OpenStreetMap
On Saturday September 10th 2022 , the OSM local group of Grenoble organized a mapping party in Claix, Isère, France. We were about 10 mappers and we survey this city of 8 000 inhabitants.
We used the tag #CARTOCLAIX2022. Below the area covered by all our changesets:
There was an interesting discussion following my recent diary post asking about searching diary content. A couple of people remarked that most search engines have built-in syntax that lets you narrow down search results. One person suggested that it might be enough to just mention this on the OSM wiki. When I went to add this tip, I found that there was no wiki page describing User Diaries at all. So I created an initial version. I’m writing this in hopes that others will go in and help improve it. Thanks, and happy mapping!
It has been almost a month since the annual State of the Map (SoTM) and Free and Open Source Software for Geospatial (FOSS4G) 2022 conferences, but the stories and experiences are still fresh in my memory. Both were the most awaited conferences in the open mapping and open software world and, undoubtedly, the best conferences I have attended.
SoTM and FOSS4G conferences were hybrid – held in Florence, Italy, and online. SoTM2022 was held last Aug 19-21, 2022, while FOSS4G took place on Aug 22-28, 2022. On top of the conference sessions and workshops, different organizations hosted additional events, like the HOT unSummit, and the YouthMappers documentary premiere. GeoChicas also hosted their social night.
The beautiful sunset in Firenze, taken at Piazzale Michelangelo
Hi all,
Actually, this note is mostly just for me. One of the approved aerial imageries for sweden is the one used by Min Karta. Just use this as a custom imagery:
Best regards and peaceful mapping, Dmitry
To be honest, the experience was different than I expected. It was a lot of struggle to understand the codebase. The feature in itself was not too complex but understanding the code to a point where I made substantial progress did take a lot of time and effort.
With most real-world large projects, the outcome (the lines of code) produced at the end doesn’t depict an accurate picture of the hours a developer spent behind the scenes. But that’s with most creative jobs, I guess.
In the end, I am glad I was able to complete it. Seeing the feature work did make it up.
You can find my final report in a GitHub gist
If you are interested in how I understood the codebase, you can see
OpenStreetMap (OSM) is a good product. Just try to edit your home or your neighborhood or any place you like using iD editor; you’ll realize what I mean. If not for open source, OSM wouldn’t exist.
If you are thinking of becoming part of Google Summer of Code (GSoC) in the future or know someone who can be or wants to be a part of GSoC or just wants to contribute to OSM or any open source project, I recommend it.
Note: relations in brackets [ ] are not part of the Empire State Trail, but are relations that were helpful in creating the trail.
Note: in this list, some relations have distances indicated after the relation ID number.
Empire State Trail (super, hike) (11682611 https://hiking.waymarkedtrails.org/#route?id=11682611
Empire State Trail (super, bike) (11486089) https://cycling.waymarkedtrails.org/#route?id=11486089
I was going to search to see if someone had already written about this, but..
It would be really useful to be able to search the diaries.
There is so much valuable, fun, informative, personal writing on here, but it is really hard to discover.
Fortunately, Weekly OSM does a good job of capturing some of the interesting entries posted here, but they can’t possibly cover everything.
I’m not sure what would be involved in adding this functionality, I am sure if it were easy, someone would have already done it. Someone did open an issue for it on Github but it has received no comments so far.
Is there anyone here who speaks Ruby, cares about this, and wants to implement it?
PlantNet.org offers an API which tries to determine the plant species based on some pictures.
I integrated this API into MapComplete, together with some queries to Wikidata. As a result, linking a tree to the correct species identifier is easier then ever and can be done with a few clicks:
This week I’ve released the 2.0 version of Every Door, which irons out most of the inconveniences found within a month after its official release. Yes, the editor has been officially released, just a few days before two talks on it at SotM and FOSS4G (recordings pending). You should download the editor for your Android or iOS smartphone right now!
I absolutely love the experience it gives me. It has revived my love for plain mapping, going out and collecting things to put on the map. Pascal’s HDYC shows my mapping days went from 29 last year to over 120 this year. That’s because I again look around for unmapped things while outside, and making an edit no longer requires navigating a map on a small phone screen, or making scribbles to open JOSM later at home.
