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  • OpenStreetMap and Hadoop

    - by portoalet
    Hi, I need some ideas for a weekend project about Hadoop and OpenStreetMap. I have access to AWS EC2 instance with OpenStreetMap snapshot in my EBS volume. The OpenStreetMap data is in a PostgreSQL database. What kind of MapReduce function can be run on the OpenStreetMap data, assuming I can export them into xml format, and then place into HDFS ? In other words, I am having a brain cramp at the moment, and cannot think what kind of MapReduce operation that can extract valuable insight from the OpenStreetMap xml? (i.e. extract all the places designated as park or golf course. But this needs to be done once only, not continuously) Many Thanks

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  • Wikipedia passe à OpenStreetMap et abandonne Google Maps pour ses applications mobiles, la version iOS disponible

    Wikipedia passe à OpenStreetMap Et abandonne Google Maps pour ses applications mobiles, la version iOS disponible [IMG]http://ftp-developpez.com/gordon-fowler/OpenStreetMap.png[/IMG] Après Apple pour iPhoto, c'est au tour de Wikipedia de passer à l'alternative collaborative et open source des Google Maps avec OpenStreetMap. Ce choix concerne les applications mobiles (iOS et Android) de l'encyclopédie. Ses applications proposent à un utilisateur de le géolocaliser et d'afficher les éléments intéressants (bâtiments, musées, évènements historiques, etc.) à proximité.

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  • Custom map solution using openstreetmap

    - by LearneR
    I want to work in real estate portal and I need to filter the result and list the properties in map view using openstreetmap (Client requirement). They gave this reference site . I started on yesterday only but the documentation and all I am not able to understand (as a beginner). Can we implement like this using openstreetmap? Where should I start at first? Also I have seen some of the users recommended openlayers, leaflet, mapquest in help answers. Which one is best for my requirement openstreetmap or thirdparty api? Please guide me to complete this task. I don't know where I am and where I have to start?

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  • How to get the place name by latitude and longitude using openstreetmap in android

    - by Gaurav kumar
    In my app i am using osm rather than google map.I have latitude and longitude.So from here how i will query to get the city name from osm database..please help me. final String requestString = "http://nominatim.openstreetmap.org/reverse?format=json&lat=" + Double.toString(lat) + "&lon=" + Double.toString(lon) + "&zoom=18&addressdetails=1"; RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL.encode(requestString)); try { @SuppressWarnings("unused") Request request = builder.sendRequest(null, new RequestCallback() { @Override public void onResponseReceived(Request request, Response response) { if (response.getStatusCode() == 200) { String city = ""; try { JSONValue json = JSONParser.parseStrict(response); JSONObject address = json.isObject().get("address").isObject(); final String quotes = "^\"|\"$"; if (address.get("city") != null) { city = address.get("city").toString().replaceAll(quotes, ""); } else if (address.get("village") != null) { city = address.get("village").toString().replaceAll(quotes, ""); } } catch (Exception e) { } } } }); } catch (Exception e1) { }

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  • OpenStreetMap Proximity search using mySQL

    - by Chris
    Hi, I'm just playing around with a dataset of my region generated by JOSM. I moved it into a mySQL DB with the 0.6 API scheme using Osmosis and now I'm desperately trying the following: I want to get all streets of a city. AFAIK there is no tag/relation in the OSM data to determine this so I tried it using a proximity search to get all nodes in a radius around a node representing the city center. Most of the time I looked at the approaches here: http://stackoverflow.com/questions/574691/mysql-great-circle-distance-haversine-formula What I got is the following SQL code that should get me the closest 100 nodes around the node with id 36187002 and within a radius of 10km. set @nodeid = 36187002; set @dist = 10; select longitude, latitude into @mylon, @mylat from nodes where id=@nodeid limit 1; SELECT id, ( 6371 * acos( cos( radians(@mylon) ) * cos( radians( latitude ) ) * cos( radians( longitude ) - radians(@mylat) ) + sin( radians(@mylon) ) * sin( radians( latitude ) ) ) ) AS distance FROM nodes HAVING distance < @dist ORDER BY distance LIMIT 0 , 100; Well.. it doesn't work. :( I guess the main problem is that OSM lats/lons are multiplied by 10.000.000 and I don't know how I can correct this function to make it work. Any ideas about this? All solutions/alternatives are very welcome! Have a nice weekend! Chris

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  • Enrich a dataset of POIs with OpenStreetMap

