Except it's not a geographic area, but rather a set of streets with that
restriction. If a bridge or tunnel without the restriction goes
over/under a street with the restriction you'll have a problem.
In that case, that bridge can have differen speed limits set directly
on the way. Just
To lunch a small Satellite is not very expensive.
Are there plans for an OSM satellite?
But it is very expensive to build one - if you want satellite to
provide some satellite imagery, you'll have to put up some sensors,
power source, computing power, some means to transport data back to
earth
http://en.wikipedia.org/wiki/TopSat
http://www.qinetiq.com/home/defence/defence_solutions/space/topsat.html
Apparently you can rent it for £25k a week... easily within the ambition of
donate.openstreetmap.org.
How large part of earth could be imaged in that timeframe?
Topsat have 2.5m
2.5m sounds about the same as Y!, so its even enough for rudimentary
building mapping. but thats the black-and-white figure, the colour
resolution is about 5m. :-)
You can merge them and get something with almost same quality as 2.5m
color resolution.
also, would it be worth it as a PR
In addition to actively pursuing further experiments for the MOD and BNSC,
the consortium is also seeking new applications to which the technology can
be applied.
i.e. it's as much a research project as a commercial operation... so maybe
your idea of let's just ask them could work.
It's WAY too easy for a newbie (and I was once) to try to scroll in
Potlatch like they scroll in OpenLayers, munge a way or a node by
moving it inappropriately. Then they panic, are unable to find the
Undo or don't know about the Undo, or are just so scared that they
immediately close
a) motorway: that's very clear, therea are no or very high limits.
b) city areas with limited speed and some restrictions
c) everything else, mostly out of town.
In Czech republic there are different rules for motorways inside
city area (maxspeed=80) and outside (maxspeed=130). So case d)
I wonder, can we have at some place (wiki?) some definition file that
will specify these per-country default limits in some machine-readable
way?
This could look like this:
country(cz) {
maxspeed=90
(highway=motorway|trunk) {
maxspeed=130
foot=no
bicycle=no
}
Could we not have different polygons for Speed Limited Zones. That may
or may not be the same as the city limits. We could even tag these
zones with maxspeed, So that when applying we don't have to go and
look up what that means. The problem is if the zones overlap, which
one applies?
Well, we can have layering (layer=-5 ... 5) like for any other tags,
so we could have small zone with different limits within one large
zone. For clashes with default rules from place=... and alike, we
can define some rules of precedence (speed limits on individual ways
have highest
...but you would need some kind of gis database/functions to evaluate the
polygon data.
the easy way of reading just keys and values like with most of the other
features in the osm database would not be possible.
for more advanced use of OSM data you need function in which polygons
does
I am using GPSMid (http://gpsmid.sourceforge.net/) on SE W200i - I
don't have bluetooth GPS, so I use it only for displaying the map
(which it does quite fine), but it is also capable of using GPS
(should work with bluetooth and integrated cellphine GPSes), logging
tracks and making waypoints
Place of Worships:
Cathedral amenity=place_of_worship importance=regional/national
Church amenity=place_of_worship importance=urban
Chapel amenity=place_of_worship importance=suburban
You can use some tag object_size, where you specify size of the object:
Catherdal
I thought of another wanter feature for 0.7 API
Retrieving deleted objects, similarly like it is done in potlatch.
Currently only potlatch can do this and since potlatch does not work
well with larger areas (it is way too slow) and does not support many
features that JOSM have (WMS, plugins,
I tried to download full history of a way
The call to http://www.openstreetmap.org/api/0.6/way/34068057/full
will fetch the current way with all its nodes (so I can open it in
JOSM for example and look at it)
The call to http://www.openstreetmap.org/api/0.6/way/34068057/history
shows history of
On 14/06/2009, Richard Fairhurst rich...@systemed.net wrote:
MP wrote:
So currently, if I want to know how was the way drawn in time T,
I had to get history of the way, then find out which nodes were used
by the way in time T, then get history from each of the nodes and
pick
They just mention that the data is free of charge, but don't make
further comments as to the license of it.
I tried to actually download anything ... and I failed ... seems their
server is way too overloaded currently.
