posted as soon as I had some success.

Thanks, James, for your kind offer. If we decide to import, which we
will discuss on the local list first, we then will provide an import
plan and will get back to for the technical implementation of providing
the tiles on the tasking manager.

I suggest, we continue this conversation on the Montréal list
(challenging my French capabilities).

Tim

On 2019-03-04 19:48, James wrote:
I could serve the output using the microdataservice and the osncanada
task manager(multiple tasks)

https://github.com/osmottawa/micro-data-service

On Mon., Mar. 4, 2019, 7:16 p.m. Begin Daniel, mailto:jfd...@hotmail.com>> wrote:

 Tim, 

 I have plenty of free time and I am interested in this import. I am
 about to complete a pre-processing tool that seems to
 “orthogonalize” building footprints pretty well using FME (safe
 software). I plan to present/discuss its functionalities next week
 on this list (vertex filtering, ensuring right angles, sorting
 building according to processing results, etc.). I have not examined
 how to break up building blocks into single units yet but I am
 interested to include it in the pre-processing tool if it is
 possible.

 __ __

 Daniel

 __ __

 *From:*Tim Elrick [mailto:o...@elrick.de ]
 *Sent:* Saturday, March 02, 2019 19:58
 *To:* talk-ca@openstreetmap.org 
 *Subject:* Re: [Talk-ca] Microsoft has released its building
 outlines for Canada

 __ __

 Hi Steve,

 __ __

 As for Montreal: We will create an import plan on the wiki as soon
 as we have expanded the discussion about the Montreal import from
 our local face-to-face group to the Montreal OSM list and agreed on
 importing. Before we do this, we wanted to test the feasibility of
 the pre-processing first, as it involves quite some postgis coding
 to break up the building blocks into single buildings. Only
 thereafter, we will suggest an import (or not), depending on the
 feasibility of extracting single buildings. Otherwise we will follow
 the hand-drawn approach as usual (and as it is done on a daily basis
 at the moment by a couple of OSMappers).

 __ __

 The Microsoft data set might still be useful for remote areas. Let's
 explore this altogether.

 __ __

 Cheers,

 Tim

 __ __


 On 2019-03-02 19:17, OSM Volunteer stevea wrote:

 On Mar 2, 2019, at 3:47 PM, John Whelan
  wrote:

 Two years ago a group of Toronto mappers submitted the City of
Toronto Open Data license to the LWG to see if it was acceptable.  I
assume they meant to import things such as building outlines.  I also
assumed as I think others did that this meant Toronto mappers were happy
to import the City of Toronto's data especially as it was discussed on
talk-ca first.

 Historical info is appreciated for context, however, the LWG found
Canada-wide city-by-city submissions for ODbL-compliance burdensome,
given LWG's limited bandwidth.  Assuming about events in the past is
unhelpful, first because it is assuming (seldom helpful) and second,
these events are in the past.  How Toronto imported (building) data
can't really help us first understand and second improve from what we
learn until we know what we learned.  That isn't presented here, but it
could be.

 __  __

 More recently Nate who currently lives in Toronto feels that
this should be discussed once more in Toronto to work out what is
desired etc.

 I agree with Nate.  Perhaps first in Toronto, perhaps wider in
talk-ca.  "Once more" seems limiting, though it's possible it could
suffice.

 __  __

 Tim I think is organising Montreal open data import.

 Please consider adding this (and links to user: wiki or Talk pages)
to the active Import wiki.  Generate communication using our media!

 __  __

 I note that Nate and Tim have different ideas about what should
be imported.  One is happy with bay windows and I think the other feels
they should be removed.

 More discussion often yields consensus, especially as it "goes
wide" (or as wide as is practical).

 __  __

 We also have Pierre who is unhappy because 

[Talk-ca] Northumberland county

[john whelan]

I can search in nomation for a supermarket in Ontario or Cobourg or even
greater Manchester UK but it doesn't work for Northumberland county.

Could a relation specialist take a look at Northumberland county for me
please.

Admin level 6

Thanks John
___
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Re: [Talk-ca] Microsoft has released its building outlines for Canada

[Tim Elrick]

Hi Daniel and James,

Sounds good, Daniel. Looking forward to see your tool. However, the Open 
Building Database data for Montreal looks pretty good in terms of number 
of nodes and orthogonalization. I am still working on how to break up 
the building blocks, however, with much less time on my hand than you 
seem to have. I will keep you posted as soon as I had some success.


Thanks, James, for your kind offer. If we decide to import, which we 
will discuss on the local list first, we then will provide an import 
plan and will get back to for the technical implementation of providing 
the tiles on the tasking manager.


I suggest, we continue this conversation on the Montréal list 
(challenging my French capabilities).


