Re: [Talk-ca] Callsigns...

2013-03-10 Thread nicholas ingalls
Well the first challenge would be putting multiple tags on the same way.
Personally I would create multiple relations using the same way, each
relation having one call-sign. I have heard other people suggest separating
values with commas but I don't like that idea because if for example you
want to put the frequency and the name, if the values are separated by
commas there is no way to match the frequency to the specific name. A
relation would allow you to do this.  (Obviously this is my own opinion 
up for argument)

In terms of a tagging scheme

http://wiki.openstreetmap.org/wiki/Key:frequency for the frequency
name:xxx for the name of the station
http://wiki.openstreetmap.org/wiki/Operator for the operator
Might have to propose some tags for the others


On Sun, Mar 10, 2013 at 8:28 PM, Colin McGregor colin.mc...@gmail.comwrote:

 For various reasons I've taken an interest in the locations of TV (and
 to a lesser degree radio) station transmitter sites (the studios often
 being a number of km. from the transmitter location(s)).

 Is there a standard way to enter this into Open Street Map?

 A specific example that I am interested in is the CN Tower, which I
 would gather from Wikipedia
 (http://en.wikipedia.org/wiki/CN_Tower#Television_broadcasters) is
 home to 7 different TV station transmitters, 10 FM broadcast
 transmitters, plus several utility broadcasters (cell phone, pager
 services, among others). This past weekend I did add the tag
 tower:type communications to the CN Tower, but I want to add the
 station transmitter information...

 Thanks.


 Colin McGregor

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[OSM-talk] User spamming diary page

2013-03-06 Thread nicholas ingalls
http://www.openstreetmap.org/user/iwonapavlov/diary

appears to be a spammer.

Just created an account and started creating diary posts to gambling sites.

Cheers,
Ingalls
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Re: [Talk-ca] New Bing imagery in Montreal

2013-03-03 Thread nicholas ingalls
You are lucky then. Just the other day Saint John  area got updated with
stuff from late 2012. its great that they are getting around to updating it
but the imagery is more oblique than vertical making it very difficult to
trace. As well they are really low quality compared to their predecessors.
The new ones are faded out where the old ones were sharp and colourful.
These look like an instagrammer got at them!




On Sun, Mar 3, 2013 at 1:44 PM, Harald Kliems kli...@gmail.com wrote:

 Oh, nevermind. This appears to depend on the zoom level. If you zoom
 in further you still get the good 2006/2007 pictures. Nonetheless I
 think the 2011 data must have been added fairly recently.
  Harald.

 On Sun, Mar 3, 2013 at 12:43 PM, Harald Kliems kli...@gmail.com wrote:
  Hey everyone,
  I've just noticed that the Bing aerial imagery in my neighborhood has
  changed. We used to have pretty good images but they were from 2007.
  While doing some edits I noticed that the quality suddenly has gotten
  much worse and looking at the tile info it now shows that the imagery
  is from 2011. It seems to be only small patches, however, as you can
  see if you download this area in JOSM and look at the imagery
  http://osm.org/go/cIrM_9DE1-- I'm reasonably sure that this was not
  the case up until two weeks ago. Anybody else notice any Bing changes
  in their areas?
 
   Harald.
 
  --
  Please use encrypted communication whenever possible!
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[OSM-talk] License Review

2013-02-22 Thread nicholas ingalls
Hello all,

Just want an opinion from someone a bit more knowledgeable in the field
of license compatibility. In Canada, New Brunswick, Service New Brunswick
has a vast amount of geodetic data that could be very useful to OSM. Most
notably a province wide address database. Just wondering if someone could
read through this -
http://geonb.snb.ca/downloads/documents/geonb_license_e.pdf and give me
their opinion.

Cheers,
ingalls
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Re: [OSM-talk] Revert ?

2013-02-04 Thread nicholas ingalls
On Mon, Feb 4, 2013 at 7:38 PM, Vincent Pottier vpott...@gmail.com wrote:

 t it be reverted ?
 Does somebody can do it ?


Can you provide a link or a changeset id?

Cheers,
ingalls
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Re: [Talk-ca] Forests and water multipolygons in Canvec

2013-02-03 Thread nicholas ingalls
That's typically what I do as well. I've noticed the same problem
throughout much of the canvec data I've worked with.

