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Wednesday, 17. July 2019

OpenStreetMap User's Diaries

Street Commplete Deuxième partie

Depuis mon dernier billet sur le sujet je me suis mis à utiliser le logiciel de manière intensive. J’ai eu quelques soucis: 1. À la frontière allemande, juste de l’autre côté – pas moyen de chopper la carte et donc d’avoir des quêtes. 2. J’ai mis la carte dans une vue avec un angle (eg pas de par-dessus) et là impossible récupérer des quêtes. :-( J’ai fini par remettre la carte comme il fallait,

Depuis mon dernier billet sur le sujet je me suis mis à utiliser le logiciel de manière intensive. J’ai eu quelques soucis: 1. À la frontière allemande, juste de l’autre côté – pas moyen de chopper la carte et donc d’avoir des quêtes. 2. J’ai mis la carte dans une vue avec un angle (eg pas de par-dessus) et là impossible récupérer des quêtes. :-( J’ai fini par remettre la carte comme il fallait, mais j’ai galéré pour comprendre et trouver. 3. Les zones des quêtes sont plus larges que les éditions dans ID ou JOSM, par exemple les valeurs de vitesse pour les routes sont imprécises, mais derrière ça force une édition dans josm :p 4. Enfin j’ai des quêtes auxquelles j’ai déjà répondu qui sont revenues ce matin.

Mais je confirme ma première impression, pour moi c’est l’application qu’il fallait pour que je contribue de nouveau.


New Tutorial on Making Printable Wall Maps

The last wall maps I generated of Ashgabat and Turkmenistan took a different turn, due to the heavy data requirements involved in a road atlas of the whole country. I was forced to learn Osmosis and the rudiments of Inkscape to edit SVG files first in order to reduce the volume of data and second to take the Maperitive-generated map and tweak it more easily. The lessons learned are now posted

The last wall maps I generated of Ashgabat and Turkmenistan took a different turn, due to the heavy data requirements involved in a road atlas of the whole country. I was forced to learn Osmosis and the rudiments of Inkscape to edit SVG files first in order to reduce the volume of data and second to take the Maperitive-generated map and tweak it more easily. The lessons learned are now posted on the OSM wiki here. Comments on this tutorial are welcome.

Working with SVG images has its pros and cons, but on balance I think the map quality is better with this approach. That said, one can only wish that Inkscape and Osmosis were a bit more intuitive!

Tuesday, 16. July 2019

Peter Reed

River Till

♦The plan today was to stick the bike on the back of the car, and try part of NCN68 a bit further north than the section that I rode a few weeks ago. However, as I drove north the sky went dark and there was a heavy shower of rain. Instead of stopping near Ford, and getting soaked as I worked north, I thought it better to carry on driving until the rain stopped, then work south.

The rain had
The plan today was to stick the bike on the back of the car, and try part of NCN68 a bit further north than the section that I rode a few weeks ago. However, as I drove north the sky went dark and there was a heavy shower of rain. Instead of stopping near Ford, and getting soaked as I worked north, I thought it better to carry on driving until the rain stopped, then work south.

The rain had pretty much stopped by the time I reached Norham. From there I followed NCN68 south, to Etal then back. It was a nice ride, with a particularly lovely section following the bank of the River Till.

In a few days time I'll complete my first two months back on the bike. Fourteen miles today takes the total distance past 200 miles. That doesn't sound much, but the air was humid and the landscape crinkly enough to make it feel like more. And the extended journey meant that I got home later than I planned, but as content as I hoped (and I didn't get soaked).

OpenStreetMap User's Diaries

NaPTAN Aberdeen Import Summary

The Import

Yesterday I performed an import of NaPTAN bus stop data for the Aberdeen area. The motivations behind this import were:

  1. To greatly increase the coverage of bus stop data in the area.
  2. To get some experience importing data (hence the very specific and simple scope of this import).
  3. To establish a method of importing NaPTAN data since the original im

The Import

Yesterday I performed an import of NaPTAN bus stop data for the Aberdeen area. The motivations behind this import were:

  1. To greatly increase the coverage of bus stop data in the area.
  2. To get some experience importing data (hence the very specific and simple scope of this import).
  3. To establish a method of importing NaPTAN data since the original import was abandoned (and all of this very useful data has been sitting unused).

Results

Increased Stop Coverage

The import changsets can be found by looking at user naptan_import_aberdeen.

In total there were 63 regions of the Aberdeen area imported as separate changesets. Across those a total of 1357 bus stops were imported - of which 875 (64%) were new and 482 (36%) were conflated with existing stops.

The Aberdeen region (the city centre) had the most stops with 154 total. While the Countesswells and Footdee regions tied for the least with just 1 stop each.

Experience Gained

I think the most valuable experience I’ve gained from this import was in consulting the community and following the import guidelines. It’s quite daunting when you first see the guidelines and was honestly a little off-putting for me personally because I’ve been fatigued by aspects of the OSM community in the past. Thankfully, the UK community are quick to respond on the mailing lists and very helpful and constructive.

If I hadn’t consulted the mailing lists then I wouldn’t have known how useful and important some of the NaPTAN data fields are. Originally I was of the mindset that only the naptan:AtcoCode was necessary to import since it establishes a link between the OSM data and the NaPTAN data. However, after actually performing the import I can already say that the other fields helped me to distinguish between stops in close proximity with the same name.

Method Established

Overall I’m pretty satisfied with the method I followed. Converting the desired data into OSM XML was trivial using the script I wrote and it would be very simple to extend the script to do more if needed.

The conflation process is what’s really of interest though as it was the main challenge of this import. I decided rather than trying to automate the process it would be more beneficial to conflate the imported data manually in JOSM. After working with it, I can say that NaPTAN data as a whole is pretty accurate. However, there were a couple of situations I ran into which required extra care.

The most common situation is that NaPTAN stops can be displaced from existing nodes by more than 50 meters. Using the JOSM conflation plugin as specified in my import plan, the default distance setting for conflation is 30 meters. I found that bumping this up to 50 meters caught the majority of conflations, but still wasn’t perfect. As seen in the centre of the image below, two of the stops on Garthdee Road are not matched to their corresponding existing nodes (where blue arrows show matches).

Example

I wouldn’t ever advise relying on the plugin alone and recommend always manually scanning through all of the stops to look for possible duplicates or other issues. My process evolved into:

  1. Run conflation matching.
  2. Toggling the import data layer visibility on/off to check for unmatched stops near to existing nodes (because the data is on different layers it’s easy to spot any nearby bus stop nodes coloured grey).
  3. Zooming to those stops and manually checking if there should be a match. Most can be determined by aerial imagery or a duplicate name because if all other stops nearby are matched, then the remaining stop must match. For further comparison looking at the naptan:Indicator tag helps since it tells you where the stop is relative to a nearby street/feature.
  4. Re-position either the new data or old data to the correct position so that they’re near together and will be caught by conflation matching.
  5. Re-run conflation matching and then go through the actual conflation process.

Another issue you may have missed in the image above are the two stops furthest west. If you’re paying close attention, you’ll notice that the matched stops are on opposite sides of the road. This is something else to look out for when scanning the stops. It isn’t always an issue because sometimes the NaPTAN data is just off position to the wrong side of the road. However, in this case they were matched incorrectly which was determined by checking the naptan:Indicator field (again the fix is to move the data closer to the stop it should match before re-running conflation matching).

Looking Forward

I’d hope that the completion of this import inspires other areas of the UK to make use of NaPTAN data too. It’s by no means perfect, but once the data is there it becomes much easier to see the imperfections and fix them compared to creating the data from scratch (and even with imperfections it’s still considerably accurate). I would suggest that being local to the area is very beneficial to this import process since it makes conflation easier when you’re familiar with where stops are already.

The NaPTAN dataset should only become more accurate in time and so I would like to extend my script to facilitate the possibility for re-imports by matching the naptan:AtcoCode of existing nodes and preemptively conflating the data. Additionally, I’d be curious to investigate importing other types of data from the NaPTAN database.

Leave a comment or give me a message if you have any questions or thoughts!


Mapas de predios colectivos y comunitarios

Como he contado en las entradas de blog pasadas estamos en proceso de hacer el mapa del Darien Caribe Colombiano debido a la crisis migratoria que se presenta en la zona. En este proceso y debido a diferentes conversaciones con la comunidad nos pidieron del favor de indagar si los mapas que hacemos con OpenStreetMap pueden ser una buena fuente de datos para realizar la legalización de predios an

Como he contado en las entradas de blog pasadas estamos en proceso de hacer el mapa del Darien Caribe Colombiano debido a la crisis migratoria que se presenta en la zona. En este proceso y debido a diferentes conversaciones con la comunidad nos pidieron del favor de indagar si los mapas que hacemos con OpenStreetMap pueden ser una buena fuente de datos para realizar la legalización de predios antes el IGAC en Colombia. Esta pregunta nos ha llevado a acompañar varios ejercicios de medición de predios utilizando herramientas como GPS, aplicaciones como OSMTracker y OSMAnd para recoger datos. Uno de los retos que tenemos es poder lograr la precisión necesaria para que la entidad reciba los datos.

Monday, 15. July 2019

OpenStreetMap.de

Wochennotiz Nr. 468

02.07.2019-08.07.2019 OSM-Geburtstagsfeier 2006 in London – eine Karte mit (damals) korrekter Attributierung 1 | Kartendaten © OpenStreetmap OdbL 😉 In eigener Sache ERRATUM: In der Wochennotiz OSM #467 schrieben wir „Die Japan Times berichtete, dass Benin jetzt stolz darauf ist, … Weiterlesen →

02.07.2019-08.07.2019

Logo

OSM-Geburtstagsfeier 2006 in London – eine Karte mit (damals) korrekter Attributierung 1 | Kartendaten © OpenStreetmap OdbL 😉

In eigener Sache

  • ERRATUM: In der Wochennotiz OSM #467 schrieben wir „Die Japan Times berichtete, dass Benin jetzt stolz darauf ist, eine moderne digitale Karte zu haben, die die letzte Karte von 1957 ersetzt“. Tatsächlich war die Verbindung zu OSM falsch, da sie auf eine Stadt in Nigeria und nicht auf Benin im Land gerichtet war. Außerdem sind die Geodaten, die durch dieses von IGN France International geführte Projekt produziert wurden, wie in vielen ehemaligen französischen Kolonien, leider überhaupt nicht zugänglich, obwohl sie aus öffentlichen EG-Mitteln finanziert wurden.

