Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Matthijs Melissen]

On 14 July 2016 at 21:16, Pierre Béland  wrote:
> Michal, you might have seen my OSMCompare slider map where I use the FOSM
> layer for comparison.
>
> http://pierzen.dev.openstreetmap.org/hot/leaflet/OSM-Compare-before-after.html#10/27.9083/85.5286

Nice work, inspired on this I just created an alternative view of these maps:
http://bl.ocks.org/math1985/raw/328d6a95a431996813ece839aaf9ff7b/

-- Matthijs

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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[moltonel 3x Combo]

On 15/07/2016, Rory McCann  wrote:
> On 14/07/16 20:49, Michał Brzozowski wrote:
>> I would swear I saw a page doing exactly that (with a comparison slider).
>> The reason is I suspect that some website uses old cc-by-sa OSM data
>> (due to its nature, with their own updates) without attribution nor
>> with modified map data released.

If you dig through the history of
https://wiki.openstreetmap.org/wiki/Remapping you'll find lots of urls
that showed what impact the data redaction for the license change was
going to have. But probably none of those are still functional.

> I'm not sure, but could you download & use the files from here:
> http://planet.openstreetmap.org/cc-by-sa/ ? Import with osm2pgsql and
> display it yourself with openstreetmap-carto ?

I think that's the best bet at this stage. There a a few websites that
render OSM at differents snapshots in time, but I don't know of any
that have snapshots pre/post odbl.

Contributors have put a lot of effort into making the diff as small as
possible, and even in areas where the loss was significant (parts of
Australia for example), OSM recovered amazingly quickly afterwards.

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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Rory McCann]

On 14/07/16 20:49, Michał Brzozowski wrote:
> I would swear I saw a page doing exactly that (with a comparison slider).
> The reason is I suspect that some website uses old cc-by-sa OSM data
> (due to its nature, with their own updates) without attribution nor
> with modified map data released.

I'm not sure, but could you download & use the files from here:
http://planet.openstreetmap.org/cc-by-sa/ ? Import with osm2pgsql and
display it yourself with openstreetmap-carto ?

Rory


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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Nicolás Alvarez]

The 2007 tiles on mvexel's map come from http://schaal.dyndns.org/osm/
which doesn't seem to be working.

-- 
Nicolás


2016-07-15 0:17 GMT-03:00 Marc Gemis :
> Do you mean Martijn van Excel's "Now and Then" ?
> https://mvexel.github.io/thenandnow/#10/52.2644/5.2899
> It does has a slider, but it compares 2007 with now.
>
> regards
>
> m
>
> On Thu, Jul 14, 2016 at 9:42 PM, Michał Brzozowski  
> wrote:
>> I am not. I just don't want to say "guilty" prematurely. It's a system
>> for traffic information (public-facing site) and traffic control built
>> by some neighboring cities.
>>
>> Michał
>>
>> On Thu, Jul 14, 2016 at 9:27 PM, Martin Koppenhoefer
>>  wrote:
>>>
>>> 2016-07-14 21:11 GMT+02:00 Michał Brzozowski :

 No. They render maps on their own and also FOSM data seem not to be
 *just* before the redaction (am I right? There are no changes I made
 in May 2012)
>>>
>>>
>>>
>>>
>>> maybe you are talking about Apple maps? They use both, pre-redaction
>>> cc-by-sa data and also ODbl data.
>>>
>>> Cheers,
>>> Martin

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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Marc Gemis]

Do you mean Martijn van Excel's "Now and Then" ?
https://mvexel.github.io/thenandnow/#10/52.2644/5.2899
It does has a slider, but it compares 2007 with now.

regards

m

On Thu, Jul 14, 2016 at 9:42 PM, Michał Brzozowski  wrote:
> I am not. I just don't want to say "guilty" prematurely. It's a system
> for traffic information (public-facing site) and traffic control built
> by some neighboring cities.
>
> Michał
>
> On Thu, Jul 14, 2016 at 9:27 PM, Martin Koppenhoefer
>  wrote:
>>
>> 2016-07-14 21:11 GMT+02:00 Michał Brzozowski :
>>>
>>> No. They render maps on their own and also FOSM data seem not to be
>>> *just* before the redaction (am I right? There are no changes I made
>>> in May 2012)
>>
>>
>>
>>
>> maybe you are talking about Apple maps? They use both, pre-redaction
>> cc-by-sa data and also ODbl data.
>>
>> Cheers,
>> Martin
>
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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Michał Brzozowski]

I am not. I just don't want to say "guilty" prematurely. It's a system
for traffic information (public-facing site) and traffic control built
by some neighboring cities.