Tim

On 2019-03-04 19:48, James wrote:
I could serve the output using the microdataservice and the osncanada
task manager(multiple tasks)

https://github.com/osmottawa/micro-data-service

On Mon., Mar. 4, 2019, 7:16 p.m. Begin Daniel, mailto:jfd...@hotmail.com>> wrote:

Tim, 

I have plenty of free time and I am interested in this import. I am
about to complete a pre-processing tool that seems to
“orthogonalize” building footprints pretty well using FME (safe
software). I plan to present/discuss its functionalities next week
on this list (vertex filtering, ensuring right angles, sorting
building according to processing results, etc.). I have not examined
how to break up building blocks into single units yet but I am
interested to include it in the pre-processing tool if it is
possible.

__ __

Daniel

__ __

*From:*Tim Elrick [mailto:o...@elrick.de ]
*Sent:* Saturday, March 02, 2019 19:58
*To:* talk-ca@openstreetmap.org 
*Subject:* Re: [Talk-ca] Microsoft has released its building
outlines for Canada

__ __

Hi Steve,

__ __

As for Montreal: We will create an import plan on the wiki as soon
as we have expanded the discussion about the Montreal import from
our local face-to-face group to the Montreal OSM list and agreed on
importing. Before we do this, we wanted to test the feasibility of
the pre-processing first, as it involves quite some postgis coding
to break up the building blocks into single buildings. Only
thereafter, we will suggest an import (or not), depending on the
feasibility of extracting single buildings. Otherwise we will follow
the hand-drawn approach as usual (and as it is done on a daily basis
at the moment by a couple of OSMappers).

__ __

The Microsoft data set might still be useful for remote areas. Let's
explore this altogether.

__ __

Cheers,

Tim

__ __


On 2019-03-02 19:17, OSM Volunteer stevea wrote:

On Mar 2, 2019, at 3:47 PM, John Whelan 
  wrote:


Two years ago a group of Toronto mappers submitted the City of 
Toronto Open Data license to the LWG to see if it was acceptable.  I 
assume they meant to import things such as building outlines.  I also 
assumed as I think others did that this meant Toronto mappers were happy 
to import the City of Toronto's data especially as it was discussed on 
talk-ca first.


Historical info is appreciated for context, however, the LWG found 
Canada-wide city-by-city submissions for ODbL-compliance burdensome, 
given LWG's limited bandwidth.  Assuming about events in the past is 
unhelpful, first because it is assuming (seldom helpful) and second, 
these events are in the past.  How Toronto imported (building) data 
can't really help us first understand and second improve from what we 
learn until we know what we learned.  That isn't presented here, but it 
could be.


__  __

More recently Nate who currently lives in Toronto feels that 
this should be discussed once more in Toronto to work out what is 
desired etc.


I agree with Nate.  Perhaps first in Toronto, perhaps wider in 
talk-ca.  "Once more" seems limiting, though it's possible it could 
suffice.


__  __

Tim I think is organising Montreal open data import.

Please consider adding this (and links to user: wiki or Talk pages) 
to the active Import wiki.  Generate communication using our media!


__  __

I note that Nate and Tim have different ideas about what should 
be imported.  One is happy with bay windows and I think the other feels 
they should be removed.


More discussion often yields consensus, especially as it "goes 
wide" (or as wide as is practical).


__  __

We also have Pierre who is unhappy because the imported 
building outlines available have too many corners that are not right 
angles.


More discussion often yields consensus.

__  __

The local Ottawa mappers are content with their Open Data 
import and find the data quality 

[Talk-ca] Échangeur Turcot - Montréal

[Alouette955]

Bonjour,

J’ai eu à travailler des relations de ligne d’autobus entre le centre-ville de 
Montréal (Terminus Mansfield) et le sud-ouest (Châteauguay, Beauharnois et 
Valleyfield). Ces lignes d’autobus traversent l’échangeur Turcot. 

J’ai les trajets dans les fichiers GTFS de EXO (avec leur permission) mais il 
est impossible de les tracer dans les relations, ces trajets se trouvant “dans 
le vide” c’est à dire qu’ils se trouvent sur des chemins n’existant pas 
(encore) dans OSM ou même en plein chantier, peut-être même sur des routes 
temporaires. Ces relations quasi invisibles sont souvent ignorées dans le 
fouillis des modifications exigés ici.

J’ai donc décidé d’attendre que OSM reflète la nouvelle réalité ... ce qui 
devrait arriver en parallèle avec l’avancement des travaux.

J’aimerais donc savoir s’il y a un groupe de contributeurs organisé à Montréal 
qui suit ce chantier (je sais que certains éditent cette partie de la carte et 
bravo à eux parce que ce n’est pas évident). J’aimerais me tenir au courant du 
moment où OSM reflètera les tracés définitifs de l’échangeur. Je corrigerais 
alors les relations de façon définitive espérant que EXO fasse de même dans les 
fichiers GTFS.

Je ne m’attends surtout pas que ce groupe, s’il existe, se tape les relations 
de transport public. Ça demande une certaine expertise et l’analyse des 
informations de EXO.

Merci,

Claude___
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