Mapping

  • Joseph Eisenberg hat die Good Practice Wiki-Seite neu geschrieben und eine Diskussion über seine Änderungen auf der allgemeinen Talk-Mailingliste begonnen. Während die Edits mit einigen kleinen Ausnahmen weitgehend akzeptiert wurden, musste er sich Kritik für die Reihenfolge, also das Ändern vor einer Diskussion, gefallen lassen.
  • Joseph Eisenberg kündigte den Beginn der Abstimmung für seinen Vorschlag waterway=tidal_channel an.
  • Auf der Mailingliste Tagging hat Martin Koppenhoefer die Problematik des Mappens eines Features pro Element thematisiert. Er kritisiert die derzeitige Dokumentation im Wiki mit einem Beispiel, wo zwei unterschiedliche Schulen sich auf dem gleichen Grundstück befinden. Laut Wiki sollen die Gebäude einzeln gekennzeichnet und mit einem umschließenden Polygon mit einer entsprechenden Kennzeichnung versehen werden. Allerdings gibt es keine Kennzeichnung für Polygone im Bereich Bildung. Sein Vorschlag, den er zur Diskussion stellt, wäre die beiden Gebäude zu kennzeichnen und zusätzlich mit zwei überlappenden Polygonen mit dem tag amenity=school zu versehen.
  • User higa4 analysierte (ja) den japanischen Mapping-Status ab der ersten Hälfte des Jahres 2019.
  • Der lokale Mapper Maning Sambale schreibt über seine Erfahrungen und geteilten Erkenntnisse über eine kürzlich durchgeführte Feldkartierung in Lupang Arenda, Taytay, Rizal. Die Aktivität wurde zusammen mit der lokalen Dorfverwaltung organisiert, um Luft- und Straßenbilder zu sammeln, die von der Gemeinde für ihre Verwaltungs-, Entwicklungs- und Katastrophenschutzprogramme verwendet werden. Sie erwähnen die kostenlosen Workshops auf der lokalen Konferenz Pista Ng Mapa auf den Philippinen im nächsten Monat, die vom gleichen Team von freiwilligen Drohnenbetreibern geleitet werden.
  • Der Vorschlag von SilentSpike, eine Warnung in iD zu implementieren, die anschlägt wenn highway= mit landuse= verbunden ist, wird kontrovers diskutiert.

Community

  • [1] In diesem Jahr feiert OpenStreetMap am 9. August 2019 seinen 15. Geburtstag. Details zu Veranstaltungen werden im Wiki gesammelt.
  • SeverinGeo twitterte über zwei Wochen OSM-, QGIS- und Open-Data-Training in Nouakchott in Mauritanien
  • Zoe Gardner hat im Jahr 2017 mit einer Umfrage das Geschlecht und ein paar demographische Daten von Mappern erhoben und deren HDYC-Profile analysiert. Die Erkenntnisse hat sie jetzt in einem Paper veröffentlicht. Die Männer waren typischerweise die aktiveren Mapper. Bei der Verwendung einiger wichtiger Keys, die HDYC damals darstellte, gab es keine großen Unterschiede.
  • Das OSM-Forum hat einen responsiven (d.h. Smartphone-tauglichen) neuen Stil namens Victory bekommen, den man in seinem Forums-Profil unter dem Punkt „Anzeige“ aktivieren kann.
  • Das Grab-Team auf den Philippinen hat einen Mapathon veranstaltet und schreibt einen Blogbeitrag über die erfolgreiche Veranstaltung.
  • Harry Potter Wizards Unite ist ein neues ortsbezogenes Augmented-Reality-Spiel von Niantic, den Machern von Ingress und Pokémon Go. Gregory spielte das Spiel auf seinem Youtube-Kanal Mapper Diaries und versuchte herauszufinden, wie es die Daten von OpenStreetMap nutzt.
  • Die aktuelle Nominierung des diesjährigen OSM Awards endete zum 15. Juli.
  • Ein Offline-Mapathon fand am 22. Juni in Kommunarka (Moskau, Russland) (automatische Übersetzung) statt, wo vor nicht allzu langer Zeit eine neue U-Bahnstation eröffnet wurde. Fünf Personen nahmen an dieser Aktion teil. Sie gingen durch mehrere Bereiche des Dorfes und sammelten viele Informationen, die sie nun für die Bearbeitung in OSM verwenden.

OpenStreetMap Foundation

  • OSMF-Vorstandsmitglied Joost Schouppe kündigte regelmäßige Umfragen vor jeder großen OSM-Veranstaltung an. Die Umfrage ist nicht als Popularitätsumfrage gedacht, sondern um Menschen erreichen und Themen bzw. Probleme zu finden, die sonst vielleicht überhört werden.

Veranstaltungen

  • Der Frühbucherrabatt für State of the Map Tickets wurde bis zum 21. Juli 2019 verlängert.
  • Das SotM-Team meldete sich im Blog für das Programm und einer weiteren Info für eine Posteraustellung „Call for Posters“ auf der State of the Map 2019 in Heidelberg. Du solltest Deinen Vorschlag dazu bis zur Deadline am 18. August 2019 einreichen.
  • OSGeo.JP hat die FOSS4G Niigata angekündigt (ja), die vom 13.-14. September in Niigata statt finden wird. Der Call of Presentations ist bereits gestartet und endet am 31. Juli. Die Veranstaltung findet an Stelle der FOSS4G Tokyo statt.
  • Die agit2019, Symposium und Expo für angewandte Geoinformatik fand diese Tage in Salzburg statt. Der OSM & OSGeo Stand wurde aufgebaut und betrieben von Markus und Andreas, die über die Tage alle Hände voll zu tun hatten und sich schwierigen Fragen der Besucher stellen mussten. Andreas aka Geologist schaffte jedoch auch, täglich einen Bericht für die Community zu liefern. Ihr könnt dort nachlesen, wie es den beiden bei der Anreise, am 1. Tag, dem OSGeo Day, am 2. Tag und am Freitag ergangen ist. Es gibt auch einen Nachbericht von Markus aka ScubbX.
  • GeoMundus, eine kostenlose internationale Konferenz über Geospatialtechnologien, Geoinformatik und Geowissenschaften, die von Studenten des Erasmus Mundus Master’s of Science in Geospatial Technologies organisiert wird, öffnete die Registrierung. Die Konferenz findet am 29. und 30. November an der Universitat Jaume I in Spanien statt.
  • Erwin Olario lädt Menschen in Asien zur lokalen Open-Mapping-Konferenz Pista ng Mapa (Festival der Karten) ein. Die Veranstaltung findet vom 1. bis 3. August 2019 in der Foundation University, Dumaguete, Philippinen, statt.

Humanitarian OSM

  • HOT sammelt Gebäudedaten zur Messung des Expositionsrisikos in Tansania. Für die Bewertung wurden über 10.955 Gebäude digitalisiert und 20 Mapper unterstützen die Erfassung vor Ort. Der Blogbeitrag beschreibt den Hintergrund des Projekts, wie die Daten gesammelt wurden, wie sie verwendet werden und gibt einen Überblick über Probleme, die sich ergeben haben.

Ausbildung/Schulung

  • Jean-François Perrat hat eine Anleitung zur Organisation eines Mapathons oder eine partizipative Kartensitzung im Unterricht veröffentlicht (fr). Beginnend mit den Grundlagen und welche Tools zur Verfügung stehen, wird auch eine mögliche Umsetzung im Unterricht beschrieben. (automatische Übersetzung)

Karten

  • Darafei „Komяpa“ Praliaskouski schrieb auf der Mailingliste über eine Karte, die die Bevölkerungszahl mit der Anzahl von OpenStreetMap-Objekten in einem Gebiet vergleicht.

switch2OSM

  • Der Katastrophenschutz auf den Azoren nutzt OpenStreetMap zumindest während einer Übung.
  • Der Russische Radsportverband verwendete (ru) die OSM-Karte in einem Merkblatt für die Russische Radsport-Meisterschaft und den Wettbewerb, der vom 26. bis 30. Juni in Belgorod stattfand.

Open-Data

  • Hauke Stieler berichtet auf der Mailingliste Talk-de über Antworten des Landesamt für Geoinformation und Landesvermessung Niedersachsen bezüglich der Freigabe amtlicher Daten unter einer freien Lizenz und warum sich in Niedersachsen diesbezüglich nichts bewegt.
  • Nikolai Janakiev erstellte eine Online-Präsentation mit einem Vergleich von Wikidata und OSM.
  • Die Europäische Kommission hat eine Karte mit OSM-Hintergrund veröffentlicht, auf der die Unternehmensstandorte in der EU, die mit dem Mercosur handeln, dargestellt werden.
  • Der Bund und die Länder haben einen neuen Bund-Länder-Vertrag über die Nutzung der Geodaten der Länder durch Bundesbehörden abgeschlossen, worauf das Bundesamt für Kartographie und Geodäsie in einer Pressemitteilung hinweist. Michael Reichert hat den Vertrag vom BKG nach einer Informationsfreiheitsgesetz-Anfrage erhalten. Für OSM ändert sich praktisch nichts.

Programme

  • Die Entwickler von Maps.Me haben die Installation eines Kartengenerators für ihre Anwendung erheblich vereinfacht. Es wird jetzt ein Docker-Container erstellt, der es ermöglicht, neue Karten für Maps.Me zu erstellen, auch für unerfahrene Benutzer. Bisher funktioniert es nur unter Linux.
  • Mateusz Konieczny veröffentlichte seine Testergebnisse zur Interaktion neuer Benutzer mit StreetComplete (UX-Test).

Programmierung

  • iD-Nutzer sollen die Möglichkeit erhalten, die Darstellung der Daten im Editor zu ändern. Bei JOSM heißt so etwas Kartenstile (Map Styles), iD-Hauptentwickler Quincy Morgan nennt es „Lenses“.
  • Andy Allan berichtet in seinem Blog über seine Arbeiten an der OSM-Website/-API im Monat Juni. Unter anderem wurde die Verarbeitung von GPX-Uploads verbessert und ein neuen /api/versions-Aufruf eingeführt. Damit kann man ermitteln, welche Versionen die API unterstützt, es wird möglich, mehrere API-Versionen künftig parallel anzubieten.

Releases

  • iD 2.15.3 mit diversen Änderungen an Vorlagen und Prüf-/Tagänderungs-Regeln ist erschienen und auf openstreetmap.org in Verwendung.

