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outils_OSM
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extraction du nettoyage du JSON pour export

This commit is contained in:
SebF 2021-10-09 15:23:03 +02:00
parent a78342fe73
commit f97ffdb6d9
1 changed files with 40 additions and 42 deletions
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82
recup_donnees_OSM_Overpass.py
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@ -107,6 +107,45 @@ def sauvegarde_json(export_json, dossier, nom_req):
jsonFile.write(json.dumps(export_json))
jsonFile.close()
print("Sauvegarde résultat format JSON/OSM " + nom_req)
def nettoyage_json_pour_umap(data, overpass_query_fields):
export_json = {"version": data["version"],
"generator" : data["generator"] + " and ETALAB API",
"osm3s" : data["osm3s"],
"elements": []
}
index_line = 0
for element in data["elements"]:
export_json["elements"].append({"type" : element["type"],
"id" : element["id"]})
# positionnement des éléments
if (element["type"] == "node") : # noeuds
export_json["elements"][index_line]["lat"] = element["lat"]
export_json["elements"][index_line]["lon"] = element["lon"]
else : # ways et relations
export_json["elements"][index_line]["center"] = element["center"]
export_json["elements"][index_line]["nodes"] = element["nodes"]
# filtrage des tags
description = ""
for tag in overpass_query_fields.keys() :
if overpass_query_fields[tag]["export_json"] == "Oui" :
if tag in element["tags"] :
if overpass_query_fields[tag]["FR"] != "" :
description = description + overpass_query_fields[tag]["FR"] + " : "
description = description + str(element["tags"][tag]) + "\n"
export_json["elements"][index_line]["tags"] = {"description": description}
index_line = index_line + 1
return export_json
def run_overpass_query(query) :
"""Envoie la requête Overpass et retourne la réponse JSON."""
@ -202,48 +241,7 @@ def executer_requete_et_exporter_resultats(nom_req, critere, aire_de_recherche,
print()
"""
print("Sauvegarde résultat format JSON/OSM")
export_json = {"version": data["version"],
"generator" : data["generator"] + " and ETALAB API",
"osm3s" : data["osm3s"],
"elements": []
}
index_line = 0
# on refait un JSON allégé juste avec les données qu'on va afficher sur la carte UMAP
for element in data["elements"]:
export_json["elements"].append({"type" : element["type"],
"id" : element["id"]})
if (element["type"] == "node") :
export_json["elements"][index_line]["lat"] = element["lat"]
export_json["elements"][index_line]["lon"] = element["lon"]
else :
export_json["elements"][index_line]["center"] = element["center"]
export_json["elements"][index_line]["nodes"] = element["nodes"]
#export_json["elements"][index_line]["tags"] = element["tags"]
description = ""
for tag in overpass_query_fields.keys() :
if overpass_query_fields[tag]["export_json"] == "Oui" :
if tag in element["tags"] :
if overpass_query_fields[tag]["FR"] != "" :
description = description + overpass_query_fields[tag]["FR"] + " : "
description = description + str(element["tags"][tag]) + "\n"
export_json["elements"][index_line]["tags"] = {"description": description}
index_line = index_line + 1
export_json = nettoyage_json_pour_umap(data, overpass_query_fields)
# Sauvegarde
os.makedirs(dossier_sauvegarde, exist_ok = True)