Michał

On Thu, Jul 14, 2016 at 9:27 PM, Martin Koppenhoefer
 wrote:
>
> 2016-07-14 21:11 GMT+02:00 Michał Brzozowski :
>>
>> No. They render maps on their own and also FOSM data seem not to be
>> *just* before the redaction (am I right? There are no changes I made
>> in May 2012)
>
>
>
>
> maybe you are talking about Apple maps? They use both, pre-redaction
> cc-by-sa data and also ODbl data.
>
> Cheers,
> Martin

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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Martin Koppenhoefer]

2016-07-14 21:11 GMT+02:00 Michał Brzozowski :

> No. They render maps on their own and also FOSM data seem not to be
> *just* before the redaction (am I right? There are no changes I made
> in May 2012)
>



maybe you are talking about Apple maps? They use both, pre-redaction
cc-by-sa data and also ODbl data.

Cheers,
Martin
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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Pierre Béland]

On 14/07/2016 19:49, Michał Brzozowski wrote:
> I would swear I saw a page doing exactly that (with a comparison slider).

Michal, you might have seen my OSMCompare slider map where I use the FOSM layer 
for comparison.
http://pierzen.dev.openstreetmap.org/hot/leaflet/OSM-Compare-before-after.html#10/27.9083/85.5286
 

 
Pierre 


  De : Andy Townsend <ajt1...@gmail.com>
 À : talk@openstreetmap.org  Envoyé le : jeudi 14 juillet 2016 14h59
 Objet : Re: [OSM-talk] Viewing pre-redaction OSM tiles?
   
On 14/07/2016 19:49, Michał Brzozowski wrote:
> I would swear I saw a page doing exactly that (with a comparison slider).
> The reason is I suspect that some website uses old cc-by-sa OSM data
> (due to its nature, with their own updates) without attribution nor
> with modified map data released.

Apologies if I've misinterpreted the question, but if you saw something 
comparing against old OSM data it might have been using tiles from 
http://map.fosm.org/ ?  That's based on pre-licence change OSM data.  
There are some people updating that, but not many.

Best Regards,

Andy


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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Michał Brzozowski]

No. They render maps on their own and also FOSM data seem not to be
*just* before the redaction (am I right? There are no changes I made
in May 2012)

Michał

On Thu, Jul 14, 2016 at 8:59 PM, Andy Townsend  wrote:
> On 14/07/2016 19:49, Michał Brzozowski wrote:
>>
>> I would swear I saw a page doing exactly that (with a comparison slider).
>> The reason is I suspect that some website uses old cc-by-sa OSM data
>> (due to its nature, with their own updates) without attribution nor
>> with modified map data released.
>
>
> Apologies if I've misinterpreted the question, but if you saw something
> comparing against old OSM data it might have been using tiles from
> http://map.fosm.org/ ?  That's based on pre-licence change OSM data.  There
> are some people updating that, but not many.
>
> Best Regards,
>
> Andy
>
>
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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Andy Townsend]

On 14/07/2016 19:49, Michał Brzozowski wrote:

I would swear I saw a page doing exactly that (with a comparison slider).
The reason is I suspect that some website uses old cc-by-sa OSM data
(due to its nature, with their own updates) without attribution nor
with modified map data released.


Apologies if I've misinterpreted the question, but if you saw something 
comparing against old OSM data it might have been using tiles from 
http://map.fosm.org/ ?  That's based on pre-licence change OSM data.  
There are some people updating that, but not many.


Best Regards,

Andy


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Re: [OSM-talk] Viewing pre-redaction OSM tiles?

[Nicolás Alvarez]

2016-07-14 15:49 GMT-03:00 Michał Brzozowski :
> Hi.
> I would swear I saw a page doing exactly that (with a comparison slider).
> The reason is I suspect that some website uses old cc-by-sa OSM data
> (due to its nature, with their own updates) without attribution nor
> with modified map data released.

You could look at the tiles from FOSM: http://www.fosm.org/
They made a fork of OSM from cc-by-sa pre-redaction data, but they
have several orders of magnitude less edits/editors than OSM, so in
many parts of the world you can pretend it's a frozen pre-redaction
snapshot ;)

-- 
Nicolás

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[OSM-talk] Viewing pre-redaction OSM tiles?

[Michał Brzozowski]

Hi.
I would swear I saw a page doing exactly that (with a comparison slider).
The reason is I suspect that some website uses old cc-by-sa OSM data
(due to its nature, with their own updates) without attribution nor
with modified map data released.

Michał

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