Kennst du schon …

  • … das Mysterium um die Fläche des Vatikans? Frank Gavaerts schreibt, dass Wikipedia und „jede einzelne Quelle… sagen, es sind 44ha, einschließlich britannica.com“, aber das JOSM-Plugin misst 0,49km².
  • … das Bild der Woche auf der Hauptseite des OSM-Wikis? Bestimmt, aber weißt du auch, wie du ein Bild vorschlagen kannst? Es ist sehr einfach und hier dokumentiert.
  • … die ganze Welt in der Konsole gerendert? Über Telnet kannst du auf einen Demo-Server zugreifen, oder du betreibst die Karte bei dir selbst.
  • … das korrekte Tagging von Kraftstoffen an Tankstellen? Anstelle von gängigen Bezeichnungen und Markennamen sollten generische, weltweit einheitliche Werte verwendet werden, wie unter Key:fuel beschrieben. Trotzdem gibt es zur Zeit etwa 500 verschiedene „fuel:*“ Tags in der Datenbank, die größtenteils nicht dokumentiert sind.
  • … die Leuchturmkarte, die die Signale von Leuchttürmen auf einer Karte darstellt? Das auf GitHub verfügbare Projekt nutzt seamark:light:sequence und versucht zusätzlich seamark:light:range und seamark:light:colour auszuwerten.
  • … das Informationssystem (ru) für das kulturelle und historische Erbe des Rostower Landes (Jaroslawler Gebiet, Russland) von der Firma NextGIS? Auf der Karte findet man historische heilige Orte, Güter oder sogar Orte, an denen Heiler gelebt haben sollen. (automatische Übersetzung)
  • … die Validatoren für OSM, die der russische Mapper FreeExec erstellt hat? Auf seiner persönlichen Webseite (ru) sind unter anderem Validatoren für das Stromversorgungsnetz, Umspannwerke über 35 kV und Bahnhöfe in Russland zu finden. (automatische Übersetzung)

OSM in der Presse

  • Valeriy Trubin führt eine Reihe von Interviews mit der russischen OSM-Community fort. Diesmal sprach er mit der Gemeindebeamten aus Toljatti (Region Samara, Russland) Elena Balaschowa (ru), die die Verwendung von EMGIS-Daten in OSM erlaubte, und Anton Belitschkow (ru) aus Magnitogorsk (Region Tscheljabinsk, Russland), der seit 10 Jahren in OSM tätig ist. (automatische Übersetzung vom Interview mit Elena Balaschowa und mit Anton Belitschkow)

Weitere Themen mit Geo-Bezug

  • Alex Parsons twitterte über eine Studie, in der die Autoren die gemeldeten Probleme auf der Seite fixmystreet danach untersuchten, ob es bei den Meldungen einen Unterschied zwischen den Geschlechtern gibt. Dabei konnten sie feststellen, dass Männer eher Probleme beim Autofahren und Frauen eher beim Spazieren gehen gemeldet haben.
  • In Frankreich veröffentlichte der Conseil général de l’environnement et du développement durable einen Bericht, aus dem hervorgeht, dass die Präfekturen die Möglichkeit einer Revision der IGN-Hydrographiekarten, bei der viele kleine Flüsse beseitigt wurden, recht großzügig ausgelegt haben. In einem Land, in dem Open Data als wichtig angesehen wird, folgten viele Kritiken (1, 2, 3, 4) (fr), die Versuche zur Vermeidung von Umweltauflagen für diese Wasserstraßen hervorhoben.
  • K.M. Alexander extrahierte Kartenzeichen aus alten Karten wie der Isola di Malta aus dem Jahr 1686 oder der Terræ Sanctæ von 1660 und stellte die Zeichen unter einer CC BY 4.0 Lizenz zur Verfügung.
  • Die NZZ berichtet über den Einfluß von Google Maps bei der Darstellung von Gebietsansprüchen und Grenzkonflikten („Google-Maps-Krieg“) und was passiert, wenn aus Versehen mal eine ganze Stadt für einen Monat verschwindet …
  • theguardian.com berichtet über die App Guthook Guides, die Informationen über Wildnisregionen und Wanderwege weltweit liefert, und über die unbeabsichtigten Folgen, die durch die zunehmende Abhängigkeit der Nutzer von ihrem Handy bei der Navigation durch die Wildnis entstehen.
  • Mike berichtet auf seiner Homepage #geoObserver, dass trotz Ausfall einer Quelle die Erstellung von Schwarzplänen aus OSM-Daten, mittels einer Overpass Turbo-Abfrage, auch innerhalb QGIS, kein großes Problem ist.
  • Ein Video über die neuen Funktionen von QGIS 3.8 (Zanzibar).

Wochenvorschau

Wo Was Wann Land
Dortmund Mappertreffen 2019-07-12 germany
Bonn Bonner Stammtisch 2019-07-16 germany
Lüneburg Lüneburger Mappertreffen 2019-07-16 germany
Viersen OSM Stammtisch Viersen 2019-07-16 germany
Mannheim Mannheimer Mapathons e.V 2019-07-17 germany
Bremen Bremer Mappertreffen 2019-07-22 germany
Lübeck Lübecker Mappertreffen 2019-07-25 germany
Düsseldorf Stammtisch 2019-07-31 germany
Heidelberg Erasmus+ EuYoutH OSM Meeting 2019-09-18-2019-09-23 germany
Heidelberg HOT Summit 2019 2019-09-19-2019-09-20 germany
Heidelberg State of the Map 2019 [3] 2019-09-21-2019-09-23 germany

Hinweis:
Wer seinen Termin hier in der Liste sehen möchte, trage ihn in den Kalender ein. Nur Termine, die dort stehen, werden in die Wochennotiz übernommen. Bitte prüfe die Veranstaltung in unserem öffentlichen Kalendertool und korrigiere bitte die Einträge im Kalender, wenn notwendig.

Diese Wochennotiz wurde erstellt von Nakaner, Rainero, Rogehm, SK53, Silka123, SunCobalt, derFred, doktorpixel14, geologist.


OpenStreetMap User's Diaries

Multi-way generalisation (collapse)

When two ways (two railways, or two parts of a motorroad) are close together they start overlapping at some point when going to smaller scale, like railway in this picture: ♦

Cartographic fix for this is to make one way instead of two (or more). One of the simplest ways to do that is to create a buffer and then calculate medial axis (standard functionality of PostGIS): ♦ (here blue lines

When two ways (two railways, or two parts of a motorroad) are close together they start overlapping at some point when going to smaller scale, like railway in this picture: Railway mess

Cartographic fix for this is to make one way instead of two (or more). One of the simplest ways to do that is to create a buffer and then calculate medial axis (standard functionality of PostGIS): Way generalisation (here blue lines - initial ways, black one - generalised)

This way the map is more legible, and for vector tiles - it is smaller - therefore faster to download and gives less load on cpu on client side: Fixed railway Check the change live in the topographic map 13+ - non generalised ways, 12.99- - generalised ways.

NOTE: The same generalisation operation has to be done with roads.

Sunday, 14. July 2019

OpenStreetMap User's Diaries

Working on my home city

After seeing how lacking the map of my hometown is, today I started to add shops and amenities one by one on the ground using OSMAnd and uploading them instantly or when at home, then fixing the incorrect ones using JOSM.

I believe I can add quite a lot if I do this everyday as the city is pretty small but some hand would surely be welcome.

After seeing how lacking the map of my hometown is, today I started to add shops and amenities one by one on the ground using OSMAnd and uploading them instantly or when at home, then fixing the incorrect ones using JOSM.

I believe I can add quite a lot if I do this everyday as the city is pretty small but some hand would surely be welcome.


Peter Reed

Littlemill limekilns

♦A pleasant ride today, passing this massive structure on the way to Embleton. This is one of the largest 19th century limekilns in the country. They built it next to the railway, so that lime could be loaded directly from the kiln onto wagons, and it remained in service for about a century - until shortly after World War II.

As I settle into this loop as a fairly regular ride it seems to be
A pleasant ride today, passing this massive structure on the way to Embleton. This is one of the largest 19th century limekilns in the country. They built it next to the railway, so that lime could be loaded directly from the kiln onto wagons, and it remained in service for about a century - until shortly after World War II.

As I settle into this loop as a fairly regular ride it seems to be getting easier. Is that because it's becoming more familiar, or because I'm getting stronger? I have no idea, but it was a pleasant afternoon, and another seventeen miles bumped my Eddington number for 2019 up by one.

OpenStreetMap User's Diaries

Trabalho de campo para validação do mapeamento

No último mês fiz um trabalho de campo na área rural do município de Arcos(MG) para validação de algumas áreas que eu estava em dúvida.

O campo é uma atividade sempre muito rica que permite encontrar detalhes impossíveis na imagem de satélite. Infelizmente somente eu estou mapeando a área e vai levar um tempo até que eu consiga fazer o maepamento do município da forma mais detalhada poss

No último mês fiz um trabalho de campo na área rural do município de Arcos(MG) para validação de algumas áreas que eu estava em dúvida.

O campo é uma atividade sempre muito rica que permite encontrar detalhes impossíveis na imagem de satélite. Infelizmente somente eu estou mapeando a área e vai levar um tempo até que eu consiga fazer o maepamento do município da forma mais detalhada possível.

Esse primeiro campo foi concentrado na parte norte do município, nas áreas próximas ao Rio São Francisco. Foram identificadas os tipos de vegetações e se algumas áreas deveriam ser classificadas como brejo, mangue, ou apenas zona úmida. Foram também identificadas áreas de pasto de gado.

Utilizei um smartphone para marcar os pontos, o que compromete um pouco a prcisão, mas por se tratar de um campo de reconhecimento daquilo que foi mapeado na imagem de satélite, utilizei pontos de referência das imagens de satélite como pontos de coleta das coordenadas.

Vou estudar a possibilidade de adiquirir um GPS, usado ou novo para me auxiliar nos próximos trabalhos de campo. Se alguém da comunidade souber me indicar algum equipamento com bom custo benefícios seria de grande ajuda.

Forte abraço à comunidade OSM


weeklyOSM

weeklyOSM 468

02/07/2019-08/07/2019 OSM at the birthday party 2006 in London – map with (at that time) correct attribution 1 | Map data © OpenStreetmap OdbL 😉 About us ERRATUM: In weeklyOSM #467 we wrote “The Japan Times reported that Benin is now proud to have a modern digital map to replace the last map from 1957”. […]

02/07/2019-08/07/2019

Logo

OSM at the birthday party 2006 in London – map with (at that time) correct attribution 1 | Map data © OpenStreetmap OdbL 😉

About us

  • ERRATUM: In weeklyOSM #467 we wrote “The Japan Times reported that Benin is now proud to have a modern digital map to replace the last map from 1957”. Actually the link to OSM was wrong, as it directed to a city in Nigeria and not to Benin the country. Besides this, the geodata produced through this project led by IGN France International, as in many former French colonies, is unfortunately not open at all, despite it have been part funded by public EU funds.

Mapping

  • Joseph Eisenberg has rewritten the Good Practice wiki page and started a discussion about his changes at the general Talk mailing list. While the edits were broadly accepted with some minor exceptions, he was criticised for editing before discussing the changes.
  • Joseph Eisenberg announced the start of voting for his proposal for the tag waterway=tidal_channel.
  • User higa4 analyzed (ja) the state of Japanese mapping as of the first half of 2019.
  • Maning Sambale wrote about his visit with other Philippine colleagues in Lupang Arenda, Taytay, Rizal and shared insights about the field mapping activity organised with the local village government to collect aerial and street-level imagery for use by the community in their governance, development, and disaster preparedness programmes. He mentions the free workshops in next month’s Pista Ng Mapa local conference in the Philippines, which will be facilitated by the same team of volunteer drone operators.
  • SilentSpike’s suggestion to implement a warning in iD when landuse is connected to highways was discussed and, as usual, there are diverse opinions..