But in the process, there is some agreement page saying this:
# I
I'm curious if it'd be better to pre-generate all the images before, and
then you're just serving static files, or if it'd be better to have some
sort of web server / database / the whole tile rendering shebang on there.
Pre-generating probably won't be the good way to go, I saw some
As it turns out the first clause is (apparently) to facilitate
tracking of how the data is used and so that they can announce
updates, and the second is to ensure proper attribution. I've asked
them permission to quote their complete reply but that's basically it.
What about derived data?
You can also strip out all of the data/tags which you are not interested
in rendering.
Obviously you would not want to upload any of this 'tainted' data back
into the OSM database.
If you do now want to edit, just use the data to display a map (and
perhaps do some routing, etc , you
What about not adding restrictions to the rights, but implement some
warning system?
We can use some trust points that are awarded for good mapping
(objects that last on the map)
Then warning points in each upload for possibly bad things (deleted
nodes, removed tags, accidentally moving many
Fixing subway stations in Rome wouldn't be prohibited to newcomers if
they limit themselves for that day to Rome, encouraging them to focus
on an area rather than jumping around the globe changing things (True
value of OSM is _local_ knowledge!). They could be first only allowed
to map
I think the worst case to revert is mass deletion - only Potlatch have
some facilities to find deleted lines given a BBOX, and only lines,
not POIs or relations. Such deletion is quite hard to spot.
As for reverting changesets - there is list of nodes/ways/relations
that was either added, changed
A brilliant idea. Close inspection of a changeset should also be able to
better find out whether the changeset actually applies to a certain area
or whether it just has a huge bounding box.
Currently, we have ID, Saved at, Comment, Area fields in the
changeset list, so perhaps adding columns
On 02/09/2009, Peter Körner osm-li...@mazdermind.de wrote:
I'm against voting. Voting is a way to take responsibility away from the
individual. I think that in most cases we should strive to have
individuals responsible for everything (just like with mapping - you
don't suggest
be added at the right side of every changeset line. One click might
report succeed or conflict/failed, do it manually.
Until this is possible I want to try to (or at least collect all
necessary information to) write an external tool for this.
Adding revert to main site could attract
Also most people don't want the reply sent too them twice as if they
are posting they are on the list, and hence should receive the answer
twice.
How do you know? Did you ask them? I _want_ to get direct copies. In case
people don't want to read mails twice they can tell the list
I got http://svn.openstreetmap.org/applications/utils/gary68/useractivity.pl
and I notices some bugs:
You are missing #!/usr/bin/perl at first line
I fixed it and then I got:
Undefined subroutine main::bzopen called at ./useractivity.pl line 1168.
You have to use use Compress::Bzip2; also
I notices few days ago user farlokko changed many shop=groceries into
shop=greengrocer worldwide.
The changeset is http://www.openstreetmap.org/browse/changeset/2562959
I think this change is wrong, at least for most nodes in czech
republic - I know about nodes that I've added and only small
It looks as though farlokko has reverted some (maybe all) back to
shop=groceries.
Some, but not all. I reverted all greengrocers from that changeset
back to groceries in Czech republic, in all cases where the shop name
does not suggest it is actually a greengrocer (names like Ovoce -
zelenina,
In practice, almost all mapping seems to use approach (a) - but would
approach (b) be easier for subsequent editing and addition of detail, and
rather clearer as it avoids superimposed ways and potential editing errors?
I think that the correct way is b) - three separate lines. Since if
the
If you don't want to do micro mapping the best approach is to create a
multipolygon relations for the farm and one for the golf course. use
the portion of the highway in the polygon as outer way and delete the
duplicate ways.
While this may look reasonable, this is IMHO a bad idea.
I've
For a road, we can either choose to map it as a linear object (this is the
common case), or we can map its geometry more exactly by using an area. In
both cases, however, the object in our database represents the entire road
(i.e. not only the middle line). Because in reality, there is no
Actually, could someone explain how this is supposed to protect against
vandalism?
It appears that if an account is blocked, a vandal can simply create any
number of alternate accounts and continue his work - probably much
faster than anybody can hand out blocks.