    - by zero
    update: due to some hints of users - eg oliver Salzburg and slhck i have been aware of gis.stackexchange.com - so i moved the topic on my own: Plz can you or somebody who has the permission close the article - since we do not need this topic on two sites. Thx for your work. KEEP up the service here! STACK-sites rock. I have a list of POIs, some with a full description and some with only a few data entries, like the following: 6.9441000 50.9242000 [50677] (Ital) Casa di Biase [Köln] 6.9373600 50.9291800 [50674] (Ital) Al Setaccio [Köln] However, I need the full dataset. Can I get this somewhere? If I have all the position data, is it possible to find the rest? a. name of the street b. name of the town So for example, the data should finally look like this: 10.5346100 52.1613600 [38300] (Chin) Wanbao Kommissstr.9 [Wolfenbüttel] 13.2832500 52.4422600 [14167] (Ital) LaPergola Unter den Eichen 84d [Berlin] 13.3177700 52.5062900 [10625] (Chin) Good Friends Kantstr.30 [Berlin] Can I do this with OpenStreetMap? Should I parse OpenStreetMap data? Or OpenBabel?

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  • Apple remplace Google Maps par OpenStreetMap dans iPhoto, preuve de la maturité du service libre de cartographie ?

    Apple remplace Google Maps par OpenStreetMap Dans iPhoto iPhoto est un logiciel de gestion d'images de la suite iLife produit par Apple. La société a annoncé le remplacement de Google Maps par OpenStreetMap pour les cartes utilisées dans la géolocalisation des clichés utilisées par ce logiciel. [IMG]http://ftp-developpez.com/gordon-fowler/iPhoto.jpg[/IMG] Les responsables d'OpenStreetMap s'en félicitent, puisque cela prouve que le projet, né en 2004, a maintenant atteint un niveau de maturité suffisant pour intéresser jusqu'aux plus grandes sociétés. Pour rappel, le but du p...

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  • Free Offline Map Provider (and not OpenStreetMap)

    - by Radian
    I am making for my Graduation Project a low price Navigation device, using Android as Operating System I tried the Native Google's Map-view Control, but it works only Online .. and of-course I want to store maps for offline navigation So.. I want a map provider (like OpenStreetMap) that : I can use offline Contain Searchable Street names (not only a rendered image) for commercial use Free or at low price The problem with OpenStreetMap that it doesn't provide detailed map for most cities in Egypt.

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  • How to scale out OpenStreetMap data efficiently

    - by Pierre
    For over a year now, I'm running an in-house PostGIS server filled with OSM data, used for both Mapnik-based tile generation and Nominatim-based geocoding, updated with day replicates. This works pretty well. However, as usage is growing exponentially, I would like to achieve better reliability and performance by adding additional PostgreSQL servers. And I'm kind of lost. Since PostgreSQL doesn't seem to handle replication by itself, I would think about using a piede of middleware like PgPool-II to keep the servers in sync. But I'm afraid it would be nothing but necessary for this usage : very high read-to-write ratio, where all writes are done at the same exact time every day. My questions are simple : What would you do to keep these servers in sync? And, what is done for this at the OpenStreetMap Foundation, MapQuest, Mapbox or CloudMade? Thanks.

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  • Google Maps, baisse des prix de l'API : pour contrer la montée en puissance d'OpenStreetMap ?

    Google Maps : baisse des prix de l'API Pour contrer la montée en puissance de OpenStreetMap ? Mise à jour du 25/06/12 Depuis que Google a décidé de rendre payant l'API de son service de cartographie, plusieurs migrations ont été constatées vers le service concurrent ? et open-source ? OpenStreetMap : Foursquare, Apple et Wikipedia en tête. Même si seuls 0.35 % des sites qui utilisent les Google Maps dépassent les seuils de l'usage gratuit et même si ces trois exemples ne sont pas exclusivement liés à ce passage au ...

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  • Wikipedia abandonne Google Maps et passe à OpenStreetMap pour ses applications mobiles, la première version pour iOS est disponible

    Wikipedia passe à OpenStreetMap Et abandonne Google Maps pour ses applications mobiles, la version iOS disponible Après Apple pour iPhoto, c'est au tour de Wikipedia de passer à OpenStreetMap, l'alternative collaborative et open source aux Google Maps. Ce choix concerne les applications mobiles (iOS et Android) de l'encyclopédie. Ses applications proposent à un utilisateur de le géolocaliser et d'afficher les éléments intéressants (bâtiments, musées, évènements historiques, etc.) à proximité. [IMG]http://ftp-developpez.com/gordon-fowler/Wikipedia%20appli.png[/IMG]

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  • Geodjango: importing data from OSGB_1936, displaying in WGS84?

    - by AP257
    I have some polygon data saved in a PostGIS database with projection SRID 27700. geom = models.MultiPolygonField(srid=27700) I want to display the shapes on OpenStreetMap, i.e. with SRID 900913 (I think?). So, two questions: How do I change the code below to output with the right SRID for OpenStreetMap? How can I change the Django code below to give me a nice json object, ready to display as a polygon? area = get_object_or_404(soa.objects, code=my_code) polygon = area.geom return render_to_response('area.html', { 'area': area }, context_instance = RequestContext(request)) Apologies if this question doesn't make sense - I'm pretty new to GeoDjango.

