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39 lines
1.2 KiB
39 lines
1.2 KiB
import uuid
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import subprocess
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from pathlib import Path
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import json
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def geojson2vt(uploaded_geojson) -> str:
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"""Convert geojson file to vector tiles
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Args:
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uploaded_geojson: GeoJSON file uploaded by user
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Returns:
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str: vector tiles id
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"""
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# save the uploaded file
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# get a path to the saved geojson
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uploaded_geojson_path = "land.geojson" # replace value with the path to the saved geojson
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vector_tiles_id = uploaded_geojson_path + uuid.uuid4().hex
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tippecanoe_command = f"tippecanoe --maximum-zoom=g --output-to-directory={vector_tiles_id} --drop-densest-as-needed --no-tile-compression {uploaded_geojson_path}"
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#subprocess.run(tippecanoe_command, shell=True) # https://stackoverflow.com/a/51950538/14742462
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metadata_path = Path(vector_tiles_id, "metadata.json")
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with open(metadata_path, "r") as metadata_file:
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metadata = json.load(metadata_file)
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with open("catalog.json", "r") as catalog_file:
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catalog = json.load(catalog_file)
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catalog.append(metadata)
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with open("catalog.json", "w") as catalog_file:
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json.dump(catalog, catalog_file, ensure_ascii=False)
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return vector_tiles_id
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if __name__ == "__main__":
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geojson2vt("ert")
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