[OSM-newbies] How to merge two (or more) osm files into one largefile?

[Brett Henderson]

On Wed, Sep 24, 2008 at 4:34 AM, Jakub Klawiter <jklawiter at gmail.com> wrote:

> Hello!
>
> On Fri, Aug 8, 2008 at 3:03 PM, Brett Henderson <brett at bretth.com> wrote:
> > It's possibly too late now, but the command line to merge two files
> > would look something like this:
> > osmosis --rx file2.osm --rx file1.osm --m --wx merged.osm
> hmm and what if it is not working?
> I was sure that now i know how to and didn't try because poland.osm
> from geofabric was in fact what i want. Untill last holidays,
> poland.osm file from geofabric is not 100% of poland, and i was going
> to place which is NOT on map. So the idea was to add a piece.
>
> At the end i did upload several maps into GPS but now i like to know
> why is it not working.
>
> Here is the log from osmosis: http://www.nopaste.pl/6h9 can anyone
> tell me what i'm doing wrong?


This error message indicates that the second file contains nodes out of
order.  The --merge (--m) task requires all input to be sorted first by
type, then by id.
SEVERE: Thread for task 2-rx failed
com.bretth.osmosis.core.OsmosisRuntimeException: Pipeline entities are
not sorted, previous entity type=Node, id=250465301 current entity
type=Node, id=250465296.It
is

Instead of:
osmosis --rx 52N17E-52.5N17.5E.osm --rx 52N16.5E-52.5N17E.osm --m --wx out.osm

Try:
osmosis --rx 52N17E-52.5N17.5E.osm --sort --rx 52N16.5E-52.5N17E.osm --sort
--m --wx out.osm

That will sort the contents of both files prior to attempting the merge.
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