Recent diary entries
After doing the Romanian OSM node density map, i wanted to do something more globally
The map was created by exporting using Qgis Print Composer in 4 different 24806x17716px , because of the limitations of QGIS that does not allow the export of bigger files yet.
The date was obtained using overpass-api, but for simplicity, if you want to do something similar, use the europe planet extract.
There where over 7 million shop,amenity, tourism and leisure POI in Europe that where combined in a single file using the Qgis Plugin > Vector > Data Management Tools > Merge ShapeFiles to one
Using Qgis plugin mmqgis i created a network of around 800.000 hexagons, and using the Qgis plugin "count in polygon" i was able to figure it how many POI are in each hexagon. To get to a more correct answer, i calculated the area for each of the 800.000 hexagons, that is ranging from about 18 square kilometers in south of Sweden to 28 sq km in Madrid, Spain and did a POI/area to get a more exact answer, POI per sq km
TOP 200 POI by number or POI
OpenStreetMap POI density per km2
1.61 GigaPixel OpenStreetMap POI Map of Europe
Just how much of Europe have at least 1 POI per km2 ?
- 361701 km2, similar with the area or Germany, have a density of just 1 POI per km2
- 169428 km2, similar with the area or Greece, have a density 2 POI per km2
- 97592 km2, similar with the area or Hungary, have a density 3 POI per km2
- 68037 km2, similar with the area or Lithuania, have a density 4 POI per km2
- 48142 km2, similar with the area or Slovakia, have a density 5 POI per km2
- 35867 km2, similar with the area or Moldova, have a density 6 POI per km2
The total sum is 983412 km2, to put this in perspective, this means the area of Ukraine and Germany together. The rest of Europe has a density that is less then 1 POI per km2
What i learned.
- Trying to so something as big as this is impossible in QGIS < 2.4
- Except UK, Germany and neighboring county's, the rest of europe has good POI coverage only in big and medium cities
- There is still no simple way to extract all the POI of a country or a continent ( amenity, shop, leisure, tourism )
- There is no possible way to export this map in a interactive way, at least from the Qgis Plugins
It would be possbile only country by country, if somebody with coding skills could make qgis2leaf work with rule-based colors
i was using this into the overpass api
[timeout:86400]; (way(34.759984,-12.216797,71.587596,36.298828)[shop];); out meta;
[timeout:86400]; (way(34.759984,-12.216797,71.587596,36.298828)[shop];); /added by auto repair/ (._;>;); /end of auto repair/ out meta;
I made some visualizations of the nodes density of roads in OpenStreetMap
For Romania, there where 379.445 ways that generated over 4.7 milions points that where counted in a grid of over 31000 polygons , with area between 7.43 square kilometers to 8.08 square kilometers
Zoom Out - 14000x9900 pixels Middle zoom Close zoom
2048 OpenStreetMap style density map Glitchy OpenStreetMap density style map
All the images can be downloaded from my Dropbox public folder https://www.dropbox.com/sh/qpgi10q3b62s5c0/AADN0qUyY9x3bNsHQlD0NRB5a?lst
This would not be possible to made in old QGIS 2.2, 2,0 it would have taken 10 times more time. Big thanks for all the dev that are mentaining and improving QGIS
I would really love to just import and play with the data in the planet extract, or the data for Romania, and try to do some statistics, but it`s to impossible just to install and make the software work.
I i know a thing or 2 about linux, but it still to complicated.
I really believe we should try and have a more integrated way of exploring the data, with GUI Tools, not complicated as is now.
For the sake of simplicity, this for now can be accomplished by ready to go, VirtualBox or VMware image disk, where i should only put the extract that i get from geofabrik
I was today on the field, to map this area http://mapcraft.nanodesu.ru/pie/407
The focus was on house-numbers. In total i added over 300 housenumbers, 18 pedestrian crossing, and 2 POI`s
Time spend :
2 Hours on the field, and 1 hour adding the data into JOSM
One of the roads was a oneway, that was not added on the map.
The final result can be seen here http://www.openstreetmap.org/#map=18/44.44068/26.14206
The mapping party will take place on the 17 and 18th of may
Just finished to import a city - before and after pictures
More interactive images can be found on the OSM Romania Page
In total we imported over 5000 buildings, 3000 postal adresses and 2500 properties
Just publish the first edition of state of the map Romania.
The infographic is in romanian languages, so i will highlight some of the key stats - State of the map Romania 2013
194,859 kilometers of road in total
73,207 kilometers added in 2013 12,986 bridge`s
16,331 different street names
231,991 - number of buildings,
47 % of them added in 2013
27,237 buildings with names
44,608 buildings with type of building defined
Distribution of Point of Interest
5,400 fixme TAG`s
Over 30.000 POI`s in total
869 locations with opening_hours tag
745 locations that provide information for access for persons with disability
If somebody is from Romania, i just want to let them know that i did a facebook page for OSM https://www.facebook.com/OsmRomania
And because i don`t know what to post when the local autorities are not so great at allowing us to import data into OSM (except Targu Frumos i started making stats about the evolution of OSM in Romania from 2008 until now.
POI evolution per year Link
Percent of POI added in 2013 / county from total POI
Number of place_of_worship in Romania/ county
Number and location of place_of_worship in each county
What should i add on a facebook page about a country ? i want to make people start adding to the map, but i don`t have yet a idea how to help with this, so until that, i do what i know best (sort of :P )
openstreetmap.org is and will remain a demonstration map, not a real website, an end user mapping tool, so this is why 90 % more people use and will comtinue to use google maps
And i want to change that.
So let`s build an openstreetmap.org on steroids.
What this website has to contain :
Clickable POI`s Simple and Straightforward . You see a place, you click on it, you find information about it. And you have the possibility to send a link to the place, etc.
Link to search results. This simple yet non-existing feature. I want to give a link to somebody to 120 Avenue Street . Or to the Museum. I don`t want to give him a permanent link that shows the map, i want to give him the exact location that we will find, without telling him, go to osm.org and search for 120 Avenue Street and you will find it. https://trac.openstreetmap.org/ticket/4408
Render all the shops. rigth now on mapnik more than half the POI
s are not rendered, including dentist shops, amenity=veterinary ,shop=electronics , shop=kiosk Those 4 tags alone represent 35000 new POIs that could be shown on the map https://trac.openstreetmap.org/ticket/4403
Opening_hours filter. Opening_hours is a great tool, very usefull when you are in a new town, city, etc. Imagine yourself at 3 AM, wanting to find a non-stop shop to buy cigarettes. Or a beer, juice, etc.
The same example is useful for a tourist, in a foreign country, on a Sunday, and wants to see a museum. But at least in my country, more then half the museums are closed on sunday. And Some of them are open only 3 days a week. And only for 6 hours.
Sub task proposition : Alert me when a place opens. Mail alert when amenity X is Open.
The possibility to add a Pin to the map, and send, share this pin. If i want to send to somebody a link to the website, for a meeting point, etc i will have to have a simple way to create o pin point , where we will meet.
You are not able to search GPS coordinates in OSM website. Basic GPS coordinates. https://trac.openstreetmap.org/ticket/4429
Feel free to continue the list.