Cheers,
ingalls


On Wed, Jan 30, 2013 at 11:26 PM, Sam Dyck samueld...@gmail.com wrote:

 Hi

 I'm currently working on importing Canvec tile 063I05. I noticed that the
 islands in the Nelson River (of which there are many) have the forest area
 offset significantly from the inner way for water. This means that the area
 boundaries are offset, even though the geometry is almost identical, This
 creates forests that stretch several metres into the Nelson.

 I've been deleting the forest areas and adding forest tagging into the
 water areas, which is probably better than the two identical ways sharing
 nodes approach usually seen in Canvec data. The offset appears consistent,
 so I thought it should be noted in case it can be fixed.


 Sam

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Re: [Talk-ca] Sidewalks

2013-02-01 Thread nicholas ingalls
My personal preference is to enable the JOSM sidewalk style and then use
the sidewalk:right sidewalk:left, sidewalk:both, or sidewalk:none tags on
the actual street. The footpaths are just about useless (as in the example
above) as they are not related to the street in anyway. So the routing
engine couldn't say turn left onto Maple Street. It could only  say turn
left. If the tags are on the actual street and not separately mapped, it is
much easier for a routing engine.

http://josm.openstreetmap.de/wiki/Styles/Sidewalks

Cheers,
ingalls


On Tue, Jan 29, 2013 at 10:18 PM, Harald Kliems kli...@gmail.com wrote:

 Personally I don't map sidewalks like that but I respect local
 mappers' work and would not change this, as it isn't really wrong. I
 don't think there's a strong consensus to map sidewalks merely as
 attributes of the adjoining road, and there are a lot of problems with
 that approach, too. E.g. how to mapp accessibility features like curb
 cuts or the need to chop ways into tiny segments in cases where
 sidewalks appear and disappear.
 Cheers,
  Harald.


 On Tue, Jan 29, 2013 at 8:10 PM, Connors, Bernie (SNB)
 bernie.conn...@snb.ca wrote:
  I came across this when I was working on Map Roulette connectivity
  corrections –
 
 
 http://www.openstreetmap.org/?lat=42.98773840069771lon=-81.24551922082901zoom=18
 
 
 
  I thought it was not advised to digitize sidewalks along urban streets –
 Are
  there any other opinions on this?
 
 
 
  --
 
  Bernie Connors, P.Eng
 
  bernie.conn...@unb.ca
 
  New Maryland, NB
 
 
 
 
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Re: [Talk-ca] Fredericton WMS Offset

2013-01-08 Thread nicholas ingalls
Hello!

Yes I'm going to be moving to fredericton for university in a short time so
I thought it would be nice to get building polygons so I can easily add
addresses from foot surveys. Is the data that SNB (You and your
co-workers) provide available for use with OSM? As in is it possible to
trace off the aerial imagery? I've often lamented the fact that the GeoNB
viewer has excellent aerial imagery for much of the province while bing
imagery is terrible outside major cities. If it is avaliable is it possible
to get it as a WMS layer for JOSM? I've looked into the ArcGIS rest APIs
but they don't seem very friendly with JOSM.

In reference to the orientation problems, I generally orient according to
gps tracks and I also use the road centre lines from the fredericton open
data portal to ensure areas are correct. (I know the data hasn't been
cleared to use, I simply use it to check the bing imagery)

Cheers,
ingalls


On Mon, Jan 7, 2013 at 3:32 PM, Connors, Bernie (SNB) bernie.conn...@snb.ca
 wrote:

 Atmospheric errors are likely to small to be detected by your consumer
 grade GPS.  Satellite geometry and the number of visible satellites would
 have more of an effect and this varies constantly as the satellites transit
 across the sky and as you experience varying satellite visibility as you
 move past obstructions (buildings, trees, bridges, hills, etc.

 ** **

 Bernie.

 --

 Bernie Connors, P.Eng

 bernie.conn...@unb.ca

 New Maryland, NB

 ** **

 *From:* nicholas ingalls [mailto:nicholas.inga...@gmail.com]
 *Sent:* Thursday, 2013-01-03 15:24
 *To:* Andrew Buck; talk-ca@openstreetmap.org

 *Subject:* Re: [Talk-ca] Fredericton WMS Offset

 ** **

 Yeah I did a bit more research afterwards to double check, including going
 and getting gps more gps traces and the current (Bing) imagery appears to
 be dead on. I also checked it with some centre lines from another data
 source (Not importing just to check the imagery) and they also verified
 that the Bing imagery is correct.

