[OSM-dev] Scale of downloaded images seems to vary.

[Martin Koppenhoefer]

2018-01-11 12:06 GMT+01:00 Bjoern Hassler <bjohas+mw at gmail.com>:

> Hi Tom, dear friends,
>
> I'm not really sure what you mean by geographical scale?
>
>
> It would be helpful to have text like this:
>
> "This image is 90.7 dpi, or 28 dots per cm.
> If printed at this dpi, the scale will be 1cm to 25,000 cm."
>


note that this will always only be approximate as it will vary across your
sheet of paper (getting smaller towards the equator and bigger towards the
poles in the mercator projection we use), so you would want to say
something like "the scale in the centre of your sheet will be 1 : 25000")

Cheers,
Martin
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