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32 lines
No EOL
1.1 KiB
Python
32 lines
No EOL
1.1 KiB
Python
import zipfile
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import glob
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from Pathlib import Path
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def band_paths(p, bands, resolution=None):
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'''
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Given a zip file or folder at `p`, returns the paths inside p to the raster files containing
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information for the given bands. Because some bands are available in more than one
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resolution, this can be filtered by prodiding a third parameter (e.g. resolution='10m').
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The returned paths are formatted in the zip scheme as per Apache Commons VFS if necessary
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and can be directly opened by rasterio.
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'''
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if p.endswith('.zip'):
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with zipfile.ZipFile(p) as f:
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files = f.namelist()
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rasters = [f for f in files if f.endswith('.jp2')]
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else:
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rasters = glob.glob(Path(p) / '**/*.jp2'
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rasters = [r for r in rasters for b in bands if b in r]
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if resolution:
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rasters = [r for r in rasters if resolution in r]
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rasters = ['zip+file://' + p + '!/' + r for r in rasters]
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return rasters
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def rgb_paths(zip_file, resolution='10m'):
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return band_paths(zip_file, ['B02', 'B03', 'B04'], resolution) |