 ** **

 Thanks for the feedback! I hadn't thought about the atmospheric
 interference. 

 ** **

 Cheers,

 ingalls

 ** **

 On Wed, Jan 2, 2013 at 3:59 PM, Andrew Buck andrew.r.b...@gmail.com
 wrote:

 Hi,

 I am not from the area, but I did want to post my 2 cents about this
 issue.  Your idea of how the offset got started sounds correct.  I
 would caution you though that GPS traces can be offset, too, due to
 atmospheric effects.  To really get a good trace with no offset you
 need to do a few traces on different days of the same road (or path is
 better since it is narrow) and through an area with few buildings
 around as these can cause offsets, too.

 Other than those issues, if you trust your traces then I see no reason
 not to fix the offset, but as I said make sure your traces are good
 first.

 -AndrewBuck

 ** **

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Re: [Talk-ca] Fredericton WMS Offset

2013-01-08 Thread nicholas ingalls
 What is the official word on the practice of checking non-approved
 data sources, not for inclusion in OSM, but to ensure what is being
 included is correct?


That is honestly a good question! I guess to me this would be a bit of a
grey area, nowhere is the practice explicitly mentioned. I agree with you
on the google example, that would certainly be crossing the line. I hadn't
considered this a violation as before I used the data to align the Bing
imagery I checked the license for the data. Aligning imagery certainly fit
within the license. This is actually the first time I have done this and I
thought of it more as a separate process than adding data to OSM. At no
point was the fredericton data and the osm data loaded at the same time,
and no offset data was derived from the fredericton data. It was simply
used to see if the bing offset was correct. It was not used to create a new
offset in order to draw osm data.

I have to believe that that the process I used would be correct or else
sites like geofabrik compare would be in violation of the license. If I had
used the fredericton data to create a new offset I could see there being a
problem but this was not the case, the fredericton data was simply used to
verify the bing imagery.

tl;dr No offset was derived from the Fredericton data, it was simply used
to check the Bing imagery.

That's my two cents.
ingals
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Re: [OSM-talk] Rendering of Farmland not 'Light' enough?

2013-01-07 Thread nicholas ingalls
I second that it should stay brown! There are way to many green objects and
we don't want it confused with the grass tag. My vote would be to play
around with the brown color. I certainly agree that it currently isn't the
best.

Cheers,
ingalls


On Sun, Jan 6, 2013 at 11:01 AM, Lennard l...@xs4all.nl wrote:

 On 6-1-2013 15:51, Dave F. wrote:

  On a related topic; if a field has a barrier tag it changes colour
 rendering at zoom 16:


 That's because having a landuse on it as well pushes it into the polygon
 table. It's subsequently rendered as a barrier area, ie. with the
 barrier=hedge fill.


 --
 Lennard



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Re: [Talk-ca] Fredericton WMS Offset

2013-01-03 Thread nicholas ingalls
Yeah I did a bit more research afterwards to double check, including going
and getting gps more gps traces and the current (Bing) imagery appears to
be dead on. I also checked it with some centre lines from another data
source (Not importing just to check the imagery) and they also verified
that the Bing imagery is correct.

Thanks for the feedback! I hadn't thought about the atmospheric
interference.

Cheers,
ingalls


On Wed, Jan 2, 2013 at 3:59 PM, Andrew Buck andrew.r.b...@gmail.com wrote:

 Hi,

 I am not from the area, but I did want to post my 2 cents about this
 issue.  Your idea of how the offset got started sounds correct.  I
 would caution you though that GPS traces can be offset, too, due to
 atmospheric effects.  To really get a good trace with no offset you
 need to do a few traces on different days of the same road (or path is
 better since it is narrow) and through an area with few buildings
 around as these can cause offsets, too.

 Other than those issues, if you trust your traces then I see no reason
 not to fix the offset, but as I said make sure your traces are good
 first.

 -AndrewBuck

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[Talk-ca] Fredericton Open Data

2013-01-02 Thread nicholas ingalls
I've been looking around to find out the status of the Fredericton Open
Data page but have only been able to dig up an old conversation saying
the license was incompatible but the city was considering modifying the
terms.