Community

  • [1] This year OpenStreetMap will celebrate its 15th birthday on 9 August 2019. Details on the celebration events are being collected at the wiki.
  • SeverinGeo published a Twitter moment about two weeks of OSM and free Geomatics training in Nouakchott (Mauritanie) targeted to the local OSM community and stakeholders from the research, development and local authorities. The courses were facilitated with the help of members of Nigerian and Senegalese communities with the support of the International Organisation of Francophonie (OIF).
  • In 2017, Zoe Gardner conducted a survey on the gender and some further demographic data of mappers and analysed their HDYC profiles. Her detailed findings have now been published in a peer-reviewed paper. Men were typically the more active mappers. There were no major differences between genders in the use of some of the important keys that HDYC represented at the time.
  • The OSM Forum now has a responsive (i.e. suitable for smartphones) style called Victory. You can enable it in your forum profile at the item “Display”.
  • The Grab team in the Philippines hosted a mapathon and describe the successful event in a blog post.
  • Harry Potter Wizards Unite is a new location-based augmented reality game from Niantic, the creators of Ingress and Pokémon Go. Gregory played the game on his Mapper Diaries channel and took a look at how it uses OpenStreetMap data.
  • A reminder that nominations for the annual OSM Awards can be submitted until 15 July.
  • An offline mapathon took place (translation) on 22 June in Kommunarka (Moscow, Russia), where a new metro station was opened recently. Five people took part in this activity. They walked through several areas of the village and collected a lot of information, which they now use for editing this area in OSM.

OpenStreetMap Foundation

  • OSMF board member Joost Schouppe announced that the board will carry out regular surveys ahead of every major OSM event. The survey is not meant as a popularity poll but to listen to people, who otherwise might not be heard.

Events

  • The early bird discount for State of the Map tickets has been extended until 21 July 2019.
  • The SotM team published a “Call for Posters” for the poster exhibition at State of the Map 2019 in Heidelberg. You should submit your proposal by 18 August 2019. In a blog post the team also announced the release of the SotM programme.
  • OSGeo.JP (ja) announced FOSS4G Niigata (ja), which will be held on 13 and 14 September, and has started a call for presentations with a deadline of 31 July. This year the event will be held in Niigata instead of at FOSS4G Tokyo.
  • The agit2019 (translation), Symposium and Expo for Applied Geoinformatics took place last week in Salzburg. The OSM & OSGeo exhibition stand was set up and operated by Markus and Andreas, who had their hands full over the days and had to respond to sometimes difficult questions from visitors. Andreas, aka Geologist, also managed to deliver a daily report for the community. Please follow how the two of them arrived (translation) on the 1st day (translation), the OSGeo Day (translation), the 2nd day and Friday (translation). And a post-report (translation) from Markus aka ScubbX.
  • GeoMundus, a free international conference about Geospatial Technologies, Geoinformatics, and Geosciences, which is organised by students from the Erasmus Mundus Masters of Science in Geospatial Technologies, opened for registration. The conference will take place on 29 and 30 November at the Universitat Jaume I in Castellón de la Plana, Spain.
  • Erwin Olario invites people in Asia to the local open mapping conference Pista ng Mapa (Festival of Maps). The event will take place on 1 to 3 August 2019 at the Foundation University, Dumaguete, Philippines.

Humanitarian OSM

  • HOT is collecting building outlines to measure exposure risk in Tanzania. For the assessment, mappers digitised more than 10,955 buildings and 20 mappers collected data on the ground.The blog post outlines the background of the project, how the data was gathered and how it will be used, and gives an idea of the challenges faced.

Education

  • Jean-François Perrat has published (fr) a guide to the organisation of a mapathon or a participatory map session in class. Starting with the basics and what tools are available, a possible implementation in class is also described. (automatic translation)

Maps

  • Darafei “Komяpa” (Kotyara) Praliaskouski wrote about a map displaying a density comparison between population and the count of OpenStreetMap objects.

switch2OSM

  • The Civil Protection in the Azores used OpenStreetMap, at least during an exercise.
  • The Russian Cycling Federation used (ru) an OSM map in a leaflet for the Russian Cycling Championship and Competition which took place in Belgorod on 26 to 30 June.

Open Data

  • Nikolai Janakiev created an online presentation with a comparison of Wikidata and OSM.
  • The European Commission has published a map with an OSM background displaying company locations in the EU which are trading with Mercosur, the South American trade bloc.

Software

  • The developers of Maps.Me have significantly simplified the process of installing a map generator for their application. It’s now available as a docker-container which allows the creation of fresh maps for Maps.Me even for inexperienced users. It currently only works on Linux.
  • Mateusz Konieczny posted results of testing how new users interact with StreetComplete (UX testing).

Programming

  • iD users may become able to change the style of the map in the editor. The iD maintainer Quincy Morgan calls the feature, which is similar to “Map Styles” in JOSM, “Lenses”.
  • Andy Allan blogged about his work on the OSM website/API in June. Among other things, the processing of GPX uploads was improved and a new /api/versions call was introduced. This new call allows users to find out which versions the API supports and makes it possible to run multiple API versions in parallel.

Releases

  • The iD team has released version v2.15.3 of the popular editor. The changes in the new version, which is already in use at osm.org, are detailed at GitHub.

Did you know …

  • The Vatican City is the source of many mysteries. The area of the small country seems to be one of these. Frank Gavaerts claims that Wikipedia and “every single source … says it’s 44 ha, including britannica.com” but the JOSM plugin measures 0.49 km².
  • You have probably seen the Image of the week on the OSM main wiki page but do you know how you can propose an image? It’s very simple and documented here.
  • … that you can have the whole world rendered in the console? You can access a demo server via Telnet, or you can run the map yourself.
  • … how to tag the fuels available at a petrol station? It’s recommended to use generic names for different types of fuel instead of local names or brands to keep the data consistent world-wide. The Wiki documents these values, but in total there are more than 500 different “fuel:*” tags in use – most of them undocumented and used only a few times each.
  • … the Beacon map which animates how they look and blink? The GitHub hosted project uses seamark:light:sequence and also uses the seamark:light:range and seamark:light:colour tags.
  • …that the Russian company NextGIS created (ru) an information system of cultural and historical heritage of Rostov land (Yaroslavl region, Russia)? On the map you can find historical places, sacred places, estates and even places where healers lived. (automatic translation)
  • … that the Russian mapper FreeExec has created a lot of validators for OSM? You can find (ru) on his personal website: a visualisation of the Russian Federation’s power supply grid, the validation of substations over 35 kV, railway stations of Russia and many other things. (automatic translation)

OSM in the media

  • Valeriy Trubin continues his series of interviews with the Russian OSM community. This time he talked to the municipal official from Tolyatti (Samara region, Russia) Elena Balashova (translation), who allowed the use of EMGIS data in OSM, and Anton Belichkov (translation) from Magnitogorsk (Chelyabinsk region, Russia), who has been an OSM mapper for 10 years.

Other “geo” things

  • Alex Parsons tweeted about a study in which the authors analysed the problems reported on the fixmystreet website to see whether there was a difference in reporting between the sexes. They found that men were more likely to report problems related to driving and women more likely to report problems related to walking.
  • In France, the conseil général de l’environnement et du développement durable published (translation) a report indicating that the prefectures have interpreted quite liberally the possibility of revising IGN hydrography maps, eliminating many small rivers. In a country where Open Data is considered important, many criticisms followed (1 translation , 2 translation, 3 translation, 4 translation) (fr) highlighting attempts to avoid the environmental obligations for these waterways.
  • K.M. Alexander extracted icons from old maps such as Isola di Malta, from 1686, or Terræ Sanctæ, from 1660, and made the icons available under a CC BY 4.0 licence.
  • The NZZ reports about the influence of Google Maps on the representation of territorial claims and border conflicts (“Google Maps war”) and what happens if an entire city disappears by mistake for a month… (automatic translation)
  • The Guardian features an article about the app Guthook Guides, which provides information on hikes, wilderness regions and trails worldwide, and the unintended consequences caused by the increasing reliance of users on their phones when navigating through the wilderness.
  • Mike reports (translation) on his homepage #geoObserver that, despite the disappearance of one method, the creation of building footprint maps from OSM data using an overpass turbo query, even within QGIS, is not a big problem.
  • A video about the new features of QGIS 3.8 (Zanzibar).

Upcoming Events

Where What When Country
Dortmund Mappertreffen 2019-07-12 germany
Cologne Bonn Airport Bonner Stammtisch 2019-07-16 germany
Lüneburg Lüneburger Mappertreffen 2019-07-16 germany
Viersen OSM Stammtisch Viersen 2019-07-16 germany
Mannheim Mannheimer Mapathons e.V 2019-07-17 germany
Maebashi 第1回 MissionDayまえばし マッピングパーティ 2019-07-20 japan
Bremen Bremer Mappertreffen 2019-07-22 germany
Nottingham Nottingham pub meetup 2019-07-23 united kingdom
Reading Missing Maps Reading Mapathon 2019-07-23 united kingdom
Salt Lake City SLC Map Night 2019-07-23 united states
Maebashi 第1回 MissionDayまえばし もくもく会 2019-07-23 japan
Lübeck Lübecker Mappertreffen 2019-07-25 germany
Santa Fe State of the Map Argentina 2019 2019-07-27 argentina
Kamakura 鎌倉マッピングパーティ 2019-07-27 japan
Düsseldorf Stammtisch 2019-07-31 germany
Dumaguete Pista ng Mapa 2019 2019-08-01-2019-08-03 philippines
Minneapolis State of the Map U.S. 2019 [2] 2019-09-06-2019-09-08 united states
Edinburgh FOSS4GUK 2019 2019-09-18-2019-09-21 united kingdom
Heidelberg Erasmus+ EuYoutH OSM Meeting 2019-09-18-2019-09-23 germany
Heidelberg HOT Summit 2019 2019-09-19-2019-09-20 germany
Heidelberg State of the Map 2019 [3] 2019-09-21-2019-09-23 germany
Wellington FOSS4G SotM Oceania 2019 2019-11-12-2019-11-15 new zealand
Grand-Bassam State of the Map Africa 2019 2019-11-22-2019-11-24 ivory coast

Note: If you like to see your event here, please put it into the calendar. Only data which is there, will appear in weeklyOSM. Please check your event in our public calendar preview and correct it, where appropriate.

This weeklyOSM was produced by Elizabete, Nakaner, PierZen, Polyglot, Rogehm, SK53, SeverinGeo, Silka123, SunCobalt, TheSwavu, YoViajo, derFred, geologist, jinalfoflia, k_zoar, muramototomoya.


OpenStreetMap User's Diaries

Anchorage AK OCM group?