(Sorry for the delay in posting. I spent most of July 2022 on holiday in Australia)
clothes=women still applied 🐘 🐦. 🤣Previously…
Ilya wrote about the 10th anniversary of OSM adopting the ODbL license yesterday. He has a cool 2012-2022 map compare web site to go with it. It’s incredible to see what we, the OSM community, have accomplished building our map in 10 years.
Ilya is a pretty technical guy and it’s not a huge thing for him to set up an OSM tile server from scratch. But what if you want to create something similar and you’re perhaps not quite that technical? If that’s you, I have something you might be interested in! It’s a little open source project on Github called openstreetmap-vintage-tile-server. With it, you can create a side-by-side map in a few pretty simple steps. The README on Github explains it pretty well, so I won’t repeat it here, but the steps are basically:
docker and osmium installedWhen it finishes, the tiles should be available on your local machine. The script will give you the URL to go to. There’s also an HTML example that you can use to create an interactive side by side map like this:
Hi from Syria
I’m very impressed by the achievements of all the OSM contributors and as an IT student it was very nice to see how all this tooling is open-source.
I found OSM while searching for alternatives to Google Maps, that’s mainly because our country is sadly under restriction from the high majority of services provided by US companies.
And even if it was not for the restrictions, it would be for the price.
So I’ve found OSM and started diving step by step in it’s wiki. Until I was able to understand how the map can be mirrored, rendered and customized.
Then with some checks of my local area I wanted to do some edits as an experiment and oh god the tooling is amazing.
Huge thanks for everyone who worked on OSM whether on it’s software, organization or even contributed to it’s database!!
As a start I marked some appartement buildings, lets so how this goes.
Ten years ago on this day we changed the license for our data to ODbL, Open Database License 1.0. That was the final action of the lengthy relicensing process, which followed an exciting show of redacting and remapping the planet.
In July 2012 we started every day with watching the redaction progress map, discussing how the redaction bot devoured our precious map data, and making memes on the way.
After the bot finished its work, we started remapping everything we had lost. Poland and Australia were particularly broken, but most other countries had their losses. Alas we could not make everybody agree to the new contributor’s terms, so some mapping had to be done twice. But the work went better than expected, and it was then when we felt that the community is more important than the map, and that OSM can survive the loss of the latter.
Namaste from Nepal,
Even though it has been two weeks since I returned from the conferences, the memories still seem fresh. When I reflect back, I am filled with so many new experiences and learnings that will be hard to cover in this diary but I will try to summarize in highlights so that it’s not boring for you :).
Landing in a new country for the first time far away from home, was an overwhelming journey. I want to express my gratitude to Poorni Badrinath and Hector for helping to make my first day in Florence easier. Before I could check in, they showed me about the city, and after waiting in line for at least five minutes, I got to enjoy the best sandwich in popular place called All’Antico Vinaio. Oh, the first day went much better than I had anticipated. And, the next day, SOTM started. The idea of badges for talking accessibility really amazed me. Kudos to the creativity!
Hi everyone, this is the update on the final phase of my progress in enhancing Nominatim’s search results ranking.
To have a background understanding of the project, you can check the overview of the project followed by the project’s first phase down below.
To see the code of the project, you can check the pull request here.
The detailed version of the report can be read here.
There is a weak correlation between the OSM views data and the wiki importance data. A number of possible reasons have been outlined in the detailed version of this report in which further investigation is needed to have a better understanding of this outcome. Apart from that, the OSM views import feature can be enhanced so that the user can specify the zoom level when importing the data, or even have multiple zoom levels data imported one after the other so that the OSM views data have a higher degree of accuracy.
Recently I started an attempt to make the campsites shown on https://opencampingmap.org googleable.
One part of this attempt will be an indexable list of campsites by country.
However, the main trouble with this seems to be broken mapping which will make the generation of such a list really cumbersome.
As an Example I came across this place: osm.org/way/335229905
There are multiple problems with this site in its current form. I will fix them later but use it as an illustration for a broken site first.
The main problem here are nodes tagged tourism=caravan_site and tents=yes which reside inside two polygons tagged tourism=camp-site.
As an example we have a node tagged:
The way this node should be tagged instead is:
Please do never map individual pitches as tourism=caravan_site or tourism=camp_site. Use tourism=camp_pitch instead.
