elevation map

General talk
1

Hello,

I’d need to build a gray image of Switzerland based on elevation.

For instance, an image of 2000 x 500 pixels,
and every pixels represents the elevation, with value 0 for -300 meters or less, and value 256 for 3000 meters or more.

Can someone suggest me how to achieve this from the openstreetmap free data?

Best regards,
David

2

OSM data does not contain elevation contour data … but have a look at http://wiki.openstreetmap.org/wiki/SRTM … maybe this helps?