Won't help much against
I encountered way http://www.openstreetmap.org/browse/way/30722618
From history it seems it was probably some forest before someone screw
it up to form some sort of circlish object.
Is there currently any working tool to see the way as it was before
and perhaps revert it? It have five revisions
Well, wikipedia have now instaled extension that allows you to order
printed books via pediapress - you pick up some articles, then you see
how many pages it is and you can download it as PDF or order printed
copy. We could perhaps do something similar with OSM - someone chooses
scale and area,
On 25/10/2009, Ævar Arnfjörð Bjarmason ava...@gmail.com wrote:
On Sun, Oct 25, 2009 at 3:59 PM, MP singular...@gmail.com wrote:
Some java applet, that will download OSM XML. [...]
The problem is that if you want something that looks like the OSM maps
that's going to rely on a lot
Just tell me how you'd like the tags to be rendered. Maybe, if name
isn't given on a building, another tag should be rendered instead.
Perhaps 'name', 'user' and 'owner' in that order?
Tag 'user' was misused few times by some editors in the past to
contain name of user who made the edit,
I need to revert part of
http://www.openstreetmap.org/browse/changeset/3050941 - someone edited
live in Potlatch and screwed things up - he moved many nodes to some
silly position, then someone tried to fix it by restoring one of
affected ways... so I'd like to revert all node moves.
What is
I noticed someone deleted several forests in one part of world
(Southern Bohemia)
Perhaps someone was playing with the data or accidentally deleted it
and now the forests are gone. (for some of them orphaned nodes were
left behind)
Is there any way to retrieve deleted nodes and ways and restore
a)
get Potlatch running
I tried once fiddling with Potlatch, but there were quite a lot of
problems geting flash to run on 64bit system and when I tested it on
another 32bit system, the reactions were very slow (perhaps I was in
area with many ways with many nodes, but I was unable to even get
Hmmm but potlatch must have some way of querying for deleted
ways - if it is not the main API, is it something documented
somewhere? Some hidden API? Or should I try my luck with browsing
through potlatch sources or perhaps using wireshark to find out?
Or you could ask me. :)
It's a
In Czech republic there are many forests that does not fit into the
new limit. Splitting them is not exactly easy, as most of them are
multipolygons and you have to manually move inner parts between
multipolygon relations in JOSM (2000+ nodes forest usually have about
20-100 inner parts).
In Czech republic there are many forests that does not fit into the
new limit.
Then you have even today created something that is very difficult for
mappers to handle. The thought of downloading the history of one of these
ways... shudder!
Those forest were imported approximately August
And why is that? We cannot just split relations. I thought it was the
whole purpose of relations to have everything together.
So I guess you then propose something like a super-relation. But
that's not exactly user friendly: suppose I started tagging a 200 km
long walking route from two
Instead, try this:
http://svn.openstreetmap.org/applications/utils/amf
I put in bbox=[48.6909603909255,13.88671875,48.80686346108517,14.150390625]
and run it, but it seem not to work - after while it aborts due to timeout:
./httpclient/timeout.rb:42:in `parse_header': execution expired
The concept of an editor is already too complex for most people.
This guy searches for command buttons corresponding to it's
first desire: add a road, or add a cycleway, or change road,
Then let them add road (highway=road) and then let the geeks figure
out if it is secondary, residential,
There is special page to request export of data as XML dump
http://wiki.openstreetmap.org/wiki/Special:Export
And a list of all pages:
http://wiki.openstreetmap.org/wiki/Special:AllPages
I have tool that makes complete XML dump using these two pages quite
effectively (tested on wikipedia).
It
This will be a particular problem if this happened with someone who made
lots of changes and then went off in a huff for some reason.
What about data donated by varous organizations? In these cases, the
user that uploaded them usually just merely converted the data from
another format
Nice images, but I found no software for generating the data (I'd like
to see another country in that way), so usability is somewhat limited.
But it could be nice image of what can be done, so I think we should
get one nice image from them to featured images. Maybe it'll inspire
someone to
http://www.informationfreeway.org/api/0.5/*[highway=tertiary_link] - 1.3mb file
Well, these seems to be quite a lot tertiary_links out there ...