Soliciting FB folk to get together to get more data into OSM for OCM use (www.facebook.com/groups/anchorbike/?multi_permalinks=390920768438984&notif_id=1563078024658217)

Soliciting FB folk to get together to get more data into OSM for OCM use (https://www.facebook.com/groups/anchorbike/?multi_permalinks=390920768438984&notif_id=1563078024658217)

Saturday, 13. July 2019

OpenStreetMap Blog

Call for help with translations of blog posts and surveys

Would you like to translate posts on blog.openstreetmap.org? Or see surveys from the OpenStreetMap Foundation in your language..? This is a call to community members who have helped with translations in the past or want to help now. You can translate as many old or new blog posts as you like – expressing an interest […]

Would you like to translate posts on blog.openstreetmap.org? Or see surveys from the OpenStreetMap Foundation in your language..? This is a call to community members who have helped with translations in the past or want to help now.

  • You can translate as many old or new blog posts as you like – expressing an interest does not mean you have to translate every new post.
  • We would like to encourage people to collaborate! If more than one person can do a translation, we would be thrilled if you work together.

Blog post translations

We’d like to make the official blog at blog.openstreetmap.org available in more languages, and for some of the existing languages we’d need to catch up on translations of recent blog posts. These are straightforward and we will provide initial guidance.

Extra help needed for translations of surveys

For surveys we need help both in translating the questions, as well as the answers. For that reason we would be thrilled if local communities decided to form small groups that will volunteer to help us. Please note that as anyone who helps with surveys will have access to information that people might want to keep private, you will have to sign a non-disclosure agreement.

The OpenStreetMap Foundation will start doing surveys 2-3 times per year. The next one is planned just before the State of the Map 2019 conference and translation of questions will start this week.

Next step

Want to help?
Please send us an email to communication@osmfoundation.org 
with subject: Helping with translations in [your language]
and indicate whether you want to help with translations of blog posts, surveys or both.

Thank you!

Communication Working Group

The OpenStreetMap Foundation is a not-for-profit organisation, formed in the UK to support the OpenStreetMap Project. It is dedicated to encouraging the growth, development and distribution of free geospatial data for anyone to use and share. The OpenStreetMap Foundation owns and maintains the infrastructure of the OpenStreetMap project, is financially supported by membership fees and donations, and organises the annual, international State of the Map conference. It has no full-time employees and it is supporting the OpenStreetMap project through the work of our volunteer Working Groups. Please consider becoming a member and read about our fee-waiver program.


OpenStreetMap User's Diaries

(US) State Parks: Searching for common ground

(US) State Parks: Searching for Common Ground DRAFT FOR COMMENTS: Please do not treat as a formal proposal! Introduction

For as long as I’ve been a participant on the OpenStreetMap project, the subject of what to tag a ‘State Park’ in the US has been fraught with controversy. (In some areas, there are equally controversial facilities named ‘county park’, ‘town park’ and so on with similar str

(US) State Parks: Searching for Common Ground

DRAFT FOR COMMENTS: Please do not treat as a formal proposal!

Introduction

For as long as I’ve been a participant on the OpenStreetMap project, the subject of what to tag a ‘State Park’ in the US has been fraught with controversy. (In some areas, there are equally controversial facilities named ‘county park’, ‘town park’ and so on with similar structure but administered by a still lower level of government.)

In this post, I try to find a common thread that can hopefully be used as a common foundation for all parties discussing the issue. Some of the specific examples given will be New York-centric. I apologize in advance for the fact. I am a native New Yorker, and I use examples with which I am familiar. I strongly prefer to map in places where I have boots on the ground - by which I usually mean literal boots on the literal ground. I have trodden the soil of all the places that I use as examples.

Proposal summary

State Parks should, as a ‘lowest common denominator’ be tagged with boundary=protected_area protect_class=21 (This combination would be the minimum necessary for rendering. Ordinarily, a state park would also have some combination such as protection_object=recreation protection_title="State Park"

Background

One issue driving much of the controversy behind State Park tagging is that none of the ‘land use’ terms really fits. Many State Parks in the US are multipurpose recreational facilities. Portions of them may fit well with leisure=park (often understood to be a human-sculpted landscape crafted for visual enjoyment), landuse=recreation_ground, leisure=nature_reserve, leisure=golf_course, leisure=camp_site, tourism=museum, and many other things. This is because a common pattern is that a State Park will usually be a multipurpose facility intended to draw residents into outdoor pursuits. A typical one include a section that is preserved in a natural state for pursuits such as hiking and birdwatching, as well as sections with sport pitches, swimming or boating facilities, picnic areas, perhaps a campground, perhaps a band shell or amphitheatre, concessions, playgrounds, perhaps a golf course, perhaps a section reserved for summer youth programs (day or residential). Museums on site are not too uncommon. Some of the larger ones host restaurants, rental cabins and inns. The developed parts of the park can be referred to as ‘front country’ facilities, in contrast with the ‘back country’, which is nearly devoid of such comforts, offering hiking trails, a wilderness-like experience - and very little else.

Some tagging purists will say that only these individual facilities ought to be mapped: that a State Park needs to be carved up into the areas that host the disparate activities and all need to be mapped separately. This approach is probably the most formally correct. Nevertheless, it has a few drawbacks. Chief among these is that a State Park does have an existence as a whole. There is an object out there in the world, which ordinarily will have signs directing travelers to it and announcing its presence, whose name is familiar to not only those in its immediate vicinity but those in the broader community that it serves. Speaking about the ‘Trailside Zoo’ or the ‘Fort Clinton Museum’ to a Downstate New Yorker is likely to get you a blank look. Adding, ‘in Bear Mountain State Park’ will then make the object suddenly recognizable. It is the park that is known by name and boundaries, not the facilities within it. Requiring that the parts be mapped instead of the whole also gives rise to an attitude that the facility must be micro-mapped in order to be mapped at all. The common mapper pattern of ‘fill in the map with broad brush strokes, then paint in the details’ does not work if there is no colour that may go on the broad brush!

Previous disputed approaches

This desire to tag the whole facility leads mappers to force-fit tagging that is at best controversial and at worst inappropriate. This has typically sorted out into several things.

  1. leisure=park This term is frequently used sensu lato by mappers to denote any government-run facility for outdoor recreation, not just for the sculptured landscape that many other mappers expect sensu stricto. This particular tag is used widely enough that one must conclude that it is ‘broadly accepted’ by a subset of the community. Nevertheless, the argument that it is a tag misuse is a compelling one, however broadly the tag has been applied. The tagging certainly feels wrong for a facility such as Bethpage State Park in New York, which is largely taken up by a golf course!

  2. leisure=nature_reserve Since State Parks often contain some ground that is left in essentially a natural state (the amount may range from a few hectares to hundreds of square kilometres), and since one aspect of a State Park is protection from development, this tagging is at least plausible for many of them. Nevertheless, it is surely not right for the ‘front country’ portions such as recreation grounds and campgrounds. ‘Nature reserve’ can be applied to a lot of things, but for most State Parks it is either being stretched to be breaking point or else woefully non-specific.

  3. boundary=national_park This tag actually appears to fit a few State-run facilities, at least if one takes a broad reading of the definition on the Wiki: ‘a relatively large area of land declared by a government […], to be set aside for human recreation and enjoyment, as well as the protection of the natural environment and/or cultural heritage of an area.’ I make the case elsewhere that there are at least a couple of State facilities for which no other tagging really fits. The two that I discuss in particular, the Adirondack and Catskill Parks in New York, arguably were the prototype for the US National Park System. They (along with Yellowstone, which became a ‘national’ park because Wyoming was not yet a state, and Yosemite, which was a State Park before being deeded to the Federal government in 1906) are arguably the prototypes of the US National Park system. They bear all the indicia of a national park with the exception of which sovereign has designated them. I happen to believe that a case could be advanced that a few of New York’s State Parks (enormous ones like Allegany or Harriman, or spectacular ones like Watkins Glen or Niagara Falls) could be marked with the boundary=national_park label, but I have not done so. Part of the reason is that it would open the floodgates to a torrent of mistagging. There is no way that a suburban recreation facility like Hempstead Lake or Nyack Beach would fit the boundary=national_park designation other than by stretching the meaning of the tag beyond the breaking point. It is certainly not universally applicable to State Parks.

  4. park:type=* in combination with one or another of the above tags has been proposed, and gained some traction, but is not in truly wide use. Its use has also faced heated controversy. The tag was an early attempt to communicate the ideas that we now have codified with ownership=* and protection_title=*. Its free-form nature, the lack of documentation in the Wiki until recently, and the invented values that it accumulated as a result, meant that it failed to offer clarity. The newer tagging schemes have largely supplanted it, and park:type=* should be viewed as close to being deprecated.

A new look at the problem

With all of these ideas essentially proving a failure in the general case, it’s necessary, I think, to step back and ask:

Is there any attribute that all State Parks have in common, that pretty much all mappers would agree on, even as other attributes might vary widely?

Is there any existing, more-or-less established, tagging that could represent that attribute?

When I look at the problem from that perspective, I realize - quite surprisingly - that there just may be an answer to those two questions that could establish at least a fundamental, widely agreed (if not widely implemented) foundation on which to build. That attribute is protection. One indicator that a State Park almost certainly has is that it is protected from development to preserve its value to the community as a recreational resource. I would therefore argue boundary=protected_area is a tag that all might be persuaded to accept. I don’t claim that it could possibly resolve the controverses over ‘what is a park,’ ‘what is a nature reserve,’ or ‘what is a national park.’ It surely cannot. But if there is even one single tag which all can accept as ‘not wrong, not a falsehood’, then there is something that mappers can use, secure that it can persist beneath the cacophony of arguments over what else to call the thing - arguments in which, I argue above, none of the proponents is entirely right.

I anticipate the counterargument, “How can you call a place that has been cleared for playing fields, had a pond excavated and dammed for swimming, and even had a hotel built on it, a ‘protected area’?” I believe that argument is founded in the idea that all ‘protected areas’ are what the Wiki page calls nature protected area (i.e., ‘protect_class=1a’ through ‘protect_class=7’, plus the special classes 97, 98 and 99). The typical State Park is not one of these. Farther down the page, however, we see another major classification: social protected area - and within that, protect_class=21 ‘Community life’, with recreation being stated as one of the protection objects that may be recognized within the class. The typical State Park is indeed protected for the sake of community life, and reserved for public recreation. “Parks and recreation”, indeed, is a typical title for the government department that administers them. They may not have their natural landscape protected in any way - indeed, they may be an entirely artificial landscape. (Indeed, (Riverbank State Park)[https://www.openstreetmap.org/way/118524694] is built entirely on the roof of Manhattan’s massive sewage treatment plant.) But the areas are protected in the sense that there will be intense political repercussions if anyone were to propose strip mining them, building condos, opening a shopping mall, or condemning them for a freeway. They are indeed ‘protected for community life’, with the object of ‘recreation’.

Proposed tagging

I would therefore propose that a ‘lowest common denominator’ acceptable tagging for State Parks would be:

boundary=protected_area protect_class=21

This pair would be the minimum to determine the rendering. Usual additions would include:

protection_object=recreation protection_title=State Park operator=State of XXX (or Commonwealth of XXX for Kentucky, Massachusetts, Pennsylvania, and Virginia) site_ownership=state protected=perpetual

together with whatever other common tagging (name=*, wikipedia:en=*, website=*, opening_hours=*, etc.) is deemed appropriate.

