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CityRiverSpaces / CRiSp

CRiSp (City River Spaces) provides tools to automate the morphological delineation of riverside urban areas.
https://cityriverspaces.github.io/CRiSp/
Apache License 2.0
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City boundaries #13

Closed cforgaci closed 3 weeks ago

cforgaci commented 3 months ago

The key:value pair "place:city" only works for some cases, our first example Bucharest included. In other cases "boundary:administrative" works instead. We need to generalize this.

fnattino commented 2 months ago

Maybe worth to explore: GADM dataset for "harmonised " administrative boundaries https://gadm.org/index.html

cforgaci commented 2 months ago

Maybe worth to explore: GADM dataset for "harmonised " administrative boundaries https://gadm.org/index.html

I had a look at this dataset with a downloaded version of all admin boundaries (1.6GB).

This is still not perfect. NAME_1 works for Bucharest, while for Paris and Berlin the NAME_2 variable has the name of the city. However, we can search across different levels and return a geometry when it is found.

This works for the examples we've explored so far; each line below returns the correct polygon or multipolygon:

gadm_410[gadm_410$COUNTRY == "Romania" & gadm_410$NAME_1 == "Bucharest",]
gadm_410[gadm_410$COUNTRY == "France" & gadm_410$NAME_2 == "Paris",]
gadm_410[gadm_410$COUNTRY == "Germany" & gadm_410$NAME_2 == "Berlin",]
cforgaci commented 1 month ago

This issue is partially solved in #15. We still need to find a more robust solution.

cforgaci commented 3 weeks ago

I am closing this issue for now. If we encounter issues with the new function we can reopen.