M∡rtin Koppenhoefer <dieterdre...@gmail.com> writes:

> 2010/11/17 Matthias Julius <li...@julius-net.net>:
>>
>> On Wed, 17 Nov 2010 18:20:39 +0100, M∡rtin Koppenhoefer
>> <dieterdre...@gmail.com> wrote:
>>> Btw: isn't a rendering a derived database as well?
>>
>> A database of pixels?  I would not regard a printed map as a database.
>> And neither would I the electronic version of that.
>>
>> One could argue about a "rendered" vector map.
>
> I think that this distinction is nonsense, a vector map has a certain
> resolution just like a georeferenced bitmap has.

There is no reason for a vector map to have a lower resolution than the
OSM data itself.  But, this is not the point.  The difference to a
bitmap is that a vector image contains descrete objects which someone
could import directly into a database.  So, one could view a vector map
as a database of map objects.

Each .osm file already is a vector map.

Matthias

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