Did anything come of this? Most of the links in the thread were broken so I
didn't find out what was wrong with the license in the first place other
than it was compared to the Vancouver license and was
probably unintentionally restrictive.

Cheers,
ingalls
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Re: [Talk-us] Adopt-a-highway representation in OSM

2013-01-02 Thread nicholas ingalls
 it seems to me to be a likely maintenance problem in the long run.

I know in Canada it certainly is! There are two adopt-a-highway signs where
I live and both of the clubs that supposedly 'maintain' that part of the
highway stopped participating in the program 7 years ago. The signs have
remained up ever since.

Cheers,
ingalls
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[Talk-ca] Fredericton WMS Offset

2013-01-01 Thread nicholas ingalls
Hello all,

I've been recently drawing all of the buildings in Fredericton in
preparation for going around and collecting the addresses. I'd noticed that
all the buildings in Fredericton were offset. Naturally I assumed that
the original mappers in Fredericton had done this offset on purpose. I
recently tested this against GPS traces and found that the offset was
incorrect based on the traces I collected. I'm now assuming that this data
was traced from the old Yahoo imagery and current users continue to offset
the Bing WMS to match the data traced from the Yahoo imagery.

I am proposing that we shift the data back to match the Bing WMS and the
gps traces. Does anyone else from the Fredericton area have any comments,
or can explain the offset?

Cheers,
ingalls
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Re: [OSM-talk] House Numbers

2012-12-30 Thread nicholas ingalls
6137 Looks good for me. I collect a *lot* of addresses simply by walking.

Cheers,
ingalls


On Sun, Dec 30, 2012 at 5:53 PM, Frederik Ramm frede...@remote.org wrote:

 Hi,

I've made a program that counts how many house numbers someone has
 added. It uses object history, so it should be able to correctly award
 the count to the person actually adding the addr:housenumber tag.

 I don't yet know what will happen with this, but before I make further
 plans, here's the current list of all accounts that have added addresses,
 and how many:

 http://www.remote.org/**frederik/tmp/housenumbers.htmlhttp://www.remote.org/frederik/tmp/housenumbers.html

 It would be great if you could find your name on the list and do a quick
 sanity check in your head whether this looks right or not.

 According to this list, 208 accounts have added more than 10k house
 numbers - if any one of them has actually surveyed that many houses they
 should be awarded a prize! A further ~ 1400 have done between 1k and 10k
 numbers, and ~ 4600 have done between 100 and 1k numbers.

 It is quite possible that the program has bugs so if you notice something
 strange, do mention it.

 Bye
 Frederik

 --
 Frederik Ramm  ##  eMail frede...@remote.org  ##  N49°00'09 E008°23'33

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Re: [OSM-talk] permament access restrictions and routing

2012-12-23 Thread nicholas ingalls
Tagging with access:no usually does the trick :)
Just see here for a list of access tags -
http://wiki.openstreetmap.org/wiki/Access

cheers,
ingalls


On Sun, Dec 23, 2012 at 11:41 AM, Stan Berka stan.be...@gmail.com wrote:

 Yesterday, I did navigation to my work place here in Warsaw using Osmand o
 my G2.  The route I was given led through Warsaw Old Town.  The problem
 with this is, the Old Town is closed to most vehicles, year long, except
 for special vehicles (shop supply, city services etc).  Thus, the route was
 completely useless since I'm not a firetruck driver.  How can this problem
 be resolved, so OSM routers can generate more useful?

 droidguy

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Re: [Talk-us] [OSM-talk] permament access restrictions and routing

2012-12-23 Thread nicholas ingalls
Tagging with access:no usually does the trick :)
Just see here for a list of access tags -
http://wiki.openstreetmap.org/wiki/Access

cheers,
ingalls


On Sun, Dec 23, 2012 at 11:41 AM, Stan Berka stan.be...@gmail.com wrote:

 Yesterday, I did navigation to my work place here in Warsaw using Osmand o
 my G2.  The route I was given led through Warsaw Old Town.  The problem
 with this is, the Old Town is closed to most vehicles, year long, except
 for special vehicles (shop supply, city services etc).  Thus, the route was
 completely useless since I'm not a firetruck driver.  How can this problem
 be resolved, so OSM routers can generate more useful?

 droidguy

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Re: [Talk-us] MassGIS Building Import - process

2012-12-15 Thread nicholas ingalls
If anyone has a problem relating to this I don't mind fixing it. The way to
do it is simply to download all the data within the bounding box, then use
either the search or the authors dialogue to select all the data uploaded
by that particular user and remove. Then the data can be re-uploaded :)

Cheers,
ingalls


On Sat, Dec 15, 2012 at 1:18 AM, Paul Norman penor...@mac.com wrote:

 I notice that several of you are using uploads that involve 50k nodes per
 changeset.

