Matthias Mohr m-mohr
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| { | |
| "stac_version": "1.0.0", | |
| "stac_extensions": [], | |
| "type": "Feature", | |
| "id": "S2A_MSIL2A_20231107T144731_N0509_R139_T20QRF_20231107T182159", // product URI, ".SAFE" removed | |
| "collection": "sentinel-2-l2a", | |
| "properties": { | |
| "datetime": "2023-11-07T14:47:31.024000Z", | |
| "platform": "Sentinel-2A", | |
| "proj:epsg": 32620, |
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| def encode_varint(value): | |
| """Encode an integer as a varint in bytes.""" | |
| encoded_bytes = bytearray() | |
| while value > 0x7F: | |
| encoded_bytes.append((value & 0x7F) | 0x80) | |
| value >>= 7 | |
| encoded_bytes.append(value) | |
| return bytes(encoded_bytes) | |
| def hex_to_multihash(hexstring_hash, hex_fn_code): |
m-mohr
/ add-geoparquet-metadata.py
Created
July 17, 2023 10:51
Adds geoparquet metadata to a parquet file
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| import json | |
| import pyarrow.parquet as pq | |
| path1 = "pf.parquet" | |
| path2 = "pf.geoparquet" | |
| geo_metadata = { | |
| "version": "1.0.0-beta.1", | |
| "primary_column": "geometry", | |
| "columns": { |
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| { | |
| "dc": { | |
| "process_id": "load_collection", | |
| "description": "Loading the data; The order of the specified bands is important for the following reduce operation.", | |
| "arguments": { | |
| "id": "Sentinel-2", | |
| "spatial_extent": { | |
| "west": 16.1, | |
| "east": 16.6, | |
| "north": 48.6, |
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