Am 22. Dezember 2017 10:06:00 MEZ schrieb Bjoern Hassler <bjohas...@gmail.com>:
>Dear Frederik, dear Paul,
>
>Thank you for your message! I suppose I made the mistake of asking for
>a
>technical fix, rather than fully explaining the problem...
>
>I have 40 small, discontinues areas in Ghana (the 40 public colleges of
>education), like this
>http://www.openstreetmap.org/way/450562441#map=16/7.4129/0.4631
>and I want to produce print. The files itself will be downloaded
>locally
>(or emailed), and then printed locally. So the file needs to be small,
>and
>print resolution (say for A2 or A3).
>
>We're actively editing this at the moment (and have been over the last
>year), so we'd like to print from up-to-date data.
>
>Print + small files, means PDF, as its vector, and can be printed at
>any
>size. I assume PNG at 300dpi, A3, would be massive.
>
>There aren't loads of areas, and manual export would be ok. However,
>because the areas are discontinuous, I am looking for a solution where
>I
>can work from lat/lon, rather than having to manually select areas.
>Once
>this would be ok, but we'd like to be able to repeat the export later.

Maposmatic allows for this, it renders several vector and bitmap formats and 
you can then select the smallest.

Rendered results are only stored for a limited time, but you can request 
re-render with same settings, but up-to-date 
data later if you save the result URL

On mobile right now, will write a 
bit more later ...

>Most
>tools don't allow you to go back to maps that you've already produced,
>to
>reprint simply with data a year on.
>
>
>
>> https://operations.osmfoundation.org/policies/tiles/
>> ...
>
>so using a script to produce these PDFs would violate the policy except
>> in rare circumstances where running the script is triggered by a user
>> request.
>>
>
>I'd be quite happy to click manually. At the moment, I enter the values
>for
>scale manually, resize the browser window so it gives me the right
>nominal
>dimensions (for PDF), then export. However, it would be helpful to have
>a
>preconfigured link, that gives me my settings (scale, dimensions).
>
>>
>> * download and stitch tiles, convert to PDF; search for "OSM bigmap"
>for
>> different implementations.
>
>* use the "staticmap" script on openstreetmap.de like this:
>>
>http://staticmap.openstreetmap.de/staticmap.php?center=40,-50&zoom=2&size=
>> 500x350
>>
>> Both will only give you standard resolution raster images.
>
>
>As above, vector would be preferable.
>
>
>> You could
>> also try
>>
>> * https://maposmatic.osm-baustelle.de/ (a working fork of the
>> discontinued MapOsMatic project, does PDFs)
>>
>
>I'll see whether it's possible to generate maps of predefined areas or
>re-print maps (with the same boundaries). At least from the web UI, it
>doesn't look like it.
>
>
>> * http://printmaps-osm.de:8080/ (Europe only, quarterly data updates,
>> does PDFs in theory but currently only PNG works)
>>
>
>I'm outside Europe, and need up-to-date data.
>
>
>> or if you're on Windows or willing to use Mono, Maperitive can also
>> generate PDFs for any region using data from Overpass, and it's
>> scriptable (even headless).
>>
>
>OK, I'll have a look. However, it looks like it produces only SVG,
>which
>I'd then have to process.
>
>
>>
>> Of course, the canonical solution is "install your own
>> postgres/mapnik/nik4.py and run it locally" ;)
>>
>>
>Paul, why is the recommendation to produce PNG first?
>
>Thanks both for you input - much appreciated!!
>Bjoern


-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

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