[josm-dev] Meters to Pixels

[M∡rtin Koppenhoefer]

2010/10/28 Irene Pucci <ipucci at navionics.it>:
> Hi!
> Another question..
> There is a method that converts meters in pixels?


this depends on the resolution and aspect ratio of the pixels.
If you print at 300dpi and pixels/dots are 1:1 (height:width) you can
easily calculate that 1 pixel measures 1/300inch =
0,0033333333333333333333333333 inches (rounded). So one pixel is
around 0,000084667 metres at 300 dpi. Screen resolutions vary.

cheers,
Martin