On 14/08/19 11:39, Wayne Emerson, Jr. via talk wrote:
He wasn't asking for every town on earth. Just every country's border,
and every country's capitol. I am a noob too so can't answer his
question. But I did run the wizard with "admin_level=2 and type:node"
and got 3,988 nodes. Which begs the question, why does Argentina have
dozens of admin level 2 nodes? I am guessing around 80 or so.
Each border would usually be a relation with a number of ways. Each way
will have a number of nodes to make the way.
Example
Argentina is relation 286393
https://www.openstreetmap.org/relation/286393#map=4/-40.51/-63.63
It has 2 nodes, many ways and a number of separate relations... look at
teh above link.
One of those ways is Way: Border Chile - Argentina (206446254) and that
single way has 393 nodes.
On 8/13/2019 6:30 PM, Warin wrote:
On 14/08/19 07:41, L??o El Amri via talk wrote:
Hello,
I'm trying to fetch countries, their borders, and their capitals
through
Overpass API, but the server never replies to me (With a timeout:3600
setting, the server reply with a 502 error after a while).
I'm only a beginner with this API, so maybe my request is not
efficient:
(
???? node[place=city];
this gets all cities?
???? node[place=town];
this gets all towns?
)->.a;
rel[boundary=administrative][admin_level=2]->.b;
(
???? node[place=country];
???? node.a[capital=yes];
???? way[boundary=administrative][admin_level=2];
???? .b;
???? .b >;
)->.o;
.o out body;
What am I doing wrong ? (Should I use another tool for this purpose ?)
Too much data? So it times out.
You are asking for every node of;
city 19,930
town 111,981
country 221
And then boundaries as well. 29,752
The numbers I got from taginfo.. did not bother with separating nodes
etc.
I think the boundaries will cause problems - lots of nodes and ways
in there as well as the relations.
Suggestions? Do it in small sections.
Get the cities and countries as one item and see if that works. Save
the result for later merging.
Get the boundaries for a small section of the world .. with few
boundaries and see if that works.
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