I’m trying to define my hometown’s inner boundaries for local democraty district.
I understood tags ans was able to define the first “Bureau”, but something is missing as I don’t understand it.
For example, I have a street named “Street of the Libération”. I can easily define it with attributes or tags to say “that street is a boundary”:
But, as I understood, in this case, the two sides of the street will be considered as a member of the “Quartier Proust” by default.
How can I manage the three different cases:
The street is member of the “Quartier Proust”, BUT only for its (e.g.) left side; the right side is a member of the “Quartier Châteaubriand”;
The street is member of the “Quartier Proust” for its two sides (maybe by default);
The street is an enclave, is geographically inside the “Quartier Proust” but member of the “Quartier Châteaubriand” (should I write ‘inner’ Châteaubriand or ‘outer’ Proust ? Or both ?
The ‘inner’ and ‘outer’ tags are not very clear (even in the french translation).
1) The street is member of the “Quartier Proust”, BUT only for its (e.g.) left side; the right side is a member of the “Quartier Châteaubriand”;
Simply use the nodes of the street as part of the boundary for each of these districts. Ways for streets usually go down the center of the street, so this would indicate that the street is split between the two districts
2) The street is member of the “Quartier Proust” for its two sides (maybe by default);
Make a new way that follows the true boundary of the “Quartier Proust” (maybe follows the right sidewalk or something) and make that the boundary instead of the street way.
3) The street is an enclave, is geographically inside the “Quartier Proust” but member of the “Quartier Châteaubriand” (should I write ‘inner’ Châteaubriand or ‘outer’ Proust ? Or both?
You’ll need to make “Quartier Proust” and “Quartier Châteaubriand” multipolygon relations in order to map this. You don’t tag the ways “inner” or “outer”, but you make a way’s role within a multipolygon “inner” or “outer”.
To map your example, you’ll need to make a way enclosing the street, and its role for the “Quartier Proust” multipolygon should be “inner” and its role for the “Quartier Châteaubriand” multipolygon should be “outer”.
You should better define your tags on relations, using ways, not on the ways itself. Maybe it’s not the best thing for a beginning mapper to start with.