Each of these tags represents a fact that can be established objectively - in fact, the first group is practically implied by the name, ‘State Park’ (ignoring anomalies such as Donald J. Trump State Park which is best described as landuse=brownfield).

Current state of the tag usage

The protect_class=21 tag is already in use. As of this writing, taginfo shows 571 features with the tag.

This statement, is however, somewhat disingenuous, because virtually all of the features with the tag have it because I put it there! I did so because I was editing the features for other reasons, and decided to follow my reading of the Wiki’s boundary=protected_area guidelines. The only public discussion that this protect_class has received in my edits is that when I proposed reimporting the NYS DEC Lands shapefile, I proposed that protection class for State Multiple Use Area, State Fishing Access Area, the corridors protecting recreational trails, and the easements for access to landlocked parcels open to public recreation. There were few if any comments on this particular aspect of the proposal. I also at one point conducted an audit of New York’s State Parks and State Historic Sites, establishing some uniform tagging (for instance, directing the website=* on all of them to the appropriate page on https://parks.ny.gov/. I added the protected_area tagging to these at the same time. (I also added protect_class=22 for State Historic Sites.) Using taginfo to answer that question is for me, therefore, simply listening to an echo.

With that said, adopting the tag will give rise to extremely little conflict. Using Overpass Turbo, for instance, I see the tag on only three objects in Europe: a church in Boguslav, Ukraina, and tiny parcels of open space in Athens and the Balearic Islands. There are also a handful of uses in North America outside New York that all appear to be compatible with the proposed scheme. In short, this portion of the tag space appears, if you will pardon the pun, to be a green field for future development.

Rendering

protect_class=21 is not one of the classes that is currently rendered in OSM-Carto, (which handles only classes 1a through 6, if memory serves). I am optimistic that if this proposal gains traction, eventually the rendering will follow. What I think might work for is an appearance similar to what is used for a nature reserve, except that instead of the deep green highlight on the interior side of the boundary line, a pale green highlight suggestive of the infill of leisure=park (#c8facc) might be appropriate. It is important to note that this suggestion comes from a colour-blind mapper, so someone with an artist’s eye had better review it! I am advised by the OSM-Carto maintainers that if this tagging becomes popular, the change is a relatively simple one to make.

As a more problematic side issue, OSM-Carto does not at present render boundary=protected_area, boundary=national_park or boundary=aboriginal_lands when they appear on simple closed ways. This is a known issue. Because there is already a pull request with the necessary changes, I am confident that it will be resolved eventually. Nevertheless, it will take longer to fix than simply adding the rendering of class-21 protected areas, because it requires a rebuild of the database that drives the tile server. Since this is an operation that requires months of planning (and significant server downtime), it is contemplated only once every few years - and no such rebuild is scheduled at present. In the meantime, a workaround would be either to make sure that the boundary=protected_area tag appears only on multipolygons (creating a multipolygon comprising only a single polygon if necessary) or forcing the correct rendering by including area=yes.

In short, the rendering issue is still a bit open. Still, just as we eventually got at least some rendering for boundary=protected_area, I am confident that protect_class=21 can follow.

Interim tagging

As a stopgap measure, until the renderer catches up with this idea, it’s possible to combine the boundary=protected_area tagging with a tag that approximates the land use. As previously mentioned, appropriate tags may include landuse=recreation_ground, leisure=nature_reserve, or leisure=park (or any description of the principal function; leisure=camp_site, leisure=golf_course, or amenity=museum would be good descriptions of some features under the general umbrella of ‘State Park’).

A necessary intermediate step will be that State Parks (aside from ‘corner cases’ like the ones in the earlier diary entry) will have to give up the boundary=national_park tag, in order not to conflict with the incoming boundary=protected_area tag. They, too, can acquire one of the inaccurate tags listed above, in order that they will not disappear from the map as a result of the tag conflict.


Skattkärr

Har lagt till adresser på några byggnader i Skattkärr och angivit lite övrig data till byggnader jag råkade känna till.

Har lagt till adresser på några byggnader i Skattkärr och angivit lite övrig data till byggnader jag råkade känna till.

Friday, 12. July 2019

OpenStreetMap User's Diaries

Валидатор 3D: Церкви и другие здания

Няшки мои, всем привет кого давно не видел!

Запилил новый валидатор: он проверяет наличие 3D-моделей для церквей и некоторых других исторических зданий. Почему церкви? Потому что это наиболее заметные объекты и для их моделирования есть фотографии на temples.ru.

На данный момент в валидацию включены отдельные районы Московской, Владимирской и Ярославской областей, т.е. то, что по

Няшки мои, всем привет кого давно не видел!

Запилил новый валидатор: он проверяет наличие 3D-моделей для церквей и некоторых других исторических зданий. Почему церкви? Потому что это наиболее заметные объекты и для их моделирования есть фотографии на temples.ru.

На данный момент в валидацию включены отдельные районы Московской, Владимирской и Ярославской областей, т.е. то, что попадает в квадратный градус [56°, 38°]

Например, видно, что в Сергиево-Посадском районе 3D-модели есть для 32 церквей из 92 (я ими занимался), а например в соседней Владимирской области совсем глухо. Так что если вы не знаете, чем заняться – знайте, ваша помощь всегда кстати. :)

Если будет интерес к теме, можно будет добавить другие регионы и какие-то другие проверки.

Валидатор доступен здесь: 3dcheck.zkir.ru. Обновляться будет раз в неделю вручную.



OpenStreetMap Community Form

Recently the OSM group over at Telegram crafted a form for OSM editors with the goal of knowing our community a little better. This form questions who you are, how you work and if you have any feedback to any OSM services. Please share this so we can reach every type of mapper and get the whole picture! :)

The form is available here

The data will be published here 11th August, 20

Recently the OSM group over at Telegram crafted a form for OSM editors with the goal of knowing our community a little better. This form questions who you are, how you work and if you have any feedback to any OSM services. Please share this so we can reach every type of mapper and get the whole picture! :)

The form is available here

The data will be published here 11th August, 2019, with indefinitive graphs and sneak peaks on Telegram every week till then. Username and date of submissions will not be connected with individual answers in the final results.

You can join the OSM Telegram group to stay up to date!

Syver


GSoC 2019 - SVG texture support & making external Fonts configurable - OSM2World

Intoduction

SVG texture support was an important part of for this Google Summer of Code project. Apart from the reasons mentioned in the application document, on why adding Scalable Vector Graphics support would be benefitial, its true importance lays on this fact: Most Wikimedia CC0 available images are SVG files. That would also be the reason that led in “swapping” priorities between the 3d an

Intoduction

SVG texture support was an important part of for this Google Summer of Code project. Apart from the reasons mentioned in the application document, on why adding Scalable Vector Graphics support would be benefitial, its true importance lays on this fact: Most Wikimedia CC0 available images are SVG files. That would also be the reason that led in “swapping” priorities between the 3d and 4th task listed in the application; SVGs had to be supported if users were to make use of textures provided in traffic sign catalogues like this one.
By the end of it, this task ended up leaving some extra time in our hands, presenting a good opportunity to implement another useful functionality: Make external fonts configurable and able to be registered in the application. (Note: “external” refers to fonts not supported by default in the user’s OS). The need for a functionality like this (mostly) derived from the fact that texts on traffic signs use fonts not so widespread (e.g. Interstate) but it can also come in handy in many other cases as well.
The changes described bellow can be found under the July 12 2019 commits of this feature’s branch.
So, with that out of the way, let’s see how everything got blended into the project:

SVG textures support

The concept of implementing svg textures support was pretty straightforward: a really good support for png images already exists, that of course works with all target outputs of OSM2World; so converting svgs to pngs to make further use it would be the best course of action. As of the latest updates described in a previous diary entry, image layers in a texture are now of the ImageTextureData type. That of course makes ImageTextureData.java the appropriate class to implement such a mechanism.
A couple of changes took place in that class:

  1. A new private field private File convertedToPng was introduced to hold the file created after the conversion
  2. The private method private File SVG2PNG(File svg) was created to implement the actual conversion

The usual way of converting files from one type to another is through “Transcoding” methods; their name speaks for itself. For svgs such methods (and classes) come with svg libraries, like the one used in this case, Apache Batik. The Batik transcoders need a new File object to write the png to and those new files were deemed to also be temporary ones i.e. be deleted once the application terminates.
Apart from that, the getFile() method in ImageTextureData was extended to the state presented below and with that, pretty much everything worthy to be covered on svg to png conversion is included! Png exports with textures where svg images are being used can be found at the end of this entry.

public File getFile() {
	
	if(this.file.getName().endsWith(".svg") && this.convertedToPng == null) {
		convertedToPng = SVG2PNG(this.file);
	}
	
	if(this.file.getName().endsWith(".svg") && this.convertedToPng != null) {
		return convertedToPng;
	}
	
	return this.file;
	
}

Making external fonts configurable

Let me clear out what “configurable” stands for in this case: the user is now able to include in his configuration file a path to a folder containing font files, under the fontDirectory key. These fonts are then parsed and registered into the application, allowing them to be used in Font constructors, in-code, as well as in text layers definitions in a configuration file.
The method for that was defined in ConfigUtil.java that holds other configuration utilities as well.
public static void parseFonts(Configuration config) , as described before, takes a Configuration object (with the configuration file loaded) as a parameter, navigates to the folder path given under the fontDirectory key and loops through the files. Each file is then registered into the application using the “key” method of this mechanism, GraphicsEnvironment.registerFont().
Reading through the Apache Commons Configuration documentation, it was made clear that a PropertiesConfiguration object was always necessary if a configuration file was to be loaded. Following that, a call to parseFonts was made in the 2 classes that held such an object: OSM2World.java, which also includes the main class of the project and ReloadOSMAction.java which reloads a previously opened OSM file.
And with that said, making external fonts configurable mechanism is also wrapped-up!

PNG outputs of SVG textures used (stop sign and tennis net)

STOP sign tennis net

Application document:

https://github.com/JayGhb/GSoC-2019-Application/blob/master/application.pdf

Coming up: Traffic Sign catalogues


PoI Musings

Another Diary as part of mapping Nottingham’s Creative Quarter, this time musing on Points of Interest (PoI) as part of mapping for OSM.

A conversation with the lady at AST Auto Centre

I could not be certain either from my original visit nor from our Bing imagery whether some central buildings were occupied by the Ashley St. Auto Centre (below) or by a business on the opposite side of th

Another Diary as part of mapping Nottingham’s Creative Quarter, this time musing on Points of Interest (PoI) as part of mapping for OSM.

A conversation with the lady at AST Auto Centre

I could not be certain either from my original visit nor from our Bing imagery whether some central buildings were occupied by the Ashley St. Auto Centre (below) or by a business on the opposite side of the block on Handel Street, so phoned the number on the business card that the lady at AST had given me on 17 May. This was 4 June so I did not expect her to remember me but she did, and mentioned the little leaflet that I had given her.

