[HOT] OSM before and after

Pierre Béland pierzenh at yahoo.fr
Tue Jan 5 19:46:03 UTC 2016


Hi Andrew,
The Before OSM layer comes from FOSM, a fork of OSM in end of 2012. See http://www.fosm.org/ 

I only need to provde a Client HTTP page that access external FOSM and OSM/HOT layers. With this light solution, I have no database to maintain. This is also a practical way to compare rapidly any area in the world. This Compare map is used in general for communications about mapping progress. The results are in general satisfactory enough to illustrate the mapping progress. We can provide a more precise measure of progress with statistics of contribution.

The comparizon is in general ok since the FOSM map did not evolve rapidly since the end of 2012, in particular in development countries where HOT and partners have mapping projects.  This way we dont need to develop scripts to extract history data end produce map tiles each time we want to make a comparizon for an area.  
 
Pierre 

 

      De : Andrew Wiseman <awiseman at gmail.com>
 À : Pierre Béland <pierzenh at yahoo.fr> 
Cc : Pete Masters <pedrito1414 at googlemail.com>; "hot at openstreetmap.org" <hot at openstreetmap.org>
 Envoyé le : mardi 5 janvier 2016 13h47
 Objet : Re: [HOT] OSM before and after
   
These tools are really cool! What is the date for the before tiles, and is there a way to specify them?
Andrew
On Tue, Jan 5, 2016 at 11:48 AM, Pierre Béland <pierzenh at yahoo.fr> wrote:

Hi Pete,
The Before tile is back in the OSMCompare page. See compare for Gueckedou http://pierzen.dev.openstreetmap.org/hot/leaflet/OSM-Compare-before-after.html#14/8.5637/-10.1331

I just corrected the tile link with the new tile url specified in map.fosm.org, the OSM fork project that let us compare when we add new infos to OSM.  

We might have to consider eventually to host a copy of these Before tiles somewhere else. If the same Humanitarian style was used for the Before and after tiles, it would also make a better map compararizon.

 
Pierre 

 

      De : Pete Masters <pedrito1414 at googlemail.com>
 À : "hot at openstreetmap.org" <hot at openstreetmap.org> 
 Envoyé le : mardi 5 janvier 2016 8h52
 Objet : [HOT] OSM before and after
  
Hi all, happy new year!
I have used Pierre's website for showing impact of Missing Maps activities extensively in the past: http://pierzen.dev.openstreetmap.org/hot/leaflet/OSM-Compare-before-after.html#10/27.9083/85.5286
But, for a while now, it has not been working. Does anyone know of an alternative that shows a before and after map?
Cheers,
Pete

-- 
Pete Masters
Missing Maps Project Coordinator
+44 7921 781 518

missingmaps.org
@pedrito1414
@theMissingMaps
facebook.com/MissingMapsProject

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