OpenStreetMap

baditaflorin has commented on the following diary entries

Post When Comment
Preannouncement for a new project with a long name about 1 month ago

Its still a linux only thing, but at least you dont have to know the osmosis commands, etc

I am guessing that you don`t have linux installed or put in a virtual machine ?

10.000 broken Turn_Restriction in the OSM Planet File about 1 month ago

I did a random sample of 5 relations.

  1. ID http://www.openstreetmap.org/changeset/28564542

  2. The user did not do a complete relation from the start http://www.openstreetmap.org/relation/5186076/history

  3. The same user that did the relation, ended up broking it

http://www.openstreetmap.org/relation/4589439/history

  1. User using ID broken the relation http://www.openstreetmap.org/changeset/31045173

  2. User using JOSM broken this relation, and possbily more ( thare are 16 relation in this changeset http://www.openstreetmap.org/changeset/35613882

I now see that the number that i did can be as low as 6000, because in the process of using osmconvert and osmfilter , somewhere there it did not give me the nodes, so i have in my relations just the ways.

So a No_u_turn made up of a node and a way, i will count only once

As i have found in this false poziitive no_u_turn restriction http://www.openstreetmap.org/relation/4071659

My christmas gift for the OSM Community - JOSM Keyboard Shortcuts Cheat Sheet 300 DPI about 2 months ago

Hi Marian, not sure, but if you will find one that work, please say back.

From looking at fontlibrary.org , maybe some of this fonts will be a appropriate match to replace TW

Something like https://fontlibrary.org/en/font/zabatana https://fontlibrary.org/en/font/hilo-deco or https://fontlibrary.org/en/font/osp-din

My christmas gift for the OSM Community - JOSM Keyboard Shortcuts Cheat Sheet 300 DPI about 2 months ago

@malenki good question, i could do that :)

This are with extensions, i had added just the default values, but i could improve it with the D B Y

What plugin do you need for the D and Y ?

My christmas gift for the OSM Community - JOSM Keyboard Shortcuts Cheat Sheet 300 DPI about 2 months ago

I had put the SVG file here :

https://www.dropbox.com/s/t53185ehsmzgdtb/JOSM%20Kayboard%20Layourt%20final%20cu%20tot%20cu%20text.svg?dl=0

My christmas gift for the OSM Community - JOSM Keyboard Shortcuts Cheat Sheet 300 DPI about 2 months ago

I am so glad that the image is getting positive feedback :) I know that i did not do it for nothing .

@andygol i will upload to openclipart.org to see if is possbile, if not i will upload on my dropbox file and come back with a link

Improving Routing Information Using Mapillary Imagery 2 months ago

to addition of multiple relations

In JOSM , try to download the connecting way that is connected to the way that you are splitting. \

More simple, download a bigger area then the one where you are editing and you should be fine

The most inefficient way in North America 2 months ago

I also have some scripts that detects this kind of errors. Did you put the code somewhere ?

JOSM Turn Restriction Enhancement Suggestion 3 months ago

Hi, i have tried it, it is good for way-node-way

if you have a situation when you want to do way-way-way then is not good.

Mexico boundaries import status. 4 months ago

Hi Walter, i agree, this was my error, i did not factor in the difference in experience between the members of the team. We where 4 persons that handled the re-gluing the al6 to the al4 .

For the future we had decided to have a peer approach when after we will do a import, another user will check what other member of the team did.

Average highway node distance between 2 points in OpenStreetMap - September 2015 5 months ago

Hi @nakaner, thanks for the feedback, i will try to do it tomorrow, if not i will do it during the weekend.

Average highway node distance between 2 points in OpenStreetMap - September 2015 5 months ago

It is in EPSG 3857

Great idea, is in my to do list, but did not figure out the code to to that yet

Postigs question - find out the unnecessary points that exist on the map 5 months ago

Butrus sure this can be filtered from the query.

Anyhow, this is a hobby project, i don`t have yet the postgis skills to do it, so no worry

Also, i just want to see the result, i will not act upon it.

When i will be able, i will just highlight the extreme cases, and maybe do a maproulette challenge when a road have more then 10 nodes that can be deleted, so that users can check them

Community mapping in Cape Town 5 months ago

Nice, waiting to hear more about your adventure :)

Postigs question - find out the unnecessary points that exist on the map 5 months ago

I will leave the code here and try to work on it after i will find some postgis gurus that will be able to help me :P

https://gist.github.com/anonymous/3669b78e0898bde4f638

Postigs question - find out the unnecessary points that exist on the map 5 months ago

@SimonPoole that is a valid point of view.

Anyhow, i think i should change the initial hypothesis, to the first thing that i am interested, that is, to be able to detect and count this. then, publish the metrics. Then we will know some numbers.

I am trying to develop different metrics that could help us find errors on the map. One of the aims is to be able to detect the overnoded ways from import.

repetitious script

Postigs question - find out the unnecessary points that exist on the map 5 months ago

Thanks, i did not know about the Douglas-Peucker algorithm, i will check it out and see if maybe this can be used for this simple task.

I had used this in the past http://pastebin.com/2kH0mAWG to calculate in Qgis the angles that are more then 50 degrees ,when i wanted to create a map roulette challenge for Romania and

Now, it`s kind of the same idea, but with a different threshold

romanian discussion about the topic

Postigs question - find out the unnecessary points that exist on the map 5 months ago

I don`t want to do it, especially in a automated way and without consulting the community. I had not find yet a way to import the whole planet, only part of the planet

But i want to have the proof of concept, to show.

Example 53405432 nodes could be removed, saving us XX MB , reducing the import time of the planet file by XXX seconds ...

How many days or weeks does it take to upload the whole planet via Osmosis ? 5 months ago

I will kill the task and try 2 different version :

1 imposm3

  1. load by regions and then join in postgis

the only information that found says that i still have to wait at least 7 more days http://ksmapper.blogspot.ro/2011/04/parse-planet-into-pgsnapshot-database.html

I think i got an answer, based on

If the copy*************n it`s 317 GB

What is the approximate size of copy*********w 80 % ( 240~ GB ) copy**********wn 10-20 % (50-60 GB)

How many days or weeks does it take to upload the whole planet via Osmosis ? 5 months ago

i want to do statistics about everything that is on the planet file, from every piece of the world.

I know that i could just import each continent and then do some join to stitch all together, but then whats the point of a planet file.

I already Have Africa loaded, some more countries loaded, but the aim of my statistics will be to show everything that is on the map, how it relates, what particularities exists in different parts of the world