 ** **

 What is your revert plan if one of these long extended uploads gets
 interrupted? The JOSM reverter plugin will not handle this correctly.

 ** **

 *From:* Jason Remillard [mailto:remillard.ja...@gmail.com]
 *Sent:* Thursday, December 13, 2012 8:12 PM
 *To:* talk-us@openstreetmap.org; impo...@openstreetmap.org
 *Subject:* [Talk-us] MassGIS Building Import - process

 ** **

 Hi,

  

 I update the wiki 

  

 http://wiki.openstreetmap.org/wiki/MassGIS_Buildings_Import

  

 It includes all of the emails from tonight. 

  

 - The import account will be restricted to directly uploading the data.
 Any post fixes should be done with the normal account. 

 - There will be a new upload tomorrow with simplified data, and the full
 massgis data osm replaced with an overlapping osm. This will be saved away
 for later incase anybody wants to do merges after this project is done. I
 will do Groton for sure

  

 Only two remaining issue 

  

 - If we should restrict manual importing to a small group of people. I
 have gotten several feedback messages that letting everybody do it has ***
 *

 turned out not to be a great idea on other imports. We are up to 5 people
 now, all of them have zillion changes to the map. This is not a problem
 yet. Honestly, I am not sure if people will be beating down the doors to
 help or not...

  

 - How hard do we work on the manual imports. Do we stop doing them if the
 data looks really good, and just run the script, or do we keep doing the
 manual imports until we tire of it.  Running the script sooner, gets the
 map better quicker, and lighter OSM users can probably handle cleaning up
 the small 1/500 errors.

  

 After this, I think we are ready to roll this up and get to work.

  

 Thanks

 Jason.

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Re: [Talk-us] [Imports] MassGIS Building Import Start

2012-12-12 Thread nicholas ingalls
In regards to this and previous imports, I have found that this is by no
means the law when it comes to imports. In Canada we have / and still are
in the lengthy process of importing canvec data for the whole country. We
do this in a distributed approach. Each user can upload the data with their
own account. This is MUCH better in many cases as it encourages people to
upload the canvec data in their own area instead of a user sitting hundreds
of miles away uploading with a generic account. It also allows people to be
held responsible (in a good way) for their data. With a generic account
being used by multiple people mistakes are harder to track to the source.
By using individual accounts problems can be more easily tracked. Ie a user
is not fixing validator issues before uploading causing problems. With a
single user account tracking down the specific uploader is near impossible.

Just my two cents.

tl;dr Using individual accounts is better as it promotes uploading data in
ones area.

cheers,
ingalls


On Wed, Dec 12, 2012 at 10:56 PM, Jeff Meyer j...@gwhat.org wrote:

 Paul - can you elaborate on the point about users being blocked if not
 using a dedicated account?

 The guidelines don't point this out  it seems contrary to the spirit of
 there being no right way of doing things in OSM. (Not a policy I agree
 with, but que sera...).

 Who does the blocking?

 Thanks, Jeff


 On Wed, Dec 12, 2012 at 6:49 PM, Paul Norman penor...@mac.com wrote:

 A couple of initial comments: 

 ** **

 Has some kind of simplify been run on the data? Although most of the
 buildings are quite good some of the curved ones are overnoded (e.g.
 http://took.paulnorman.ca/imports/massgis/noded.png)

 ** **

 If your documentation conflicts with the requirements of the import
 guidelines (
 http://wiki.openstreetmap.org/wiki/Import/Guidelines#Use_a_dedicated_user_account)
 around a dedicated account it may lead to people importing your data
 getting blocked.

 ** **

 You’ve asked for a check of the reprojection in the data directory but I
 don’t actually see a data directory anywhere. Could you provide a link?