I quickly sorted the original reason for the call (AST occupies those buildings), but as soon as I mentioned OSM she immediately responded about the number of enquiries that the business gets via Google maps (I had never mentioned Google). I brightly informed her that the updated mapping should be available within the next hour. AST Auto Centre

SEO == “Search Engine Optimisation”

(this is almost always a euphemism for “SPAM”)

In a former life as a website owner & operator I spent my time fighting to keep spam out of my site forums + trying to keep the site firmly within Google’s gaze. Whilst many spammers are profoundly stupid, it was not lost on me that there is some fierce intelligence at play behind the entire spam business, else they would have long ago dissolved into the void. I was not too proud to learn from these experts where I could find it, at the same time as I did my best to kill them dead on my site. I attempt to put all the SEO intelligence that I have gathered into practical application with these diary posts, as one example, making them as attractive as possible firstly to the human readers but also to the bots operated by the Search-Engines. If both find them attractive then OSM wins again.

I was very interested in the response from the lady at AST. It was the first time that I had had such positive feedback on the idea of OSM, and it seemed a good endorsement of both the promotional leaflets (well done to Andy Allan) and also of OSM.

I’ve spent 30-odd years of my life as a professional salesman, and therefore it often colours my approach to things. With OSM it was immediately obvious that the map is a boon for every business — what a marketing opportunity! I therefore work tirelessly to promote every business that I meet during my surveys. (For newer mappers: in OSM-speak these businesses are called ‘PoI’, which is to say “Points of Interest”) I collect Business Cards/Compliment Slips/Brochures whilst mapping so that back at home all of the business’s most important contact information can be put up on the map. If the OSM map is an easily-referenced source of information for most businesses, then it will become very interesting for the common customer, which is good for customers, good for businesses, and good for OSM. The kind of virtuous circle that we need.

Public Service Information:– Business Cards, Compliment Slips, Brochures

For the benefit of younger mappers, since I’ve often had young folks telling me that they do not know what I’m talking about when I’ve asked for one of these items:–

Business Cards

These are dead trees processed into stiff paper (ask your teachers if you are unfamiliar with the idea of paper) and then printed with the business, personal name of the business owners + address & contact numbers. They are intended to be given to other people during personal meetings to facilitate marketing promotion of the business. Please approach your health professional if you have been triggered by the idea of a one-on-one personal meeting, but this is actually quite normal during business life.

Compliment Slips

These are dead trees processed into (typically) a ⅓ of an A4 sheet of paper (ask your teachers if you are unfamiliar with the idea of paper) and then pre-printed — normally on just one side — with the name, address & other contact details of the business. They are intended to be placed into the same envelope as a letter. Ask your teachers if you are unfamiliar with the idea of an envelope or a postal-letter.

Brochures/Booklets

These are dead trees processed into (typically) a series of A5 sheets of paper (ask your teachers if you are unfamiliar with the idea of paper) and folded (brochures) or bound (booklets) after pre-printing with information about the business & it’s activities.

A final item, often overlooked it seems to me by others, is that these Diaries are a very good method to put up URLs in the map that can be indexed by the SEs.


ILUGC Monthly Meet - July 13, 2019 - 3-6 pm - IITM - Debian Release Party - OSM Mapathon

Indian Linux Users Group, Chennai [ ILUGC ] is spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998.

We usually meet on the second Saturday of every month, and for the month of July we shall meet on Saturday, July 13, 2019 at 1500 IST.

Venue: Classroom No 1, Aerospace Engineering, Near Gajendra Circle, IIT Madras. Link for the Map: bit.ly/iitm-ae

Indian Linux Users Group, Chennai [ ILUGC ] is spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998.

We usually meet on the second Saturday of every month, and for the month of July we shall meet on Saturday, July 13, 2019 at 1500 IST.

Venue: Classroom No 1, Aerospace Engineering, Near Gajendra Circle, IIT Madras. Link for the Map: http://bit.ly/iitm-aero Event Details: Event 1:

Topic: Debian 10 “Buster” Release Party

Description: Debian 10 Buster was released few days back. Let us celebrate with Cake and a discussion about it. Duration: 20 minutes Event 2:

Topic: Mini-Mapathon for OpenStreetMap.org

Description: OpenStreetMap.org is a colloborative created maps system, which is provided open map data for all. Let us learn and contribute to OSM in this mini mapathon.

Duration: 2 hours

Speaker: Barani

About Speaker: This is Barani tharan, an enthusiastic open source Contributor. I have started OSM contribution during OSM Mapathon organized by FSFTN. I have mapped all roads, places etc in my Hometown. Its been more than 2 years I started contribution, Still it continuing. When I move to new place or City I note maximum places and roads and map in OSM. During OSM Mapathon I got 3rd place which gives more encouragement to Mapping.

Let’s map for people… Happy Mapping :-)

Here are video introduction in Tamil for OSM. Watch these videos.

http://www.kaniyam.com/video-on-openstreetmaps-org-in-tamil/

http://www.kaniyam.com/video-on-openstreetmap-org-in-tamil-part-2/ Requirements:

This is full handson session. All participants should bring their laptops.

Create an account in https://www.openstreetmap.org/
Bring with a Laptop, Charger
Bring your own internet connection like mobile hotspot or wifi hotspot (We dont have internet at IITM)

After Talks:

QA & general discussions

Entry free. All are welcome.


Bot-Flood Stats

Before

This was originally posted by myself on 6 May 2019. It is an attempt to document the then-recent spam/abuse problem within these Diaries in a scientific manner. The idea was to allow the wider community to get a fuller grasp on the issues and help answer some fundamental questions. After all, nobody knows everything. Here is my attempt to state some of those questions and to try to answer

Before

This was originally posted by myself on 6 May 2019. It is an attempt to document the then-recent spam/abuse problem within these Diaries in a scientific manner. The idea was to allow the wider community to get a fuller grasp on the issues and help answer some fundamental questions. After all, nobody knows everything. Here is my attempt to state some of those questions and to try to answer some of them:–

Some Questions:

  1. Is this Spam, Abuse, or a mixture of the two?
    (the motivation behind those two are completely different)
  2. Are they bot-posts, human-posts, or a mixture of the two?
    (prevention mechanisms for those two differ)
  3. What are the best methods to prevent this from continuing?
    (best practices have been evolved across the last 20 years, but OSM is not your typical forum/blog)

Some Answers:

  • There is a general, continual background issue in the Diaries of what appears to be human-posted spam/abuse of up-to 10 posts / day. These range from nonsense posts to actual spam.
  • Apr 22: a series of bot-posts began
    (that fact determined by speed and duration)
  • The bot-posts did not contain url-links
    (thus technically not spam)
  • Apr 25 → May 23: those bot-posts rapidly escalated into an average of 11,044 posts / day (min 1, max 29,340)
  • May 14, 3am → 7am BST: bots hit these Diaries at a combined maximum rate of 66 post/minute and averaged 27 post/minute
  • 18 May: an attempt to stop the bot flood was made by a broken change to robots.txt, intended to prevent Search Engines from indexing the Diaries
  • 19 May: the broken change to robots.txt was fixed
  • 20 May: the bot-flood abruptly ended (confirming it to be a spam-flood rather than abuse-flood), stuttered into life again on 22 May & finished for good on 23 May
  • June 5: a broken link to the non-existent sitemap within robots.txt was fixed
  • June 6, 17:07:41 GMT: the robots.txt 5 June fix was allocated to a 4-year-old issue (evidenced by the Last-Modified date obtained shortly after)
  • 15 June, 23:56 two more changes ([1] [2]) to robots.txt re-opened the Diaries to be indexed again
  • 20 June: the wfgz bots are re-sending 1,000s of posts to the Diaries again
  • 23 June: the same robots.txt changes as before to stop Diary indexing successfully stop the bot-flood
  • 2 July, 19:16:03 GMT: the same robots.txt changes as before to revert stopping Diary indexing
  • 12 July: so far no repeat of the bot-flood. Hooray!

The post of 6 May now continues verbatim.
Mention was made in my last diary and also in Sam Wilson’s diary about the large amounts of spam coming in to overwhelm these Diary pages. In good scientific manner here is a quantification of the issue, obtained by examining ID numbers for all recent surviving Diary posts.

Background

Diary posts are incremented serially. Thus, deducting the theoretical number of posts by the actual number of posts leads to the measure of how many spammer posts may have been removed.

The Numbers
    Date    End-ID  ---------Posts---------
                   Actual   Theory      Diff
    12 Apr   48187      -              (spam)
    13 Apr   48193      5        6         1
    14 Apr   48195      1        2         1
Mon 15 Apr   48202      2        7         5
    16 Apr   48216      5       14         9
    17 Apr   48223      2        7         5
    18 Apr   48234      5       11         6
    19 Apr   48242      5        8         3
    20 Apr   48252      8       10         2
    21 Apr   48255      2        3         1
Mon 22 Apr   48287      4       32        28
    23 Apr   48378     12       91        79
    24 Apr   48385      1        7         6
    25 Apr   56488      6    8,103     8,097
    26 Apr   74643      8   18,155    18,147
    27 Apr   99519      2   24,876    24,874
    28 Apr  128866      7   29,347    29,340
Mon 29 Apr  140684      3   11,818    11,815
    30 Apr  149349      4    8,665     8,661
     1 May  152912     13    3,563     3,550
     2 May  156826      8    3,914     3,906
     3 May  158835      2    2,009     2,007
     4 May  158837      1        2         1
     5 May  172694      6   13,857    13,851
Mon  6 May  193238      6   20,544    20,538
     7 May  210953      2   17,715    17,713
     8 May  218281      4    7,328     7,324
     9 May  240069      2   21,788    21,786
    10 May  256019      7   15,950    15,943
    11 May  270022      1   14,003    14,002
    12 May  275013      8    4,991     4,983
Mon 13 May  276830      2    1,817     1,815
    14 May  283239      2    6,409     6,407
    15 May  291589      2    8,350     8,348
    16 May  296320      1    4,731     4,730
    17 May  318162      6   21,842    21,836
    18 May  339272      2   21,110    21,108
    19 May  347443      2    8,171     8,169
Mon 20 May  364479      3   17,036    17,033
    21 May  364493      7       14         7
    22 May  364971      4      479       475
    23 May  368657      4    3,686     3,682
    24 May  368669      8       12         4
    25 May  368675      3        6         3
    26 May  368682      4        7         3
Mon 27 May  368691      3        9         6
    28 May  368702      3       11         8
    29 May  368711      2        9         7
    30 May  368716      2        5         3
    31 May  368725      7        9         2
     1 Jun  368726      1        1         0
     2 Jun  368734      2        8         6
Mon  3 Jun  368750      7       16         9
     4 Jun  368753      2        3         1
     5 Jun  368757      2        4         2
     6 Jun              0        0         0
     7 Jun  368766      2        9         7
     8 Jun  368773      3        7         4

Between 25 Apr & 23 May (29 days):
-------------------------  -------
            Total  :  124  320,272
            Daily  :    4   11,044
-------------------------  -------

Update 8 May:

01:52am BST: I dropped in on the 1st of tonight’s spammers:

Title: translation of ID=210955: Being vomited and vomiting frlse
Text : 苟颜德缕uwrfh 苟颜德缕uwrfh 苟颜德缕uwrfh..wfgz

09:37am BST Sunday 12 May:

The latest spammer is /user/twuptyoe378/diary/274627 (removed)
The first spammer:

Title: translation of ID=270023: Vomiting
Text : 07633abawl

Update 14 May:

The first 3 posts shortly after 1am BST were the now-classic Bengali (bn) wfgz spam. Here is the very first:

Title: (ID=276831): 暮铣德娜侗cjenp
Text : 肆考韭缕节oqgwr肆考韭缕节oqgwr肆考韭缕节oqgwr..wfgz

After 90 minutes we began to get some Chinese (zh-CN) vip spam, which continues until shortly before 20:42 BST. Once again, here is the very first:

Title: (ID=282971): 北京幸运28官方网站
Text : 北京幸运28官方网站 【导师微信:<redacted>】【网址<redacted>.vip 】【加拿大28稳赢法】…

Update 15 May to discover spam stats:

I put in place a cron-job Monday to save the current Diary top-page every 10 minutes from 01:00 BST until 10:00 BST. I investigated it today using egrep & tabulated the listing below.

