A 'play_osm' function to create osm street networks given a bbox or placename

[luukvdmeer]

Is your feature request related to a problem? Please describe.
Tidygraph has a set of play_* functions to create graphs from scratch according to some defined rules/algorithms. For example play_node_degree will create a graph based on a given set of node degrees. See the reference.

Describe the solution you'd like
I am thinking of a function play_osm that allows users to create a graph based on a street network from OpenStreetMap. Inputs to this function will be forwarded directly to the osmdata loading function, so it could be a bounding box or a placename. No cleaning needs to be done (in the end, the function is just meant to "play" with an example). I suggest to not use osmdata as a dependency of the package, but just include an if(!requireNamespace) line at the beginning of the function.

[Robinlovelace]

Great idea. It would be good to give the user some control over which elements are downloaded, e.g. to exclude footpaths and railway tracks if doing vehicle routing.

Links that may be of use here:

• The dodgr_streetnet() function that downloads all highways: https://github.com/ATFutures/dodgr/blob/master/R/dodgr-streetnet.R#L44
• The query argument in osmextract functions to get specific parts of a route network from a pbf file containing OSM data: https://itsleeds.github.io/osmextract/articles/osmextract.html#query

[idshklein]

Great idea. This is very similar to python OSMnx graph from_*. It is preferable that this would be more customizable than OSMnx network types, that are hardcoded in OSMnx code.
In addition, be advised the the current OSMdata package doesn't support using the overpass API (poly:...) selection, rather only bbox, to the best of my knowledge,