Change road network to bidirectional in osmnx
Question:
I wonder if I can set all road networks to bidirectional using osmnx? I hope it is bidirectional rather than undirected because I still hope to use some functions like osmnx.truncate. So osmnx.get_undirected(G) cannot help me.
I saw @gboeing mentioned this can be done by changing the global settings. But I am not sure how to do that. Two questions
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The global settings are stored in settings.py file. How can I create a new file and force osmnx uses the new settings.pyfile?
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If I want to make all edges bidirectional, can I just simply set bidirectiional_network_types=['all']?
Answers:
The global settings are stored in settings.py file. How can I create a new file and force osmnx uses the new settings.pyfile?
You can alter osmnx settings by setting variables within osmnx.settings. Example:
import osmnx
osmnx.settings.bidirectional_network_types = ["walk", "drive"]
If I want to make all edges bidirectional, can I just simply set bidirectiional_network_types=[‘all’]?
No, that will not work. The network type you are making bidirectional must match the network_type you’re using in functions such as graph_from_address(). When it checks the bidirectional_network_types list, it checks it in the following fashion:
bidirectional = network_type in settings.bidirectional_network_types
In other words, the argument network_type must exactly match one of the entries inside bidirectional_network_types to be treated as a bidirectional network.
I wonder if I can set all road networks to bidirectional using osmnx? I hope it is bidirectional rather than undirected because I still hope to use some functions like osmnx.truncate. So osmnx.get_undirected(G) cannot help me.
I saw @gboeing mentioned this can be done by changing the global settings. But I am not sure how to do that. Two questions
-
The global settings are stored in
settings.pyfile. How can I create a new file and forceosmnxuses the newsettings.pyfile? -
If I want to make all edges bidirectional, can I just simply set
bidirectiional_network_types=['all']?
The global settings are stored in
settings.pyfile. How can I create a new file and forceosmnxuses the newsettings.pyfile?
You can alter osmnx settings by setting variables within osmnx.settings. Example:
import osmnx
osmnx.settings.bidirectional_network_types = ["walk", "drive"]
If I want to make all edges bidirectional, can I just simply set bidirectiional_network_types=[‘all’]?
No, that will not work. The network type you are making bidirectional must match the network_type you’re using in functions such as graph_from_address(). When it checks the bidirectional_network_types list, it checks it in the following fashion:
bidirectional = network_type in settings.bidirectional_network_types
In other words, the argument network_type must exactly match one of the entries inside bidirectional_network_types to be treated as a bidirectional network.