For example http://www.openstreetmap.org/?lat=49.95321lon=11.57331zoom=16
(not rendered though, you have to use some editor to see it)
So I'd say we
On 02/03/2009, Ed Avis e...@waniasset.com wrote:
MP singularita at gmail.com writes:
As for the people who can't be reached/refused to accept new license -
what about tagging such data with some tag like license=cc_by_sa to
warn people that this part is licensed otherwise and keep the data
This seems rather apocalyptic. What do you mean by 'lose everything' and
how would changing to a different licence avoid that?
It is my opinion that CC-by-sa poses a high risk of not being enforceable to
databases. That would mean losing the share-alike rights to the data.
So you mean the
On Tue, Mar 3, 2009 at 03:39, Iván Sánchez Ortega i...@sanchezortega.es wrote:
El Martes, 3 de Marzo de 2009, MP escribió:
Note that if cc-by-sa is somehow abusable, anybody that want to abuse
the license using some loophole will simply grab last dump srill
published under cc-by-sa instead
A little bit more respect to the people that actually did the mapping
work would probably be a very good idea. We're only loosing 5% of the
data is a very, very strange attitude for me. Not because of the data
but because of the people behind that data.
Losing 5% of data will do much more
I think we should find some way to avoid deleting at all. For some
transitional time (in which the data will be still under cc-by-sa but
we will be collecting consent of users for ODbL) mark data coming
from/derived from people uncontactable/disagreeing with license with
some special tag. Let
We can make sure the existing-people-problem doesn't get worse meantime
by making people creating new accounts agree to dual licensing under
CC-BY-SA and ODbL 1.0.
Perhaps give option to agree to ODbL also to existing accounts (though
do not make it mandatory for now). This could also solve
- if you decide to delete contributions and those contributions are
only part of the history of objects, do you rollback to a previous
version of these objects ?
Rollback to the last version before any changes incompatible with the
new licence are made.
This could be perhaps optimized: if
It would be great to require that only free software could use OSM
maps. I saw other peoples agreement on this when we discussed
someone's 3D viewer for OSM data, and the #1 comment on this mailing
list was we shouldn't glorify the use of non-free software.
Proprietary routing software on
On Tue, Mar 3, 2009 at 23:47, Roland Olbricht roland.olbri...@gmx.de wrote:
And what to users who do not log in with a browser?
Send them email. If they don't respond in some time (few weeks?) by
visiting their account, deny them access to uploading new data. That
will make them look in their
On Tue, Mar 3, 2009 at 23:50, Gervase Markham gerv-gm...@gerv.net wrote:
On 03/03/09 18:39, Matthias Julius wrote:
It is not that simple. What if those 5% is half of South Africa? You
certainly can not interpolate overall OSM growth to re-surveying South
Africa.
...which is why this is an
Also, technically, when mixing licenses, we won't have mashup of
cc-by-sa and odbl, we will have mashup of cc-by-sa without consent to
relicense later under odbl and cc-by-sa with consent to relicense
later under odbl.
I guess that would work. The resulting collection would be distributable
OK, so lets assume that some data would have to be deleted (hopefully
not lot of them, otherwise it would probably kill the project and
spawn some forks with complete cc-by-sa data). Where there is the
exact line between deleted and kept data is on another debate, but I
wonder the way how the data
Yes. At least when you expect 10 people to go along and the issue
has the potential to break OSM apart, it would not be a bad idea to send
monthly information about the state of things.
Hmm ... perhaps sometimes it would be good to mass-email all members
when it is about changes with
3. Define a way for feedback from the community. Maybe some unoffical
votes would have given an impression on how well a particular idea would
have worked.
Maybe put up a poll like:
Do you think OSM should change license for all data from cc-by-sa to odbl?
( ) Yes, I agree
( ) Yes, but the
I want to correct something here, there is this view of 100,000 users
needing consent. The number is in fact far smaller for people who ever
made an edit (about 30% of the users). It's vastly smaller still for
anyone who has edited anything significant. It's an easier problem
Considering the
as you said: comments should explain things that *aren't* in the
code, not repeat the code (incorrectly) in english. your example of a
bad comment doesn't answer my question: if you are reading code and
you do not understand why it is written the way it is, don't you read
the comments to find
In that case, the data should not be in OSM but should instead be pulled
in on another level - for example, create transparent tiles to show on
top of OSM tiles, or make a shapefile and pull that in through Mapnik.
