add /elevation #45
Description
Would be nice to add support for the elevation endpoint. I'm sure there's other plugins for that, but probably nothing exposing the mapzen dataset, which is still a pretty decent global coverage/resolution, even though there's many more high resolution datasets which aren't included yet.
The input should come either from:
- the waypoint selector, returning a point layer with Z
- (only for processing) a line layer which we enrich with Z for each vertex (after compressing as polyline)
Probably could also add a elevation option for directions where it'd orchestrate a route, then send it to /elevation before rendering. Since a while we do have elevation_interval, though I never used it myself. The response is not so helpful in the QGIS context, it returns elevation values in fixed intervals, not per vertex.