This said, in this case even the two polygons are not individual camp-sites themselves.
What should be done instead is merging the two polygons tagged tourism=camp_site (osm.org/way/335229905 and osm.org/way/335229904) into one multipolygon with two outer rings as we are obviosly talking about one single campground rather than two. I also consider “Campground Loop A” a feature of one of these rings rather than its name. So best would be using the description tag on the to be created rings then.
The name tag of the to be created Multipolygons should then be Fort Pickens Campground which is surprisingly tagged on none of the objects currently.
I do not have local knowledge of this campground but there may well be camp-site features outside these polygons.
The way to map the site in this case would be a site relation. I wrote about this in my blog some time ago: https://blog.geggus.net/2021/09/announcing-support-for-site-relations-in-opencampingmap/
The primary aim of this Google Summer of Code project is to re-introduce transit support in Valhalla, the OpenStreetMap based Routing Engine. Initially, Valhalla supported a mode to route transit, but due to a bottleneck from a third-party library, it became unviable to continue support transit routing. Therefore, the aim of the project is to directly parse raw General Transit Feed Specification (GTFS) data and remove the dependency.
The high level overview of the project is visible here:
Specific details of each pull request will be described below.
The first stage of the project was importing GTFS and ensuring that we can parse the data. GTFS is a set of text files, and rather than iterating through them manually, I decided to use a third party library to automize the read-write process. Just_gtfs allows us to read and store transit data in variables rather than manually trying to parse text. Moreover, I can create sample test data without being concerned about creating invalid data.
After parsing GTFS data, the next step was to pre-process them so that they could fit into Valhalla’s existing data format. Firstly, since the map is divided into tiles – square regions of equal area – I sorted the data according to which tile it belongs to. Tiles are beneficial to save computing power because only the information that belong inside the tile need to be processed when routing through small regions.
The sorted data then needed to be built into protobufs, which are used as intermediary data storage before they are converted to tiles. Protobufs are much more condense and versatile than raw GTFS data, so we extract the relevant information from GTFS into protobufs and gather the data. This is further useful because instead of iterating through each stop or trip of a tile, the tile could be read as one whole entity, streamlining the reading process.
Original post in Portuguese here
After some time from the return of State of the Map 2022 in Florence, and after a brief reflection on my experience at the event, I would like to share my views on SotM 2022.
Initially, I would like to thank the State of the Map Working Group for providing grants to participate in the event, which I was awarded (more on this later).
About the event, it was 3 very intense days (and sometimes overwhelming)! During SotM, I thought I could enjoy it more, but looking back, I see that it would be practically impossible. Several very interesting presentations at the same time, amazing people to meet and talk to, very well constructed and presented posters, in short, a lot happening at the same time.
In these last 2 years as a full time volunteer, I have developed several mapping projects around Brazil, because I believe it is my duty to contribute because of the deficit the map had in my region. My goal as a mapper is to try to decrease the blank spaces in OpenStreetMap so that more people can use them and thus more mappers emerge.
I understand that not everyone has time or interest in mapping, the most they can do is the basics, and many times they forget about OSM because they can’t use it on a daily basis, even more in a country like Brazil where hardly a worker would have time to be updating maps.
I have dedicated myself daily to OSM, but unfortunately this has a cost and since I am no heir, it has been very difficult to reconcile my volunteer work and my personal life, I have gone through some very complicated phases since I decided to dedicate myself full time, but I also had a lot of help.
Working at OSM is not an easy task, because your work is never finished, there are always new changes that need to be mapped, mistakes to be corrected, it’s a continuous job that requires a certain level of knowledge and experience acquired over time.
One of the first projects I did was using DAMN and then Taskmanger to be able to manage and map entire cities, with this project almost 20 cities were fully mapped from roads to buildings.
It was a joyful moment, having been selected and given a scholarship to attend the hybrid conference, SOTM 2022 in Firenzi Italy, first time to board a plane so it was a whole lot of new experience and excitement, I arrived in Firenzi on the 18th of Thursday evening just in time for the event. The historical city of Firenzi is a beautiful city with a whole lot of sculpture, just like what I see in the movies.
