Jukka Rahkonen <jukka.rahko...@latuviitta.fi> writes:

> Łukasz Stelmach <stlman <at> poczta.fm> writes:
>
>> This has been discussed[1] some time ago but the answer is somehow
>> unclear to me. I understand that EPSG:900913 is (may be?) a crappy
>> projection[2]. However, I still need a map of Poland at zoom 6-8
>> warped to EPSG2180. How to use geotifcp (how to prepare metadata) to
>> embed appropriate information in an image exported from
>> OpenStreetmap?
>> 
>> [1] http://thread.gmane.org/gmane.comp.gis.openstreetmap/19958
>> [2] http://wiki.openstreetmap.org/wiki/Exporting_calibrated_maps
>
>
> I would capture first the image of your area by using native
> EPSG:900913 projection with gdal_translate and WMS driver as described
> at the bottom of the document http://gdal.org/frmt_wms.html.

That's it. Thank you.

For future reference

(edit the xml file and set tile level to 7)

gdal_translate -of GTiff -outsize 2014 1959 -projwin 1373199.36 7754019.75 
3121531.52 6052748.56 frmt_wms_openstreetmap_tms.xml openstreetmap.tif

or alternatively

gdal_translate -of GTiff -srcwin 17500 10000 1440 1340 
frmt_wms_openstreetmap_tms.xml openstreetmap.tif

and then

gdalwarp -t_srs EPSG:2180 openstreetmap.tif plepsg2180.tif

and finally

gdal_translate -of GTiff -srcwin 626 101 1367 1368 plepsg2180.tif 
plepsg2180a.tif

to get rid of black borders. This way I get a map between 0 and 2^20
meters in PUWG-1992.

-- 
Było mi bardzo miło.               Czwarta pospolita klęska, [...]
>Łukasz<                 Już nie katolicka lecz złodziejska.  (c)PP


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