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More accurate OSM element centers calculation

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Alexey Zakharenkov 2022-10-14 10:17:28 +03:00 • committed by Alexey Zakharenkov
parent 8abc48eb86
commit 637c1b303b
1 changed files with 15 additions and 5 deletions
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20
process_subways.py
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@ -94,11 +94,21 @@ def calculate_centers(elements):
return
center = [0, 0]
count = 0
for nd in el['nodes']:
if nd in nodes:
center[0] += nodes[nd][0]
center[1] += nodes[nd][1]
count += 1
way_nodes = el['nodes']
way_nodes_len = len(el['nodes'])
for i, nd in enumerate(way_nodes):
if nd not in nodes:
continue
# Don't count the first node of a closed way twice
if (
i == way_nodes_len - 1
and way_nodes_len > 1
and way_nodes[0] == way_nodes[-1]
):
break
center[0] += nodes[nd][0]
center[1] += nodes[nd][1]
count += 1
if count > 0:
el['center'] = {'lat': center[0] / count, 'lon': center[1] / count}
ways[el['id']] = (el['center']['lat'], el['center']['lon'])