Probably not every day our brother gets to draw Krasnokholm

The third day I saw an excellent demonstration of how OpenStreetMap is better than other maps on the Internet.

For two days, the village of Krasnokholm of the Orenburg region and the surrounding area was drawn by the forces of outside mappers from the state of “several streets” to “everything that is just the right information”.

Prehistory

From RNIC GLONASS to OpenStreetMap a letter was received asking for help from the Orenburg city ambulance. The ambulance uses OSM programs and they need address information in the village of Krasnokholm and the two nearest villages. They sent address plans of the village and villages, and after some correspondence even permission from the administration to integrate address plans into the OSM.

Quote: "To the head of OpenStreetMap, Moscow"

On the evening of January 22, the information was posted on the OSM forum.
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A small Internet race showed that

1. Yandex maps contain streets and even some POIs, but not at home
2. bing cards contain a couple of streets
3. Google maps does not even contain streets, only the name of the village
4. in Krasnokholme, at best, one local OSM mapper - KillGates
5. Satellite images of bing in the village are good, you can see houses and even fences and poles of power lines
6. paint very little around - for 2013 there were 1 revisions in April and July and 3 revisions in September

Before OpenStreetMap in Krasnokholme until January 22, it looked like FOSM - there is information from about 2012, but it pretty well coincides with what is in the OSM dump from the morning of the 22nd.

2 hours after the announcement on the forum, a kind person lzhl created a “pie” in mapcraft ...

And began

During the day all the houses, all the streets were drawn and all the addresses were put down. But the mappers did not stop there. The “shock wave” of enthusiasm in the vicinity of the village and the villages clarified the roads, contours of the forest and rivers, sheds, single trees, land use areas, power lines, etc.

On the 23rd evening, I could not find what else to draw in the village. I drew only a couple of tracks to the north.

“Stunned, for the first time in my life I wanted to take part in a sofa cartopat, and it turned out that they had already eaten the whole cake :(” literan

“The day before yesterday was emptiness, today is already a garden city” Zverik

On the second day, the drawing was polished to a shine.

“Tom had a great time all this time, doing nothing and having fun, and the fence was covered with lime in three layers! If he hadn’t finished the limestone, he would have ruined all the boys in the city. ”
Mark Twain, "The Adventures of Tom Sawyer"

The result of the work - a printed map with marks of unclear places will be given to a local medical assistant,

“And she will, as far as possible, sign that yes how. Of course, it is not good to strain the doctors, but they themselves also need it ”(c) ErshKUS

Video clip

Following the results of shock rendering, it was decided to make a video.



Unlike last time , to create this video, it was necessary to shovel a much smaller amount of information. It turned out that one dump from the GIS-Lab area (RU-ORE-140122) and ten daily OSM diffs were sufficient .
The same processing scheme was used:

• Filtering and sorting data homemade program
• Homemade render in SVG
• Convert to BMP via ImageMagick
• Build video in avidemux

Additionally were used

• Maperitive to create a starting frame (state of the map at noon on January 22)
• ImageMagick for fade in / out

An option was considered to render all frames in Maperitive or equivalent, but there is no highlighting of fresh changes, so the appearance of houses and other minor changes would be almost imperceptible. In addition, it would be necessary to pull out all versions of all relations from the database.

A set of OSM data can be downloaded (relation there is not all).
Video without music is uploaded as a file (25 MB) under license CC-BY-SA 3.0

Felis Pimeja posted his ani-gifs from episodic screenshots of mapnik.

Guess the melody

For this time, a track has been selected for music, which I have not been able to identify for 7 years. Maybe someone from the audience or YouTube mechanism will tell me. If you know what kind of music - write, please.

Total

In my opinion, the story of the rapid rendering of Krasnokholma perfectly demonstrates the advantages of OpenStreetMap:

• If there is a source of data, information can be entered very quickly and at the same time it will immediately be available to everyone
• To fill in the data, sometimes a rather simple request “draw, please”
• OpenStreetMap is already used in the regions, despite the availability of commercial cards
• Discrepancies in the source data can be clarified on the ground and corrected in the database

UPD 2014-03-01
The world mind won, the music is identified, it
Lily - It will rain quietly (instrumental)
Thanks Erelen for the tip