Well, if the data won't be in OSM (neither in dumps or in things
received from
I have proposed how a checkbox that allows users to release their
contribution as public domain could be implemented and how we can
solve the derived data problem - we won't solve it technically, we
will leave it to the people wishing to take out PD subsection of data,
but we could make it easier
Right now you can get a static dump + image dump and produce a fully
working copy of a Wikimedia wiki. If all the maps relied on map tiles
hosted somewhere else that would break a lot of things for the static
dump content wise.
I would have to learn more about how these static dumps are
I'm not sure that blurring is what would happen, simply not showing the
data would be what happens. But you're right, by having a blank or
blurred section of an otherwise detailed map just shows that there is
something of interest there.
Well, even if that stupid law would get to reality, it
Well, I thought we would have one layer per each mass import (so you
can look at what was imported) - one layer for TIGER import, one layer
for AND import, etc ... and the data would ge trimported both in that
special layer and in ordinary layer, where everybody can edit it.
In future, we can
what about having a pop-up bubble on features, where the default shows
the osm wiki page discribing the feature.
(ie, if your hovering over an unnamed school, the osm article for
'school' would be shown. If it was labled, the official school website
would be shown?
That would depend on
Hmm ... such link would be of very limited use, due to the not
aggregate in a mapping or geographic application clause. Isn't there
any similar service with less restrictive policies? If there is any,
we can perhaps start convincing authors in 3D warehouse to upload
their models also there :)
Simple proposal for adding power_output tag to power generators
allowing specifying output power.
Could be used to distinguish small (like single pylon acting as wind
power plant) and large (like 2000+ MW) power plants and perhaps
render/not render them according to zoom level, level of detail,
after the wembley mapping party last year i heard suggestions of a
locals=angry tag. maybe we should expand that to include
locals=violent or locals=heavily_armed?
What happened at the Wembley mapping party?
Martin
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talk mailing list
I don't think that is so easy. To avoid conflicts, when replacing
node/way/relation that is on server with newer version, server sends
internal ID/revision number of the way and you have to pass this back
(so two people won't overwrite the same way with their version and
last upload wins - in 0.6,
How large is the current delay before uploaded data became visible?
I've uploaded some changes in JOSM, provided a comment ... and when I
re-downloaded the area again, my changes were not there.
Martin
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talk@openstreetmap.org
I wonder whether there is a desktop app for offline viewing of
Openstreetmap data. Something in which I'll put either planet dump or
some of its excerpts (like one country or continent) and then I can
view (and perhaps also search, route, measure distances, etc ) the
map.
Editors (josm,
But what if that population then consists entirely of Map Maker users?
Is that really beneficial for OSM? I know what you're saying, but it
is reasonable to expect Map Maker users to jump ship to OSM? Is that
even what we should be hoping for?
If just one of them discovers OSM somehow,
On 04/02/2010, John Smith deltafoxtrot...@gmail.com wrote:
On 4 February 2010 21:02, Maarten Deen md...@xs4all.nl wrote:
This of course comes after blocking on email address proves ineffective.
And we even have blacklists for blocking certain get for free e-mail
domains from ever
On 15/02/2010, Pieren pier...@gmail.com wrote:
On Sun, Feb 14, 2010 at 9:54 PM, Richard Weait rich...@weait.com wrote:
Your router example still works. Even if you and I aren't going to
turn left at highway=railway; railway=narrow_gauge we had best give
way to traffic there.
No,
While API 0.6 have implemented object versioning, preventing
accidentally overwriting someone else's changes, with introduction of
atomic uploads now I see many problems with duplicate data.
These come often with imports of data or generally if someone uploads
any new data without modifying any
You can override it by adjusting the Accept-Language settings in your
browser. But how we do language *detection* is a separate from how we
should do content delivery once we've done the detection.
Theoretically, but if you are in some sort of internet cafe outside
your country, you may be
IMHO the tag should contain information from what to what the link is
(like between redidential and secondary, fron tertiary to primary, etc
...), so renderers can properly decide how much important the link to
primary is - it is probably more impornant if it connects to another
primary than case
I don't share your pessimism. I've mapped maxspeed=* quite a bit.