These are the rates at which the wfgz spammers dropped their spam into these Diaries over the night of 14 May. You will see that they hit a maximum rate of 66 post/minute and averaged 27 post/minute. The spam began shortly after 3am BST and stopped (presumably due to the intervention of OSM admin) at about 7am. As best I can tell, all of the posts made between those times were from these wfgz spammers.

Date        1st Post Posts
------------ ------- -----
May 14 07:10  279688     -
May 14 07:00  282939    66
May 14 06:50  282873   424
May 14 06:40  282449   119
May 14 06:30  282330   167
May 14 06:20  282163   234
May 14 06:10  281929   426
May 14 06:00  281503   231
May 14 05:50  281272   129
May 14 05:40  281143   182
May 14 05:30  280961   292
May 14 05:20  280669   237
May 14 05:10  280432   659
May 14 05:00  279773   130
May 14 04:50  279643   190
May 14 04:40  279453   120
May 14 04:30  279333   321
May 14 04:20  279012   186
May 14 04:10  278826   347
May 14 04:00  278479   466
May 14 03:50  278013   223
May 14 03:40  277790   244
May 14 03:30  277546   342
May 14 03:20  277204   342
May 14 03:10  276862    28
May 14 03:00  276834     0
May 14 02:50  276834     1
May 14 02:40  276833     0
------------ ------- -----
            minimum:   119
            maximum:   659
            average:   273

Lupang Arenda[CELO] Tagging

 As a Barangay Deparment that holds the census that also records the map of the CELO   (certificate of lot occupancy) which is challenging us from the census in a row / small house when it comes to   CELO to be specifie in each home's house who has availed CELO (certificate) to stand up for   their establishment.  www.openstreetmap.org/#map=17/14.53746/121.11067 



    * Beneficiaries o

 As a Barangay Deparment that holds the census that also records the map of the CELO   (certificate of lot occupancy) which is challenging us from the census in a row / small house when it comes to   CELO to be specifie in each home's house who has availed CELO (certificate) to stand up for   their establishment.  https://www.openstreetmap.org/#map=17/14.53746/121.11067 



    * Beneficiaries of 8,000 ISF households or estimated population of Arenda
    * using motor / bicycle / walking using additional street-level imagery with Mapillary
    * plan to increase house numbers
    * supplementing important data (e.g. health centers, place of worship, pharmacy, 
       miscellaneous) without CELO because it is important to the community
    * it has a population of 70,000 hectares
    * future plans for DRR, PWD use, etc.  

Example this CELO Tagging for every house hold addr:neighbourhood: addr:quarter: addr:street: addr:town: addr:village: building: place: ref:PH:CELO: https://www.openstreetmap.org/edit#map=20/14.53817/121.10791 https://lh3.googleusercontent.com/-6X5mCt1mIZg/XSPp1e7UxTI/AAAAAAACxY8/WTK5VmUdYEoDC6CI9QH7SGkGEzjMU9UiQCK8BGAs/s0/2019-07-08.png https://www.openstreetmap.org/changeset/71582475#map=17/14.53670/121.10912&layers=N

and it is your best look at where it is clearer and better now in the area of ​​the barangay santa ana taytay rizal.

https://lh3.googleusercontent.com/-GdRLwYHye3g/XSPqB7J9RKI/AAAAAAACxZA/Dx6fcPXDezUUtSmivdMKWNuofN8VglvWwCK8BGAs/s0/2019-07-08.png

thank you

Thursday, 11. July 2019

OsmAnd

OsmAnd 3.4

.blogimageblock img { max-width: 300px; padding: 10px; margin-top: 20px; margin-right: 10px; margin-bottom: 20px; } .blogimageblock { margin: 30px auto 0; text-align: center; border-radius: 6px; background-color: #fafafa; border: 1px solid #e6e6e6; } OsmAnd 3.4July 11, 2019

We are glad to announce the release of version 3.4! We proudly present some major

OsmAnd 3.4

July 11, 2019

We are glad to announce the release of version 3.4! We proudly present some major improvements and new features, and hope you will enjoy them:

(Image not available offline)

Application profiles

Now you can create your own profile for your needs, with a custom icon and color. Go to General menu-> Settings-> Application settings. Here you can select Base profiles to display in the navigation.

After clicking to "+Add" you can build your own profile with your own parametres: icon, avoid, elevation, configure map, screen, navigation settings...

You can add own modified version of routing.xml to osmand folder: ...osmand/routing.

Settings and min/max speed for profiles

We add settings for default and min/max speed for profiles. You can improve base profiles for your own conditions. Go to General menu-> Settings-> Application settings. Here you can set special settings for Base profiles: Routing preferences, Navigation preferences, Voice. Please, click Navigation settings for setting up your own speed: min/max speed.

Add a widget with current coordinates

For switch on this widget, please go to General menu-> Configure screen (Remaining elements). After you can see your own coordinates on top of the screen.

You can change coordinate format General menu-> Settings-> General settings-> Coordinate format.

The compass at the Radius ruler

We add the option to show the compass on the map with the Radius ruler. Go to settings of the Radius Ruler (menu Configure screen) and choose "Show compass ruler". Now you can see the compass at the Radius ruler (if you don't see it, please to click at the widget of Radius ruler).

'Turn Screen On' option

At this release, we returned 'Turn Screen On' option. Now, this feature doesn't ask any permissions for correctly working. You can use it to save phone energy consumption. You should go to General menu-> Settings-> Navigation settings, choose a profile for setting the time for which the screen will turn on and use proximity sensor.

Proximity sensor is a very useful feature during a long trip. You should wave your hand over the top of the screen to turn on the screen while navigating.

What is more?

- Fix background track logging.

- Improved map downloads in the background.

- Fixed Wikipedia language selection.

- Fixed compass button behavior during navigation.

- Bug fixes.

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OpenStreetMap User's Diaries

En busca de los refugiados por el Darien Caribe

En la entrada anterior de este blog les conté un poco la misión en la que nos encontramos en este momento. Para llevar a cabo esta tarea decidimos recorrer el Darien Caribe y tratar de entender la ruta que están haciendo cientos de personas cada mes para pasar a Centro América y tratar de llegar a Estados Unidos y Canada en busca de asilo o una vida mejor.

El Lunes 8 de Julio, viajamos a

En la entrada anterior de este blog les conté un poco la misión en la que nos encontramos en este momento. Para llevar a cabo esta tarea decidimos recorrer el Darien Caribe y tratar de entender la ruta que están haciendo cientos de personas cada mes para pasar a Centro América y tratar de llegar a Estados Unidos y Canada en busca de asilo o una vida mejor.

El Lunes 8 de Julio, viajamos a Capurgana con un grupo grande de Migrantes, casi 90 personas de diferentes lugares del mundo, pero especialmente de Camerun iban para la zona para buscar una ruta en la montaña que les permita llegar a Panamá especialmente a la vía Panamericana y emprender su viaje por Centro América.

Al llegar a Capurgana nos encontramos con un paisaje bastante triste, el gobierno de Colombia dispone solo de 2 funcionarios de migraciones para revisar que las personas que pasan tengan su permiso de transito, en la zona los migrantes y refugiados son despreciados por los locales y ademas suelen cobrarles. Casi que de inmediato se encuentran con los “Coyotes” que son quienes van a ayudarles a pasar la selva, al menos la parte de Colombia. En las primeras indagaciones que hicimos nos indicaron que estas personas viajaban a un lugar cercano conocido como Sapzurro y luego pasaban a Panamá a un lugar que se conoce como La Miel y de ahí emprendían su viaje por la selva. Por cuestiones de logística no pudimos salir de inmediato a acompañar el recorrido de los migrantes, esto hizo que cuando quisimos alcanzarlos ya era demasiado tarde y los perdimos. Intentando alcanzarlos tomamos el camino turístico hacia la Miel. En el siguiente enlace se puede ver la ruta que hicimos: https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=8.6366%2C-77.3472%3B8.6640%2C-77.3706

En el camino nos dimos cuenta que nunca los íbamos a encontrar, aun así seguimos hasta la Miel para verificar si llegaban a este lugar por algún otro lado. Des afortunadamente estas personas ya no llegan a La Miel, los “Coyotes” para evitar a las autoridades y las zonas turísticas han creado otros caminos por la selva que los saca directamente desde Capurgana a una zona de la frontera con Panamá que los dirige de inmediato a emprender el camino hacia la vía panamericana.

En el camino nos encontramos con lo siguiente:

  1. Los locales no quieren hablar del tema con nadie y cuando hacíamos preguntas sobre los migrantes nos ignoraban o nos miraban de mala manera y no teníamos respuesta.
  2. En Capurgana se ha asentado una mafia que esta lidiando con estas personas para quitarles dinero y pertenencias y sacarlos lo mas rápido del país.
  3. Ninguna entidad Colombiana quiere lidiar con el problema y por eso decidieron entregarles un documento que les permite pasar por el país, pero de parte del estado no hay ningún tipo de atención a estas personas aunque viajan mujeres embarazadas y con niños en brazos.
  4. Cada cierto tiempo los coyotes cambian las rutas para evitar que otras personas las usen.
  5. Si eres migrante e intentas pasar sin la ayuda de un coyote eres detenido por “un grupo ilegal” y obligado a pagar las cuotas.
  6. Al parecer hay muchas muertes de migrantes en la selva y aunque todos lo saben a la vez todos los callan.

La situación es complicada y al parecer no hay perspectivas de atención de ninguna entidad hasta el momento.