Re: [Talk-us] How to get open street maps

[David Niklas]

Just to clarify (I'm going to ask on https://help.openstreetmap.org/).
This also applies to some extent to Andy's reply too.

On Sun, 5 Jun 2016 09:16:31  wrote:
> * David Niklas  [160605 05:28]:
> > On Fri, 3 Jun 2016 22:58:01 +0200
> > Wolfgang Zenker  wrote:  
> >> * David Niklas  [160603 22:47]:  
> > [..]  
> >>> I'm guessing you guys don't know, can you recommend a better ML to
> >>> ask at, OSM has many.
> 
> >> it would help if you specify more clearly what you are looking for.
> >> The problem is that in OSM there is nothing like "the" maps. There
> >> are literally hundreds of very different maps generated from OSM
> >> data and dozends of apps navigating on that data, so you need to
> >> tell us what specific maps or apps you are talking about.
> >> [..]  
> 
> > I got my idea of what "the" maps are from
> > https://wiki.openstreetmap.org/wiki/Planet.osm
> > among which, is the said server.
> > I am trying to get the planet-.osm.bz2 and planet-.osm.pbf
> > files. I wanted to print out maps on my local printer. Being one of
> > those poor hackers out in the middle of no-where, I can't rely on an
> > internet based js or similar map utils.  
> 
> I see; you might have misunderstood that page. First,
> planet-.osm.bz2 and planet-.osm.pbf contain the same data, just
> in different formats, so you would download only one of them.
I knew that, I read that not all programs accept the same data format,
so I am trying to get both and then am going to test the tools to see
what works.

> Second,
> these files don't contain any maps at all, but a dump of the database
> with the raw geodata that is used to create maps from it. Importing
> this dump in a database alone will take several days or weeks dpending
> on how powerful your machine is, and then you would use a program like
> Maknik to generate printable maps from that data (which will take a
> long time as well if you want to generate these maps for the whole
> planet).
I had hoped to cut the US country out of that prior to processing.
Failing that, I could use my machine to import the whole data. My desktop
machine is the 1090T AMD processsor (6 core), it's bottlenecked by IO to
my HDs which are 5400 RPM 2TiB (Hard, not SSD), each in a RAID 5 array.

> I suggest you start with an extract covering a small area (like
> the country of Luxemburg, which is about the size of a rural county
> in the US) to try out the toolchain used to create map images (= render
> map tiles) from the database, and after you got that running use the
> extracts for your area of interest.
> 
> Wolfgang
That's a good idea with one drawback, if the roads change in the US I
will have to download my region again, instead of using rsync. Beings
that I live in a rural area without internet, if I can save bandwidth
that's a good thing.

I have the said data (by some miracle), it's just that it's not correct,
perhaps my disk has hiccuped I timed the download working with the
understanding that the other computers were syncing in UTC time, which
obviously was an incorrect assumption.

On Sat, 4 Jun 2016 16:14:50  wrote:
> However if you really do want "maps" rather than "data", then where to
> go depends on what you want maps for.  For example, various maps that
> are suitable for a Garmin handheld or satnav are available (such as
> http://garmin.openstreetmap.nl/ , see
> http://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Download ), but
> they won't work with (say) MAPS.ME or OsmAnd on a phone.
I wanted to print them. I have no GPS tool and don't want one (unless I
can find an open source one), they tend to have some "interesting"
directions for travel.

Thanks, David

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Re: [Talk-us] How to get open street maps

[ajt1...@gmail.com]

On 28/05/2016 11:51, David Niklas wrote:

Hello,
I downloaded the maps, but they changed over night, so the md5 sums don't
match up. I tried using rsync -cav to ftp.spline.de, but the connection
times out "[Receiver] io timeout after 181 seconds -- exiting" (return
code 30) I know that the port is accessible because I used nmap on it. I
tried passing the --timeout flags but that made no difference. What could
I do? I can't download that much data from scratch and a subset of the
world cannot be resynced with the master?


What to download depends very much on what you want to do.  It sounds 
like you're trying to download the whole planet from a mirror of 
http://planet.osm.org/ (see also 
http://wiki.openstreetmap.org/wiki/Planet.osm ).


If you want OSM data for a small country or region, then I'd start with 
one of the extracts mentioned at those links. 
http://download.geofabrik.de/ is a good start because you can see what 
you're getting and how big it's going to be.


If you really do want OSM data for the whole planet then have a look at 
http://planet.osm.org/planet/2016/ for how often they change - that 
should enable you to time the download of a whole one before it gets 
replaced with a new version (or go for a particular date rather than 
"latest").  It's 50Gb though, so as well as taking a while to download 
it'll take a while to do anything useful with once you have downloaded it.


However if you really do want "maps" rather than "data", then where to 
go depends on what you want maps for.  For example, various maps that 
are suitable for a Garmin handheld or satnav are available (such as 
http://garmin.openstreetmap.nl/ , see 
http://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Download ), but 
they won't work with (say) MAPS.ME or OsmAnd on a phone.


If you instead want all the examples of a particular tag* in OSM, then 
you can start with something like 
http://taginfo.openstreetmap.org/tags/railway=station and click through 
to see that on a map by clicking the "Overpass Turbo" link there (and 
get that data as JSON by clicking the "data" link at the top right).


The best place for general "How do I do X" questions is probably the 
help site https://help.openstreetmap.org/ .


Best Regards,

Andy

* and see http://wiki.openstreetmap.org/wiki/Elements for more info 
about that.



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Re: [Talk-us] How to get open street maps

[David Niklas]

On Sat, 28 May 2016 06:51:52  wrote:
> Hello,
> I downloaded the maps, but they changed over night, so the md5 sums
> don't match up. I tried using rsync -cav to ftp.spline.de, but the
> connection times out "[Receiver] io timeout after 181 seconds --
> exiting" (return code 30) I know that the port is accessible because I
> used nmap on it. I tried passing the --timeout flags but that made no
> difference. What could I do? I can't download that much data from
> scratch and a subset of the world cannot be resynced with the master?

I'm guessing you guys don't know, can you recommend a better ML to ask
at, OSM has many.

Thanks, David

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[Talk-us] How to get open street maps

[David Niklas]

Hello,
I downloaded the maps, but they changed over night, so the md5 sums don't
match up. I tried using rsync -cav to ftp.spline.de, but the connection
times out "[Receiver] io timeout after 181 seconds -- exiting" (return
code 30) I know that the port is accessible because I used nmap on it. I
tried passing the --timeout flags but that made no difference. What could
I do? I can't download that much data from scratch and a subset of the
world cannot be resynced with the master?



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