Is it possible to add contours?
Topic on Help talk:Extension:Kartographer
You mean contour (altitude) lines ? As a separate map style to use, or just additionally mixed in with the current style? Or as an overlay ? And where would this be used exactly, are there examples ?
lots of things are possible in theory, but i think the team is almost winding down again on maps work, so...
maybe @Pnorman can point us to the documentation how to create layer style etc, so that maybe a volunteer would be able to create one.
You can see topos here https://www.openstreetmap.org/#map=13/49.4293/-115.1608&layers=C Topos would be very useful for articles about mountains and hiking trails.
Because OpenStreetMap does not include topography we would need to add a new data source. Usually when one needs world wide topography data one needs to merge many sources therefor I guess it's would require quite a lot of work.
Openstreet maps have a topography layer. It is called "Cycle map"
James
task T153395 is about adding hillshading, which would cover contour lines. It's unlikely to be taken up in the near or medium term, as it's outside the scope of the collaboration work going on right now. It's also unlikely to be done after that because there won't be the resources to add it.
OpenStreetMap doesn't have contour lines. The map layers on osm.org are example renderings, and OpenCycleMap includes height data from other sources.
Okay the contours are much more useful than the hill shading. This was just an idea. Yes height data is what is needed. Not sure the license or were OpenCycleMap gets their data.
James
Why not just add OpenTopoMap support?
Thats an external service that wouldn't be able to handle our levels of traffic, would likely violate our privacy policy etc. So instead we would have to convert the style to our own render pipeline and unfortunately WMF doesn't fund development for maps right now.
But if you can find a volunteer to set it up within the WMF infra, then perhaps.
WikiVoyage gives folks the option to see contours if they want. First time once does this it is associated with a notice that a third party is being used and your data may be share. You can of course decline if you wish and contours will not appear. Here is an example https://en.wikivoyage.org/wiki/Banff#Get_in