35 lines
1.5 KiB
Python
Executable file
35 lines
1.5 KiB
Python
Executable file
#!/usr/bin/env nix-shell
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#!nix-shell --quiet -p python312 -p python312Packages.pillow -i python
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# https://svc.pictometry.com/Image/D2B06344-7A2D-5BD0-FC89-DFDDC9888C41/wmts?SERVICE=WMTS&REQUEST=GetCapabilities
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import os
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import urllib.request
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from PIL import Image
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MAX_ZOOM=20
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current, total = 0, (4 ** (MAX_ZOOM - 11) - 1)//3
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for z in range(12, MAX_ZOOM+1):
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scale = 2 ** (z - 12)
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start_x = 985 * scale
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start_y = 1432 * scale
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for x in range(start_x, start_x + scale):
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for y in range(start_y, start_y + scale):
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current += 1
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progress = f"[{current:0{len(str(total))}d}/{total}]"
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url = f"https://svc.pictometry.com/Image/D2B06344-7A2D-5BD0-FC89-DFDDC9888C41/wmts/PICT-MNITAS23-EDVs7UTOVt/default/GoogleMapsCompatible/{z}/{x}/{y}.png"
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file = os.path.normpath(os.path.join(os.path.dirname(__file__), f"../satellite/{z}/{x}/{y}.png"))
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os.makedirs(os.path.dirname(file), exist_ok=True)
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if os.path.isfile(file):
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try: # does it already exist and look good?
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Image.open(file).verify() # CRC check on PNGs; nothing on other file types? https://pillow.readthedocs.io/en/latest/_modules/PIL/PngImagePlugin.html#ChunkStream.verify
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print(f"{progress} {file} already exists; skipping")
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continue
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except OSError as e:
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print(f"{progress} replacing corrupt {file}")
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else:
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print(f"{progress} downloading {file}")
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urllib.request.urlretrieve(url, file)
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