On Wed, Oct 02, 2019 at 09:30:26PM +0200, Frederik Ramm wrote: > Hi, > > On 10/2/19 20:36, yves wrote: > > What would be a cheap way to find ways that once were highway=* and are > > now a piste:type=nordic but no more a highway=* ? > > Define "cheap" ;) > > I usually tackle issue like this with a contraption of history file, > osmium, and a script in a programming language of choice (for easy cases > even shell script works). > > The first step is to have osmium convert the history file into "OPL" > format which gives you one ascii text line for every version of an > object, neatly sorted by type, ID, and version:
If I may add to that: I would first filter the history file for the intersting data (i.e. ways with piste:type=nordic) with 'osmium tags-filter' before doing anything else. The resulting file should be much more managable. Sarah _______________________________________________ dev mailing list dev@openstreetmap.org https://lists.openstreetmap.org/listinfo/dev