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  • How to render OpenStreetMaps?

    - by DomingoSL
    Did you know a way to render the .osm format given by OpenStreetMap in Php, JavaScript, ActionScript or other web plataform? What do you recomend to implement it? Where can i find good examples in the plataform you suggest? Thanks

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  • Protobuf-net Deserialize Open Street Maps

    - by jonperl
    For the life of me I cannot deserialize the protobuf file from Open Street Maps. I am trying to deserialize the following extract: http://download.geofabrik.de/osm/north-america/us-northeast.osm.pbf to get Nodes and I am using http://code.google.com/p/protobuf-net/ as the library. I have tried to deserialize a bunch of different objects but they all come up null. The proto files can be found here: http://trac.openstreetmap.org/browser/applications/utils/export/osm2pgsql/protobuf Any suggestions?

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  • SIMPLE reverse geocoding using Nominatim

    - by tony gil
    i am developing an online mapping application using OpenLayers + OpenStreetMaps. i need help implementing a simple reverse geocoding function in javascript (or php) that receives Latitude and Longitude and returns an Address. i would like to work with Nominatim, if possible. i do NOT want to use Google, Bing or CloudMade or other proprietary solutions. this link returns a reasonable response and i used simple_html_dom.php to break down the result but it is sort of an ugly solution. <?php include('simple_html_dom.php'); $url = "http://nominatim.openstreetmap.org/reverse?format=xml&lat=-23.56320001&lon=-46.66140002&zoom=27&addressdetails=1"; $html = file_get_html($url); foreach ($html->find('road') as $element ) { echo $element; } ?> any suggestions of a more elegant solution?

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  • what POIs (Point of Interests) DB can I use for a commercial app

    - by Ellie
    Hi, I need a POI database for a startup project I am working on - it will be a free basic version and a premium paid for version in the sense that user will pay a monthly subscription. I would like to use foursquare type checkin to places and plancast type functionality to search for places (one-line search). Ie I need to: - perform a search for POIs around a location - associate users to that POI, with a time stamp - allow users to add own POIs - provide free-text search for POIs (a la google one-line search) Google API allows great search, but I understand there are limits in number of requests that can be done? This would prevent scaling, and may result in application breaking when too many users. Also what does google T&C say about using this in a paid for service? Openstreetmap I understand does not have these contstraints, but do they also provide a good one-line search type API? Or how could I solve this? Many thanks for any advice, Ellie

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  • How to execute a osmdroid application?

    - by Rupesh Chavan
    Hello everyone, Can someone please tell me what are the steps to execute a osmdroid application. I have Eclipse installed on my machine along with ADT plugin and i have downloaded the source code and imported it in a eclipse. and tried to run it on Android 1.6 platform but somehow i am not getting the map instead i m just getting blank screen with grid in it. Are there any configurations has to be done which i am missing? Any help or any tutorial to execute osmdroid application will be appreciated. Thanks, Rupesh

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  • JXMapViewer change orientation to Heading Up

    - by Charlie
    I am trying to use JXMapViewer (from swingx-ws) with Open Street Maps. I was wondering if it would be possible to display the map tiles in the JXMapViewer based on heading up, rather than on North up. For example, the normal car GPS navigation systems let you do that. I've looked through the documentation and there doesn't seem to be a straightforward way to do this. Is there something else that accomplish this, besides JXMapViewer?

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  • Change Projection in OpenLayers Map

    - by deamon
    I want to set "EPSG:4326" as the projection of an OpenLayers map, but when I try it, I always get "EPSG:900913". function init() { var options = { projection: new OpenLayers.Projection("EPSG:4326") // ignored }; map = new OpenLayers.Map('map', options); var layer = new OpenLayers.Layer.OSM.Osmarender("Osmarender"); map.addLayer(layer); ... alert(map.getProjection()); // returns "EPSG:900913" ... } How can I set the Projection to EPSG:4326?

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  • Determine the urban district from coordinates

    - by Michael Kowhan
    Hi, I am looking for a database that allows to find the name of an urban district from the coordinates. I have tried to use Google Maps or Open Street Map to find that information, but they do not seem to be able to deliver this data. I'm especially looking for a database for Germany Cheers, Michael

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  • Google Maps or Open Street or Something Else

    - by clifgray
    I have been working on a concept for a while for a sports related website where users can record a location on a map and put that location into a category for a sport and then rate it by a metric or two. I want these metrics displayed on the map but then I want a link or button to view a full page description. I know that this is possible with Google Maps but I don't know a lot about Open Street Maps or other options. I am expecting around 50,000 views a day and am curious as to what the best option would be.

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