[OSM-talk] georeferencing OSM

[Łukasz Stelmach]

M∡rtin Koppenhoefer <dieterdreist at gmail.com> writes:

> 2011/3/7 Łukasz Stelmach <stlman at poczta.fm>:

>> 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?
>
>
> you have to provide an additional text file with the parameters for
> your tif (tfw, world file). The file is described e.g. in Wikipedia:
> http://en.wikipedia.org/wiki/World_file

Are you sure. There is a paramtere named "pixel height" which is assumed
to be constant along the image. In Mercator projection this isn't true
pixels in the north represent less degrees than those in the south.

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