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https://github.com/hyperknot/openfreemap.git
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67 lines
2.2 KiB
Python
Executable File
67 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
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import json
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from pathlib import Path
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import click
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@click.command()
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@click.argument(
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'metadata_path', type=click.Path(exists=True, dir_okay=False, file_okay=True, path_type=Path)
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)
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@click.argument('tilejson_path', type=click.Path(path_type=Path))
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@click.argument('url_prefix')
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@click.option('--minify', is_flag=True, help='Minify the generated JSON')
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def cli(metadata_path: Path, tilejson_path: Path, url_prefix: str, minify: bool):
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"""
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Takes a MBTiles metadata.json and generates a TileJSON 3.0.0 file
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URL_PREFIX: Base URL to use as a prefix for tiles in the generated TileJSON.
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Reference: https://github.com/mapbox/tilejson-spec/tree/master/3.0.0
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"""
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tilejson = dict(tilejson='3.0.0')
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with open(metadata_path) as fp:
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metadata = json.load(fp)
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metadata_json_key = json.loads(metadata.pop('json'))
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tilejson['tiles'] = [url_prefix.rstrip('/') + '/{z}/{x}/{y}.pbf']
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''
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tilejson['vector_layers'] = metadata_json_key.pop('vector_layers')
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assert not metadata_json_key # check that no more keys are left
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tilejson['attribution'] = metadata.pop('attribution')
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# overwriting new style OSM license, until fixed in tile_gen
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tilejson['attribution'] = (
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'<a href="https://openfreemap.org" target="_blank">OpenFreeMap</a> '
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'<a href="https://www.openmaptiles.org/" target="_blank">© OpenMapTiles</a> '
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'Data from <a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a>'
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)
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tilejson['bounds'] = [float(n) for n in metadata.pop('bounds').split(',')]
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tilejson['center'] = [float(n) for n in metadata.pop('center').split(',')]
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tilejson['center'][2] = 1
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tilejson['description'] = metadata.pop('description')
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tilejson['maxzoom'] = int(metadata.pop('maxzoom'))
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tilejson['minzoom'] = int(metadata.pop('minzoom'))
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tilejson['name'] = metadata.pop('name')
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tilejson['version'] = metadata.pop('version')
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with open(tilejson_path, 'w') as fp:
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if minify:
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json.dump(tilejson, fp, ensure_ascii=False, separators=(',', ':'))
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else:
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json.dump(tilejson, fp, ensure_ascii=False, indent=2)
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if __name__ == '__main__':
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cli()
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