Created
October 29, 2022 20:50
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OSM PBF count statistics about tag usage
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from collections import Counter | |
from datetime import timedelta | |
from itertools import combinations | |
from sys import argv | |
from time import perf_counter | |
import osmium | |
from osmium.osm import Node, Way, Relation | |
class CounterHandler(osmium.SimpleHandler): | |
def __init__(self): | |
osmium.SimpleHandler.__init__(self) | |
self.num_nodes = 0 | |
self.num_ways = 0 | |
self.num_relations = 0 | |
self.tag_counter = Counter() | |
self.value_counter = Counter() | |
self.tag_value_counter = Counter() | |
self.tag_pair_counter = Counter() | |
def add_tag_and_value_counts(self, element): | |
for tag in element.tags: | |
self.tag_counter[tag.k] += 1 | |
self.value_counter[tag.v] += 1 | |
self.tag_value_counter[f'{tag.k}={tag.v}'] += 1 | |
def add_tag_pair_counts(self, element): | |
tags = [tag.k for tag in element.tags] | |
for tag_pair in combinations(sorted(tags), 2): | |
t1, t2 = tag_pair | |
self.tag_pair_counter[f'{t1} + {t2}'] += 1 | |
def node(self, n: Node): | |
self.num_nodes += 1 | |
self.add_tag_and_value_counts(n) | |
self.add_tag_pair_counts(n) | |
def way(self, w: Way): | |
self.num_ways += 1 | |
self.add_tag_and_value_counts(w) | |
self.add_tag_pair_counts(w) | |
def relation(self, r: Relation): | |
self.num_relations += 1 | |
self.add_tag_and_value_counts(r) | |
self.add_tag_pair_counts(r) | |
if __name__ == '__main__': | |
h = CounterHandler() | |
start_time = perf_counter() | |
h.apply_file(argv[1] if len(argv) == 2 else "test.osm.pbf") | |
end_time = perf_counter() | |
delta = end_time - start_time | |
processing_time = timedelta(seconds=delta) | |
print("Processing took:", processing_time) | |
print("Number of nodes: %d" % h.num_nodes) | |
print("Number of ways: %d" % h.num_ways) | |
print("Number of relations: %d" % h.num_relations) | |
print("Most common tags:") | |
for t in h.tag_counter.most_common(5): | |
print(" -", f"{t[0]}: {t[1]}") | |
print("Most common values:") | |
for t in h.value_counter.most_common(5): | |
print(" -", f"{t[0]}: {t[1]}") | |
print("Most common tag=value:") | |
for t in h.tag_value_counter.most_common(5): | |
print(" -", f"{t[0]}: {t[1]}") | |
print("Most common tag combinations:") | |
for t in h.tag_pair_counter.most_common(5): | |
print(" -", f"{t[0]}: {t[1]}") |
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