 

 *From:* Jason Remillard [mailto:remillard.ja...@gmail.com]
 *Sent:* Wednesday, December 12, 2012 5:15 PM
 *To:* talk-us@openstreetmap.org; impo...@openstreetmap.org
 *Subject:* [Talk-us] MassGIS Building Import Start

 ** **

 Hello Everybody,

  

 I would like to kick off the MassGIS building import. This following is
 copy/paste from the current wiki (
 http://wiki.openstreetmap.org/wiki/MassGIS_Buildings_Import). The
 external links will work on the wiki.

  

 --

  

 On Dec, 2012 MassGIS http://wiki.openstreetmap.org/wiki/MassGIS released
 a high quality data layer for all 
 buildingshttp://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/structures.html
  in
 the entire state of MA. Previously 
 MassGIShttp://wiki.openstreetmap.org/wiki/MassGIS only
 had buildings for Boston and its nearby suburbs.

 The plan is as follows.

 *Source Data License*

 All MassGIS http://wiki.openstreetmap.org/wiki/MassGIS data is in the
 public domain. See MassGIS http://wiki.openstreetmap.org/wiki/MassGIS page,
 and talk-us 
 archiveshttp://lists.openstreetmap.org/pipermail/talk-us/2012-December/thread.html
  for
 detailed discussion. A previous (incomplete) version of this data that
 covers the Boston area has already been imported.

 From the MA Secretary of state Office Frequently Asked 
 Questionshttp://www.sec.state.ma.us/pre/prepdf/guide.pdf,
 first question is

 What records are public?

 Every document, paper, record, *map*, photograph, etc., as defined by
 law, that is made or received by a government entity or employee is
 presumed to be a public record

 From the MA Secretary of state Duplication 
 Serviceshttp://www.sec.state.ma.us/arc/arcres/residx.htm,
 last section.

 Records created by Massachusetts government are not copyrighted and are
 available for public use. Copyright for materials submitted to state
 agencies may be held by the person or organization that created the
 document. Patrons are responsible for clearing copyright on such materials.
 For more information on copyright law, please see the U.S. Copyright
 Office's web page at lcweb.loc.gov/copyright.

 *Scripts*

 A script was written to convert MassGIS shp files to OSM file. Each town
 has its own zip. Inside of the zip is two OSM files. The first file has all
 of the buildings, the second file has only the buildings missing from OSM.
 This has been completed, data is 
 herehttps://docs.google.com/a/twincoastmetrology.com/folder/d/0B6HixOxli_6ldGVkREtxdk5lWGM/edit.
 jremillard will update these files. The scripts used for the shape to OSM
 conversion are also at the same link as the data.

 *Status Tracking*

 A google docs 
 

Re: [Talk-ca] Talk-ca Digest, Vol 55, Issue 2

2012-09-04 Thread nicholas ingalls
Hey Guys,

I'm currently working on addresses in the saint john area, as I am
finishing up my tracing of all the buildings in the area. I was just
wondering what your guys opinion was for including house numbers. Would you
attach them to the building or do what denmark does and have them as a
separate node? As well should I also include interpolation ways? This might
be overkill having both but at the same time this would allow routing
software to find an address that I don't have connected to a house. (i.e in
a year a new house is built and hasn't been added to osm,
with interpolation a routing engine could still locate it)

Look forward to your feedback.

Cheers,
ingalls
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[Talk-ca] Grand Manan Coastlinesb

2012-06-30 Thread nicholas ingalls
Hey all,

I'm going to be heading to Grand Manan for a bit of a vacation in the
coming weeks. I was in the process of downloading the data that we have
when I noticed that the coastlines are a complete mess. Most of the small
islands around Grand Manan are flooded, and Grand Manan itself as sections
that JOSM shows as flooded. I don't have much experience dealing with
relations so I was wondering if someone could fix this up for me? Hopefully
it wouldn't be too big a job as most of the islands that are flooded are
small in size.

Cheers,
Ingalls
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[Talk-ca] Possible data source

2012-04-18 Thread nicholas ingalls
This is my first time actually posting a message on a mailing list so
please let me know if I did something incorrectly! Although I haven't
posted I am an active member of OSM and have followed the list closely.

I just noticed a new possible source of high quality Ariel imagery that has
recently (2011) come online.
http://publiclaboratory.org/tool/balloon-mapping
http://publiclaboratory.org/archive

Although I don't have much experience with licensing, it says it is
open-source and it would be interesting to see whether the liscenses were
compatible.

Cheers,
ingalls
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