plateau_convert_to_abs_id.py

import xml.etree.ElementTree as ET

def convert_negative_ids(elements):
    id_map = {}
    new_elements = []

    for elem in elements:
        orig_id = int(elem.attrib['id'])
        new_id = abs(orig_id)
        id_map[new_id] = orig_id
        elem.set('id', str(new_id))
        new_elements.append(elem)
    
    return new_elements, id_map

def restore_negative_ids(elements, id_map):
    for elem in elements:
        new_id = int(elem.attrib['id'])
        orig_id = id_map[new_id]
        elem.set('id', str(orig_id))

def sort_osm_elements(input_file, output_file):
    tree = ET.parse(input_file)
    root = tree.getroot()

    nodes = []
    ways = []
    relations = []

    for elem in root:
        if elem.tag == 'node':
            nodes.append(elem)
        elif elem.tag == 'way':
            ways.append(elem)
        elif elem.tag == 'relation':
            relations.append(elem)

    # 負のIDを正のIDに変換
    nodes, node_id_map = convert_negative_ids(nodes)
    ways, way_id_map = convert_negative_ids(ways)
    relations, relation_id_map = convert_negative_ids(relations)

    # IDでソート
    nodes.sort(key=lambda x: int(x.attrib['id']))
    ways.sort(key=lambda x: int(x.attrib['id']))
    relations.sort(key=lambda x: int(x.attrib['id']))

    # 新しいOSMファイルに書き出し
    new_root = ET.Element('osm', version='0.6', generator='sort_osm_script')

    for node in nodes:
        new_root.append(node)
    for way in ways:
        new_root.append(way)
    for relation in relations:
        new_root.append(relation)

    # ソート後に元のIDに戻す
    restore_negative_ids(nodes, node_id_map)
    restore_negative_ids(ways, way_id_map)
    restore_negative_ids(relations, relation_id_map)

    # XML宣言を含めて出力
    new_tree = ET.ElementTree(new_root)
    new_tree.write(output_file, encoding='utf-8', xml_declaration=True)

input_file = 'input.osm'
output_file = 'output.osm'

sort_osm_elements(input_file, output_file)

print(f"Sorted OSM file saved as {output_file}")

cp 53401214_bldg_6697_op.osm input.osm
python3 plateau_convert_to_abs_id.py
osmium export output.osm -o 53401214_bldg_6697_op.osm.geojsonseq 
tippecanoe -o 53401214_bldg_6697_op.osm.pmtiles 53401214_bldg_6697_op.osm.geojsonseq