Compared to name=*, it's no harder to map, and it is of increasing
importance. I think we'll get far more than 8% of road names tagged in
the long-term future, and I think the same of maxspeed=*.
Well ... maybe not - since
I guess not, this would mean that anybody (for example any tourist in
a car) can use this road, as long as he ends the journey there (and
parks the car inside the area) - but that is not the case, as only few
individuals actually have the permit to go there.
vehicle=destination is rougly
In the specific case of the OSM database, if you wanted to start doing
this, you would probably need to establish a per-object licensing flag. This
would require significant code changes and I assume you're not volunteering
to do that.
We can assume that user won't change his/her mind too
In the IRC channel i was told, that there are users who paint
empty nodes in the map to mark things like
road is not mapped, but continues here
I do this occasionally, and I'm sure I haven't made this up but got the
practice from someone/somewhere else - when a way is drawn and you
On 16/08/2010, Frederik Ramm frede...@remote.org wrote:
Martin,
MP wrote:
You will make some specific check for three continuous dots? Well,
there are areas with thousands of such orphaned nodes and trying to
check if there are somewhere three dots in a line in such areas
wouldn't
This bandwidth limit cutoff happened to me twice - once today and once
about two weeks back when fixing duplicate data from imports.
The workflow for fixes are generally to download relatively small
piece of affected area (I use either script on planet extracts to
discover which areas contain
I looked at changeset
http://www.openstreetmap.org/browse/changeset/5853571 and I noticed
the page says Has the following 79290 nodes: ... Has the following
15862 ways:
Isn't there supposed to be a limit of 5 elements per changeset
(this one contains about 95000 elements)?
I looked at
Maybe we could work around this by automatically changing the link for
the stored tiles? This would also harm friendly projects with small
tile-download-rates though. If it is technically possible to identify
this application they could also be filtered out.
But what prevents the evil
Does anybody have idea what it is? Seems to be large lot of untagged
lines in middle of the ocean and I don't see what it could be (coral
reefs? some under-sea features?).
http://www.openstreetmap.org/browse/changeset/6234414
What should be done with similar uploads, if the ways are untagged
On Mon, 24 Jan 2011 18:24:48 +1100, Steve Bennett stevag...@gmail.com
wrote:
On Mon, Jan 24, 2011 at 10:25 AM, Anthony o...@inbox.org wrote:
I'm not quite sure why, but I really don't like JOSM.
In my case I think it boils down to:
1) Complicated, idiosyncratic user interface. My brain just
More XAPI servers running on good hardware is the only realistic
solution.
Well, there could perhaps be another solution, like running your own
XAPI server - the minutely diffs are usually less than 100Kb, so the
required bandwidth to download from planet.openstreetmap.org would be
less than
Triggered by your request, I've made a deployable version of OSM3S.
It needs
only modest hardware requirements (1 GB RAM and 40 GB hard disk space
for the
entire world). See
This could be interesting, though having two simultanously updated
copies may not be the best
But I assume you
On Tue, 12 Apr 2011 10:58:05 +0200, Erik Johansson wrote:
On Tue, Apr 12, 2011 at 1:06 AM, Frederik Ramm frede...@remote.org
wrote:
Hi,
Bernhard Zwischenbrugger wrote:
Where can I access the OSM data?
I know it is possible to download the hole planet, setup a
database,...
but that's not
On Mon, 18 Jul 2011 16:05:29 +0100, Ed Loach wrote:
Relations
without
members can be used intentionally,
Can you give an example, please? Because I've tried and failed to
think of any. Perhaps I'm just getting hung up on the name relation
as something which groups its related members in some
On Tue, 19 Jul 2011 10:01:24 +0200, Sarah Hoffmann wrote:
On Mon, Jul 18, 2011 at 10:28:54PM +0100, MP wrote:
On Mon, 18 Jul 2011 16:05:29 +0100, Ed Loach wrote:
Relations
without
members can be used intentionally,
Can you give an example, please? Because I've tried and failed to
think
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